./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2083995489 <...> l(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14339] close(4) = 0 [pid 14339] close(3) = 0 [pid 14339] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14339] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14339] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14339] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14339] open("./bus", O_RDONLY) = 3 [pid 14339] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14339] exit_group(0) = ? [pid 14339] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14339, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14340 ./strace-static-x86_64: Process 14340 attached [pid 14340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14340] setpgid(0, 0) = 0 [pid 14340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14340] write(3, "1000", 4) = 4 [pid 14340] close(3) = 0 [pid 14340] memfd_create("syzkaller", 0) = 3 [pid 14340] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14340] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14340] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14340] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14340] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14340] ioctl(4, LOOP_CLR_FD) = 0 [pid 14340] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14340] close(4) = 0 [pid 14340] close(3) = 0 [pid 14340] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14340] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14340] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14340] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14340] open("./bus", O_RDONLY) = 3 [pid 14340] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14340] exit_group(0) = ? [pid 14340] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14340, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14341 ./strace-static-x86_64: Process 14341 attached [pid 14341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14341] setpgid(0, 0) = 0 [pid 14341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14341] write(3, "1000", 4) = 4 [pid 14341] close(3) = 0 [pid 14341] memfd_create("syzkaller", 0) = 3 [pid 14341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14341] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14341] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14341] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14341] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14341] ioctl(4, LOOP_CLR_FD) = 0 [pid 14341] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14341] close(4) = 0 [pid 14341] close(3) = 0 [pid 14341] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14341] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14341] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14341] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14341] open("./bus", O_RDONLY) = 3 [pid 14341] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14341] exit_group(0) = ? [pid 14341] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14341, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14342 ./strace-static-x86_64: Process 14342 attached [pid 14342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14342] setpgid(0, 0) = 0 [pid 14342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14342] write(3, "1000", 4) = 4 [pid 14342] close(3) = 0 [pid 14342] memfd_create("syzkaller", 0) = 3 [pid 14342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14342] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14342] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14342] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14342] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14342] ioctl(4, LOOP_CLR_FD) = 0 [pid 14342] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14342] close(4) = 0 [pid 14342] close(3) = 0 [pid 14342] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14342] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14342] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14342] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14342] open("./bus", O_RDONLY) = 3 [pid 14342] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14342] exit_group(0) = ? [pid 14342] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14342, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14343 ./strace-static-x86_64: Process 14343 attached [pid 14343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14343] setpgid(0, 0) = 0 [pid 14343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14343] write(3, "1000", 4) = 4 [pid 14343] close(3) = 0 [pid 14343] memfd_create("syzkaller", 0) = 3 [pid 14343] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14343] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14343] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14343] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14343] ioctl(4, LOOP_CLR_FD) = 0 [pid 14343] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14343] close(4) = 0 [pid 14343] close(3) = 0 [pid 14343] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14343] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14343] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14343] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14343] open("./bus", O_RDONLY) = 3 [pid 14343] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14343] exit_group(0) = ? [pid 14343] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14343, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14344 ./strace-static-x86_64: Process 14344 attached [pid 14344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14344] setpgid(0, 0) = 0 [pid 14344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14344] write(3, "1000", 4) = 4 [pid 14344] close(3) = 0 [pid 14344] memfd_create("syzkaller", 0) = 3 [pid 14344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14344] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14344] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14344] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14344] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14344] ioctl(4, LOOP_CLR_FD) = 0 [pid 14344] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14344] close(4) = 0 [pid 14344] close(3) = 0 [pid 14344] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14344] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14344] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14344] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14344] open("./bus", O_RDONLY) = 3 [pid 14344] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14344] exit_group(0) = ? [pid 14344] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14344, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14345 ./strace-static-x86_64: Process 14345 attached [pid 14345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14345] setpgid(0, 0) = 0 [pid 14345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14345] write(3, "1000", 4) = 4 [pid 14345] close(3) = 0 [pid 14345] memfd_create("syzkaller", 0) = 3 [pid 14345] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14345] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14345] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14345] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14345] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14345] ioctl(4, LOOP_CLR_FD) = 0 [pid 14345] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14345] close(4) = 0 [pid 14345] close(3) = 0 [pid 14345] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14345] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14345] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14345] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14345] open("./bus", O_RDONLY) = 3 [pid 14345] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14345] exit_group(0) = ? [pid 14345] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14345, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14346 attached , child_tidptr=0x5555575235d0) = 14346 [pid 14346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14346] setpgid(0, 0) = 0 [pid 14346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14346] write(3, "1000", 4) = 4 [pid 14346] close(3) = 0 [pid 14346] memfd_create("syzkaller", 0) = 3 [pid 14346] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14346] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14346] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14346] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14346] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14346] ioctl(4, LOOP_CLR_FD) = 0 [pid 14346] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14346] close(4) = 0 [pid 14346] close(3) = 0 [pid 14346] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14346] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14346] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14346] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14346] open("./bus", O_RDONLY) = 3 [pid 14346] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14346] exit_group(0) = ? [pid 14346] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14346, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14347 attached , child_tidptr=0x5555575235d0) = 14347 [pid 14347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14347] setpgid(0, 0) = 0 [pid 14347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14347] write(3, "1000", 4) = 4 [pid 14347] close(3) = 0 [pid 14347] memfd_create("syzkaller", 0) = 3 [pid 14347] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14347] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14347] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14347] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14347] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14347] ioctl(4, LOOP_CLR_FD) = 0 [pid 14347] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14347] close(4) = 0 [pid 14347] close(3) = 0 [pid 14347] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14347] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14347] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14347] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14347] open("./bus", O_RDONLY) = 3 [pid 14347] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14347] exit_group(0) = ? [pid 14347] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14347, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14348 ./strace-static-x86_64: Process 14348 attached [pid 14348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14348] setpgid(0, 0) = 0 [pid 14348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14348] write(3, "1000", 4) = 4 [pid 14348] close(3) = 0 [pid 14348] memfd_create("syzkaller", 0) = 3 [pid 14348] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14348] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14348] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14348] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14348] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14348] ioctl(4, LOOP_CLR_FD) = 0 [pid 14348] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14348] close(4) = 0 [pid 14348] close(3) = 0 [pid 14348] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14348] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14348] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14348] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14348] open("./bus", O_RDONLY) = 3 [pid 14348] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14348] exit_group(0) = ? [pid 14348] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14348, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14349 ./strace-static-x86_64: Process 14349 attached [pid 14349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14349] setpgid(0, 0) = 0 [pid 14349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14349] write(3, "1000", 4) = 4 [pid 14349] close(3) = 0 [pid 14349] memfd_create("syzkaller", 0) = 3 [pid 14349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14349] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14349] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14349] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14349] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14349] ioctl(4, LOOP_CLR_FD) = 0 [pid 14349] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14349] close(4) = 0 [pid 14349] close(3) = 0 [pid 14349] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14349] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14349] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14349] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14349] open("./bus", O_RDONLY) = 3 [pid 14349] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14349] exit_group(0) = ? [pid 14349] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14349, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14350 ./strace-static-x86_64: Process 14350 attached [pid 14350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14350] setpgid(0, 0) = 0 [pid 14350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14350] write(3, "1000", 4) = 4 [pid 14350] close(3) = 0 [pid 14350] memfd_create("syzkaller", 0) = 3 [pid 14350] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14350] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14350] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14350] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14350] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14350] ioctl(4, LOOP_CLR_FD) = 0 [pid 14350] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14350] close(4) = 0 [pid 14350] close(3) = 0 [pid 14350] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14350] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14350] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14350] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14350] open("./bus", O_RDONLY) = 3 [pid 14350] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14350] exit_group(0) = ? [pid 14350] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14350, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14351 ./strace-static-x86_64: Process 14351 attached [pid 14351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14351] setpgid(0, 0) = 0 [pid 14351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14351] write(3, "1000", 4) = 4 [pid 14351] close(3) = 0 [pid 14351] memfd_create("syzkaller", 0) = 3 [pid 14351] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14351] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14351] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14351] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14351] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14351] ioctl(4, LOOP_CLR_FD) = 0 [pid 14351] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14351] close(4) = 0 [ 255.434896][ T1210] ieee802154 phy0 wpan0: encryption failed: -22 [ 255.441232][ T1210] ieee802154 phy1 wpan1: encryption failed: -22 [pid 14351] close(3) = 0 [pid 14351] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14351] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14351] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14351] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14351] open("./bus", O_RDONLY) = 3 [pid 14351] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14351] exit_group(0) = ? [pid 14351] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14351, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14352 ./strace-static-x86_64: Process 14352 attached [pid 14352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14352] setpgid(0, 0) = 0 [pid 14352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14352] write(3, "1000", 4) = 4 [pid 14352] close(3) = 0 [pid 14352] memfd_create("syzkaller", 0) = 3 [pid 14352] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14352] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14352] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14352] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14352] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14352] ioctl(4, LOOP_CLR_FD) = 0 [pid 14352] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14352] close(4) = 0 [pid 14352] close(3) = 0 [pid 14352] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14352] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14352] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14352] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14352] open("./bus", O_RDONLY) = 3 [pid 14352] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14352] exit_group(0) = ? [pid 14352] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14352, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14353 ./strace-static-x86_64: Process 14353 attached [pid 14353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14353] setpgid(0, 0) = 0 [pid 14353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14353] write(3, "1000", 4) = 4 [pid 14353] close(3) = 0 [pid 14353] memfd_create("syzkaller", 0) = 3 [pid 14353] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14353] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14353] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14353] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14353] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14353] ioctl(4, LOOP_CLR_FD) = 0 [pid 14353] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14353] close(4) = 0 [pid 14353] close(3) = 0 [pid 14353] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14353] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14353] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14353] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14353] open("./bus", O_RDONLY) = 3 [pid 14353] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14353] exit_group(0) = ? [pid 14353] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14353, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14354 ./strace-static-x86_64: Process 14354 attached [pid 14354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14354] setpgid(0, 0) = 0 [pid 14354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14354] write(3, "1000", 4) = 4 [pid 14354] close(3) = 0 [pid 14354] memfd_create("syzkaller", 0) = 3 [pid 14354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14354] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14354] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14354] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14354] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14354] ioctl(4, LOOP_CLR_FD) = 0 [pid 14354] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14354] close(4) = 0 [pid 14354] close(3) = 0 [pid 14354] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14354] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14354] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14354] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14354] open("./bus", O_RDONLY) = 3 [pid 14354] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14354] exit_group(0) = ? [pid 14354] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14354, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14355 ./strace-static-x86_64: Process 14355 attached [pid 14355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14355] setpgid(0, 0) = 0 [pid 14355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14355] write(3, "1000", 4) = 4 [pid 14355] close(3) = 0 [pid 14355] memfd_create("syzkaller", 0) = 3 [pid 14355] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14355] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14355] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14355] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14355] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14355] ioctl(4, LOOP_CLR_FD) = 0 [pid 14355] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14355] close(4) = 0 [pid 14355] close(3) = 0 [pid 14355] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14355] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14355] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14355] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14355] open("./bus", O_RDONLY) = 3 [pid 14355] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14355] exit_group(0) = ? [pid 14355] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14355, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14356 ./strace-static-x86_64: Process 14356 attached [pid 14356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14356] setpgid(0, 0) = 0 [pid 14356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14356] write(3, "1000", 4) = 4 [pid 14356] close(3) = 0 [pid 14356] memfd_create("syzkaller", 0) = 3 [pid 14356] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14356] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14356] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14356] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14356] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14356] ioctl(4, LOOP_CLR_FD) = 0 [pid 14356] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14356] close(4) = 0 [pid 14356] close(3) = 0 [pid 14356] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14356] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14356] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14356] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14356] open("./bus", O_RDONLY) = 3 [pid 14356] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14356] exit_group(0) = ? [pid 14356] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14356, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14357 ./strace-static-x86_64: Process 14357 attached [pid 14357] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14357] setpgid(0, 0) = 0 [pid 14357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14357] write(3, "1000", 4) = 4 [pid 14357] close(3) = 0 [pid 14357] memfd_create("syzkaller", 0) = 3 [pid 14357] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14357] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14357] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14357] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14357] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14357] ioctl(4, LOOP_CLR_FD) = 0 [pid 14357] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14357] close(4) = 0 [pid 14357] close(3) = 0 [pid 14357] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14357] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14357] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14357] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14357] open("./bus", O_RDONLY) = 3 [pid 14357] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14357] exit_group(0) = ? [pid 14357] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14357, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14358 ./strace-static-x86_64: Process 14358 attached [pid 14358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14358] setpgid(0, 0) = 0 [pid 14358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14358] write(3, "1000", 4) = 4 [pid 14358] close(3) = 0 [pid 14358] memfd_create("syzkaller", 0) = 3 [pid 14358] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14358] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14358] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14358] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14358] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14358] ioctl(4, LOOP_CLR_FD) = 0 [pid 14358] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14358] close(4) = 0 [pid 14358] close(3) = 0 [pid 14358] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14358] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14358] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14358] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14358] open("./bus", O_RDONLY) = 3 [pid 14358] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14358] exit_group(0) = ? [pid 14358] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14358, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14359 ./strace-static-x86_64: Process 14359 attached [pid 14359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14359] setpgid(0, 0) = 0 [pid 14359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14359] write(3, "1000", 4) = 4 [pid 14359] close(3) = 0 [pid 14359] memfd_create("syzkaller", 0) = 3 [pid 14359] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14359] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14359] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14359] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14359] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14359] ioctl(4, LOOP_CLR_FD) = 0 [pid 14359] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14359] close(4) = 0 [pid 14359] close(3) = 0 [pid 14359] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14359] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14359] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14359] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14359] open("./bus", O_RDONLY) = 3 [pid 14359] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14359] exit_group(0) = ? [pid 14359] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14359, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14360 ./strace-static-x86_64: Process 14360 attached [pid 14360] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14360] setpgid(0, 0) = 0 [pid 14360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14360] write(3, "1000", 4) = 4 [pid 14360] close(3) = 0 [pid 14360] memfd_create("syzkaller", 0) = 3 [pid 14360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14360] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14360] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14360] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14360] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14360] ioctl(4, LOOP_CLR_FD) = 0 [pid 14360] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14360] close(4) = 0 [pid 14360] close(3) = 0 [pid 14360] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14360] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14360] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14360] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14360] open("./bus", O_RDONLY) = 3 [pid 14360] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14360] exit_group(0) = ? [pid 14360] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14360, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14361 ./strace-static-x86_64: Process 14361 attached [pid 14361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14361] setpgid(0, 0) = 0 [pid 14361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14361] write(3, "1000", 4) = 4 [pid 14361] close(3) = 0 [pid 14361] memfd_create("syzkaller", 0) = 3 [pid 14361] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14361] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14361] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14361] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14361] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14361] ioctl(4, LOOP_CLR_FD) = 0 [pid 14361] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14361] close(4) = 0 [pid 14361] close(3) = 0 [pid 14361] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14361] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14361] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14361] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14361] open("./bus", O_RDONLY) = 3 [pid 14361] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14361] exit_group(0) = ? [pid 14361] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14361, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14362 ./strace-static-x86_64: Process 14362 attached [pid 14362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14362] setpgid(0, 0) = 0 [pid 14362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14362] write(3, "1000", 4) = 4 [pid 14362] close(3) = 0 [pid 14362] memfd_create("syzkaller", 0) = 3 [pid 14362] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14362] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14362] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14362] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14362] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14362] ioctl(4, LOOP_CLR_FD) = 0 [pid 14362] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14362] close(4) = 0 [pid 14362] close(3) = 0 [pid 14362] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14362] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14362] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14362] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14362] open("./bus", O_RDONLY) = 3 [pid 14362] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14362] exit_group(0) = ? [pid 14362] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14362, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14363 ./strace-static-x86_64: Process 14363 attached [pid 14363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14363] setpgid(0, 0) = 0 [pid 14363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14363] write(3, "1000", 4) = 4 [pid 14363] close(3) = 0 [pid 14363] memfd_create("syzkaller", 0) = 3 [pid 14363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14363] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14363] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14363] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14363] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14363] ioctl(4, LOOP_CLR_FD) = 0 [pid 14363] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14363] close(4) = 0 [pid 14363] close(3) = 0 [pid 14363] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14363] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14363] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14363] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14363] open("./bus", O_RDONLY) = 3 [pid 14363] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14363] exit_group(0) = ? [pid 14363] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14363, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14364 ./strace-static-x86_64: Process 14364 attached [pid 14364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14364] setpgid(0, 0) = 0 [pid 14364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14364] write(3, "1000", 4) = 4 [pid 14364] close(3) = 0 [pid 14364] memfd_create("syzkaller", 0) = 3 [pid 14364] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14364] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14364] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14364] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14364] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14364] ioctl(4, LOOP_CLR_FD) = 0 [pid 14364] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14364] close(4) = 0 [pid 14364] close(3) = 0 [pid 14364] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14364] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14364] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14364] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14364] open("./bus", O_RDONLY) = 3 [pid 14364] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14364] exit_group(0) = ? [pid 14364] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14364, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14365 ./strace-static-x86_64: Process 14365 attached [pid 14365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14365] setpgid(0, 0) = 0 [pid 14365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14365] write(3, "1000", 4) = 4 [pid 14365] close(3) = 0 [pid 14365] memfd_create("syzkaller", 0) = 3 [pid 14365] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14365] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14365] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14365] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14365] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14365] ioctl(4, LOOP_CLR_FD) = 0 [pid 14365] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14365] close(4) = 0 [pid 14365] close(3) = 0 [pid 14365] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14365] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14365] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14365] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14365] open("./bus", O_RDONLY) = 3 [pid 14365] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14365] exit_group(0) = ? [pid 14365] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14365, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14366 ./strace-static-x86_64: Process 14366 attached [pid 14366] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14366] setpgid(0, 0) = 0 [pid 14366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14366] write(3, "1000", 4) = 4 [pid 14366] close(3) = 0 [pid 14366] memfd_create("syzkaller", 0) = 3 [pid 14366] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14366] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14366] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14366] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14366] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14366] ioctl(4, LOOP_CLR_FD) = 0 [pid 14366] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14366] close(4) = 0 [pid 14366] close(3) = 0 [pid 14366] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14366] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14366] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14366] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14366] open("./bus", O_RDONLY) = 3 [pid 14366] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14366] exit_group(0) = ? [pid 14366] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14366, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14367 ./strace-static-x86_64: Process 14367 attached [pid 14367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14367] setpgid(0, 0) = 0 [pid 14367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14367] write(3, "1000", 4) = 4 [pid 14367] close(3) = 0 [pid 14367] memfd_create("syzkaller", 0) = 3 [pid 14367] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14367] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14367] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14367] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14367] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14367] ioctl(4, LOOP_CLR_FD) = 0 [pid 14367] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14367] close(4) = 0 [pid 14367] close(3) = 0 [pid 14367] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14367] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14367] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14367] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14367] open("./bus", O_RDONLY) = 3 [pid 14367] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14367] exit_group(0) = ? [pid 14367] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14367, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14368 attached , child_tidptr=0x5555575235d0) = 14368 [pid 14368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14368] setpgid(0, 0) = 0 [pid 14368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14368] write(3, "1000", 4) = 4 [pid 14368] close(3) = 0 [pid 14368] memfd_create("syzkaller", 0) = 3 [pid 14368] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14368] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14368] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14368] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14368] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14368] ioctl(4, LOOP_CLR_FD) = 0 [pid 14368] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14368] close(4) = 0 [pid 14368] close(3) = 0 [pid 14368] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14368] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14368] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14368] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14368] open("./bus", O_RDONLY) = 3 [pid 14368] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14368] exit_group(0) = ? [pid 14368] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14368, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14369 attached , child_tidptr=0x5555575235d0) = 14369 [pid 14369] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14369] setpgid(0, 0) = 0 [pid 14369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14369] write(3, "1000", 4) = 4 [pid 14369] close(3) = 0 [pid 14369] memfd_create("syzkaller", 0) = 3 [pid 14369] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14369] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14369] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14369] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14369] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14369] ioctl(4, LOOP_CLR_FD) = 0 [pid 14369] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14369] close(4) = 0 [pid 14369] close(3) = 0 [pid 14369] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14369] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14369] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14369] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14369] open("./bus", O_RDONLY) = 3 [pid 14369] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14369] exit_group(0) = ? [pid 14369] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14369, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14370 ./strace-static-x86_64: Process 14370 attached [pid 14370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14370] setpgid(0, 0) = 0 [pid 14370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14370] write(3, "1000", 4) = 4 [pid 14370] close(3) = 0 [pid 14370] memfd_create("syzkaller", 0) = 3 [pid 14370] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14370] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14370] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14370] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14370] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14370] ioctl(4, LOOP_CLR_FD) = 0 [pid 14370] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14370] close(4) = 0 [pid 14370] close(3) = 0 [pid 14370] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14370] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14370] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14370] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14370] open("./bus", O_RDONLY) = 3 [pid 14370] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14370] exit_group(0) = ? [pid 14370] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14370, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14371 attached , child_tidptr=0x5555575235d0) = 14371 [pid 14371] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14371] setpgid(0, 0) = 0 [pid 14371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14371] write(3, "1000", 4) = 4 [pid 14371] close(3) = 0 [pid 14371] memfd_create("syzkaller", 0) = 3 [pid 14371] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14371] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14371] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14371] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14371] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14371] ioctl(4, LOOP_CLR_FD) = 0 [pid 14371] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14371] close(4) = 0 [pid 14371] close(3) = 0 [pid 14371] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14371] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14371] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14371] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14371] open("./bus", O_RDONLY) = 3 [pid 14371] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14371] exit_group(0) = ? [pid 14371] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14371, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14372 attached , child_tidptr=0x5555575235d0) = 14372 [pid 14372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14372] setpgid(0, 0) = 0 [pid 14372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14372] write(3, "1000", 4) = 4 [pid 14372] close(3) = 0 [pid 14372] memfd_create("syzkaller", 0) = 3 [pid 14372] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14372] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14372] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14372] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14372] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14372] ioctl(4, LOOP_CLR_FD) = 0 [pid 14372] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14372] close(4) = 0 [pid 14372] close(3) = 0 [pid 14372] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14372] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14372] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14372] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14372] open("./bus", O_RDONLY) = 3 [pid 14372] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14372] exit_group(0) = ? [pid 14372] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14372, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14373 attached , child_tidptr=0x5555575235d0) = 14373 [pid 14373] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14373] setpgid(0, 0) = 0 [pid 14373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14373] write(3, "1000", 4) = 4 [pid 14373] close(3) = 0 [pid 14373] memfd_create("syzkaller", 0) = 3 [pid 14373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14373] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14373] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14373] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14373] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14373] ioctl(4, LOOP_CLR_FD) = 0 [pid 14373] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14373] close(4) = 0 [pid 14373] close(3) = 0 [pid 14373] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14373] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14373] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14373] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14373] open("./bus", O_RDONLY) = 3 [pid 14373] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14373] exit_group(0) = ? [pid 14373] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14373, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14374 ./strace-static-x86_64: Process 14374 attached [pid 14374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14374] setpgid(0, 0) = 0 [pid 14374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14374] write(3, "1000", 4) = 4 [pid 14374] close(3) = 0 [pid 14374] memfd_create("syzkaller", 0) = 3 [pid 14374] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14374] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14374] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14374] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14374] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14374] ioctl(4, LOOP_CLR_FD) = 0 [pid 14374] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14374] close(4) = 0 [pid 14374] close(3) = 0 [pid 14374] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14374] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14374] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14374] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14374] open("./bus", O_RDONLY) = 3 [pid 14374] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14374] exit_group(0) = ? [pid 14374] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14374, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14375 ./strace-static-x86_64: Process 14375 attached [pid 14375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14375] setpgid(0, 0) = 0 [pid 14375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14375] write(3, "1000", 4) = 4 [pid 14375] close(3) = 0 [pid 14375] memfd_create("syzkaller", 0) = 3 [pid 14375] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14375] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14375] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14375] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14375] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14375] ioctl(4, LOOP_CLR_FD) = 0 [pid 14375] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14375] close(4) = 0 [pid 14375] close(3) = 0 [pid 14375] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14375] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14375] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14375] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14375] open("./bus", O_RDONLY) = 3 [pid 14375] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14375] exit_group(0) = ? [pid 14375] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14375, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14376 ./strace-static-x86_64: Process 14376 attached [pid 14376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14376] setpgid(0, 0) = 0 [pid 14376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14376] write(3, "1000", 4) = 4 [pid 14376] close(3) = 0 [pid 14376] memfd_create("syzkaller", 0) = 3 [pid 14376] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14376] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14376] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14376] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14376] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14376] ioctl(4, LOOP_CLR_FD) = 0 [pid 14376] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14376] close(4) = 0 [pid 14376] close(3) = 0 [pid 14376] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14376] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14376] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14376] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14376] open("./bus", O_RDONLY) = 3 [pid 14376] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14376] exit_group(0) = ? [pid 14376] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14376, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14377 ./strace-static-x86_64: Process 14377 attached [pid 14377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14377] setpgid(0, 0) = 0 [pid 14377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14377] write(3, "1000", 4) = 4 [pid 14377] close(3) = 0 [pid 14377] memfd_create("syzkaller", 0) = 3 [pid 14377] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14377] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14377] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14377] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14377] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14377] ioctl(4, LOOP_CLR_FD) = 0 [pid 14377] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14377] close(4) = 0 [pid 14377] close(3) = 0 [pid 14377] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14377] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14377] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14377] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14377] open("./bus", O_RDONLY) = 3 [pid 14377] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14377] exit_group(0) = ? [pid 14377] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14377, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14378 ./strace-static-x86_64: Process 14378 attached [pid 14378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14378] setpgid(0, 0) = 0 [pid 14378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14378] write(3, "1000", 4) = 4 [pid 14378] close(3) = 0 [pid 14378] memfd_create("syzkaller", 0) = 3 [pid 14378] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14378] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14378] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14378] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14378] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14378] ioctl(4, LOOP_CLR_FD) = 0 [pid 14378] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14378] close(4) = 0 [pid 14378] close(3) = 0 [pid 14378] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14378] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14378] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14378] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14378] open("./bus", O_RDONLY) = 3 [pid 14378] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14378] exit_group(0) = ? [pid 14378] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14378, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14379 ./strace-static-x86_64: Process 14379 attached [pid 14379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14379] setpgid(0, 0) = 0 [pid 14379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14379] write(3, "1000", 4) = 4 [pid 14379] close(3) = 0 [pid 14379] memfd_create("syzkaller", 0) = 3 [pid 14379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14379] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14379] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14379] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14379] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14379] ioctl(4, LOOP_CLR_FD) = 0 [pid 14379] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14379] close(4) = 0 [pid 14379] close(3) = 0 [pid 14379] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14379] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14379] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14379] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14379] open("./bus", O_RDONLY) = 3 [pid 14379] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14379] exit_group(0) = ? [pid 14379] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14379, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14380 attached , child_tidptr=0x5555575235d0) = 14380 [pid 14380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14380] setpgid(0, 0) = 0 [pid 14380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14380] write(3, "1000", 4) = 4 [pid 14380] close(3) = 0 [pid 14380] memfd_create("syzkaller", 0) = 3 [pid 14380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14380] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14380] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14380] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14380] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14380] ioctl(4, LOOP_CLR_FD) = 0 [pid 14380] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14380] close(4) = 0 [pid 14380] close(3) = 0 [pid 14380] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14380] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14380] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14380] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14380] open("./bus", O_RDONLY) = 3 [pid 14380] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14380] exit_group(0) = ? [pid 14380] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14380, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14381 ./strace-static-x86_64: Process 14381 attached [pid 14381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14381] setpgid(0, 0) = 0 [pid 14381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14381] write(3, "1000", 4) = 4 [pid 14381] close(3) = 0 [pid 14381] memfd_create("syzkaller", 0) = 3 [pid 14381] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14381] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14381] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14381] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14381] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14381] ioctl(4, LOOP_CLR_FD) = 0 [pid 14381] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14381] close(4) = 0 [pid 14381] close(3) = 0 [pid 14381] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14381] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14381] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14381] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14381] open("./bus", O_RDONLY) = 3 [pid 14381] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14381] exit_group(0) = ? [pid 14381] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14381, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14382 ./strace-static-x86_64: Process 14382 attached [pid 14382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14382] setpgid(0, 0) = 0 [pid 14382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14382] write(3, "1000", 4) = 4 [pid 14382] close(3) = 0 [pid 14382] memfd_create("syzkaller", 0) = 3 [pid 14382] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14382] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14382] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14382] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14382] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14382] ioctl(4, LOOP_CLR_FD) = 0 [pid 14382] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14382] close(4) = 0 [pid 14382] close(3) = 0 [pid 14382] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14382] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14382] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14382] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14382] open("./bus", O_RDONLY) = 3 [pid 14382] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14382] exit_group(0) = ? [pid 14382] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14382, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14383 ./strace-static-x86_64: Process 14383 attached [pid 14383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14383] setpgid(0, 0) = 0 [pid 14383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14383] write(3, "1000", 4) = 4 [pid 14383] close(3) = 0 [pid 14383] memfd_create("syzkaller", 0) = 3 [pid 14383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14383] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14383] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14383] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14383] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14383] ioctl(4, LOOP_CLR_FD) = 0 [pid 14383] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14383] close(4) = 0 [pid 14383] close(3) = 0 [pid 14383] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14383] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14383] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14383] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14383] open("./bus", O_RDONLY) = 3 [pid 14383] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14383] exit_group(0) = ? [pid 14383] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14383, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14384 ./strace-static-x86_64: Process 14384 attached [pid 14384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14384] setpgid(0, 0) = 0 [pid 14384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14384] write(3, "1000", 4) = 4 [pid 14384] close(3) = 0 [pid 14384] memfd_create("syzkaller", 0) = 3 [pid 14384] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14384] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14384] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14384] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14384] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14384] ioctl(4, LOOP_CLR_FD) = 0 [pid 14384] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14384] close(4) = 0 [pid 14384] close(3) = 0 [pid 14384] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14384] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14384] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14384] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14384] open("./bus", O_RDONLY) = 3 [pid 14384] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14384] exit_group(0) = ? [pid 14384] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14384, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14385 attached , child_tidptr=0x5555575235d0) = 14385 [pid 14385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14385] setpgid(0, 0) = 0 [pid 14385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14385] write(3, "1000", 4) = 4 [pid 14385] close(3) = 0 [pid 14385] memfd_create("syzkaller", 0) = 3 [pid 14385] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14385] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14385] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14385] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14385] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14385] ioctl(4, LOOP_CLR_FD) = 0 [pid 14385] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14385] close(4) = 0 [pid 14385] close(3) = 0 [pid 14385] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14385] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14385] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14385] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14385] open("./bus", O_RDONLY) = 3 [pid 14385] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14385] exit_group(0) = ? [pid 14385] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14385, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14386 attached , child_tidptr=0x5555575235d0) = 14386 [pid 14386] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14386] setpgid(0, 0) = 0 [pid 14386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14386] write(3, "1000", 4) = 4 [pid 14386] close(3) = 0 [pid 14386] memfd_create("syzkaller", 0) = 3 [pid 14386] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14386] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14386] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14386] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14386] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14386] ioctl(4, LOOP_CLR_FD) = 0 [pid 14386] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14386] close(4) = 0 [pid 14386] close(3) = 0 [pid 14386] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14386] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14386] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14386] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14386] open("./bus", O_RDONLY) = 3 [pid 14386] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14386] exit_group(0) = ? [pid 14386] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14386, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14387 ./strace-static-x86_64: Process 14387 attached [pid 14387] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14387] setpgid(0, 0) = 0 [pid 14387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14387] write(3, "1000", 4) = 4 [pid 14387] close(3) = 0 [pid 14387] memfd_create("syzkaller", 0) = 3 [pid 14387] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14387] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14387] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14387] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14387] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14387] ioctl(4, LOOP_CLR_FD) = 0 [pid 14387] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14387] close(4) = 0 [pid 14387] close(3) = 0 [pid 14387] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14387] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14387] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14387] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14387] open("./bus", O_RDONLY) = 3 [pid 14387] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14387] exit_group(0) = ? [pid 14387] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14387, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14388 ./strace-static-x86_64: Process 14388 attached [pid 14388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14388] setpgid(0, 0) = 0 [pid 14388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14388] write(3, "1000", 4) = 4 [pid 14388] close(3) = 0 [pid 14388] memfd_create("syzkaller", 0) = 3 [pid 14388] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14388] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14388] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14388] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14388] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14388] ioctl(4, LOOP_CLR_FD) = 0 [pid 14388] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14388] close(4) = 0 [pid 14388] close(3) = 0 [pid 14388] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14388] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14388] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14388] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14388] open("./bus", O_RDONLY) = 3 [pid 14388] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14388] exit_group(0) = ? [pid 14388] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14388, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14389 ./strace-static-x86_64: Process 14389 attached [pid 14389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14389] setpgid(0, 0) = 0 [pid 14389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14389] write(3, "1000", 4) = 4 [pid 14389] close(3) = 0 [pid 14389] memfd_create("syzkaller", 0) = 3 [pid 14389] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14389] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14389] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14389] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14389] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14389] ioctl(4, LOOP_CLR_FD) = 0 [pid 14389] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14389] close(4) = 0 [pid 14389] close(3) = 0 [pid 14389] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14389] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14389] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14389] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14389] open("./bus", O_RDONLY) = 3 [pid 14389] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14389] exit_group(0) = ? [pid 14389] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14389, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14390 ./strace-static-x86_64: Process 14390 attached [pid 14390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14390] setpgid(0, 0) = 0 [pid 14390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14390] write(3, "1000", 4) = 4 [pid 14390] close(3) = 0 [pid 14390] memfd_create("syzkaller", 0) = 3 [pid 14390] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14390] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14390] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14390] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14390] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14390] ioctl(4, LOOP_CLR_FD) = 0 [pid 14390] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14390] close(4) = 0 [pid 14390] close(3) = 0 [pid 14390] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14390] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14390] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14390] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14390] open("./bus", O_RDONLY) = 3 [pid 14390] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14390] exit_group(0) = ? [pid 14390] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14390, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14391 ./strace-static-x86_64: Process 14391 attached [pid 14391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14391] setpgid(0, 0) = 0 [pid 14391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14391] write(3, "1000", 4) = 4 [pid 14391] close(3) = 0 [pid 14391] memfd_create("syzkaller", 0) = 3 [pid 14391] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14391] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14391] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14391] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14391] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14391] ioctl(4, LOOP_CLR_FD) = 0 [pid 14391] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14391] close(4) = 0 [pid 14391] close(3) = 0 [pid 14391] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14391] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14391] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14391] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14391] open("./bus", O_RDONLY) = 3 [pid 14391] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14391] exit_group(0) = ? [pid 14391] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14391, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14392 ./strace-static-x86_64: Process 14392 attached [pid 14392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14392] setpgid(0, 0) = 0 [pid 14392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14392] write(3, "1000", 4) = 4 [pid 14392] close(3) = 0 [pid 14392] memfd_create("syzkaller", 0) = 3 [pid 14392] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14392] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14392] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14392] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14392] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14392] ioctl(4, LOOP_CLR_FD) = 0 [pid 14392] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14392] close(4) = 0 [pid 14392] close(3) = 0 [pid 14392] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14392] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14392] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14392] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14392] open("./bus", O_RDONLY) = 3 [pid 14392] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14392] exit_group(0) = ? [pid 14392] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14392, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14393 attached , child_tidptr=0x5555575235d0) = 14393 [pid 14393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14393] setpgid(0, 0) = 0 [pid 14393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14393] write(3, "1000", 4) = 4 [pid 14393] close(3) = 0 [pid 14393] memfd_create("syzkaller", 0) = 3 [pid 14393] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14393] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14393] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14393] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14393] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14393] ioctl(4, LOOP_CLR_FD) = 0 [pid 14393] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14393] close(4) = 0 [pid 14393] close(3) = 0 [pid 14393] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14393] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14393] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14393] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14393] open("./bus", O_RDONLY) = 3 [pid 14393] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14393] exit_group(0) = ? [pid 14393] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14393, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14394 attached , child_tidptr=0x5555575235d0) = 14394 [pid 14394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14394] setpgid(0, 0) = 0 [pid 14394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14394] write(3, "1000", 4) = 4 [pid 14394] close(3) = 0 [pid 14394] memfd_create("syzkaller", 0) = 3 [pid 14394] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14394] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14394] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14394] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14394] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14394] ioctl(4, LOOP_CLR_FD) = 0 [pid 14394] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14394] close(4) = 0 [pid 14394] close(3) = 0 [pid 14394] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14394] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14394] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14394] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14394] open("./bus", O_RDONLY) = 3 [pid 14394] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14394] exit_group(0) = ? [pid 14394] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14394, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14395 ./strace-static-x86_64: Process 14395 attached [pid 14395] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14395] setpgid(0, 0) = 0 [pid 14395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14395] write(3, "1000", 4) = 4 [pid 14395] close(3) = 0 [pid 14395] memfd_create("syzkaller", 0) = 3 [pid 14395] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14395] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14395] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14395] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14395] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14395] ioctl(4, LOOP_CLR_FD) = 0 [pid 14395] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14395] close(4) = 0 [pid 14395] close(3) = 0 [pid 14395] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14395] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14395] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14395] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14395] open("./bus", O_RDONLY) = 3 [pid 14395] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14395] exit_group(0) = ? [pid 14395] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14395, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14396 ./strace-static-x86_64: Process 14396 attached [pid 14396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14396] setpgid(0, 0) = 0 [pid 14396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14396] write(3, "1000", 4) = 4 [pid 14396] close(3) = 0 [pid 14396] memfd_create("syzkaller", 0) = 3 [pid 14396] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14396] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14396] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14396] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14396] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14396] ioctl(4, LOOP_CLR_FD) = 0 [pid 14396] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14396] close(4) = 0 [pid 14396] close(3) = 0 [pid 14396] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14396] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14396] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14396] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14396] open("./bus", O_RDONLY) = 3 [pid 14396] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14396] exit_group(0) = ? [pid 14396] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14396, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14397 ./strace-static-x86_64: Process 14397 attached [pid 14397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14397] setpgid(0, 0) = 0 [pid 14397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14397] write(3, "1000", 4) = 4 [pid 14397] close(3) = 0 [pid 14397] memfd_create("syzkaller", 0) = 3 [pid 14397] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14397] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14397] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14397] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14397] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14397] ioctl(4, LOOP_CLR_FD) = 0 [pid 14397] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14397] close(4) = 0 [pid 14397] close(3) = 0 [pid 14397] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14397] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14397] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14397] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14397] open("./bus", O_RDONLY) = 3 [pid 14397] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14397] exit_group(0) = ? [pid 14397] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14397, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14398 ./strace-static-x86_64: Process 14398 attached [pid 14398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14398] setpgid(0, 0) = 0 [pid 14398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14398] write(3, "1000", 4) = 4 [pid 14398] close(3) = 0 [pid 14398] memfd_create("syzkaller", 0) = 3 [pid 14398] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14398] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14398] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14398] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14398] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14398] ioctl(4, LOOP_CLR_FD) = 0 [pid 14398] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14398] close(4) = 0 [pid 14398] close(3) = 0 [pid 14398] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14398] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14398] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14398] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14398] open("./bus", O_RDONLY) = 3 [pid 14398] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14398] exit_group(0) = ? [pid 14398] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14398, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14399 attached , child_tidptr=0x5555575235d0) = 14399 [pid 14399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14399] setpgid(0, 0) = 0 [pid 14399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14399] write(3, "1000", 4) = 4 [pid 14399] close(3) = 0 [pid 14399] memfd_create("syzkaller", 0) = 3 [pid 14399] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14399] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14399] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14399] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14399] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14399] ioctl(4, LOOP_CLR_FD) = 0 [pid 14399] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14399] close(4) = 0 [pid 14399] close(3) = 0 [pid 14399] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14399] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14399] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14399] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14399] open("./bus", O_RDONLY) = 3 [pid 14399] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14399] exit_group(0) = ? [pid 14399] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14399, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14400 ./strace-static-x86_64: Process 14400 attached [pid 14400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14400] setpgid(0, 0) = 0 [pid 14400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14400] write(3, "1000", 4) = 4 [pid 14400] close(3) = 0 [pid 14400] memfd_create("syzkaller", 0) = 3 [pid 14400] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14400] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14400] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14400] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14400] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14400] ioctl(4, LOOP_CLR_FD) = 0 [pid 14400] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14400] close(4) = 0 [pid 14400] close(3) = 0 [pid 14400] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14400] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14400] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14400] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14400] open("./bus", O_RDONLY) = 3 [pid 14400] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14400] exit_group(0) = ? [pid 14400] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14400, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14401 attached , child_tidptr=0x5555575235d0) = 14401 [pid 14401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14401] setpgid(0, 0) = 0 [pid 14401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14401] write(3, "1000", 4) = 4 [pid 14401] close(3) = 0 [pid 14401] memfd_create("syzkaller", 0) = 3 [pid 14401] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14401] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14401] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14401] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14401] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14401] ioctl(4, LOOP_CLR_FD) = 0 [pid 14401] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14401] close(4) = 0 [pid 14401] close(3) = 0 [pid 14401] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14401] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14401] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14401] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14401] open("./bus", O_RDONLY) = 3 [pid 14401] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14401] exit_group(0) = ? [pid 14401] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14401, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14402 ./strace-static-x86_64: Process 14402 attached [pid 14402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14402] setpgid(0, 0) = 0 [pid 14402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14402] write(3, "1000", 4) = 4 [pid 14402] close(3) = 0 [pid 14402] memfd_create("syzkaller", 0) = 3 [pid 14402] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14402] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14402] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14402] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14402] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14402] ioctl(4, LOOP_CLR_FD) = 0 [pid 14402] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14402] close(4) = 0 [pid 14402] close(3) = 0 [pid 14402] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14402] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14402] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14402] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14402] open("./bus", O_RDONLY) = 3 [pid 14402] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14402] exit_group(0) = ? [pid 14402] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14402, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14403 attached , child_tidptr=0x5555575235d0) = 14403 [pid 14403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14403] setpgid(0, 0) = 0 [pid 14403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14403] write(3, "1000", 4) = 4 [pid 14403] close(3) = 0 [pid 14403] memfd_create("syzkaller", 0) = 3 [pid 14403] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14403] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14403] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14403] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14403] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14403] ioctl(4, LOOP_CLR_FD) = 0 [pid 14403] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14403] close(4) = 0 [pid 14403] close(3) = 0 [pid 14403] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14403] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14403] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14403] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14403] open("./bus", O_RDONLY) = 3 [pid 14403] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14403] exit_group(0) = ? [pid 14403] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14403, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14404 ./strace-static-x86_64: Process 14404 attached [pid 14404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14404] setpgid(0, 0) = 0 [pid 14404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14404] write(3, "1000", 4) = 4 [pid 14404] close(3) = 0 [pid 14404] memfd_create("syzkaller", 0) = 3 [pid 14404] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14404] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14404] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14404] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14404] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14404] ioctl(4, LOOP_CLR_FD) = 0 [pid 14404] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14404] close(4) = 0 [pid 14404] close(3) = 0 [pid 14404] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14404] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14404] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14404] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14404] open("./bus", O_RDONLY) = 3 [pid 14404] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14404] exit_group(0) = ? [pid 14404] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14404, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14405 ./strace-static-x86_64: Process 14405 attached [pid 14405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14405] setpgid(0, 0) = 0 [pid 14405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14405] write(3, "1000", 4) = 4 [pid 14405] close(3) = 0 [pid 14405] memfd_create("syzkaller", 0) = 3 [pid 14405] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14405] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14405] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14405] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14405] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14405] ioctl(4, LOOP_CLR_FD) = 0 [pid 14405] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14405] close(4) = 0 [pid 14405] close(3) = 0 [pid 14405] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14405] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14405] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14405] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14405] open("./bus", O_RDONLY) = 3 [pid 14405] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14405] exit_group(0) = ? [pid 14405] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14405, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14406 attached , child_tidptr=0x5555575235d0) = 14406 [pid 14406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14406] setpgid(0, 0) = 0 [pid 14406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14406] write(3, "1000", 4) = 4 [pid 14406] close(3) = 0 [pid 14406] memfd_create("syzkaller", 0) = 3 [pid 14406] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14406] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14406] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14406] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14406] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14406] ioctl(4, LOOP_CLR_FD) = 0 [pid 14406] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14406] close(4) = 0 [pid 14406] close(3) = 0 [pid 14406] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14406] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14406] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14406] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14406] open("./bus", O_RDONLY) = 3 [pid 14406] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14406] exit_group(0) = ? [pid 14406] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14406, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14407 attached , child_tidptr=0x5555575235d0) = 14407 [pid 14407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14407] setpgid(0, 0) = 0 [pid 14407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14407] write(3, "1000", 4) = 4 [pid 14407] close(3) = 0 [pid 14407] memfd_create("syzkaller", 0) = 3 [pid 14407] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14407] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14407] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14407] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14407] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14407] ioctl(4, LOOP_CLR_FD) = 0 [pid 14407] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14407] close(4) = 0 [pid 14407] close(3) = 0 [pid 14407] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14407] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14407] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14407] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14407] open("./bus", O_RDONLY) = 3 [pid 14407] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14407] exit_group(0) = ? [pid 14407] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14407, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14408 ./strace-static-x86_64: Process 14408 attached [pid 14408] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14408] setpgid(0, 0) = 0 [pid 14408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14408] write(3, "1000", 4) = 4 [pid 14408] close(3) = 0 [pid 14408] memfd_create("syzkaller", 0) = 3 [pid 14408] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14408] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14408] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14408] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14408] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14408] ioctl(4, LOOP_CLR_FD) = 0 [pid 14408] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14408] close(4) = 0 [pid 14408] close(3) = 0 [pid 14408] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14408] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14408] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14408] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14408] open("./bus", O_RDONLY) = 3 [pid 14408] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14408] exit_group(0) = ? [pid 14408] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14408, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14409 ./strace-static-x86_64: Process 14409 attached [pid 14409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14409] setpgid(0, 0) = 0 [pid 14409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14409] write(3, "1000", 4) = 4 [pid 14409] close(3) = 0 [pid 14409] memfd_create("syzkaller", 0) = 3 [pid 14409] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14409] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14409] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14409] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14409] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14409] ioctl(4, LOOP_CLR_FD) = 0 [pid 14409] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14409] close(4) = 0 [pid 14409] close(3) = 0 [pid 14409] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14409] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14409] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14409] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14409] open("./bus", O_RDONLY) = 3 [pid 14409] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14409] exit_group(0) = ? [pid 14409] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14409, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14410 ./strace-static-x86_64: Process 14410 attached [pid 14410] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14410] setpgid(0, 0) = 0 [pid 14410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14410] write(3, "1000", 4) = 4 [pid 14410] close(3) = 0 [pid 14410] memfd_create("syzkaller", 0) = 3 [pid 14410] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14410] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14410] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14410] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14410] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14410] ioctl(4, LOOP_CLR_FD) = 0 [pid 14410] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14410] close(4) = 0 [pid 14410] close(3) = 0 [pid 14410] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14410] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14410] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14410] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14410] open("./bus", O_RDONLY) = 3 [pid 14410] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14410] exit_group(0) = ? [pid 14410] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14410, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14411 ./strace-static-x86_64: Process 14411 attached [pid 14411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14411] setpgid(0, 0) = 0 [pid 14411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14411] write(3, "1000", 4) = 4 [pid 14411] close(3) = 0 [pid 14411] memfd_create("syzkaller", 0) = 3 [pid 14411] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14411] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14411] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14411] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14411] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14411] ioctl(4, LOOP_CLR_FD) = 0 [pid 14411] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14411] close(4) = 0 [pid 14411] close(3) = 0 [pid 14411] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14411] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14411] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14411] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14411] open("./bus", O_RDONLY) = 3 [pid 14411] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14411] exit_group(0) = ? [pid 14411] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14411, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14412 attached , child_tidptr=0x5555575235d0) = 14412 [pid 14412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14412] setpgid(0, 0) = 0 [pid 14412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14412] write(3, "1000", 4) = 4 [pid 14412] close(3) = 0 [pid 14412] memfd_create("syzkaller", 0) = 3 [pid 14412] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14412] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14412] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14412] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14412] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14412] ioctl(4, LOOP_CLR_FD) = 0 [pid 14412] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14412] close(4) = 0 [pid 14412] close(3) = 0 [pid 14412] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14412] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14412] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14412] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14412] open("./bus", O_RDONLY) = 3 [pid 14412] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14412] exit_group(0) = ? [pid 14412] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14412, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14413 attached , child_tidptr=0x5555575235d0) = 14413 [pid 14413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14413] setpgid(0, 0) = 0 [pid 14413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14413] write(3, "1000", 4) = 4 [pid 14413] close(3) = 0 [pid 14413] memfd_create("syzkaller", 0) = 3 [pid 14413] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14413] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14413] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14413] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14413] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14413] ioctl(4, LOOP_CLR_FD) = 0 [pid 14413] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14413] close(4) = 0 [pid 14413] close(3) = 0 [pid 14413] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14413] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14413] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14413] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14413] open("./bus", O_RDONLY) = 3 [pid 14413] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14413] exit_group(0) = ? [pid 14413] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14413, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14414 ./strace-static-x86_64: Process 14414 attached [pid 14414] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14414] setpgid(0, 0) = 0 [pid 14414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14414] write(3, "1000", 4) = 4 [pid 14414] close(3) = 0 [pid 14414] memfd_create("syzkaller", 0) = 3 [pid 14414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14414] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14414] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14414] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14414] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14414] ioctl(4, LOOP_CLR_FD) = 0 [pid 14414] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14414] close(4) = 0 [pid 14414] close(3) = 0 [pid 14414] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14414] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14414] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14414] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14414] open("./bus", O_RDONLY) = 3 [pid 14414] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14414] exit_group(0) = ? [pid 14414] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14414, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14415 ./strace-static-x86_64: Process 14415 attached [pid 14415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14415] setpgid(0, 0) = 0 [pid 14415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14415] write(3, "1000", 4) = 4 [pid 14415] close(3) = 0 [pid 14415] memfd_create("syzkaller", 0) = 3 [pid 14415] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14415] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14415] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14415] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14415] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14415] ioctl(4, LOOP_CLR_FD) = 0 [pid 14415] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14415] close(4) = 0 [pid 14415] close(3) = 0 [pid 14415] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14415] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14415] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14415] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14415] open("./bus", O_RDONLY) = 3 [pid 14415] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14415] exit_group(0) = ? [pid 14415] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14415, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14416 ./strace-static-x86_64: Process 14416 attached [pid 14416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14416] setpgid(0, 0) = 0 [pid 14416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14416] write(3, "1000", 4) = 4 [pid 14416] close(3) = 0 [pid 14416] memfd_create("syzkaller", 0) = 3 [pid 14416] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14416] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14416] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14416] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14416] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14416] ioctl(4, LOOP_CLR_FD) = 0 [pid 14416] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14416] close(4) = 0 [pid 14416] close(3) = 0 [pid 14416] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14416] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14416] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14416] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14416] open("./bus", O_RDONLY) = 3 [pid 14416] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14416] exit_group(0) = ? [pid 14416] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14416, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14417 ./strace-static-x86_64: Process 14417 attached [pid 14417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14417] setpgid(0, 0) = 0 [pid 14417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14417] write(3, "1000", 4) = 4 [pid 14417] close(3) = 0 [pid 14417] memfd_create("syzkaller", 0) = 3 [pid 14417] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14417] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14417] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14417] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14417] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14417] ioctl(4, LOOP_CLR_FD) = 0 [pid 14417] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14417] close(4) = 0 [pid 14417] close(3) = 0 [pid 14417] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14417] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14417] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14417] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14417] open("./bus", O_RDONLY) = 3 [pid 14417] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14417] exit_group(0) = ? [pid 14417] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14417, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14418 ./strace-static-x86_64: Process 14418 attached [pid 14418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14418] setpgid(0, 0) = 0 [pid 14418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14418] write(3, "1000", 4) = 4 [pid 14418] close(3) = 0 [pid 14418] memfd_create("syzkaller", 0) = 3 [pid 14418] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14418] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14418] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14418] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14418] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14418] ioctl(4, LOOP_CLR_FD) = 0 [pid 14418] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14418] close(4) = 0 [pid 14418] close(3) = 0 [pid 14418] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14418] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14418] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14418] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14418] open("./bus", O_RDONLY) = 3 [pid 14418] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14418] exit_group(0) = ? [pid 14418] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14418, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14419 ./strace-static-x86_64: Process 14419 attached [pid 14419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14419] setpgid(0, 0) = 0 [pid 14419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14419] write(3, "1000", 4) = 4 [pid 14419] close(3) = 0 [pid 14419] memfd_create("syzkaller", 0) = 3 [pid 14419] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14419] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14419] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14419] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14419] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14419] ioctl(4, LOOP_CLR_FD) = 0 [pid 14419] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14419] close(4) = 0 [pid 14419] close(3) = 0 [pid 14419] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14419] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14419] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14419] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14419] open("./bus", O_RDONLY) = 3 [pid 14419] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14419] exit_group(0) = ? [pid 14419] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14419, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14420 ./strace-static-x86_64: Process 14420 attached [pid 14420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14420] setpgid(0, 0) = 0 [pid 14420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14420] write(3, "1000", 4) = 4 [pid 14420] close(3) = 0 [pid 14420] memfd_create("syzkaller", 0) = 3 [pid 14420] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14420] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14420] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14420] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14420] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14420] ioctl(4, LOOP_CLR_FD) = 0 [pid 14420] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14420] close(4) = 0 [pid 14420] close(3) = 0 [pid 14420] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14420] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14420] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14420] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14420] open("./bus", O_RDONLY) = 3 [pid 14420] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14420] exit_group(0) = ? [pid 14420] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14420, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14421 attached , child_tidptr=0x5555575235d0) = 14421 [pid 14421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14421] setpgid(0, 0) = 0 [pid 14421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14421] write(3, "1000", 4) = 4 [pid 14421] close(3) = 0 [pid 14421] memfd_create("syzkaller", 0) = 3 [pid 14421] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14421] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14421] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14421] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14421] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14421] ioctl(4, LOOP_CLR_FD) = 0 [pid 14421] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14421] close(4) = 0 [pid 14421] close(3) = 0 [pid 14421] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14421] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14421] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14421] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14421] open("./bus", O_RDONLY) = 3 [pid 14421] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14421] exit_group(0) = ? [pid 14421] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14421, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14422 ./strace-static-x86_64: Process 14422 attached [pid 14422] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14422] setpgid(0, 0) = 0 [pid 14422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14422] write(3, "1000", 4) = 4 [pid 14422] close(3) = 0 [pid 14422] memfd_create("syzkaller", 0) = 3 [pid 14422] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14422] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14422] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14422] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14422] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14422] ioctl(4, LOOP_CLR_FD) = 0 [pid 14422] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14422] close(4) = 0 [pid 14422] close(3) = 0 [pid 14422] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14422] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14422] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14422] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14422] open("./bus", O_RDONLY) = 3 [pid 14422] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14422] exit_group(0) = ? [pid 14422] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14422, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14423 ./strace-static-x86_64: Process 14423 attached [pid 14423] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14423] setpgid(0, 0) = 0 [pid 14423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14423] write(3, "1000", 4) = 4 [pid 14423] close(3) = 0 [pid 14423] memfd_create("syzkaller", 0) = 3 [pid 14423] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14423] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14423] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14423] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14423] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14423] ioctl(4, LOOP_CLR_FD) = 0 [pid 14423] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14423] close(4) = 0 [pid 14423] close(3) = 0 [pid 14423] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14423] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14423] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14423] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14423] open("./bus", O_RDONLY) = 3 [pid 14423] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14423] exit_group(0) = ? [pid 14423] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14423, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14424 attached , child_tidptr=0x5555575235d0) = 14424 [pid 14424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14424] setpgid(0, 0) = 0 [pid 14424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14424] write(3, "1000", 4) = 4 [pid 14424] close(3) = 0 [pid 14424] memfd_create("syzkaller", 0) = 3 [pid 14424] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14424] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14424] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14424] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14424] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14424] ioctl(4, LOOP_CLR_FD) = 0 [pid 14424] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14424] close(4) = 0 [pid 14424] close(3) = 0 [pid 14424] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14424] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14424] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14424] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14424] open("./bus", O_RDONLY) = 3 [pid 14424] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14424] exit_group(0) = ? [pid 14424] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14424, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14425 ./strace-static-x86_64: Process 14425 attached [pid 14425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14425] setpgid(0, 0) = 0 [pid 14425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14425] write(3, "1000", 4) = 4 [pid 14425] close(3) = 0 [pid 14425] memfd_create("syzkaller", 0) = 3 [pid 14425] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14425] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14425] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14425] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14425] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14425] ioctl(4, LOOP_CLR_FD) = 0 [pid 14425] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14425] close(4) = 0 [pid 14425] close(3) = 0 [pid 14425] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14425] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14425] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14425] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14425] open("./bus", O_RDONLY) = 3 [pid 14425] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14425] exit_group(0) = ? [pid 14425] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14425, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14426 attached , child_tidptr=0x5555575235d0) = 14426 [pid 14426] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14426] setpgid(0, 0) = 0 [pid 14426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14426] write(3, "1000", 4) = 4 [pid 14426] close(3) = 0 [pid 14426] memfd_create("syzkaller", 0) = 3 [pid 14426] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14426] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14426] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14426] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14426] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14426] ioctl(4, LOOP_CLR_FD) = 0 [pid 14426] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14426] close(4) = 0 [pid 14426] close(3) = 0 [pid 14426] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14426] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14426] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14426] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14426] open("./bus", O_RDONLY) = 3 [pid 14426] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14426] exit_group(0) = ? [pid 14426] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14426, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14427 ./strace-static-x86_64: Process 14427 attached [pid 14427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14427] setpgid(0, 0) = 0 [pid 14427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14427] write(3, "1000", 4) = 4 [pid 14427] close(3) = 0 [pid 14427] memfd_create("syzkaller", 0) = 3 [pid 14427] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14427] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14427] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14427] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14427] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14427] ioctl(4, LOOP_CLR_FD) = 0 [pid 14427] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14427] close(4) = 0 [pid 14427] close(3) = 0 [pid 14427] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14427] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14427] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14427] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14427] open("./bus", O_RDONLY) = 3 [pid 14427] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14427] exit_group(0) = ? [pid 14427] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14427, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14428 ./strace-static-x86_64: Process 14428 attached [pid 14428] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14428] setpgid(0, 0) = 0 [pid 14428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14428] write(3, "1000", 4) = 4 [pid 14428] close(3) = 0 [pid 14428] memfd_create("syzkaller", 0) = 3 [pid 14428] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14428] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14428] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14428] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14428] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14428] ioctl(4, LOOP_CLR_FD) = 0 [pid 14428] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14428] close(4) = 0 [pid 14428] close(3) = 0 [pid 14428] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14428] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14428] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14428] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14428] open("./bus", O_RDONLY) = 3 [pid 14428] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14428] exit_group(0) = ? [pid 14428] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14428, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14429 ./strace-static-x86_64: Process 14429 attached [pid 14429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14429] setpgid(0, 0) = 0 [pid 14429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14429] write(3, "1000", 4) = 4 [pid 14429] close(3) = 0 [pid 14429] memfd_create("syzkaller", 0) = 3 [pid 14429] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14429] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14429] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14429] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14429] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14429] ioctl(4, LOOP_CLR_FD) = 0 [pid 14429] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14429] close(4) = 0 [pid 14429] close(3) = 0 [pid 14429] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14429] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14429] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14429] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14429] open("./bus", O_RDONLY) = 3 [pid 14429] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14429] exit_group(0) = ? [pid 14429] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14429, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14430 ./strace-static-x86_64: Process 14430 attached [pid 14430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14430] setpgid(0, 0) = 0 [pid 14430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14430] write(3, "1000", 4) = 4 [pid 14430] close(3) = 0 [pid 14430] memfd_create("syzkaller", 0) = 3 [pid 14430] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14430] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14430] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14430] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14430] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14430] ioctl(4, LOOP_CLR_FD) = 0 [pid 14430] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14430] close(4) = 0 [pid 14430] close(3) = 0 [pid 14430] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14430] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14430] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14430] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14430] open("./bus", O_RDONLY) = 3 [pid 14430] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14430] exit_group(0) = ? [pid 14430] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14430, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14431 attached , child_tidptr=0x5555575235d0) = 14431 [pid 14431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14431] setpgid(0, 0) = 0 [pid 14431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14431] write(3, "1000", 4) = 4 [pid 14431] close(3) = 0 [pid 14431] memfd_create("syzkaller", 0) = 3 [pid 14431] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14431] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14431] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14431] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14431] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14431] ioctl(4, LOOP_CLR_FD) = 0 [pid 14431] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14431] close(4) = 0 [pid 14431] close(3) = 0 [pid 14431] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14431] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14431] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14431] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14431] open("./bus", O_RDONLY) = 3 [pid 14431] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14431] exit_group(0) = ? [pid 14431] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14431, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14432 attached , child_tidptr=0x5555575235d0) = 14432 [pid 14432] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14432] setpgid(0, 0) = 0 [pid 14432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14432] write(3, "1000", 4) = 4 [pid 14432] close(3) = 0 [pid 14432] memfd_create("syzkaller", 0) = 3 [pid 14432] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14432] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14432] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14432] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14432] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14432] ioctl(4, LOOP_CLR_FD) = 0 [pid 14432] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14432] close(4) = 0 [pid 14432] close(3) = 0 [pid 14432] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14432] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14432] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14432] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14432] open("./bus", O_RDONLY) = 3 [pid 14432] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14432] exit_group(0) = ? [pid 14432] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14432, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14433 ./strace-static-x86_64: Process 14433 attached [pid 14433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14433] setpgid(0, 0) = 0 [pid 14433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14433] write(3, "1000", 4) = 4 [pid 14433] close(3) = 0 [pid 14433] memfd_create("syzkaller", 0) = 3 [pid 14433] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14433] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14433] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14433] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14433] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14433] ioctl(4, LOOP_CLR_FD) = 0 [pid 14433] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14433] close(4) = 0 [pid 14433] close(3) = 0 [pid 14433] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14433] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14433] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14433] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14433] open("./bus", O_RDONLY) = 3 [pid 14433] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14433] exit_group(0) = ? [pid 14433] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14433, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14434 ./strace-static-x86_64: Process 14434 attached [pid 14434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14434] setpgid(0, 0) = 0 [pid 14434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14434] write(3, "1000", 4) = 4 [pid 14434] close(3) = 0 [pid 14434] memfd_create("syzkaller", 0) = 3 [pid 14434] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14434] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14434] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14434] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14434] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14434] ioctl(4, LOOP_CLR_FD) = 0 [pid 14434] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14434] close(4) = 0 [pid 14434] close(3) = 0 [pid 14434] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14434] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14434] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14434] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14434] open("./bus", O_RDONLY) = 3 [pid 14434] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14434] exit_group(0) = ? [pid 14434] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14434, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14435 ./strace-static-x86_64: Process 14435 attached [pid 14435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14435] setpgid(0, 0) = 0 [pid 14435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14435] write(3, "1000", 4) = 4 [pid 14435] close(3) = 0 [pid 14435] memfd_create("syzkaller", 0) = 3 [pid 14435] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14435] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14435] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14435] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14435] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14435] ioctl(4, LOOP_CLR_FD) = 0 [pid 14435] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14435] close(4) = 0 [pid 14435] close(3) = 0 [pid 14435] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14435] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14435] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14435] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14435] open("./bus", O_RDONLY) = 3 [pid 14435] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14435] exit_group(0) = ? [pid 14435] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14435, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14436 ./strace-static-x86_64: Process 14436 attached [pid 14436] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14436] setpgid(0, 0) = 0 [pid 14436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14436] write(3, "1000", 4) = 4 [pid 14436] close(3) = 0 [pid 14436] memfd_create("syzkaller", 0) = 3 [pid 14436] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14436] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14436] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14436] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14436] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14436] ioctl(4, LOOP_CLR_FD) = 0 [pid 14436] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14436] close(4) = 0 [pid 14436] close(3) = 0 [pid 14436] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14436] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14436] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14436] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14436] open("./bus", O_RDONLY) = 3 [pid 14436] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14436] exit_group(0) = ? [pid 14436] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14436, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14437 ./strace-static-x86_64: Process 14437 attached [pid 14437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14437] setpgid(0, 0) = 0 [pid 14437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14437] write(3, "1000", 4) = 4 [pid 14437] close(3) = 0 [pid 14437] memfd_create("syzkaller", 0) = 3 [pid 14437] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14437] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14437] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14437] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14437] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14437] ioctl(4, LOOP_CLR_FD) = 0 [pid 14437] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14437] close(4) = 0 [pid 14437] close(3) = 0 [pid 14437] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14437] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14437] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14437] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14437] open("./bus", O_RDONLY) = 3 [pid 14437] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14437] exit_group(0) = ? [pid 14437] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14437, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14438 ./strace-static-x86_64: Process 14438 attached [pid 14438] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14438] setpgid(0, 0) = 0 [pid 14438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14438] write(3, "1000", 4) = 4 [pid 14438] close(3) = 0 [pid 14438] memfd_create("syzkaller", 0) = 3 [pid 14438] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14438] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14438] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14438] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14438] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14438] ioctl(4, LOOP_CLR_FD) = 0 [pid 14438] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14438] close(4) = 0 [pid 14438] close(3) = 0 [pid 14438] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14438] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14438] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14438] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14438] open("./bus", O_RDONLY) = 3 [pid 14438] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14438] exit_group(0) = ? [pid 14438] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14438, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14439 attached , child_tidptr=0x5555575235d0) = 14439 [pid 14439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14439] setpgid(0, 0) = 0 [pid 14439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14439] write(3, "1000", 4) = 4 [pid 14439] close(3) = 0 [pid 14439] memfd_create("syzkaller", 0) = 3 [pid 14439] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14439] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14439] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14439] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14439] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14439] ioctl(4, LOOP_CLR_FD) = 0 [pid 14439] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14439] close(4) = 0 [pid 14439] close(3) = 0 [pid 14439] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14439] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14439] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14439] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14439] open("./bus", O_RDONLY) = 3 [pid 14439] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14439] exit_group(0) = ? [pid 14439] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14439, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14440 ./strace-static-x86_64: Process 14440 attached [pid 14440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14440] setpgid(0, 0) = 0 [pid 14440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14440] write(3, "1000", 4) = 4 [pid 14440] close(3) = 0 [pid 14440] memfd_create("syzkaller", 0) = 3 [pid 14440] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14440] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14440] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14440] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14440] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14440] ioctl(4, LOOP_CLR_FD) = 0 [pid 14440] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14440] close(4) = 0 [pid 14440] close(3) = 0 [pid 14440] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14440] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14440] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14440] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14440] open("./bus", O_RDONLY) = 3 [pid 14440] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14440] exit_group(0) = ? [pid 14440] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14440, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14441 ./strace-static-x86_64: Process 14441 attached [pid 14441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14441] setpgid(0, 0) = 0 [pid 14441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14441] write(3, "1000", 4) = 4 [pid 14441] close(3) = 0 [pid 14441] memfd_create("syzkaller", 0) = 3 [pid 14441] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14441] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14441] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14441] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14441] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14441] ioctl(4, LOOP_CLR_FD) = 0 [pid 14441] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14441] close(4) = 0 [pid 14441] close(3) = 0 [pid 14441] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14441] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14441] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14441] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14441] open("./bus", O_RDONLY) = 3 [pid 14441] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14441] exit_group(0) = ? [pid 14441] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14441, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14442 attached , child_tidptr=0x5555575235d0) = 14442 [pid 14442] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14442] setpgid(0, 0) = 0 [pid 14442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14442] write(3, "1000", 4) = 4 [pid 14442] close(3) = 0 [pid 14442] memfd_create("syzkaller", 0) = 3 [pid 14442] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14442] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14442] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14442] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14442] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14442] ioctl(4, LOOP_CLR_FD) = 0 [pid 14442] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14442] close(4) = 0 [pid 14442] close(3) = 0 [pid 14442] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14442] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14442] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14442] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14442] open("./bus", O_RDONLY) = 3 [pid 14442] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14442] exit_group(0) = ? [pid 14442] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14442, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14443 attached , child_tidptr=0x5555575235d0) = 14443 [pid 14443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14443] setpgid(0, 0) = 0 [pid 14443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14443] write(3, "1000", 4) = 4 [pid 14443] close(3) = 0 [pid 14443] memfd_create("syzkaller", 0) = 3 [pid 14443] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14443] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14443] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14443] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14443] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14443] ioctl(4, LOOP_CLR_FD) = 0 [pid 14443] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14443] close(4) = 0 [pid 14443] close(3) = 0 [pid 14443] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14443] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14443] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14443] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14443] open("./bus", O_RDONLY) = 3 [pid 14443] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14443] exit_group(0) = ? [pid 14443] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14443, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14444 ./strace-static-x86_64: Process 14444 attached [pid 14444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14444] setpgid(0, 0) = 0 [pid 14444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14444] write(3, "1000", 4) = 4 [pid 14444] close(3) = 0 [pid 14444] memfd_create("syzkaller", 0) = 3 [pid 14444] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14444] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14444] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14444] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14444] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14444] ioctl(4, LOOP_CLR_FD) = 0 [pid 14444] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14444] close(4) = 0 [pid 14444] close(3) = 0 [pid 14444] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14444] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14444] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14444] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14444] open("./bus", O_RDONLY) = 3 [pid 14444] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14444] exit_group(0) = ? [pid 14444] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14444, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14445 ./strace-static-x86_64: Process 14445 attached [pid 14445] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14445] setpgid(0, 0) = 0 [pid 14445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14445] write(3, "1000", 4) = 4 [pid 14445] close(3) = 0 [pid 14445] memfd_create("syzkaller", 0) = 3 [pid 14445] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14445] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14445] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14445] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14445] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14445] ioctl(4, LOOP_CLR_FD) = 0 [pid 14445] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14445] close(4) = 0 [pid 14445] close(3) = 0 [pid 14445] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14445] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14445] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14445] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14445] open("./bus", O_RDONLY) = 3 [pid 14445] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14445] exit_group(0) = ? [pid 14445] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14445, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14446 attached , child_tidptr=0x5555575235d0) = 14446 [pid 14446] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14446] setpgid(0, 0) = 0 [pid 14446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14446] write(3, "1000", 4) = 4 [pid 14446] close(3) = 0 [pid 14446] memfd_create("syzkaller", 0) = 3 [pid 14446] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14446] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14446] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14446] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14446] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14446] ioctl(4, LOOP_CLR_FD) = 0 [pid 14446] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14446] close(4) = 0 [pid 14446] close(3) = 0 [pid 14446] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14446] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14446] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14446] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14446] open("./bus", O_RDONLY) = 3 [pid 14446] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14446] exit_group(0) = ? [pid 14446] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14446, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14447 attached , child_tidptr=0x5555575235d0) = 14447 [pid 14447] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14447] setpgid(0, 0) = 0 [pid 14447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14447] write(3, "1000", 4) = 4 [pid 14447] close(3) = 0 [pid 14447] memfd_create("syzkaller", 0) = 3 [pid 14447] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14447] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14447] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14447] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14447] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14447] ioctl(4, LOOP_CLR_FD) = 0 [pid 14447] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14447] close(4) = 0 [pid 14447] close(3) = 0 [pid 14447] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14447] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14447] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14447] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14447] open("./bus", O_RDONLY) = 3 [pid 14447] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14447] exit_group(0) = ? [pid 14447] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14447, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14448 ./strace-static-x86_64: Process 14448 attached [pid 14448] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14448] setpgid(0, 0) = 0 [pid 14448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14448] write(3, "1000", 4) = 4 [pid 14448] close(3) = 0 [pid 14448] memfd_create("syzkaller", 0) = 3 [pid 14448] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14448] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14448] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14448] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14448] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14448] ioctl(4, LOOP_CLR_FD) = 0 [pid 14448] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14448] close(4) = 0 [pid 14448] close(3) = 0 [pid 14448] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14448] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14448] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14448] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14448] open("./bus", O_RDONLY) = 3 [pid 14448] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14448] exit_group(0) = ? [pid 14448] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14448, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14449 ./strace-static-x86_64: Process 14449 attached [pid 14449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14449] setpgid(0, 0) = 0 [pid 14449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14449] write(3, "1000", 4) = 4 [pid 14449] close(3) = 0 [pid 14449] memfd_create("syzkaller", 0) = 3 [pid 14449] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14449] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14449] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14449] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14449] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14449] ioctl(4, LOOP_CLR_FD) = 0 [pid 14449] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14449] close(4) = 0 [pid 14449] close(3) = 0 [pid 14449] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14449] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14449] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14449] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14449] open("./bus", O_RDONLY) = 3 [pid 14449] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14449] exit_group(0) = ? [pid 14449] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14449, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14450 ./strace-static-x86_64: Process 14450 attached [pid 14450] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14450] setpgid(0, 0) = 0 [pid 14450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14450] write(3, "1000", 4) = 4 [pid 14450] close(3) = 0 [pid 14450] memfd_create("syzkaller", 0) = 3 [pid 14450] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14450] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14450] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14450] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14450] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14450] ioctl(4, LOOP_CLR_FD) = 0 [pid 14450] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14450] close(4) = 0 [pid 14450] close(3) = 0 [pid 14450] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14450] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14450] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14450] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14450] open("./bus", O_RDONLY) = 3 [pid 14450] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14450] exit_group(0) = ? [pid 14450] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14450, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14451 ./strace-static-x86_64: Process 14451 attached [pid 14451] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14451] setpgid(0, 0) = 0 [pid 14451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14451] write(3, "1000", 4) = 4 [pid 14451] close(3) = 0 [pid 14451] memfd_create("syzkaller", 0) = 3 [pid 14451] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14451] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14451] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14451] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14451] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14451] ioctl(4, LOOP_CLR_FD) = 0 [pid 14451] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14451] close(4) = 0 [pid 14451] close(3) = 0 [pid 14451] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14451] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14451] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14451] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14451] open("./bus", O_RDONLY) = 3 [pid 14451] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14451] exit_group(0) = ? [pid 14451] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14451, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14452 ./strace-static-x86_64: Process 14452 attached [pid 14452] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14452] setpgid(0, 0) = 0 [pid 14452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14452] write(3, "1000", 4) = 4 [pid 14452] close(3) = 0 [pid 14452] memfd_create("syzkaller", 0) = 3 [pid 14452] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14452] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14452] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14452] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14452] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14452] ioctl(4, LOOP_CLR_FD) = 0 [pid 14452] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14452] close(4) = 0 [pid 14452] close(3) = 0 [pid 14452] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14452] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14452] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14452] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14452] open("./bus", O_RDONLY) = 3 [pid 14452] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14452] exit_group(0) = ? [pid 14452] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14452, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14453 ./strace-static-x86_64: Process 14453 attached [pid 14453] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14453] setpgid(0, 0) = 0 [pid 14453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14453] write(3, "1000", 4) = 4 [pid 14453] close(3) = 0 [pid 14453] memfd_create("syzkaller", 0) = 3 [pid 14453] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14453] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14453] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14453] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14453] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14453] ioctl(4, LOOP_CLR_FD) = 0 [pid 14453] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14453] close(4) = 0 [pid 14453] close(3) = 0 [pid 14453] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14453] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14453] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14453] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14453] open("./bus", O_RDONLY) = 3 [pid 14453] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14453] exit_group(0) = ? [pid 14453] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14453, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14454 ./strace-static-x86_64: Process 14454 attached [pid 14454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14454] setpgid(0, 0) = 0 [pid 14454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14454] write(3, "1000", 4) = 4 [pid 14454] close(3) = 0 [pid 14454] memfd_create("syzkaller", 0) = 3 [pid 14454] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14454] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14454] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14454] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14454] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14454] ioctl(4, LOOP_CLR_FD) = 0 [pid 14454] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14454] close(4) = 0 [pid 14454] close(3) = 0 [pid 14454] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14454] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14454] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14454] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14454] open("./bus", O_RDONLY) = 3 [pid 14454] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14454] exit_group(0) = ? [pid 14454] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14454, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14455 ./strace-static-x86_64: Process 14455 attached [pid 14455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14455] setpgid(0, 0) = 0 [pid 14455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14455] write(3, "1000", 4) = 4 [pid 14455] close(3) = 0 [pid 14455] memfd_create("syzkaller", 0) = 3 [pid 14455] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14455] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14455] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14455] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14455] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14455] ioctl(4, LOOP_CLR_FD) = 0 [pid 14455] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14455] close(4) = 0 [pid 14455] close(3) = 0 [pid 14455] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14455] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14455] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14455] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14455] open("./bus", O_RDONLY) = 3 [pid 14455] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14455] exit_group(0) = ? [pid 14455] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14455, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14456 ./strace-static-x86_64: Process 14456 attached [pid 14456] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14456] setpgid(0, 0) = 0 [pid 14456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14456] write(3, "1000", 4) = 4 [pid 14456] close(3) = 0 [pid 14456] memfd_create("syzkaller", 0) = 3 [pid 14456] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14456] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14456] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14456] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14456] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14456] ioctl(4, LOOP_CLR_FD) = 0 [pid 14456] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14456] close(4) = 0 [pid 14456] close(3) = 0 [pid 14456] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14456] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14456] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14456] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14456] open("./bus", O_RDONLY) = 3 [pid 14456] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14456] exit_group(0) = ? [pid 14456] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14456, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14457 ./strace-static-x86_64: Process 14457 attached [pid 14457] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14457] setpgid(0, 0) = 0 [pid 14457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14457] write(3, "1000", 4) = 4 [pid 14457] close(3) = 0 [pid 14457] memfd_create("syzkaller", 0) = 3 [pid 14457] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14457] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14457] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14457] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14457] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14457] ioctl(4, LOOP_CLR_FD) = 0 [pid 14457] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14457] close(4) = 0 [pid 14457] close(3) = 0 [pid 14457] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14457] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14457] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14457] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14457] open("./bus", O_RDONLY) = 3 [pid 14457] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14457] exit_group(0) = ? [pid 14457] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14457, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14458 ./strace-static-x86_64: Process 14458 attached [pid 14458] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14458] setpgid(0, 0) = 0 [pid 14458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14458] write(3, "1000", 4) = 4 [pid 14458] close(3) = 0 [pid 14458] memfd_create("syzkaller", 0) = 3 [pid 14458] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14458] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14458] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14458] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14458] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14458] ioctl(4, LOOP_CLR_FD) = 0 [pid 14458] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14458] close(4) = 0 [pid 14458] close(3) = 0 [pid 14458] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14458] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14458] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14458] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14458] open("./bus", O_RDONLY) = 3 [pid 14458] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14458] exit_group(0) = ? [pid 14458] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14458, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14459 ./strace-static-x86_64: Process 14459 attached [pid 14459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14459] setpgid(0, 0) = 0 [pid 14459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14459] write(3, "1000", 4) = 4 [pid 14459] close(3) = 0 [pid 14459] memfd_create("syzkaller", 0) = 3 [pid 14459] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14459] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14459] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14459] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14459] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14459] ioctl(4, LOOP_CLR_FD) = 0 [pid 14459] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14459] close(4) = 0 [pid 14459] close(3) = 0 [pid 14459] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14459] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14459] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14459] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14459] open("./bus", O_RDONLY) = 3 [pid 14459] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14459] exit_group(0) = ? [pid 14459] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14459, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14460 ./strace-static-x86_64: Process 14460 attached [pid 14460] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14460] setpgid(0, 0) = 0 [pid 14460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14460] write(3, "1000", 4) = 4 [pid 14460] close(3) = 0 [pid 14460] memfd_create("syzkaller", 0) = 3 [pid 14460] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14460] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14460] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14460] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14460] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14460] ioctl(4, LOOP_CLR_FD) = 0 [pid 14460] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14460] close(4) = 0 [pid 14460] close(3) = 0 [pid 14460] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14460] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14460] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14460] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14460] open("./bus", O_RDONLY) = 3 [pid 14460] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14460] exit_group(0) = ? [pid 14460] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14460, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14461 attached , child_tidptr=0x5555575235d0) = 14461 [pid 14461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14461] setpgid(0, 0) = 0 [pid 14461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14461] write(3, "1000", 4) = 4 [pid 14461] close(3) = 0 [pid 14461] memfd_create("syzkaller", 0) = 3 [pid 14461] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14461] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14461] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14461] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14461] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14461] ioctl(4, LOOP_CLR_FD) = 0 [pid 14461] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14461] close(4) = 0 [pid 14461] close(3) = 0 [pid 14461] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14461] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14461] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14461] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14461] open("./bus", O_RDONLY) = 3 [pid 14461] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14461] exit_group(0) = ? [pid 14461] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14461, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14462 ./strace-static-x86_64: Process 14462 attached [pid 14462] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14462] setpgid(0, 0) = 0 [pid 14462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14462] write(3, "1000", 4) = 4 [pid 14462] close(3) = 0 [pid 14462] memfd_create("syzkaller", 0) = 3 [pid 14462] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14462] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14462] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14462] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14462] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14462] ioctl(4, LOOP_CLR_FD) = 0 [pid 14462] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14462] close(4) = 0 [pid 14462] close(3) = 0 [pid 14462] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14462] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14462] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14462] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14462] open("./bus", O_RDONLY) = 3 [pid 14462] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14462] exit_group(0) = ? [pid 14462] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14462, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14463 ./strace-static-x86_64: Process 14463 attached [pid 14463] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14463] setpgid(0, 0) = 0 [pid 14463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14463] write(3, "1000", 4) = 4 [pid 14463] close(3) = 0 [pid 14463] memfd_create("syzkaller", 0) = 3 [pid 14463] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14463] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14463] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14463] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14463] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14463] ioctl(4, LOOP_CLR_FD) = 0 [pid 14463] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14463] close(4) = 0 [pid 14463] close(3) = 0 [pid 14463] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14463] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14463] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14463] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14463] open("./bus", O_RDONLY) = 3 [pid 14463] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14463] exit_group(0) = ? [pid 14463] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14463, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14464 ./strace-static-x86_64: Process 14464 attached [pid 14464] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14464] setpgid(0, 0) = 0 [pid 14464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14464] write(3, "1000", 4) = 4 [pid 14464] close(3) = 0 [pid 14464] memfd_create("syzkaller", 0) = 3 [pid 14464] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14464] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14464] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14464] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14464] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14464] ioctl(4, LOOP_CLR_FD) = 0 [pid 14464] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14464] close(4) = 0 [pid 14464] close(3) = 0 [pid 14464] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14464] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14464] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14464] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14464] open("./bus", O_RDONLY) = 3 [pid 14464] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14464] exit_group(0) = ? [pid 14464] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14464, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14465 ./strace-static-x86_64: Process 14465 attached [pid 14465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14465] setpgid(0, 0) = 0 [pid 14465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14465] write(3, "1000", 4) = 4 [pid 14465] close(3) = 0 [pid 14465] memfd_create("syzkaller", 0) = 3 [pid 14465] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14465] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14465] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14465] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14465] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14465] ioctl(4, LOOP_CLR_FD) = 0 [pid 14465] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14465] close(4) = 0 [pid 14465] close(3) = 0 [pid 14465] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14465] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14465] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14465] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14465] open("./bus", O_RDONLY) = 3 [pid 14465] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14465] exit_group(0) = ? [pid 14465] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14465, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14466 ./strace-static-x86_64: Process 14466 attached [pid 14466] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14466] setpgid(0, 0) = 0 [pid 14466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14466] write(3, "1000", 4) = 4 [pid 14466] close(3) = 0 [pid 14466] memfd_create("syzkaller", 0) = 3 [pid 14466] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14466] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14466] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14466] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14466] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14466] ioctl(4, LOOP_CLR_FD) = 0 [pid 14466] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14466] close(4) = 0 [pid 14466] close(3) = 0 [pid 14466] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14466] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14466] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14466] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14466] open("./bus", O_RDONLY) = 3 [pid 14466] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14466] exit_group(0) = ? [pid 14466] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14466, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14467 attached , child_tidptr=0x5555575235d0) = 14467 [pid 14467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14467] setpgid(0, 0) = 0 [pid 14467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14467] write(3, "1000", 4) = 4 [pid 14467] close(3) = 0 [pid 14467] memfd_create("syzkaller", 0) = 3 [pid 14467] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14467] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14467] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14467] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14467] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14467] ioctl(4, LOOP_CLR_FD) = 0 [pid 14467] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14467] close(4) = 0 [pid 14467] close(3) = 0 [pid 14467] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14467] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14467] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14467] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14467] open("./bus", O_RDONLY) = 3 [pid 14467] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14467] exit_group(0) = ? [pid 14467] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14467, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14468 ./strace-static-x86_64: Process 14468 attached [pid 14468] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14468] setpgid(0, 0) = 0 [pid 14468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14468] write(3, "1000", 4) = 4 [pid 14468] close(3) = 0 [pid 14468] memfd_create("syzkaller", 0) = 3 [pid 14468] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14468] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14468] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14468] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14468] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14468] ioctl(4, LOOP_CLR_FD) = 0 [pid 14468] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14468] close(4) = 0 [pid 14468] close(3) = 0 [pid 14468] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14468] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14468] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14468] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14468] open("./bus", O_RDONLY) = 3 [pid 14468] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14468] exit_group(0) = ? [pid 14468] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14468, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14469 ./strace-static-x86_64: Process 14469 attached [pid 14469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14469] setpgid(0, 0) = 0 [pid 14469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14469] write(3, "1000", 4) = 4 [pid 14469] close(3) = 0 [pid 14469] memfd_create("syzkaller", 0) = 3 [pid 14469] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14469] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14469] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14469] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14469] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14469] ioctl(4, LOOP_CLR_FD) = 0 [pid 14469] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14469] close(4) = 0 [pid 14469] close(3) = 0 [pid 14469] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14469] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14469] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14469] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14469] open("./bus", O_RDONLY) = 3 [pid 14469] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14469] exit_group(0) = ? [pid 14469] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14469, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14470 ./strace-static-x86_64: Process 14470 attached [pid 14470] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14470] setpgid(0, 0) = 0 [pid 14470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14470] write(3, "1000", 4) = 4 [pid 14470] close(3) = 0 [pid 14470] memfd_create("syzkaller", 0) = 3 [pid 14470] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14470] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14470] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14470] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14470] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14470] ioctl(4, LOOP_CLR_FD) = 0 [pid 14470] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14470] close(4) = 0 [pid 14470] close(3) = 0 [pid 14470] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14470] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14470] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14470] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14470] open("./bus", O_RDONLY) = 3 [pid 14470] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14470] exit_group(0) = ? [pid 14470] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14470, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14471 ./strace-static-x86_64: Process 14471 attached [pid 14471] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14471] setpgid(0, 0) = 0 [pid 14471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14471] write(3, "1000", 4) = 4 [pid 14471] close(3) = 0 [pid 14471] memfd_create("syzkaller", 0) = 3 [pid 14471] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14471] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14471] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14471] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14471] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14471] ioctl(4, LOOP_CLR_FD) = 0 [pid 14471] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14471] close(4) = 0 [pid 14471] close(3) = 0 [pid 14471] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14471] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14471] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14471] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14471] open("./bus", O_RDONLY) = 3 [pid 14471] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14471] exit_group(0) = ? [pid 14471] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14471, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14472 attached , child_tidptr=0x5555575235d0) = 14472 [pid 14472] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14472] setpgid(0, 0) = 0 [pid 14472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14472] write(3, "1000", 4) = 4 [pid 14472] close(3) = 0 [pid 14472] memfd_create("syzkaller", 0) = 3 [pid 14472] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14472] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14472] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14472] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14472] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14472] ioctl(4, LOOP_CLR_FD) = 0 [pid 14472] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14472] close(4) = 0 [pid 14472] close(3) = 0 [pid 14472] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14472] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14472] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14472] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14472] open("./bus", O_RDONLY) = 3 [pid 14472] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14472] exit_group(0) = ? [pid 14472] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14472, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14473 attached , child_tidptr=0x5555575235d0) = 14473 [pid 14473] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14473] setpgid(0, 0) = 0 [pid 14473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14473] write(3, "1000", 4) = 4 [pid 14473] close(3) = 0 [pid 14473] memfd_create("syzkaller", 0) = 3 [pid 14473] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14473] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14473] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14473] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14473] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14473] ioctl(4, LOOP_CLR_FD) = 0 [pid 14473] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14473] close(4) = 0 [pid 14473] close(3) = 0 [pid 14473] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14473] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14473] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14473] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14473] open("./bus", O_RDONLY) = 3 [pid 14473] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14473] exit_group(0) = ? [pid 14473] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14473, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14474 ./strace-static-x86_64: Process 14474 attached [pid 14474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14474] setpgid(0, 0) = 0 [pid 14474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14474] write(3, "1000", 4) = 4 [pid 14474] close(3) = 0 [pid 14474] memfd_create("syzkaller", 0) = 3 [pid 14474] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14474] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14474] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14474] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14474] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14474] ioctl(4, LOOP_CLR_FD) = 0 [pid 14474] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14474] close(4) = 0 [pid 14474] close(3) = 0 [pid 14474] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14474] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14474] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14474] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14474] open("./bus", O_RDONLY) = 3 [pid 14474] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14474] exit_group(0) = ? [pid 14474] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14474, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14475 ./strace-static-x86_64: Process 14475 attached [pid 14475] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14475] setpgid(0, 0) = 0 [pid 14475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14475] write(3, "1000", 4) = 4 [pid 14475] close(3) = 0 [pid 14475] memfd_create("syzkaller", 0) = 3 [pid 14475] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14475] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14475] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14475] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14475] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14475] ioctl(4, LOOP_CLR_FD) = 0 [pid 14475] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14475] close(4) = 0 [pid 14475] close(3) = 0 [pid 14475] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14475] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14475] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14475] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14475] open("./bus", O_RDONLY) = 3 [pid 14475] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14475] exit_group(0) = ? [pid 14475] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14475, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14476 ./strace-static-x86_64: Process 14476 attached [pid 14476] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14476] setpgid(0, 0) = 0 [pid 14476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14476] write(3, "1000", 4) = 4 [pid 14476] close(3) = 0 [pid 14476] memfd_create("syzkaller", 0) = 3 [pid 14476] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14476] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14476] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14476] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14476] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14476] ioctl(4, LOOP_CLR_FD) = 0 [pid 14476] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14476] close(4) = 0 [pid 14476] close(3) = 0 [pid 14476] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14476] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14476] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14476] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14476] open("./bus", O_RDONLY) = 3 [pid 14476] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14476] exit_group(0) = ? [pid 14476] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14476, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14477 attached , child_tidptr=0x5555575235d0) = 14477 [pid 14477] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14477] setpgid(0, 0) = 0 [pid 14477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14477] write(3, "1000", 4) = 4 [pid 14477] close(3) = 0 [pid 14477] memfd_create("syzkaller", 0) = 3 [pid 14477] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14477] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14477] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14477] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14477] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14477] ioctl(4, LOOP_CLR_FD) = 0 [pid 14477] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14477] close(4) = 0 [pid 14477] close(3) = 0 [pid 14477] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14477] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14477] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14477] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14477] open("./bus", O_RDONLY) = 3 [pid 14477] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14477] exit_group(0) = ? [pid 14477] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14477, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14478 ./strace-static-x86_64: Process 14478 attached [pid 14478] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14478] setpgid(0, 0) = 0 [pid 14478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14478] write(3, "1000", 4) = 4 [pid 14478] close(3) = 0 [pid 14478] memfd_create("syzkaller", 0) = 3 [pid 14478] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14478] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14478] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14478] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14478] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14478] ioctl(4, LOOP_CLR_FD) = 0 [pid 14478] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14478] close(4) = 0 [pid 14478] close(3) = 0 [pid 14478] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14478] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14478] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14478] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14478] open("./bus", O_RDONLY) = 3 [pid 14478] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14478] exit_group(0) = ? [pid 14478] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14478, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14479 ./strace-static-x86_64: Process 14479 attached [pid 14479] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14479] setpgid(0, 0) = 0 [pid 14479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14479] write(3, "1000", 4) = 4 [pid 14479] close(3) = 0 [pid 14479] memfd_create("syzkaller", 0) = 3 [pid 14479] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14479] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14479] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14479] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14479] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14479] ioctl(4, LOOP_CLR_FD) = 0 [pid 14479] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14479] close(4) = 0 [pid 14479] close(3) = 0 [pid 14479] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14479] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14479] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14479] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14479] open("./bus", O_RDONLY) = 3 [pid 14479] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14479] exit_group(0) = ? [pid 14479] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14479, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14480 ./strace-static-x86_64: Process 14480 attached [pid 14480] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14480] setpgid(0, 0) = 0 [pid 14480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14480] write(3, "1000", 4) = 4 [pid 14480] close(3) = 0 [pid 14480] memfd_create("syzkaller", 0) = 3 [pid 14480] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14480] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14480] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14480] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14480] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14480] ioctl(4, LOOP_CLR_FD) = 0 [pid 14480] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14480] close(4) = 0 [pid 14480] close(3) = 0 [pid 14480] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14480] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14480] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14480] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14480] open("./bus", O_RDONLY) = 3 [pid 14480] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14480] exit_group(0) = ? [pid 14480] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14480, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14481 ./strace-static-x86_64: Process 14481 attached [pid 14481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14481] setpgid(0, 0) = 0 [pid 14481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14481] write(3, "1000", 4) = 4 [pid 14481] close(3) = 0 [pid 14481] memfd_create("syzkaller", 0) = 3 [pid 14481] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14481] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14481] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14481] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14481] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14481] ioctl(4, LOOP_CLR_FD) = 0 [pid 14481] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14481] close(4) = 0 [pid 14481] close(3) = 0 [pid 14481] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14481] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14481] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14481] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14481] open("./bus", O_RDONLY) = 3 [pid 14481] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14481] exit_group(0) = ? [pid 14481] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14481, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14482 attached , child_tidptr=0x5555575235d0) = 14482 [pid 14482] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14482] setpgid(0, 0) = 0 [pid 14482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14482] write(3, "1000", 4) = 4 [pid 14482] close(3) = 0 [pid 14482] memfd_create("syzkaller", 0) = 3 [pid 14482] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14482] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14482] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14482] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14482] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14482] ioctl(4, LOOP_CLR_FD) = 0 [pid 14482] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14482] close(4) = 0 [pid 14482] close(3) = 0 [pid 14482] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14482] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14482] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14482] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14482] open("./bus", O_RDONLY) = 3 [pid 14482] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14482] exit_group(0) = ? [pid 14482] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14482, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14483 ./strace-static-x86_64: Process 14483 attached [pid 14483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14483] setpgid(0, 0) = 0 [pid 14483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14483] write(3, "1000", 4) = 4 [pid 14483] close(3) = 0 [pid 14483] memfd_create("syzkaller", 0) = 3 [pid 14483] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14483] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14483] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14483] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14483] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14483] ioctl(4, LOOP_CLR_FD) = 0 [pid 14483] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14483] close(4) = 0 [pid 14483] close(3) = 0 [pid 14483] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14483] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14483] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14483] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14483] open("./bus", O_RDONLY) = 3 [pid 14483] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14483] exit_group(0) = ? [pid 14483] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14483, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14484 attached , child_tidptr=0x5555575235d0) = 14484 [pid 14484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14484] setpgid(0, 0) = 0 [pid 14484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14484] write(3, "1000", 4) = 4 [pid 14484] close(3) = 0 [pid 14484] memfd_create("syzkaller", 0) = 3 [pid 14484] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14484] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14484] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14484] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14484] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14484] ioctl(4, LOOP_CLR_FD) = 0 [pid 14484] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14484] close(4) = 0 [pid 14484] close(3) = 0 [pid 14484] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14484] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14484] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14484] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14484] open("./bus", O_RDONLY) = 3 [pid 14484] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14484] exit_group(0) = ? [pid 14484] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14484, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14485 ./strace-static-x86_64: Process 14485 attached [pid 14485] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14485] setpgid(0, 0) = 0 [pid 14485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14485] write(3, "1000", 4) = 4 [pid 14485] close(3) = 0 [pid 14485] memfd_create("syzkaller", 0) = 3 [pid 14485] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14485] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14485] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14485] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14485] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14485] ioctl(4, LOOP_CLR_FD) = 0 [pid 14485] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14485] close(4) = 0 [pid 14485] close(3) = 0 [pid 14485] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14485] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14485] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14485] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14485] open("./bus", O_RDONLY) = 3 [pid 14485] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14485] exit_group(0) = ? [pid 14485] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14485, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14486 ./strace-static-x86_64: Process 14486 attached [pid 14486] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14486] setpgid(0, 0) = 0 [pid 14486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14486] write(3, "1000", 4) = 4 [pid 14486] close(3) = 0 [pid 14486] memfd_create("syzkaller", 0) = 3 [pid 14486] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14486] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14486] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14486] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14486] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14486] ioctl(4, LOOP_CLR_FD) = 0 [pid 14486] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14486] close(4) = 0 [pid 14486] close(3) = 0 [pid 14486] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14486] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14486] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14486] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14486] open("./bus", O_RDONLY) = 3 [pid 14486] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14486] exit_group(0) = ? [pid 14486] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14486, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14487 ./strace-static-x86_64: Process 14487 attached [pid 14487] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14487] setpgid(0, 0) = 0 [pid 14487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14487] write(3, "1000", 4) = 4 [pid 14487] close(3) = 0 [pid 14487] memfd_create("syzkaller", 0) = 3 [pid 14487] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14487] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14487] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14487] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14487] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14487] ioctl(4, LOOP_CLR_FD) = 0 [pid 14487] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14487] close(4) = 0 [pid 14487] close(3) = 0 [pid 14487] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14487] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14487] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14487] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14487] open("./bus", O_RDONLY) = 3 [pid 14487] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14487] exit_group(0) = ? [pid 14487] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14487, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14488 attached , child_tidptr=0x5555575235d0) = 14488 [pid 14488] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14488] setpgid(0, 0) = 0 [pid 14488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14488] write(3, "1000", 4) = 4 [pid 14488] close(3) = 0 [pid 14488] memfd_create("syzkaller", 0) = 3 [pid 14488] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14488] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14488] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14488] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14488] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14488] ioctl(4, LOOP_CLR_FD) = 0 [pid 14488] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14488] close(4) = 0 [pid 14488] close(3) = 0 [pid 14488] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14488] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14488] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14488] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14488] open("./bus", O_RDONLY) = 3 [pid 14488] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14488] exit_group(0) = ? [pid 14488] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14488, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14489 attached , child_tidptr=0x5555575235d0) = 14489 [pid 14489] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14489] setpgid(0, 0) = 0 [pid 14489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14489] write(3, "1000", 4) = 4 [pid 14489] close(3) = 0 [pid 14489] memfd_create("syzkaller", 0) = 3 [pid 14489] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14489] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14489] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14489] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14489] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14489] ioctl(4, LOOP_CLR_FD) = 0 [pid 14489] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14489] close(4) = 0 [pid 14489] close(3) = 0 [pid 14489] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14489] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14489] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14489] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14489] open("./bus", O_RDONLY) = 3 [pid 14489] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14489] exit_group(0) = ? [pid 14489] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14489, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14490 ./strace-static-x86_64: Process 14490 attached [pid 14490] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14490] setpgid(0, 0) = 0 [pid 14490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14490] write(3, "1000", 4) = 4 [pid 14490] close(3) = 0 [pid 14490] memfd_create("syzkaller", 0) = 3 [pid 14490] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14490] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14490] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14490] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14490] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14490] ioctl(4, LOOP_CLR_FD) = 0 [pid 14490] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14490] close(4) = 0 [pid 14490] close(3) = 0 [pid 14490] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14490] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14490] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14490] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14490] open("./bus", O_RDONLY) = 3 [pid 14490] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14490] exit_group(0) = ? [pid 14490] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14490, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14491 ./strace-static-x86_64: Process 14491 attached [pid 14491] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14491] setpgid(0, 0) = 0 [pid 14491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14491] write(3, "1000", 4) = 4 [pid 14491] close(3) = 0 [pid 14491] memfd_create("syzkaller", 0) = 3 [pid 14491] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14491] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14491] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14491] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14491] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14491] ioctl(4, LOOP_CLR_FD) = 0 [pid 14491] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14491] close(4) = 0 [pid 14491] close(3) = 0 [pid 14491] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14491] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14491] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14491] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14491] open("./bus", O_RDONLY) = 3 [pid 14491] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14491] exit_group(0) = ? [pid 14491] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14491, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14492 ./strace-static-x86_64: Process 14492 attached [pid 14492] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14492] setpgid(0, 0) = 0 [pid 14492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14492] write(3, "1000", 4) = 4 [pid 14492] close(3) = 0 [pid 14492] memfd_create("syzkaller", 0) = 3 [pid 14492] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14492] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14492] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14492] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14492] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14492] ioctl(4, LOOP_CLR_FD) = 0 [pid 14492] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14492] close(4) = 0 [pid 14492] close(3) = 0 [pid 14492] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14492] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14492] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14492] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14492] open("./bus", O_RDONLY) = 3 [pid 14492] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14492] exit_group(0) = ? [pid 14492] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14492, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14493 attached , child_tidptr=0x5555575235d0) = 14493 [pid 14493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14493] setpgid(0, 0) = 0 [pid 14493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14493] write(3, "1000", 4) = 4 [pid 14493] close(3) = 0 [pid 14493] memfd_create("syzkaller", 0) = 3 [pid 14493] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14493] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14493] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14493] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14493] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14493] ioctl(4, LOOP_CLR_FD) = 0 [pid 14493] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14493] close(4) = 0 [pid 14493] close(3) = 0 [pid 14493] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14493] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14493] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14493] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14493] open("./bus", O_RDONLY) = 3 [pid 14493] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14493] exit_group(0) = ? [pid 14493] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14493, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14494 ./strace-static-x86_64: Process 14494 attached [pid 14494] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14494] setpgid(0, 0) = 0 [pid 14494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14494] write(3, "1000", 4) = 4 [pid 14494] close(3) = 0 [pid 14494] memfd_create("syzkaller", 0) = 3 [pid 14494] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14494] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14494] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14494] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14494] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14494] ioctl(4, LOOP_CLR_FD) = 0 [pid 14494] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14494] close(4) = 0 [pid 14494] close(3) = 0 [pid 14494] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14494] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14494] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14494] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14494] open("./bus", O_RDONLY) = 3 [pid 14494] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14494] exit_group(0) = ? [pid 14494] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14494, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14495 ./strace-static-x86_64: Process 14495 attached [pid 14495] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14495] setpgid(0, 0) = 0 [pid 14495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14495] write(3, "1000", 4) = 4 [pid 14495] close(3) = 0 [pid 14495] memfd_create("syzkaller", 0) = 3 [pid 14495] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14495] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14495] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14495] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14495] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14495] ioctl(4, LOOP_CLR_FD) = 0 [pid 14495] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14495] close(4) = 0 [pid 14495] close(3) = 0 [pid 14495] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14495] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14495] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14495] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14495] open("./bus", O_RDONLY) = 3 [pid 14495] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14495] exit_group(0) = ? [pid 14495] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14495, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14496 attached , child_tidptr=0x5555575235d0) = 14496 [pid 14496] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14496] setpgid(0, 0) = 0 [pid 14496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14496] write(3, "1000", 4) = 4 [pid 14496] close(3) = 0 [pid 14496] memfd_create("syzkaller", 0) = 3 [pid 14496] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14496] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14496] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14496] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14496] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14496] ioctl(4, LOOP_CLR_FD) = 0 [pid 14496] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14496] close(4) = 0 [pid 14496] close(3) = 0 [pid 14496] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14496] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14496] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14496] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14496] open("./bus", O_RDONLY) = 3 [pid 14496] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14496] exit_group(0) = ? [pid 14496] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14496, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14497 attached , child_tidptr=0x5555575235d0) = 14497 [pid 14497] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14497] setpgid(0, 0) = 0 [pid 14497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14497] write(3, "1000", 4) = 4 [pid 14497] close(3) = 0 [pid 14497] memfd_create("syzkaller", 0) = 3 [pid 14497] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14497] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14497] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14497] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14497] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14497] ioctl(4, LOOP_CLR_FD) = 0 [pid 14497] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14497] close(4) = 0 [pid 14497] close(3) = 0 [pid 14497] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14497] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14497] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14497] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14497] open("./bus", O_RDONLY) = 3 [pid 14497] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14497] exit_group(0) = ? [pid 14497] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14497, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14498 attached , child_tidptr=0x5555575235d0) = 14498 [pid 14498] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14498] setpgid(0, 0) = 0 [pid 14498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14498] write(3, "1000", 4) = 4 [pid 14498] close(3) = 0 [pid 14498] memfd_create("syzkaller", 0) = 3 [pid 14498] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14498] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14498] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14498] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14498] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14498] ioctl(4, LOOP_CLR_FD) = 0 [pid 14498] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14498] close(4) = 0 [pid 14498] close(3) = 0 [pid 14498] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14498] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14498] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14498] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14498] open("./bus", O_RDONLY) = 3 [pid 14498] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14498] exit_group(0) = ? [pid 14498] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14498, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14499 ./strace-static-x86_64: Process 14499 attached [pid 14499] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14499] setpgid(0, 0) = 0 [pid 14499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14499] write(3, "1000", 4) = 4 [pid 14499] close(3) = 0 [pid 14499] memfd_create("syzkaller", 0) = 3 [pid 14499] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14499] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14499] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14499] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14499] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14499] ioctl(4, LOOP_CLR_FD) = 0 [pid 14499] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14499] close(4) = 0 [pid 14499] close(3) = 0 [pid 14499] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14499] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14499] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14499] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14499] open("./bus", O_RDONLY) = 3 [pid 14499] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14499] exit_group(0) = ? [pid 14499] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14499, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14500 ./strace-static-x86_64: Process 14500 attached [pid 14500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14500] setpgid(0, 0) = 0 [pid 14500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14500] write(3, "1000", 4) = 4 [pid 14500] close(3) = 0 [pid 14500] memfd_create("syzkaller", 0) = 3 [pid 14500] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14500] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14500] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14500] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14500] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14500] ioctl(4, LOOP_CLR_FD) = 0 [pid 14500] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14500] close(4) = 0 [pid 14500] close(3) = 0 [pid 14500] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14500] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14500] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14500] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14500] open("./bus", O_RDONLY) = 3 [pid 14500] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14500] exit_group(0) = ? [pid 14500] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14500, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14501 ./strace-static-x86_64: Process 14501 attached [pid 14501] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14501] setpgid(0, 0) = 0 [pid 14501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14501] write(3, "1000", 4) = 4 [pid 14501] close(3) = 0 [pid 14501] memfd_create("syzkaller", 0) = 3 [pid 14501] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14501] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14501] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14501] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14501] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14501] ioctl(4, LOOP_CLR_FD) = 0 [pid 14501] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14501] close(4) = 0 [pid 14501] close(3) = 0 [pid 14501] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14501] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14501] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14501] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14501] open("./bus", O_RDONLY) = 3 [pid 14501] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14501] exit_group(0) = ? [pid 14501] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14501, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14502 attached , child_tidptr=0x5555575235d0) = 14502 [pid 14502] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14502] setpgid(0, 0) = 0 [pid 14502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14502] write(3, "1000", 4) = 4 [pid 14502] close(3) = 0 [pid 14502] memfd_create("syzkaller", 0) = 3 [pid 14502] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14502] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14502] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14502] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14502] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14502] ioctl(4, LOOP_CLR_FD) = 0 [pid 14502] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14502] close(4) = 0 [pid 14502] close(3) = 0 [pid 14502] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14502] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14502] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14502] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14502] open("./bus", O_RDONLY) = 3 [pid 14502] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14502] exit_group(0) = ? [pid 14502] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14502, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14503 ./strace-static-x86_64: Process 14503 attached [pid 14503] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14503] setpgid(0, 0) = 0 [pid 14503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14503] write(3, "1000", 4) = 4 [pid 14503] close(3) = 0 [pid 14503] memfd_create("syzkaller", 0) = 3 [pid 14503] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14503] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14503] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14503] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14503] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14503] ioctl(4, LOOP_CLR_FD) = 0 [pid 14503] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14503] close(4) = 0 [pid 14503] close(3) = 0 [pid 14503] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14503] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14503] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14503] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14503] open("./bus", O_RDONLY) = 3 [pid 14503] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14503] exit_group(0) = ? [pid 14503] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14503, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14504 ./strace-static-x86_64: Process 14504 attached [pid 14504] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14504] setpgid(0, 0) = 0 [pid 14504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14504] write(3, "1000", 4) = 4 [pid 14504] close(3) = 0 [pid 14504] memfd_create("syzkaller", 0) = 3 [pid 14504] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14504] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14504] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14504] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14504] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14504] ioctl(4, LOOP_CLR_FD) = 0 [pid 14504] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14504] close(4) = 0 [pid 14504] close(3) = 0 [pid 14504] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14504] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14504] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14504] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14504] open("./bus", O_RDONLY) = 3 [pid 14504] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14504] exit_group(0) = ? [pid 14504] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14504, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14505 attached , child_tidptr=0x5555575235d0) = 14505 [pid 14505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14505] setpgid(0, 0) = 0 [pid 14505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14505] write(3, "1000", 4) = 4 [pid 14505] close(3) = 0 [pid 14505] memfd_create("syzkaller", 0) = 3 [pid 14505] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14505] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14505] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14505] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14505] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14505] ioctl(4, LOOP_CLR_FD) = 0 [pid 14505] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14505] close(4) = 0 [pid 14505] close(3) = 0 [pid 14505] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14505] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14505] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14505] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14505] open("./bus", O_RDONLY) = 3 [pid 14505] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14505] exit_group(0) = ? [pid 14505] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14505, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14506 ./strace-static-x86_64: Process 14506 attached [pid 14506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14506] setpgid(0, 0) = 0 [pid 14506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14506] write(3, "1000", 4) = 4 [pid 14506] close(3) = 0 [pid 14506] memfd_create("syzkaller", 0) = 3 [pid 14506] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14506] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14506] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14506] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14506] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14506] ioctl(4, LOOP_CLR_FD) = 0 [pid 14506] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14506] close(4) = 0 [pid 14506] close(3) = 0 [pid 14506] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14506] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14506] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14506] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14506] open("./bus", O_RDONLY) = 3 [pid 14506] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14506] exit_group(0) = ? [pid 14506] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14506, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14507 ./strace-static-x86_64: Process 14507 attached [pid 14507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14507] setpgid(0, 0) = 0 [pid 14507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14507] write(3, "1000", 4) = 4 [pid 14507] close(3) = 0 [pid 14507] memfd_create("syzkaller", 0) = 3 [pid 14507] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14507] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14507] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14507] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14507] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14507] ioctl(4, LOOP_CLR_FD) = 0 [pid 14507] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14507] close(4) = 0 [pid 14507] close(3) = 0 [pid 14507] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14507] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14507] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14507] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14507] open("./bus", O_RDONLY) = 3 [pid 14507] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14507] exit_group(0) = ? [pid 14507] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14507, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14508 ./strace-static-x86_64: Process 14508 attached [pid 14508] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14508] setpgid(0, 0) = 0 [pid 14508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14508] write(3, "1000", 4) = 4 [pid 14508] close(3) = 0 [pid 14508] memfd_create("syzkaller", 0) = 3 [pid 14508] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14508] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14508] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14508] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14508] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14508] ioctl(4, LOOP_CLR_FD) = 0 [pid 14508] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14508] close(4) = 0 [pid 14508] close(3) = 0 [pid 14508] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14508] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14508] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14508] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14508] open("./bus", O_RDONLY) = 3 [pid 14508] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14508] exit_group(0) = ? [pid 14508] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14508, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14509 ./strace-static-x86_64: Process 14509 attached [pid 14509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14509] setpgid(0, 0) = 0 [pid 14509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14509] write(3, "1000", 4) = 4 [pid 14509] close(3) = 0 [pid 14509] memfd_create("syzkaller", 0) = 3 [pid 14509] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14509] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14509] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14509] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14509] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14509] ioctl(4, LOOP_CLR_FD) = 0 [pid 14509] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14509] close(4) = 0 [pid 14509] close(3) = 0 [pid 14509] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14509] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14509] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14509] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14509] open("./bus", O_RDONLY) = 3 [pid 14509] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14509] exit_group(0) = ? [pid 14509] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14509, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14510 ./strace-static-x86_64: Process 14510 attached [pid 14510] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14510] setpgid(0, 0) = 0 [pid 14510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14510] write(3, "1000", 4) = 4 [pid 14510] close(3) = 0 [pid 14510] memfd_create("syzkaller", 0) = 3 [pid 14510] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14510] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14510] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14510] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14510] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14510] ioctl(4, LOOP_CLR_FD) = 0 [pid 14510] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14510] close(4) = 0 [pid 14510] close(3) = 0 [pid 14510] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14510] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14510] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14510] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14510] open("./bus", O_RDONLY) = 3 [pid 14510] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14510] exit_group(0) = ? [pid 14510] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14510, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14511 ./strace-static-x86_64: Process 14511 attached [pid 14511] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14511] setpgid(0, 0) = 0 [pid 14511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14511] write(3, "1000", 4) = 4 [pid 14511] close(3) = 0 [pid 14511] memfd_create("syzkaller", 0) = 3 [pid 14511] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14511] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14511] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14511] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14511] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14511] ioctl(4, LOOP_CLR_FD) = 0 [pid 14511] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14511] close(4) = 0 [pid 14511] close(3) = 0 [pid 14511] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14511] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14511] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14511] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14511] open("./bus", O_RDONLY) = 3 [pid 14511] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14511] exit_group(0) = ? [pid 14511] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14511, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14512 attached , child_tidptr=0x5555575235d0) = 14512 [pid 14512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14512] setpgid(0, 0) = 0 [pid 14512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14512] write(3, "1000", 4) = 4 [pid 14512] close(3) = 0 [pid 14512] memfd_create("syzkaller", 0) = 3 [pid 14512] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14512] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14512] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14512] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14512] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14512] ioctl(4, LOOP_CLR_FD) = 0 [pid 14512] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14512] close(4) = 0 [pid 14512] close(3) = 0 [pid 14512] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14512] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14512] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14512] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14512] open("./bus", O_RDONLY) = 3 [pid 14512] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14512] exit_group(0) = ? [pid 14512] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14512, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14513 attached , child_tidptr=0x5555575235d0) = 14513 [pid 14513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14513] setpgid(0, 0) = 0 [pid 14513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14513] write(3, "1000", 4) = 4 [pid 14513] close(3) = 0 [pid 14513] memfd_create("syzkaller", 0) = 3 [pid 14513] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14513] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14513] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14513] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14513] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14513] ioctl(4, LOOP_CLR_FD) = 0 [pid 14513] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14513] close(4) = 0 [pid 14513] close(3) = 0 [pid 14513] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14513] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14513] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14513] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14513] open("./bus", O_RDONLY) = 3 [pid 14513] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14513] exit_group(0) = ? [pid 14513] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14513, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14514 attached , child_tidptr=0x5555575235d0) = 14514 [pid 14514] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14514] setpgid(0, 0) = 0 [pid 14514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14514] write(3, "1000", 4) = 4 [pid 14514] close(3) = 0 [pid 14514] memfd_create("syzkaller", 0) = 3 [pid 14514] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14514] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14514] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14514] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14514] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14514] ioctl(4, LOOP_CLR_FD) = 0 [pid 14514] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14514] close(4) = 0 [pid 14514] close(3) = 0 [pid 14514] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14514] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14514] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14514] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14514] open("./bus", O_RDONLY) = 3 [pid 14514] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14514] exit_group(0) = ? [pid 14514] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14514, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14515 ./strace-static-x86_64: Process 14515 attached [pid 14515] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14515] setpgid(0, 0) = 0 [pid 14515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14515] write(3, "1000", 4) = 4 [pid 14515] close(3) = 0 [pid 14515] memfd_create("syzkaller", 0) = 3 [pid 14515] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14515] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14515] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14515] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14515] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14515] ioctl(4, LOOP_CLR_FD) = 0 [pid 14515] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14515] close(4) = 0 [pid 14515] close(3) = 0 [pid 14515] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14515] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14515] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14515] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14515] open("./bus", O_RDONLY) = 3 [pid 14515] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14515] exit_group(0) = ? [pid 14515] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14515, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14516 ./strace-static-x86_64: Process 14516 attached [pid 14516] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14516] setpgid(0, 0) = 0 [pid 14516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14516] write(3, "1000", 4) = 4 [pid 14516] close(3) = 0 [pid 14516] memfd_create("syzkaller", 0) = 3 [pid 14516] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14516] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14516] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14516] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14516] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14516] ioctl(4, LOOP_CLR_FD) = 0 [pid 14516] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14516] close(4) = 0 [pid 14516] close(3) = 0 [pid 14516] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14516] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14516] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14516] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14516] open("./bus", O_RDONLY) = 3 [pid 14516] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14516] exit_group(0) = ? [pid 14516] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14516, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14517 attached , child_tidptr=0x5555575235d0) = 14517 [pid 14517] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14517] setpgid(0, 0) = 0 [pid 14517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14517] write(3, "1000", 4) = 4 [pid 14517] close(3) = 0 [pid 14517] memfd_create("syzkaller", 0) = 3 [pid 14517] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14517] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14517] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14517] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14517] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14517] ioctl(4, LOOP_CLR_FD) = 0 [pid 14517] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14517] close(4) = 0 [pid 14517] close(3) = 0 [pid 14517] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14517] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14517] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14517] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14517] open("./bus", O_RDONLY) = 3 [pid 14517] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14517] exit_group(0) = ? [pid 14517] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14517, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14518 attached , child_tidptr=0x5555575235d0) = 14518 [pid 14518] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14518] setpgid(0, 0) = 0 [pid 14518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14518] write(3, "1000", 4) = 4 [pid 14518] close(3) = 0 [pid 14518] memfd_create("syzkaller", 0) = 3 [pid 14518] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14518] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14518] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14518] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14518] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14518] ioctl(4, LOOP_CLR_FD) = 0 [pid 14518] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14518] close(4) = 0 [pid 14518] close(3) = 0 [pid 14518] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14518] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14518] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14518] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14518] open("./bus", O_RDONLY) = 3 [pid 14518] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14518] exit_group(0) = ? [pid 14518] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14518, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14519 ./strace-static-x86_64: Process 14519 attached [pid 14519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14519] setpgid(0, 0) = 0 [pid 14519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14519] write(3, "1000", 4) = 4 [pid 14519] close(3) = 0 [pid 14519] memfd_create("syzkaller", 0) = 3 [pid 14519] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14519] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14519] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14519] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14519] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14519] ioctl(4, LOOP_CLR_FD) = 0 [pid 14519] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14519] close(4) = 0 [pid 14519] close(3) = 0 [pid 14519] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14519] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14519] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14519] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14519] open("./bus", O_RDONLY) = 3 [pid 14519] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14519] exit_group(0) = ? [pid 14519] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14519, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14520 ./strace-static-x86_64: Process 14520 attached [pid 14520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14520] setpgid(0, 0) = 0 [pid 14520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14520] write(3, "1000", 4) = 4 [pid 14520] close(3) = 0 [pid 14520] memfd_create("syzkaller", 0) = 3 [pid 14520] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14520] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14520] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14520] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14520] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14520] ioctl(4, LOOP_CLR_FD) = 0 [pid 14520] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14520] close(4) = 0 [pid 14520] close(3) = 0 [pid 14520] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14520] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14520] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14520] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14520] open("./bus", O_RDONLY) = 3 [pid 14520] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14520] exit_group(0) = ? [pid 14520] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14520, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14521 ./strace-static-x86_64: Process 14521 attached [pid 14521] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14521] setpgid(0, 0) = 0 [pid 14521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14521] write(3, "1000", 4) = 4 [pid 14521] close(3) = 0 [pid 14521] memfd_create("syzkaller", 0) = 3 [pid 14521] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14521] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14521] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14521] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14521] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14521] ioctl(4, LOOP_CLR_FD) = 0 [pid 14521] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14521] close(4) = 0 [pid 14521] close(3) = 0 [pid 14521] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14521] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14521] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14521] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14521] open("./bus", O_RDONLY) = 3 [pid 14521] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14521] exit_group(0) = ? [pid 14521] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14521, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14522 ./strace-static-x86_64: Process 14522 attached [pid 14522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14522] setpgid(0, 0) = 0 [pid 14522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14522] write(3, "1000", 4) = 4 [pid 14522] close(3) = 0 [pid 14522] memfd_create("syzkaller", 0) = 3 [pid 14522] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14522] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14522] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14522] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14522] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14522] ioctl(4, LOOP_CLR_FD) = 0 [pid 14522] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14522] close(4) = 0 [pid 14522] close(3) = 0 [pid 14522] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14522] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14522] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14522] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14522] open("./bus", O_RDONLY) = 3 [pid 14522] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14522] exit_group(0) = ? [pid 14522] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14522, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14523 ./strace-static-x86_64: Process 14523 attached [pid 14523] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14523] setpgid(0, 0) = 0 [pid 14523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14523] write(3, "1000", 4) = 4 [pid 14523] close(3) = 0 [pid 14523] memfd_create("syzkaller", 0) = 3 [pid 14523] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14523] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14523] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14523] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14523] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14523] ioctl(4, LOOP_CLR_FD) = 0 [pid 14523] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14523] close(4) = 0 [pid 14523] close(3) = 0 [pid 14523] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14523] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14523] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14523] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14523] open("./bus", O_RDONLY) = 3 [pid 14523] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14523] exit_group(0) = ? [pid 14523] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14523, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14524 ./strace-static-x86_64: Process 14524 attached [pid 14524] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14524] setpgid(0, 0) = 0 [pid 14524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14524] write(3, "1000", 4) = 4 [pid 14524] close(3) = 0 [pid 14524] memfd_create("syzkaller", 0) = 3 [pid 14524] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14524] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14524] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14524] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14524] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14524] ioctl(4, LOOP_CLR_FD) = 0 [pid 14524] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14524] close(4) = 0 [pid 14524] close(3) = 0 [pid 14524] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14524] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14524] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14524] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14524] open("./bus", O_RDONLY) = 3 [pid 14524] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14524] exit_group(0) = ? [pid 14524] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14524, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14525 ./strace-static-x86_64: Process 14525 attached [pid 14525] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14525] setpgid(0, 0) = 0 [pid 14525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14525] write(3, "1000", 4) = 4 [pid 14525] close(3) = 0 [pid 14525] memfd_create("syzkaller", 0) = 3 [pid 14525] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14525] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14525] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14525] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14525] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14525] ioctl(4, LOOP_CLR_FD) = 0 [pid 14525] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14525] close(4) = 0 [pid 14525] close(3) = 0 [pid 14525] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14525] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14525] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14525] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14525] open("./bus", O_RDONLY) = 3 [pid 14525] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14525] exit_group(0) = ? [pid 14525] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14525, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14526 ./strace-static-x86_64: Process 14526 attached [pid 14526] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14526] setpgid(0, 0) = 0 [pid 14526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14526] write(3, "1000", 4) = 4 [pid 14526] close(3) = 0 [pid 14526] memfd_create("syzkaller", 0) = 3 [pid 14526] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14526] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14526] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14526] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14526] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14526] ioctl(4, LOOP_CLR_FD) = 0 [pid 14526] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14526] close(4) = 0 [pid 14526] close(3) = 0 [pid 14526] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14526] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14526] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14526] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14526] open("./bus", O_RDONLY) = 3 [pid 14526] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14526] exit_group(0) = ? [pid 14526] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14526, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14527 ./strace-static-x86_64: Process 14527 attached [pid 14527] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14527] setpgid(0, 0) = 0 [pid 14527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14527] write(3, "1000", 4) = 4 [pid 14527] close(3) = 0 [pid 14527] memfd_create("syzkaller", 0) = 3 [pid 14527] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14527] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14527] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14527] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14527] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14527] ioctl(4, LOOP_CLR_FD) = 0 [pid 14527] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14527] close(4) = 0 [pid 14527] close(3) = 0 [pid 14527] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14527] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14527] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14527] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14527] open("./bus", O_RDONLY) = 3 [pid 14527] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14527] exit_group(0) = ? [pid 14527] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14527, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14528 attached , child_tidptr=0x5555575235d0) = 14528 [pid 14528] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14528] setpgid(0, 0) = 0 [pid 14528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14528] write(3, "1000", 4) = 4 [pid 14528] close(3) = 0 [pid 14528] memfd_create("syzkaller", 0) = 3 [pid 14528] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14528] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14528] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14528] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14528] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14528] ioctl(4, LOOP_CLR_FD) = 0 [pid 14528] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14528] close(4) = 0 [pid 14528] close(3) = 0 [pid 14528] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14528] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14528] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14528] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14528] open("./bus", O_RDONLY) = 3 [pid 14528] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14528] exit_group(0) = ? [pid 14528] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14528, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14529 ./strace-static-x86_64: Process 14529 attached [pid 14529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14529] setpgid(0, 0) = 0 [pid 14529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14529] write(3, "1000", 4) = 4 [pid 14529] close(3) = 0 [pid 14529] memfd_create("syzkaller", 0) = 3 [pid 14529] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14529] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14529] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14529] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14529] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14529] ioctl(4, LOOP_CLR_FD) = 0 [pid 14529] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14529] close(4) = 0 [pid 14529] close(3) = 0 [pid 14529] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14529] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14529] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14529] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14529] open("./bus", O_RDONLY) = 3 [pid 14529] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14529] exit_group(0) = ? [pid 14529] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14529, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14530 ./strace-static-x86_64: Process 14530 attached [pid 14530] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14530] setpgid(0, 0) = 0 [pid 14530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14530] write(3, "1000", 4) = 4 [pid 14530] close(3) = 0 [pid 14530] memfd_create("syzkaller", 0) = 3 [pid 14530] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14530] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14530] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14530] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14530] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14530] ioctl(4, LOOP_CLR_FD) = 0 [pid 14530] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14530] close(4) = 0 [pid 14530] close(3) = 0 [pid 14530] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14530] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14530] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14530] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14530] open("./bus", O_RDONLY) = 3 [pid 14530] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14530] exit_group(0) = ? [pid 14530] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14530, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14531 attached , child_tidptr=0x5555575235d0) = 14531 [pid 14531] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14531] setpgid(0, 0) = 0 [pid 14531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14531] write(3, "1000", 4) = 4 [pid 14531] close(3) = 0 [pid 14531] memfd_create("syzkaller", 0) = 3 [pid 14531] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14531] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14531] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14531] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14531] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14531] ioctl(4, LOOP_CLR_FD) = 0 [pid 14531] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14531] close(4) = 0 [pid 14531] close(3) = 0 [pid 14531] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14531] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14531] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14531] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14531] open("./bus", O_RDONLY) = 3 [pid 14531] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14531] exit_group(0) = ? [pid 14531] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14531, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14532 ./strace-static-x86_64: Process 14532 attached [pid 14532] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14532] setpgid(0, 0) = 0 [pid 14532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14532] write(3, "1000", 4) = 4 [pid 14532] close(3) = 0 [pid 14532] memfd_create("syzkaller", 0) = 3 [pid 14532] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14532] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14532] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14532] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14532] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14532] ioctl(4, LOOP_CLR_FD) = 0 [pid 14532] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14532] close(4) = 0 [pid 14532] close(3) = 0 [pid 14532] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14532] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14532] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14532] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14532] open("./bus", O_RDONLY) = 3 [pid 14532] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14532] exit_group(0) = ? [pid 14532] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14532, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14533 ./strace-static-x86_64: Process 14533 attached [pid 14533] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14533] setpgid(0, 0) = 0 [pid 14533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14533] write(3, "1000", 4) = 4 [pid 14533] close(3) = 0 [pid 14533] memfd_create("syzkaller", 0) = 3 [pid 14533] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14533] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14533] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14533] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14533] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14533] ioctl(4, LOOP_CLR_FD) = 0 [pid 14533] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14533] close(4) = 0 [pid 14533] close(3) = 0 [pid 14533] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14533] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14533] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14533] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14533] open("./bus", O_RDONLY) = 3 [pid 14533] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14533] exit_group(0) = ? [pid 14533] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14533, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14534 ./strace-static-x86_64: Process 14534 attached [pid 14534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14534] setpgid(0, 0) = 0 [pid 14534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14534] write(3, "1000", 4) = 4 [pid 14534] close(3) = 0 [pid 14534] memfd_create("syzkaller", 0) = 3 [pid 14534] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14534] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14534] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14534] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14534] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14534] ioctl(4, LOOP_CLR_FD) = 0 [pid 14534] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14534] close(4) = 0 [pid 14534] close(3) = 0 [pid 14534] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14534] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14534] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14534] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14534] open("./bus", O_RDONLY) = 3 [pid 14534] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14534] exit_group(0) = ? [pid 14534] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14534, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14535 attached , child_tidptr=0x5555575235d0) = 14535 [pid 14535] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14535] setpgid(0, 0) = 0 [pid 14535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14535] write(3, "1000", 4) = 4 [pid 14535] close(3) = 0 [pid 14535] memfd_create("syzkaller", 0) = 3 [pid 14535] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14535] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14535] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14535] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14535] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14535] ioctl(4, LOOP_CLR_FD) = 0 [pid 14535] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14535] close(4) = 0 [pid 14535] close(3) = 0 [pid 14535] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14535] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14535] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14535] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14535] open("./bus", O_RDONLY) = 3 [pid 14535] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14535] exit_group(0) = ? [pid 14535] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14535, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14536 attached , child_tidptr=0x5555575235d0) = 14536 [pid 14536] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14536] setpgid(0, 0) = 0 [pid 14536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14536] write(3, "1000", 4) = 4 [pid 14536] close(3) = 0 [pid 14536] memfd_create("syzkaller", 0) = 3 [pid 14536] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14536] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14536] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14536] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14536] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14536] ioctl(4, LOOP_CLR_FD) = 0 [pid 14536] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14536] close(4) = 0 [pid 14536] close(3) = 0 [pid 14536] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14536] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14536] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14536] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14536] open("./bus", O_RDONLY) = 3 [pid 14536] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14536] exit_group(0) = ? [pid 14536] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14536, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14537 ./strace-static-x86_64: Process 14537 attached [pid 14537] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14537] setpgid(0, 0) = 0 [pid 14537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14537] write(3, "1000", 4) = 4 [pid 14537] close(3) = 0 [pid 14537] memfd_create("syzkaller", 0) = 3 [pid 14537] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14537] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14537] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14537] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14537] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14537] ioctl(4, LOOP_CLR_FD) = 0 [pid 14537] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14537] close(4) = 0 [pid 14537] close(3) = 0 [pid 14537] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14537] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14537] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14537] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14537] open("./bus", O_RDONLY) = 3 [pid 14537] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14537] exit_group(0) = ? [pid 14537] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14537, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14538 ./strace-static-x86_64: Process 14538 attached [pid 14538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14538] setpgid(0, 0) = 0 [pid 14538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14538] write(3, "1000", 4) = 4 [pid 14538] close(3) = 0 [pid 14538] memfd_create("syzkaller", 0) = 3 [pid 14538] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14538] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14538] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14538] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14538] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14538] ioctl(4, LOOP_CLR_FD) = 0 [pid 14538] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14538] close(4) = 0 [pid 14538] close(3) = 0 [pid 14538] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14538] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14538] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14538] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14538] open("./bus", O_RDONLY) = 3 [pid 14538] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14538] exit_group(0) = ? [pid 14538] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14538, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14539 ./strace-static-x86_64: Process 14539 attached [pid 14539] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14539] setpgid(0, 0) = 0 [pid 14539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14539] write(3, "1000", 4) = 4 [pid 14539] close(3) = 0 [pid 14539] memfd_create("syzkaller", 0) = 3 [pid 14539] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14539] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14539] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14539] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14539] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14539] ioctl(4, LOOP_CLR_FD) = 0 [pid 14539] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14539] close(4) = 0 [pid 14539] close(3) = 0 [pid 14539] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14539] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14539] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14539] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14539] open("./bus", O_RDONLY) = 3 [pid 14539] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14539] exit_group(0) = ? [pid 14539] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14539, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14540 ./strace-static-x86_64: Process 14540 attached [pid 14540] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14540] setpgid(0, 0) = 0 [pid 14540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14540] write(3, "1000", 4) = 4 [pid 14540] close(3) = 0 [pid 14540] memfd_create("syzkaller", 0) = 3 [pid 14540] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14540] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14540] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14540] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14540] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14540] ioctl(4, LOOP_CLR_FD) = 0 [pid 14540] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14540] close(4) = 0 [pid 14540] close(3) = 0 [pid 14540] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14540] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14540] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14540] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14540] open("./bus", O_RDONLY) = 3 [pid 14540] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14540] exit_group(0) = ? [pid 14540] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14540, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14541 ./strace-static-x86_64: Process 14541 attached [pid 14541] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14541] setpgid(0, 0) = 0 [pid 14541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14541] write(3, "1000", 4) = 4 [pid 14541] close(3) = 0 [pid 14541] memfd_create("syzkaller", 0) = 3 [pid 14541] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14541] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14541] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14541] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14541] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14541] ioctl(4, LOOP_CLR_FD) = 0 [pid 14541] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14541] close(4) = 0 [pid 14541] close(3) = 0 [pid 14541] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14541] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14541] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14541] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14541] open("./bus", O_RDONLY) = 3 [pid 14541] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14541] exit_group(0) = ? [pid 14541] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14541, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14542 ./strace-static-x86_64: Process 14542 attached [pid 14542] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14542] setpgid(0, 0) = 0 [pid 14542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14542] write(3, "1000", 4) = 4 [pid 14542] close(3) = 0 [pid 14542] memfd_create("syzkaller", 0) = 3 [pid 14542] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14542] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14542] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14542] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14542] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14542] ioctl(4, LOOP_CLR_FD) = 0 [pid 14542] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14542] close(4) = 0 [pid 14542] close(3) = 0 [pid 14542] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14542] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14542] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14542] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14542] open("./bus", O_RDONLY) = 3 [pid 14542] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14542] exit_group(0) = ? [pid 14542] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14542, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14543 attached , child_tidptr=0x5555575235d0) = 14543 [pid 14543] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14543] setpgid(0, 0) = 0 [pid 14543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14543] write(3, "1000", 4) = 4 [pid 14543] close(3) = 0 [pid 14543] memfd_create("syzkaller", 0) = 3 [pid 14543] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14543] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14543] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14543] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14543] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14543] ioctl(4, LOOP_CLR_FD) = 0 [pid 14543] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14543] close(4) = 0 [pid 14543] close(3) = 0 [pid 14543] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14543] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14543] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14543] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14543] open("./bus", O_RDONLY) = 3 [pid 14543] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14543] exit_group(0) = ? [pid 14543] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14543, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14544 attached , child_tidptr=0x5555575235d0) = 14544 [pid 14544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14544] setpgid(0, 0) = 0 [pid 14544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14544] write(3, "1000", 4) = 4 [pid 14544] close(3) = 0 [pid 14544] memfd_create("syzkaller", 0) = 3 [pid 14544] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14544] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14544] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14544] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14544] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14544] ioctl(4, LOOP_CLR_FD) = 0 [pid 14544] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14544] close(4) = 0 [pid 14544] close(3) = 0 [pid 14544] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14544] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14544] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14544] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14544] open("./bus", O_RDONLY) = 3 [pid 14544] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14544] exit_group(0) = ? [pid 14544] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14544, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14545 ./strace-static-x86_64: Process 14545 attached [pid 14545] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14545] setpgid(0, 0) = 0 [pid 14545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14545] write(3, "1000", 4) = 4 [pid 14545] close(3) = 0 [pid 14545] memfd_create("syzkaller", 0) = 3 [pid 14545] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14545] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14545] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14545] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14545] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14545] ioctl(4, LOOP_CLR_FD) = 0 [pid 14545] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14545] close(4) = 0 [pid 14545] close(3) = 0 [pid 14545] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14545] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14545] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14545] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14545] open("./bus", O_RDONLY) = 3 [pid 14545] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14545] exit_group(0) = ? [pid 14545] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14545, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14546 ./strace-static-x86_64: Process 14546 attached [pid 14546] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14546] setpgid(0, 0) = 0 [pid 14546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14546] write(3, "1000", 4) = 4 [pid 14546] close(3) = 0 [pid 14546] memfd_create("syzkaller", 0) = 3 [pid 14546] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14546] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14546] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14546] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14546] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14546] ioctl(4, LOOP_CLR_FD) = 0 [pid 14546] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14546] close(4) = 0 [pid 14546] close(3) = 0 [pid 14546] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14546] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14546] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14546] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14546] open("./bus", O_RDONLY) = 3 [pid 14546] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14546] exit_group(0) = ? [pid 14546] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14546, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14547 ./strace-static-x86_64: Process 14547 attached [pid 14547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14547] setpgid(0, 0) = 0 [pid 14547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14547] write(3, "1000", 4) = 4 [pid 14547] close(3) = 0 [pid 14547] memfd_create("syzkaller", 0) = 3 [pid 14547] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14547] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14547] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14547] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14547] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14547] ioctl(4, LOOP_CLR_FD) = 0 [pid 14547] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14547] close(4) = 0 [pid 14547] close(3) = 0 [pid 14547] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14547] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14547] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14547] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14547] open("./bus", O_RDONLY) = 3 [pid 14547] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14547] exit_group(0) = ? [pid 14547] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14547, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14548 attached , child_tidptr=0x5555575235d0) = 14548 [pid 14548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14548] setpgid(0, 0) = 0 [pid 14548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14548] write(3, "1000", 4) = 4 [pid 14548] close(3) = 0 [pid 14548] memfd_create("syzkaller", 0) = 3 [pid 14548] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14548] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14548] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14548] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14548] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14548] ioctl(4, LOOP_CLR_FD) = 0 [pid 14548] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14548] close(4) = 0 [pid 14548] close(3) = 0 [pid 14548] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14548] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14548] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14548] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14548] open("./bus", O_RDONLY) = 3 [pid 14548] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14548] exit_group(0) = ? [pid 14548] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14548, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14549 attached , child_tidptr=0x5555575235d0) = 14549 [pid 14549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14549] setpgid(0, 0) = 0 [pid 14549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14549] write(3, "1000", 4) = 4 [pid 14549] close(3) = 0 [pid 14549] memfd_create("syzkaller", 0) = 3 [pid 14549] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14549] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14549] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14549] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14549] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14549] ioctl(4, LOOP_CLR_FD) = 0 [pid 14549] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14549] close(4) = 0 [pid 14549] close(3) = 0 [pid 14549] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14549] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14549] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14549] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14549] open("./bus", O_RDONLY) = 3 [pid 14549] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14549] exit_group(0) = ? [pid 14549] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14549, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14550 ./strace-static-x86_64: Process 14550 attached [pid 14550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14550] setpgid(0, 0) = 0 [pid 14550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14550] write(3, "1000", 4) = 4 [pid 14550] close(3) = 0 [pid 14550] memfd_create("syzkaller", 0) = 3 [pid 14550] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14550] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14550] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14550] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14550] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14550] ioctl(4, LOOP_CLR_FD) = 0 [pid 14550] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14550] close(4) = 0 [pid 14550] close(3) = 0 [pid 14550] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14550] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14550] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14550] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14550] open("./bus", O_RDONLY) = 3 [pid 14550] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14550] exit_group(0) = ? [pid 14550] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14550, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14551 ./strace-static-x86_64: Process 14551 attached [pid 14551] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14551] setpgid(0, 0) = 0 [pid 14551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14551] write(3, "1000", 4) = 4 [pid 14551] close(3) = 0 [pid 14551] memfd_create("syzkaller", 0) = 3 [pid 14551] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14551] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14551] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14551] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14551] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14551] ioctl(4, LOOP_CLR_FD) = 0 [pid 14551] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14551] close(4) = 0 [pid 14551] close(3) = 0 [pid 14551] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14551] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14551] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14551] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14551] open("./bus", O_RDONLY) = 3 [pid 14551] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14551] exit_group(0) = ? [pid 14551] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14551, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14552 ./strace-static-x86_64: Process 14552 attached [pid 14552] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14552] setpgid(0, 0) = 0 [pid 14552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14552] write(3, "1000", 4) = 4 [pid 14552] close(3) = 0 [pid 14552] memfd_create("syzkaller", 0) = 3 [pid 14552] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14552] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14552] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14552] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14552] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14552] ioctl(4, LOOP_CLR_FD) = 0 [pid 14552] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14552] close(4) = 0 [pid 14552] close(3) = 0 [pid 14552] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14552] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14552] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14552] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14552] open("./bus", O_RDONLY) = 3 [pid 14552] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14552] exit_group(0) = ? [pid 14552] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14552, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14553 ./strace-static-x86_64: Process 14553 attached [pid 14553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14553] setpgid(0, 0) = 0 [pid 14553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14553] write(3, "1000", 4) = 4 [pid 14553] close(3) = 0 [pid 14553] memfd_create("syzkaller", 0) = 3 [pid 14553] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14553] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14553] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14553] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14553] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14553] ioctl(4, LOOP_CLR_FD) = 0 [pid 14553] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14553] close(4) = 0 [pid 14553] close(3) = 0 [pid 14553] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14553] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14553] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14553] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14553] open("./bus", O_RDONLY) = 3 [pid 14553] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14553] exit_group(0) = ? [pid 14553] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14553, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14554 ./strace-static-x86_64: Process 14554 attached [pid 14554] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14554] setpgid(0, 0) = 0 [pid 14554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14554] write(3, "1000", 4) = 4 [pid 14554] close(3) = 0 [pid 14554] memfd_create("syzkaller", 0) = 3 [pid 14554] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14554] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14554] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14554] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14554] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14554] ioctl(4, LOOP_CLR_FD) = 0 [pid 14554] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14554] close(4) = 0 [pid 14554] close(3) = 0 [pid 14554] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14554] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14554] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14554] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14554] open("./bus", O_RDONLY) = 3 [pid 14554] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14554] exit_group(0) = ? [pid 14554] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14554, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14555 ./strace-static-x86_64: Process 14555 attached [pid 14555] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14555] setpgid(0, 0) = 0 [pid 14555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14555] write(3, "1000", 4) = 4 [pid 14555] close(3) = 0 [pid 14555] memfd_create("syzkaller", 0) = 3 [pid 14555] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14555] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14555] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14555] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14555] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14555] ioctl(4, LOOP_CLR_FD) = 0 [pid 14555] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14555] close(4) = 0 [pid 14555] close(3) = 0 [pid 14555] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14555] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14555] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14555] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14555] open("./bus", O_RDONLY) = 3 [pid 14555] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14555] exit_group(0) = ? [pid 14555] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14555, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14556 ./strace-static-x86_64: Process 14556 attached [pid 14556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14556] setpgid(0, 0) = 0 [pid 14556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14556] write(3, "1000", 4) = 4 [pid 14556] close(3) = 0 [pid 14556] memfd_create("syzkaller", 0) = 3 [pid 14556] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14556] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14556] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14556] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14556] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14556] ioctl(4, LOOP_CLR_FD) = 0 [pid 14556] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14556] close(4) = 0 [pid 14556] close(3) = 0 [pid 14556] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14556] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14556] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14556] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14556] open("./bus", O_RDONLY) = 3 [pid 14556] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14556] exit_group(0) = ? [pid 14556] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14556, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14557 ./strace-static-x86_64: Process 14557 attached [pid 14557] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14557] setpgid(0, 0) = 0 [pid 14557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14557] write(3, "1000", 4) = 4 [pid 14557] close(3) = 0 [pid 14557] memfd_create("syzkaller", 0) = 3 [pid 14557] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14557] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14557] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14557] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14557] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14557] ioctl(4, LOOP_CLR_FD) = 0 [pid 14557] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14557] close(4) = 0 [pid 14557] close(3) = 0 [pid 14557] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14557] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14557] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14557] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14557] open("./bus", O_RDONLY) = 3 [pid 14557] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14557] exit_group(0) = ? [pid 14557] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14557, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14558 ./strace-static-x86_64: Process 14558 attached [pid 14558] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14558] setpgid(0, 0) = 0 [pid 14558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14558] write(3, "1000", 4) = 4 [pid 14558] close(3) = 0 [pid 14558] memfd_create("syzkaller", 0) = 3 [pid 14558] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14558] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14558] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14558] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14558] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14558] ioctl(4, LOOP_CLR_FD) = 0 [pid 14558] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14558] close(4) = 0 [pid 14558] close(3) = 0 [pid 14558] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14558] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14558] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14558] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14558] open("./bus", O_RDONLY) = 3 [pid 14558] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14558] exit_group(0) = ? [pid 14558] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14558, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14559 attached , child_tidptr=0x5555575235d0) = 14559 [pid 14559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14559] setpgid(0, 0) = 0 [pid 14559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14559] write(3, "1000", 4) = 4 [pid 14559] close(3) = 0 [pid 14559] memfd_create("syzkaller", 0) = 3 [pid 14559] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14559] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14559] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14559] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14559] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14559] ioctl(4, LOOP_CLR_FD) = 0 [pid 14559] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14559] close(4) = 0 [pid 14559] close(3) = 0 [pid 14559] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14559] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14559] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14559] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14559] open("./bus", O_RDONLY) = 3 [pid 14559] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14559] exit_group(0) = ? [pid 14559] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14559, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14560 attached , child_tidptr=0x5555575235d0) = 14560 [pid 14560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14560] setpgid(0, 0) = 0 [pid 14560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14560] write(3, "1000", 4) = 4 [pid 14560] close(3) = 0 [pid 14560] memfd_create("syzkaller", 0) = 3 [pid 14560] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14560] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14560] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14560] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14560] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14560] ioctl(4, LOOP_CLR_FD) = 0 [pid 14560] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14560] close(4) = 0 [pid 14560] close(3) = 0 [pid 14560] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14560] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14560] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14560] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14560] open("./bus", O_RDONLY) = 3 [pid 14560] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14560] exit_group(0) = ? [pid 14560] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14560, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14561 attached , child_tidptr=0x5555575235d0) = 14561 [pid 14561] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14561] setpgid(0, 0) = 0 [pid 14561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14561] write(3, "1000", 4) = 4 [pid 14561] close(3) = 0 [pid 14561] memfd_create("syzkaller", 0) = 3 [pid 14561] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14561] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14561] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14561] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14561] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14561] ioctl(4, LOOP_CLR_FD) = 0 [pid 14561] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14561] close(4) = 0 [pid 14561] close(3) = 0 [pid 14561] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14561] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14561] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14561] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14561] open("./bus", O_RDONLY) = 3 [pid 14561] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14561] exit_group(0) = ? [pid 14561] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14561, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14562 ./strace-static-x86_64: Process 14562 attached [pid 14562] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14562] setpgid(0, 0) = 0 [pid 14562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14562] write(3, "1000", 4) = 4 [pid 14562] close(3) = 0 [pid 14562] memfd_create("syzkaller", 0) = 3 [pid 14562] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14562] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14562] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14562] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14562] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14562] ioctl(4, LOOP_CLR_FD) = 0 [pid 14562] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14562] close(4) = 0 [pid 14562] close(3) = 0 [pid 14562] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14562] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14562] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14562] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14562] open("./bus", O_RDONLY) = 3 [pid 14562] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14562] exit_group(0) = ? [pid 14562] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14562, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14563 attached , child_tidptr=0x5555575235d0) = 14563 [pid 14563] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14563] setpgid(0, 0) = 0 [pid 14563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14563] write(3, "1000", 4) = 4 [pid 14563] close(3) = 0 [pid 14563] memfd_create("syzkaller", 0) = 3 [pid 14563] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14563] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14563] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14563] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14563] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14563] ioctl(4, LOOP_CLR_FD) = 0 [pid 14563] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14563] close(4) = 0 [pid 14563] close(3) = 0 [pid 14563] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14563] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14563] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14563] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14563] open("./bus", O_RDONLY) = 3 [pid 14563] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14563] exit_group(0) = ? [pid 14563] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14563, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14564 attached , child_tidptr=0x5555575235d0) = 14564 [pid 14564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14564] setpgid(0, 0) = 0 [pid 14564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14564] write(3, "1000", 4) = 4 [pid 14564] close(3) = 0 [pid 14564] memfd_create("syzkaller", 0) = 3 [pid 14564] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14564] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14564] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14564] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14564] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14564] ioctl(4, LOOP_CLR_FD) = 0 [pid 14564] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14564] close(4) = 0 [pid 14564] close(3) = 0 [pid 14564] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14564] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14564] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14564] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14564] open("./bus", O_RDONLY) = 3 [pid 14564] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14564] exit_group(0) = ? [pid 14564] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14564, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14565 attached , child_tidptr=0x5555575235d0) = 14565 [pid 14565] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14565] setpgid(0, 0) = 0 [pid 14565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14565] write(3, "1000", 4) = 4 [pid 14565] close(3) = 0 [pid 14565] memfd_create("syzkaller", 0) = 3 [pid 14565] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14565] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14565] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14565] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14565] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14565] ioctl(4, LOOP_CLR_FD) = 0 [pid 14565] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14565] close(4) = 0 [pid 14565] close(3) = 0 [pid 14565] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14565] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14565] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14565] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14565] open("./bus", O_RDONLY) = 3 [pid 14565] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14565] exit_group(0) = ? [pid 14565] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14565, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14566 ./strace-static-x86_64: Process 14566 attached [pid 14566] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14566] setpgid(0, 0) = 0 [pid 14566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14566] write(3, "1000", 4) = 4 [pid 14566] close(3) = 0 [pid 14566] memfd_create("syzkaller", 0) = 3 [pid 14566] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14566] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14566] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14566] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14566] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14566] ioctl(4, LOOP_CLR_FD) = 0 [pid 14566] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14566] close(4) = 0 [pid 14566] close(3) = 0 [pid 14566] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14566] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14566] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14566] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14566] open("./bus", O_RDONLY) = 3 [pid 14566] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14566] exit_group(0) = ? [pid 14566] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14566, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14567 ./strace-static-x86_64: Process 14567 attached [pid 14567] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14567] setpgid(0, 0) = 0 [pid 14567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14567] write(3, "1000", 4) = 4 [pid 14567] close(3) = 0 [pid 14567] memfd_create("syzkaller", 0) = 3 [pid 14567] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14567] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14567] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14567] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14567] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14567] ioctl(4, LOOP_CLR_FD) = 0 [pid 14567] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14567] close(4) = 0 [pid 14567] close(3) = 0 [pid 14567] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14567] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14567] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14567] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14567] open("./bus", O_RDONLY) = 3 [pid 14567] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14567] exit_group(0) = ? [pid 14567] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14567, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14568 attached , child_tidptr=0x5555575235d0) = 14568 [pid 14568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14568] setpgid(0, 0) = 0 [pid 14568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14568] write(3, "1000", 4) = 4 [pid 14568] close(3) = 0 [pid 14568] memfd_create("syzkaller", 0) = 3 [pid 14568] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14568] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14568] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14568] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14568] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14568] ioctl(4, LOOP_CLR_FD) = 0 [pid 14568] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14568] close(4) = 0 [pid 14568] close(3) = 0 [pid 14568] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14568] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14568] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14568] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14568] open("./bus", O_RDONLY) = 3 [pid 14568] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14568] exit_group(0) = ? [pid 14568] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14568, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14569 ./strace-static-x86_64: Process 14569 attached [pid 14569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14569] setpgid(0, 0) = 0 [pid 14569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14569] write(3, "1000", 4) = 4 [pid 14569] close(3) = 0 [pid 14569] memfd_create("syzkaller", 0) = 3 [pid 14569] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14569] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14569] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14569] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14569] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14569] ioctl(4, LOOP_CLR_FD) = 0 [pid 14569] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14569] close(4) = 0 [pid 14569] close(3) = 0 [pid 14569] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14569] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14569] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14569] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14569] open("./bus", O_RDONLY) = 3 [pid 14569] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14569] exit_group(0) = ? [pid 14569] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14569, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14570 attached , child_tidptr=0x5555575235d0) = 14570 [pid 14570] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14570] setpgid(0, 0) = 0 [pid 14570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14570] write(3, "1000", 4) = 4 [pid 14570] close(3) = 0 [pid 14570] memfd_create("syzkaller", 0) = 3 [pid 14570] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14570] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14570] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14570] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14570] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14570] ioctl(4, LOOP_CLR_FD) = 0 [pid 14570] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14570] close(4) = 0 [pid 14570] close(3) = 0 [pid 14570] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14570] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14570] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14570] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14570] open("./bus", O_RDONLY) = 3 [pid 14570] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14570] exit_group(0) = ? [pid 14570] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14570, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14571 attached , child_tidptr=0x5555575235d0) = 14571 [pid 14571] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14571] setpgid(0, 0) = 0 [pid 14571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14571] write(3, "1000", 4) = 4 [pid 14571] close(3) = 0 [pid 14571] memfd_create("syzkaller", 0) = 3 [pid 14571] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14571] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14571] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14571] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14571] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14571] ioctl(4, LOOP_CLR_FD) = 0 [pid 14571] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14571] close(4) = 0 [pid 14571] close(3) = 0 [pid 14571] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14571] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14571] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14571] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14571] open("./bus", O_RDONLY) = 3 [pid 14571] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14571] exit_group(0) = ? [pid 14571] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14571, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14572 ./strace-static-x86_64: Process 14572 attached [pid 14572] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14572] setpgid(0, 0) = 0 [pid 14572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14572] write(3, "1000", 4) = 4 [pid 14572] close(3) = 0 [pid 14572] memfd_create("syzkaller", 0) = 3 [pid 14572] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14572] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14572] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14572] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14572] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14572] ioctl(4, LOOP_CLR_FD) = 0 [pid 14572] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14572] close(4) = 0 [pid 14572] close(3) = 0 [pid 14572] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14572] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14572] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14572] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14572] open("./bus", O_RDONLY) = 3 [pid 14572] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14572] exit_group(0) = ? [pid 14572] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14572, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14573 attached , child_tidptr=0x5555575235d0) = 14573 [pid 14573] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14573] setpgid(0, 0) = 0 [pid 14573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14573] write(3, "1000", 4) = 4 [pid 14573] close(3) = 0 [pid 14573] memfd_create("syzkaller", 0) = 3 [pid 14573] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14573] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14573] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14573] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14573] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14573] ioctl(4, LOOP_CLR_FD) = 0 [pid 14573] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14573] close(4) = 0 [pid 14573] close(3) = 0 [pid 14573] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14573] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14573] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14573] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14573] open("./bus", O_RDONLY) = 3 [pid 14573] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14573] exit_group(0) = ? [pid 14573] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14573, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14574 ./strace-static-x86_64: Process 14574 attached [pid 14574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14574] setpgid(0, 0) = 0 [pid 14574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14574] write(3, "1000", 4) = 4 [pid 14574] close(3) = 0 [pid 14574] memfd_create("syzkaller", 0) = 3 [pid 14574] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14574] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14574] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14574] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14574] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14574] ioctl(4, LOOP_CLR_FD) = 0 [pid 14574] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14574] close(4) = 0 [pid 14574] close(3) = 0 [pid 14574] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14574] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14574] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14574] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14574] open("./bus", O_RDONLY) = 3 [pid 14574] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14574] exit_group(0) = ? [pid 14574] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14574, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14575 ./strace-static-x86_64: Process 14575 attached [pid 14575] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14575] setpgid(0, 0) = 0 [pid 14575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14575] write(3, "1000", 4) = 4 [pid 14575] close(3) = 0 [pid 14575] memfd_create("syzkaller", 0) = 3 [pid 14575] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14575] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14575] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14575] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14575] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14575] ioctl(4, LOOP_CLR_FD) = 0 [pid 14575] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14575] close(4) = 0 [pid 14575] close(3) = 0 [pid 14575] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14575] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14575] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14575] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14575] open("./bus", O_RDONLY) = 3 [pid 14575] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14575] exit_group(0) = ? [pid 14575] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14575, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14576 ./strace-static-x86_64: Process 14576 attached [pid 14576] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14576] setpgid(0, 0) = 0 [pid 14576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14576] write(3, "1000", 4) = 4 [pid 14576] close(3) = 0 [pid 14576] memfd_create("syzkaller", 0) = 3 [pid 14576] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14576] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14576] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14576] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14576] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14576] ioctl(4, LOOP_CLR_FD) = 0 [pid 14576] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14576] close(4) = 0 [pid 14576] close(3) = 0 [pid 14576] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14576] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14576] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14576] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14576] open("./bus", O_RDONLY) = 3 [pid 14576] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14576] exit_group(0) = ? [pid 14576] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14576, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14577 ./strace-static-x86_64: Process 14577 attached [pid 14577] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14577] setpgid(0, 0) = 0 [pid 14577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14577] write(3, "1000", 4) = 4 [pid 14577] close(3) = 0 [pid 14577] memfd_create("syzkaller", 0) = 3 [pid 14577] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14577] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14577] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14577] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14577] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14577] ioctl(4, LOOP_CLR_FD) = 0 [pid 14577] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14577] close(4) = 0 [pid 14577] close(3) = 0 [pid 14577] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14577] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14577] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14577] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14577] open("./bus", O_RDONLY) = 3 [pid 14577] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14577] exit_group(0) = ? [pid 14577] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14577, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14578 ./strace-static-x86_64: Process 14578 attached [pid 14578] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14578] setpgid(0, 0) = 0 [pid 14578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14578] write(3, "1000", 4) = 4 [pid 14578] close(3) = 0 [pid 14578] memfd_create("syzkaller", 0) = 3 [pid 14578] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14578] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14578] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14578] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14578] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14578] ioctl(4, LOOP_CLR_FD) = 0 [pid 14578] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14578] close(4) = 0 [pid 14578] close(3) = 0 [pid 14578] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14578] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14578] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14578] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14578] open("./bus", O_RDONLY) = 3 [pid 14578] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14578] exit_group(0) = ? [pid 14578] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14578, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14579 ./strace-static-x86_64: Process 14579 attached [pid 14579] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14579] setpgid(0, 0) = 0 [pid 14579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14579] write(3, "1000", 4) = 4 [pid 14579] close(3) = 0 [pid 14579] memfd_create("syzkaller", 0) = 3 [pid 14579] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14579] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14579] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14579] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14579] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14579] ioctl(4, LOOP_CLR_FD) = 0 [pid 14579] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14579] close(4) = 0 [pid 14579] close(3) = 0 [pid 14579] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14579] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14579] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14579] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14579] open("./bus", O_RDONLY) = 3 [pid 14579] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14579] exit_group(0) = ? [pid 14579] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14579, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14580 ./strace-static-x86_64: Process 14580 attached [pid 14580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14580] setpgid(0, 0) = 0 [pid 14580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14580] write(3, "1000", 4) = 4 [pid 14580] close(3) = 0 [pid 14580] memfd_create("syzkaller", 0) = 3 [pid 14580] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14580] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14580] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14580] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14580] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14580] ioctl(4, LOOP_CLR_FD) = 0 [pid 14580] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14580] close(4) = 0 [pid 14580] close(3) = 0 [pid 14580] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14580] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14580] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14580] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14580] open("./bus", O_RDONLY) = 3 [pid 14580] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14580] exit_group(0) = ? [pid 14580] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14580, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14581 ./strace-static-x86_64: Process 14581 attached [pid 14581] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14581] setpgid(0, 0) = 0 [pid 14581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14581] write(3, "1000", 4) = 4 [pid 14581] close(3) = 0 [pid 14581] memfd_create("syzkaller", 0) = 3 [pid 14581] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14581] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14581] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14581] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14581] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14581] ioctl(4, LOOP_CLR_FD) = 0 [pid 14581] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14581] close(4) = 0 [pid 14581] close(3) = 0 [pid 14581] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14581] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14581] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14581] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14581] open("./bus", O_RDONLY) = 3 [pid 14581] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14581] exit_group(0) = ? [pid 14581] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14581, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14582 ./strace-static-x86_64: Process 14582 attached [pid 14582] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14582] setpgid(0, 0) = 0 [pid 14582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14582] write(3, "1000", 4) = 4 [pid 14582] close(3) = 0 [pid 14582] memfd_create("syzkaller", 0) = 3 [pid 14582] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14582] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14582] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14582] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14582] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14582] ioctl(4, LOOP_CLR_FD) = 0 [pid 14582] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14582] close(4) = 0 [pid 14582] close(3) = 0 [pid 14582] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14582] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14582] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14582] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14582] open("./bus", O_RDONLY) = 3 [pid 14582] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14582] exit_group(0) = ? [pid 14582] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14582, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14583 ./strace-static-x86_64: Process 14583 attached [pid 14583] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14583] setpgid(0, 0) = 0 [pid 14583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14583] write(3, "1000", 4) = 4 [pid 14583] close(3) = 0 [pid 14583] memfd_create("syzkaller", 0) = 3 [pid 14583] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14583] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14583] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14583] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14583] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14583] ioctl(4, LOOP_CLR_FD) = 0 [pid 14583] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14583] close(4) = 0 [pid 14583] close(3) = 0 [pid 14583] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14583] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14583] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14583] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14583] open("./bus", O_RDONLY) = 3 [pid 14583] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14583] exit_group(0) = ? [pid 14583] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14583, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14584 ./strace-static-x86_64: Process 14584 attached [pid 14584] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14584] setpgid(0, 0) = 0 [pid 14584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14584] write(3, "1000", 4) = 4 [pid 14584] close(3) = 0 [pid 14584] memfd_create("syzkaller", 0) = 3 [pid 14584] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14584] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14584] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14584] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14584] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14584] ioctl(4, LOOP_CLR_FD) = 0 [pid 14584] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14584] close(4) = 0 [pid 14584] close(3) = 0 [pid 14584] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14584] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14584] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14584] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14584] open("./bus", O_RDONLY) = 3 [pid 14584] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14584] exit_group(0) = ? [pid 14584] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14584, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14585 ./strace-static-x86_64: Process 14585 attached [pid 14585] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14585] setpgid(0, 0) = 0 [pid 14585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14585] write(3, "1000", 4) = 4 [pid 14585] close(3) = 0 [pid 14585] memfd_create("syzkaller", 0) = 3 [pid 14585] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14585] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14585] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14585] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14585] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14585] ioctl(4, LOOP_CLR_FD) = 0 [pid 14585] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14585] close(4) = 0 [pid 14585] close(3) = 0 [pid 14585] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14585] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14585] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14585] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14585] open("./bus", O_RDONLY) = 3 [pid 14585] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14585] exit_group(0) = ? [pid 14585] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14585, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14586 attached , child_tidptr=0x5555575235d0) = 14586 [pid 14586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14586] setpgid(0, 0) = 0 [pid 14586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14586] write(3, "1000", 4) = 4 [pid 14586] close(3) = 0 [pid 14586] memfd_create("syzkaller", 0) = 3 [pid 14586] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14586] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14586] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14586] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14586] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14586] ioctl(4, LOOP_CLR_FD) = 0 [pid 14586] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14586] close(4) = 0 [pid 14586] close(3) = 0 [pid 14586] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14586] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14586] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14586] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14586] open("./bus", O_RDONLY) = 3 [pid 14586] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14586] exit_group(0) = ? [pid 14586] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14586, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14587 attached , child_tidptr=0x5555575235d0) = 14587 [pid 14587] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14587] setpgid(0, 0) = 0 [pid 14587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14587] write(3, "1000", 4) = 4 [pid 14587] close(3) = 0 [pid 14587] memfd_create("syzkaller", 0) = 3 [pid 14587] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14587] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14587] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14587] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14587] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14587] ioctl(4, LOOP_CLR_FD) = 0 [pid 14587] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14587] close(4) = 0 [pid 14587] close(3) = 0 [pid 14587] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14587] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14587] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14587] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14587] open("./bus", O_RDONLY) = 3 [pid 14587] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14587] exit_group(0) = ? [pid 14587] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14587, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14588 ./strace-static-x86_64: Process 14588 attached [pid 14588] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14588] setpgid(0, 0) = 0 [pid 14588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14588] write(3, "1000", 4) = 4 [pid 14588] close(3) = 0 [pid 14588] memfd_create("syzkaller", 0) = 3 [pid 14588] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14588] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14588] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14588] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14588] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14588] ioctl(4, LOOP_CLR_FD) = 0 [pid 14588] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14588] close(4) = 0 [pid 14588] close(3) = 0 [pid 14588] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14588] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14588] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14588] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14588] open("./bus", O_RDONLY) = 3 [pid 14588] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14588] exit_group(0) = ? [pid 14588] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14588, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14589 ./strace-static-x86_64: Process 14589 attached [pid 14589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14589] setpgid(0, 0) = 0 [pid 14589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14589] write(3, "1000", 4) = 4 [pid 14589] close(3) = 0 [pid 14589] memfd_create("syzkaller", 0) = 3 [pid 14589] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14589] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14589] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14589] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14589] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14589] ioctl(4, LOOP_CLR_FD) = 0 [pid 14589] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14589] close(4) = 0 [pid 14589] close(3) = 0 [pid 14589] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14589] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14589] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14589] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14589] open("./bus", O_RDONLY) = 3 [pid 14589] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14589] exit_group(0) = ? [pid 14589] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14589, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14590 ./strace-static-x86_64: Process 14590 attached [pid 14590] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14590] setpgid(0, 0) = 0 [pid 14590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14590] write(3, "1000", 4) = 4 [pid 14590] close(3) = 0 [pid 14590] memfd_create("syzkaller", 0) = 3 [pid 14590] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14590] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14590] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14590] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14590] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14590] ioctl(4, LOOP_CLR_FD) = 0 [pid 14590] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14590] close(4) = 0 [pid 14590] close(3) = 0 [pid 14590] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14590] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14590] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14590] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14590] open("./bus", O_RDONLY) = 3 [pid 14590] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14590] exit_group(0) = ? [pid 14590] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14590, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14591 ./strace-static-x86_64: Process 14591 attached [pid 14591] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14591] setpgid(0, 0) = 0 [pid 14591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14591] write(3, "1000", 4) = 4 [pid 14591] close(3) = 0 [pid 14591] memfd_create("syzkaller", 0) = 3 [pid 14591] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14591] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14591] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14591] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14591] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14591] ioctl(4, LOOP_CLR_FD) = 0 [pid 14591] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14591] close(4) = 0 [pid 14591] close(3) = 0 [pid 14591] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14591] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14591] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14591] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14591] open("./bus", O_RDONLY) = 3 [pid 14591] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14591] exit_group(0) = ? [pid 14591] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14591, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14592 ./strace-static-x86_64: Process 14592 attached [pid 14592] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14592] setpgid(0, 0) = 0 [pid 14592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14592] write(3, "1000", 4) = 4 [pid 14592] close(3) = 0 [pid 14592] memfd_create("syzkaller", 0) = 3 [pid 14592] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14592] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14592] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14592] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14592] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14592] ioctl(4, LOOP_CLR_FD) = 0 [pid 14592] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14592] close(4) = 0 [pid 14592] close(3) = 0 [pid 14592] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14592] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14592] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14592] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14592] open("./bus", O_RDONLY) = 3 [pid 14592] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14592] exit_group(0) = ? [pid 14592] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14592, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14593 ./strace-static-x86_64: Process 14593 attached [pid 14593] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14593] setpgid(0, 0) = 0 [pid 14593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14593] write(3, "1000", 4) = 4 [pid 14593] close(3) = 0 [pid 14593] memfd_create("syzkaller", 0) = 3 [pid 14593] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14593] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14593] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14593] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14593] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14593] ioctl(4, LOOP_CLR_FD) = 0 [pid 14593] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14593] close(4) = 0 [pid 14593] close(3) = 0 [pid 14593] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14593] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14593] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14593] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14593] open("./bus", O_RDONLY) = 3 [pid 14593] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14593] exit_group(0) = ? [pid 14593] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14593, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14594 ./strace-static-x86_64: Process 14594 attached [pid 14594] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14594] setpgid(0, 0) = 0 [pid 14594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14594] write(3, "1000", 4) = 4 [pid 14594] close(3) = 0 [pid 14594] memfd_create("syzkaller", 0) = 3 [pid 14594] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14594] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14594] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14594] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14594] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14594] ioctl(4, LOOP_CLR_FD) = 0 [pid 14594] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14594] close(4) = 0 [pid 14594] close(3) = 0 [pid 14594] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14594] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14594] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14594] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14594] open("./bus", O_RDONLY) = 3 [pid 14594] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14594] exit_group(0) = ? [pid 14594] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14594, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14595 attached , child_tidptr=0x5555575235d0) = 14595 [pid 14595] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14595] setpgid(0, 0) = 0 [pid 14595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14595] write(3, "1000", 4) = 4 [pid 14595] close(3) = 0 [pid 14595] memfd_create("syzkaller", 0) = 3 [pid 14595] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14595] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14595] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14595] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14595] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14595] ioctl(4, LOOP_CLR_FD) = 0 [pid 14595] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14595] close(4) = 0 [pid 14595] close(3) = 0 [pid 14595] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14595] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14595] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14595] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14595] open("./bus", O_RDONLY) = 3 [pid 14595] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14595] exit_group(0) = ? [pid 14595] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14595, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14596 ./strace-static-x86_64: Process 14596 attached [pid 14596] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14596] setpgid(0, 0) = 0 [pid 14596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14596] write(3, "1000", 4) = 4 [pid 14596] close(3) = 0 [pid 14596] memfd_create("syzkaller", 0) = 3 [pid 14596] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14596] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14596] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14596] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14596] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14596] ioctl(4, LOOP_CLR_FD) = 0 [pid 14596] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14596] close(4) = 0 [pid 14596] close(3) = 0 [pid 14596] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14596] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14596] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14596] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14596] open("./bus", O_RDONLY) = 3 [pid 14596] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14596] exit_group(0) = ? [pid 14596] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14596, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14597 attached , child_tidptr=0x5555575235d0) = 14597 [pid 14597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14597] setpgid(0, 0) = 0 [pid 14597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14597] write(3, "1000", 4) = 4 [pid 14597] close(3) = 0 [pid 14597] memfd_create("syzkaller", 0) = 3 [pid 14597] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14597] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14597] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14597] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14597] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14597] ioctl(4, LOOP_CLR_FD) = 0 [pid 14597] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14597] close(4) = 0 [pid 14597] close(3) = 0 [pid 14597] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14597] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14597] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14597] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14597] open("./bus", O_RDONLY) = 3 [pid 14597] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14597] exit_group(0) = ? [pid 14597] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14597, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14598 attached , child_tidptr=0x5555575235d0) = 14598 [pid 14598] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14598] setpgid(0, 0) = 0 [pid 14598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14598] write(3, "1000", 4) = 4 [pid 14598] close(3) = 0 [pid 14598] memfd_create("syzkaller", 0) = 3 [pid 14598] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14598] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14598] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14598] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14598] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14598] ioctl(4, LOOP_CLR_FD) = 0 [pid 14598] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14598] close(4) = 0 [pid 14598] close(3) = 0 [pid 14598] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14598] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14598] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14598] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14598] open("./bus", O_RDONLY) = 3 [pid 14598] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14598] exit_group(0) = ? [pid 14598] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14598, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14599 ./strace-static-x86_64: Process 14599 attached [pid 14599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14599] setpgid(0, 0) = 0 [pid 14599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14599] write(3, "1000", 4) = 4 [pid 14599] close(3) = 0 [pid 14599] memfd_create("syzkaller", 0) = 3 [pid 14599] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14599] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14599] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14599] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14599] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14599] ioctl(4, LOOP_CLR_FD) = 0 [pid 14599] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14599] close(4) = 0 [pid 14599] close(3) = 0 [pid 14599] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14599] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14599] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14599] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14599] open("./bus", O_RDONLY) = 3 [pid 14599] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14599] exit_group(0) = ? [pid 14599] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14599, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14600 ./strace-static-x86_64: Process 14600 attached [pid 14600] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14600] setpgid(0, 0) = 0 [pid 14600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14600] write(3, "1000", 4) = 4 [pid 14600] close(3) = 0 [pid 14600] memfd_create("syzkaller", 0) = 3 [pid 14600] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14600] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14600] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14600] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14600] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14600] ioctl(4, LOOP_CLR_FD) = 0 [pid 14600] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14600] close(4) = 0 [pid 14600] close(3) = 0 [pid 14600] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14600] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14600] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14600] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14600] open("./bus", O_RDONLY) = 3 [pid 14600] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14600] exit_group(0) = ? [pid 14600] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14600, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14601 ./strace-static-x86_64: Process 14601 attached [pid 14601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14601] setpgid(0, 0) = 0 [pid 14601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14601] write(3, "1000", 4) = 4 [pid 14601] close(3) = 0 [pid 14601] memfd_create("syzkaller", 0) = 3 [pid 14601] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14601] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14601] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14601] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14601] ioctl(4, LOOP_CLR_FD) = 0 [pid 14601] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14601] close(4) = 0 [pid 14601] close(3) = 0 [pid 14601] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14601] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14601] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14601] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14601] open("./bus", O_RDONLY) = 3 [pid 14601] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14601] exit_group(0) = ? [pid 14601] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14601, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14602 ./strace-static-x86_64: Process 14602 attached [pid 14602] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14602] setpgid(0, 0) = 0 [pid 14602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14602] write(3, "1000", 4) = 4 [pid 14602] close(3) = 0 [pid 14602] memfd_create("syzkaller", 0) = 3 [pid 14602] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14602] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14602] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14602] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14602] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14602] ioctl(4, LOOP_CLR_FD) = 0 [pid 14602] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14602] close(4) = 0 [pid 14602] close(3) = 0 [pid 14602] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14602] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14602] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14602] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14602] open("./bus", O_RDONLY) = 3 [pid 14602] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14602] exit_group(0) = ? [pid 14602] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14602, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14603 attached , child_tidptr=0x5555575235d0) = 14603 [pid 14603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14603] setpgid(0, 0) = 0 [pid 14603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14603] write(3, "1000", 4) = 4 [pid 14603] close(3) = 0 [pid 14603] memfd_create("syzkaller", 0) = 3 [pid 14603] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14603] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14603] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14603] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14603] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14603] ioctl(4, LOOP_CLR_FD) = 0 [pid 14603] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14603] close(4) = 0 [pid 14603] close(3) = 0 [pid 14603] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14603] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14603] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14603] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14603] open("./bus", O_RDONLY) = 3 [pid 14603] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14603] exit_group(0) = ? [pid 14603] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14603, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14604 ./strace-static-x86_64: Process 14604 attached [pid 14604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14604] setpgid(0, 0) = 0 [pid 14604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14604] write(3, "1000", 4) = 4 [pid 14604] close(3) = 0 [pid 14604] memfd_create("syzkaller", 0) = 3 [pid 14604] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14604] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14604] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14604] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14604] ioctl(4, LOOP_CLR_FD) = 0 [pid 14604] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14604] close(4) = 0 [pid 14604] close(3) = 0 [pid 14604] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14604] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14604] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14604] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14604] open("./bus", O_RDONLY) = 3 [pid 14604] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14604] exit_group(0) = ? [pid 14604] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14604, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14605 ./strace-static-x86_64: Process 14605 attached [pid 14605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14605] setpgid(0, 0) = 0 [pid 14605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14605] write(3, "1000", 4) = 4 [pid 14605] close(3) = 0 [pid 14605] memfd_create("syzkaller", 0) = 3 [pid 14605] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14605] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14605] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14605] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14605] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14605] ioctl(4, LOOP_CLR_FD) = 0 [pid 14605] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14605] close(4) = 0 [pid 14605] close(3) = 0 [pid 14605] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14605] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14605] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14605] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14605] open("./bus", O_RDONLY) = 3 [pid 14605] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14605] exit_group(0) = ? [pid 14605] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14605, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14606 ./strace-static-x86_64: Process 14606 attached [pid 14606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14606] setpgid(0, 0) = 0 [pid 14606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14606] write(3, "1000", 4) = 4 [pid 14606] close(3) = 0 [pid 14606] memfd_create("syzkaller", 0) = 3 [pid 14606] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14606] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14606] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14606] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14606] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14606] ioctl(4, LOOP_CLR_FD) = 0 [pid 14606] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14606] close(4) = 0 [pid 14606] close(3) = 0 [pid 14606] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14606] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14606] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14606] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14606] open("./bus", O_RDONLY) = 3 [pid 14606] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14606] exit_group(0) = ? [pid 14606] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14606, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14607 attached , child_tidptr=0x5555575235d0) = 14607 [pid 14607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14607] setpgid(0, 0) = 0 [pid 14607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14607] write(3, "1000", 4) = 4 [pid 14607] close(3) = 0 [pid 14607] memfd_create("syzkaller", 0) = 3 [pid 14607] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14607] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14607] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14607] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14607] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14607] ioctl(4, LOOP_CLR_FD) = 0 [pid 14607] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14607] close(4) = 0 [pid 14607] close(3) = 0 [pid 14607] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14607] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14607] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14607] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14607] open("./bus", O_RDONLY) = 3 [pid 14607] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14607] exit_group(0) = ? [pid 14607] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14607, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14608 ./strace-static-x86_64: Process 14608 attached [pid 14608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14608] setpgid(0, 0) = 0 [pid 14608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14608] write(3, "1000", 4) = 4 [pid 14608] close(3) = 0 [pid 14608] memfd_create("syzkaller", 0) = 3 [pid 14608] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14608] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14608] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14608] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14608] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14608] ioctl(4, LOOP_CLR_FD) = 0 [pid 14608] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14608] close(4) = 0 [pid 14608] close(3) = 0 [pid 14608] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14608] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14608] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14608] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14608] open("./bus", O_RDONLY) = 3 [pid 14608] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14608] exit_group(0) = ? [pid 14608] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14608, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14609 ./strace-static-x86_64: Process 14609 attached [pid 14609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14609] setpgid(0, 0) = 0 [pid 14609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14609] write(3, "1000", 4) = 4 [pid 14609] close(3) = 0 [pid 14609] memfd_create("syzkaller", 0) = 3 [pid 14609] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14609] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14609] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14609] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14609] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14609] ioctl(4, LOOP_CLR_FD) = 0 [pid 14609] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14609] close(4) = 0 [pid 14609] close(3) = 0 [pid 14609] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14609] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14609] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14609] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14609] open("./bus", O_RDONLY) = 3 [pid 14609] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14609] exit_group(0) = ? [pid 14609] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14609, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14610 ./strace-static-x86_64: Process 14610 attached [pid 14610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14610] setpgid(0, 0) = 0 [pid 14610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14610] write(3, "1000", 4) = 4 [pid 14610] close(3) = 0 [pid 14610] memfd_create("syzkaller", 0) = 3 [pid 14610] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14610] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14610] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14610] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14610] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14610] ioctl(4, LOOP_CLR_FD) = 0 [pid 14610] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14610] close(4) = 0 [pid 14610] close(3) = 0 [pid 14610] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14610] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14610] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14610] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14610] open("./bus", O_RDONLY) = 3 [pid 14610] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14610] exit_group(0) = ? [pid 14610] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14610, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14611 ./strace-static-x86_64: Process 14611 attached [pid 14611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14611] setpgid(0, 0) = 0 [pid 14611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14611] write(3, "1000", 4) = 4 [pid 14611] close(3) = 0 [pid 14611] memfd_create("syzkaller", 0) = 3 [pid 14611] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14611] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14611] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14611] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14611] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14611] ioctl(4, LOOP_CLR_FD) = 0 [pid 14611] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14611] close(4) = 0 [pid 14611] close(3) = 0 [pid 14611] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14611] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14611] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14611] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14611] open("./bus", O_RDONLY) = 3 [pid 14611] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14611] exit_group(0) = ? [pid 14611] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14611, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14612 attached , child_tidptr=0x5555575235d0) = 14612 [pid 14612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14612] setpgid(0, 0) = 0 [pid 14612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14612] write(3, "1000", 4) = 4 [pid 14612] close(3) = 0 [pid 14612] memfd_create("syzkaller", 0) = 3 [pid 14612] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14612] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14612] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14612] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14612] ioctl(4, LOOP_CLR_FD) = 0 [pid 14612] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14612] close(4) = 0 [pid 14612] close(3) = 0 [pid 14612] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14612] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14612] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14612] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14612] open("./bus", O_RDONLY) = 3 [pid 14612] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14612] exit_group(0) = ? [pid 14612] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14612, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14613 ./strace-static-x86_64: Process 14613 attached [pid 14613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14613] setpgid(0, 0) = 0 [pid 14613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14613] write(3, "1000", 4) = 4 [pid 14613] close(3) = 0 [pid 14613] memfd_create("syzkaller", 0) = 3 [pid 14613] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14613] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14613] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14613] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14613] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14613] ioctl(4, LOOP_CLR_FD) = 0 [pid 14613] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14613] close(4) = 0 [pid 14613] close(3) = 0 [pid 14613] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14613] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14613] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14613] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14613] open("./bus", O_RDONLY) = 3 [pid 14613] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14613] exit_group(0) = ? [pid 14613] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14613, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14614 ./strace-static-x86_64: Process 14614 attached [pid 14614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14614] setpgid(0, 0) = 0 [pid 14614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14614] write(3, "1000", 4) = 4 [pid 14614] close(3) = 0 [pid 14614] memfd_create("syzkaller", 0) = 3 [pid 14614] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14614] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14614] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14614] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14614] ioctl(4, LOOP_CLR_FD) = 0 [pid 14614] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14614] close(4) = 0 [pid 14614] close(3) = 0 [pid 14614] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14614] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14614] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14614] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14614] open("./bus", O_RDONLY) = 3 [pid 14614] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14614] exit_group(0) = ? [pid 14614] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14614, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14615 attached , child_tidptr=0x5555575235d0) = 14615 [pid 14615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14615] setpgid(0, 0) = 0 [pid 14615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14615] write(3, "1000", 4) = 4 [pid 14615] close(3) = 0 [pid 14615] memfd_create("syzkaller", 0) = 3 [pid 14615] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14615] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14615] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14615] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14615] ioctl(4, LOOP_CLR_FD) = 0 [pid 14615] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14615] close(4) = 0 [pid 14615] close(3) = 0 [pid 14615] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14615] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14615] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14615] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14615] open("./bus", O_RDONLY) = 3 [pid 14615] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14615] exit_group(0) = ? [pid 14615] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14615, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14616 ./strace-static-x86_64: Process 14616 attached [pid 14616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14616] setpgid(0, 0) = 0 [pid 14616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14616] write(3, "1000", 4) = 4 [pid 14616] close(3) = 0 [pid 14616] memfd_create("syzkaller", 0) = 3 [pid 14616] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14616] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14616] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14616] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14616] ioctl(4, LOOP_CLR_FD) = 0 [pid 14616] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14616] close(4) = 0 [pid 14616] close(3) = 0 [pid 14616] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14616] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14616] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14616] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14616] open("./bus", O_RDONLY) = 3 [pid 14616] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14616] exit_group(0) = ? [pid 14616] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14616, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14617 ./strace-static-x86_64: Process 14617 attached [pid 14617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14617] setpgid(0, 0) = 0 [pid 14617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14617] write(3, "1000", 4) = 4 [pid 14617] close(3) = 0 [pid 14617] memfd_create("syzkaller", 0) = 3 [pid 14617] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14617] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14617] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14617] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14617] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14617] ioctl(4, LOOP_CLR_FD) = 0 [pid 14617] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14617] close(4) = 0 [pid 14617] close(3) = 0 [pid 14617] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14617] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14617] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14617] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14617] open("./bus", O_RDONLY) = 3 [pid 14617] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14617] exit_group(0) = ? [pid 14617] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14617, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14618 ./strace-static-x86_64: Process 14618 attached [pid 14618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14618] setpgid(0, 0) = 0 [pid 14618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14618] write(3, "1000", 4) = 4 [pid 14618] close(3) = 0 [pid 14618] memfd_create("syzkaller", 0) = 3 [pid 14618] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14618] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14618] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14618] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14618] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14618] ioctl(4, LOOP_CLR_FD) = 0 [pid 14618] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14618] close(4) = 0 [pid 14618] close(3) = 0 [pid 14618] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14618] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14618] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14618] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14618] open("./bus", O_RDONLY) = 3 [pid 14618] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14618] exit_group(0) = ? [pid 14618] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14618, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14619 ./strace-static-x86_64: Process 14619 attached [pid 14619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14619] setpgid(0, 0) = 0 [pid 14619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14619] write(3, "1000", 4) = 4 [pid 14619] close(3) = 0 [pid 14619] memfd_create("syzkaller", 0) = 3 [pid 14619] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14619] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14619] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14619] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14619] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14619] ioctl(4, LOOP_CLR_FD) = 0 [pid 14619] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14619] close(4) = 0 [pid 14619] close(3) = 0 [pid 14619] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14619] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14619] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14619] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14619] open("./bus", O_RDONLY) = 3 [pid 14619] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14619] exit_group(0) = ? [pid 14619] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14619, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14620 ./strace-static-x86_64: Process 14620 attached [pid 14620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14620] setpgid(0, 0) = 0 [pid 14620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14620] write(3, "1000", 4) = 4 [pid 14620] close(3) = 0 [pid 14620] memfd_create("syzkaller", 0) = 3 [pid 14620] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14620] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14620] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14620] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14620] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14620] ioctl(4, LOOP_CLR_FD) = 0 [pid 14620] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14620] close(4) = 0 [pid 14620] close(3) = 0 [pid 14620] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14620] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14620] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14620] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14620] open("./bus", O_RDONLY) = 3 [pid 14620] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14620] exit_group(0) = ? [pid 14620] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14620, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14621 attached , child_tidptr=0x5555575235d0) = 14621 [pid 14621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14621] setpgid(0, 0) = 0 [pid 14621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14621] write(3, "1000", 4) = 4 [pid 14621] close(3) = 0 [pid 14621] memfd_create("syzkaller", 0) = 3 [pid 14621] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14621] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14621] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14621] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14621] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14621] ioctl(4, LOOP_CLR_FD) = 0 [pid 14621] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14621] close(4) = 0 [pid 14621] close(3) = 0 [pid 14621] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14621] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14621] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14621] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14621] open("./bus", O_RDONLY) = 3 [pid 14621] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14621] exit_group(0) = ? [pid 14621] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14621, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14622 ./strace-static-x86_64: Process 14622 attached [pid 14622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14622] setpgid(0, 0) = 0 [pid 14622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14622] write(3, "1000", 4) = 4 [pid 14622] close(3) = 0 [pid 14622] memfd_create("syzkaller", 0) = 3 [pid 14622] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14622] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14622] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14622] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14622] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14622] ioctl(4, LOOP_CLR_FD) = 0 [pid 14622] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14622] close(4) = 0 [pid 14622] close(3) = 0 [pid 14622] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14622] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14622] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14622] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14622] open("./bus", O_RDONLY) = 3 [pid 14622] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14622] exit_group(0) = ? [pid 14622] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14622, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14623 ./strace-static-x86_64: Process 14623 attached [pid 14623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14623] setpgid(0, 0) = 0 [pid 14623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14623] write(3, "1000", 4) = 4 [pid 14623] close(3) = 0 [pid 14623] memfd_create("syzkaller", 0) = 3 [pid 14623] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14623] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14623] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14623] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14623] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14623] ioctl(4, LOOP_CLR_FD) = 0 [pid 14623] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14623] close(4) = 0 [pid 14623] close(3) = 0 [pid 14623] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14623] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14623] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14623] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14623] open("./bus", O_RDONLY) = 3 [pid 14623] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14623] exit_group(0) = ? [pid 14623] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14623, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14624 ./strace-static-x86_64: Process 14624 attached [pid 14624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14624] setpgid(0, 0) = 0 [pid 14624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14624] write(3, "1000", 4) = 4 [pid 14624] close(3) = 0 [pid 14624] memfd_create("syzkaller", 0) = 3 [pid 14624] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14624] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14624] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14624] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14624] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14624] ioctl(4, LOOP_CLR_FD) = 0 [pid 14624] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14624] close(4) = 0 [pid 14624] close(3) = 0 [pid 14624] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14624] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14624] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14624] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14624] open("./bus", O_RDONLY) = 3 [pid 14624] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14624] exit_group(0) = ? [pid 14624] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14624, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14625 ./strace-static-x86_64: Process 14625 attached [pid 14625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14625] setpgid(0, 0) = 0 [pid 14625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14625] write(3, "1000", 4) = 4 [pid 14625] close(3) = 0 [pid 14625] memfd_create("syzkaller", 0) = 3 [pid 14625] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14625] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14625] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14625] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14625] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14625] ioctl(4, LOOP_CLR_FD) = 0 [pid 14625] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14625] close(4) = 0 [pid 14625] close(3) = 0 [pid 14625] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14625] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14625] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14625] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14625] open("./bus", O_RDONLY) = 3 [pid 14625] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14625] exit_group(0) = ? [pid 14625] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14625, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14626 ./strace-static-x86_64: Process 14626 attached [pid 14626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14626] setpgid(0, 0) = 0 [pid 14626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14626] write(3, "1000", 4) = 4 [pid 14626] close(3) = 0 [pid 14626] memfd_create("syzkaller", 0) = 3 [pid 14626] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14626] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14626] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14626] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14626] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14626] ioctl(4, LOOP_CLR_FD) = 0 [pid 14626] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14626] close(4) = 0 [pid 14626] close(3) = 0 [pid 14626] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14626] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14626] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14626] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14626] open("./bus", O_RDONLY) = 3 [pid 14626] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14626] exit_group(0) = ? [pid 14626] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14626, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14627 ./strace-static-x86_64: Process 14627 attached [pid 14627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14627] setpgid(0, 0) = 0 [pid 14627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14627] write(3, "1000", 4) = 4 [pid 14627] close(3) = 0 [pid 14627] memfd_create("syzkaller", 0) = 3 [pid 14627] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14627] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14627] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14627] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14627] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14627] ioctl(4, LOOP_CLR_FD) = 0 [pid 14627] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14627] close(4) = 0 [pid 14627] close(3) = 0 [pid 14627] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14627] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14627] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14627] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14627] open("./bus", O_RDONLY) = 3 [pid 14627] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14627] exit_group(0) = ? [pid 14627] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14627, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14628 ./strace-static-x86_64: Process 14628 attached [pid 14628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14628] setpgid(0, 0) = 0 [pid 14628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14628] write(3, "1000", 4) = 4 [pid 14628] close(3) = 0 [pid 14628] memfd_create("syzkaller", 0) = 3 [pid 14628] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14628] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14628] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14628] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14628] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14628] ioctl(4, LOOP_CLR_FD) = 0 [pid 14628] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14628] close(4) = 0 [pid 14628] close(3) = 0 [pid 14628] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14628] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14628] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14628] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14628] open("./bus", O_RDONLY) = 3 [pid 14628] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14628] exit_group(0) = ? [pid 14628] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14628, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14629 ./strace-static-x86_64: Process 14629 attached [pid 14629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14629] setpgid(0, 0) = 0 [pid 14629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14629] write(3, "1000", 4) = 4 [pid 14629] close(3) = 0 [pid 14629] memfd_create("syzkaller", 0) = 3 [pid 14629] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14629] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14629] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14629] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14629] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14629] ioctl(4, LOOP_CLR_FD) = 0 [pid 14629] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14629] close(4) = 0 [pid 14629] close(3) = 0 [pid 14629] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14629] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14629] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14629] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14629] open("./bus", O_RDONLY) = 3 [pid 14629] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14629] exit_group(0) = ? [pid 14629] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14629, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14630 ./strace-static-x86_64: Process 14630 attached [pid 14630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14630] setpgid(0, 0) = 0 [pid 14630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14630] write(3, "1000", 4) = 4 [pid 14630] close(3) = 0 [pid 14630] memfd_create("syzkaller", 0) = 3 [pid 14630] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14630] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14630] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14630] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14630] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14630] ioctl(4, LOOP_CLR_FD) = 0 [pid 14630] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14630] close(4) = 0 [pid 14630] close(3) = 0 [pid 14630] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14630] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14630] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14630] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14630] open("./bus", O_RDONLY) = 3 [pid 14630] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14630] exit_group(0) = ? [pid 14630] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14630, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14631 ./strace-static-x86_64: Process 14631 attached [pid 14631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14631] setpgid(0, 0) = 0 [pid 14631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14631] write(3, "1000", 4) = 4 [pid 14631] close(3) = 0 [pid 14631] memfd_create("syzkaller", 0) = 3 [pid 14631] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14631] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14631] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14631] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14631] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14631] ioctl(4, LOOP_CLR_FD) = 0 [pid 14631] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14631] close(4) = 0 [pid 14631] close(3) = 0 [pid 14631] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14631] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14631] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14631] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14631] open("./bus", O_RDONLY) = 3 [pid 14631] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14631] exit_group(0) = ? [pid 14631] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14631, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14632 ./strace-static-x86_64: Process 14632 attached [pid 14632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14632] setpgid(0, 0) = 0 [pid 14632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14632] write(3, "1000", 4) = 4 [pid 14632] close(3) = 0 [pid 14632] memfd_create("syzkaller", 0) = 3 [pid 14632] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14632] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14632] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14632] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14632] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14632] ioctl(4, LOOP_CLR_FD) = 0 [pid 14632] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14632] close(4) = 0 [pid 14632] close(3) = 0 [pid 14632] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14632] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14632] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14632] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14632] open("./bus", O_RDONLY) = 3 [pid 14632] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14632] exit_group(0) = ? [pid 14632] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14632, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14633 ./strace-static-x86_64: Process 14633 attached [pid 14633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14633] setpgid(0, 0) = 0 [pid 14633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14633] write(3, "1000", 4) = 4 [pid 14633] close(3) = 0 [pid 14633] memfd_create("syzkaller", 0) = 3 [pid 14633] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14633] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14633] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14633] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14633] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14633] ioctl(4, LOOP_CLR_FD) = 0 [pid 14633] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14633] close(4) = 0 [pid 14633] close(3) = 0 [pid 14633] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14633] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14633] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14633] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14633] open("./bus", O_RDONLY) = 3 [pid 14633] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14633] exit_group(0) = ? [pid 14633] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14633, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14634 ./strace-static-x86_64: Process 14634 attached [pid 14634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14634] setpgid(0, 0) = 0 [pid 14634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14634] write(3, "1000", 4) = 4 [pid 14634] close(3) = 0 [pid 14634] memfd_create("syzkaller", 0) = 3 [pid 14634] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14634] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14634] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14634] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14634] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14634] ioctl(4, LOOP_CLR_FD) = 0 [pid 14634] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14634] close(4) = 0 [pid 14634] close(3) = 0 [pid 14634] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14634] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14634] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14634] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14634] open("./bus", O_RDONLY) = 3 [pid 14634] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14634] exit_group(0) = ? [pid 14634] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14634, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14635 attached , child_tidptr=0x5555575235d0) = 14635 [pid 14635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14635] setpgid(0, 0) = 0 [pid 14635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14635] write(3, "1000", 4) = 4 [pid 14635] close(3) = 0 [pid 14635] memfd_create("syzkaller", 0) = 3 [pid 14635] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14635] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14635] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14635] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14635] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14635] ioctl(4, LOOP_CLR_FD) = 0 [pid 14635] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14635] close(4) = 0 [pid 14635] close(3) = 0 [pid 14635] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14635] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14635] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14635] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14635] open("./bus", O_RDONLY) = 3 [pid 14635] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14635] exit_group(0) = ? [pid 14635] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14635, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14636 attached , child_tidptr=0x5555575235d0) = 14636 [pid 14636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14636] setpgid(0, 0) = 0 [pid 14636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14636] write(3, "1000", 4) = 4 [pid 14636] close(3) = 0 [pid 14636] memfd_create("syzkaller", 0) = 3 [pid 14636] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14636] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14636] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14636] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14636] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14636] ioctl(4, LOOP_CLR_FD) = 0 [pid 14636] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14636] close(4) = 0 [pid 14636] close(3) = 0 [pid 14636] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14636] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14636] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14636] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14636] open("./bus", O_RDONLY) = 3 [pid 14636] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14636] exit_group(0) = ? [pid 14636] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14636, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14637 attached , child_tidptr=0x5555575235d0) = 14637 [pid 14637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14637] setpgid(0, 0) = 0 [pid 14637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14637] write(3, "1000", 4) = 4 [pid 14637] close(3) = 0 [pid 14637] memfd_create("syzkaller", 0) = 3 [pid 14637] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14637] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14637] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14637] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14637] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14637] ioctl(4, LOOP_CLR_FD) = 0 [pid 14637] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14637] close(4) = 0 [pid 14637] close(3) = 0 [pid 14637] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14637] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14637] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14637] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14637] open("./bus", O_RDONLY) = 3 [pid 14637] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14637] exit_group(0) = ? [pid 14637] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14637, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14638 ./strace-static-x86_64: Process 14638 attached [pid 14638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14638] setpgid(0, 0) = 0 [pid 14638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14638] write(3, "1000", 4) = 4 [pid 14638] close(3) = 0 [pid 14638] memfd_create("syzkaller", 0) = 3 [pid 14638] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14638] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14638] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14638] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14638] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14638] ioctl(4, LOOP_CLR_FD) = 0 [pid 14638] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14638] close(4) = 0 [pid 14638] close(3) = 0 [pid 14638] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14638] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14638] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14638] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14638] open("./bus", O_RDONLY) = 3 [pid 14638] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14638] exit_group(0) = ? [pid 14638] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14638, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14639 attached , child_tidptr=0x5555575235d0) = 14639 [pid 14639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14639] setpgid(0, 0) = 0 [pid 14639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14639] write(3, "1000", 4) = 4 [pid 14639] close(3) = 0 [pid 14639] memfd_create("syzkaller", 0) = 3 [pid 14639] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14639] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14639] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14639] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14639] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14639] ioctl(4, LOOP_CLR_FD) = 0 [pid 14639] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14639] close(4) = 0 [pid 14639] close(3) = 0 [pid 14639] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14639] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14639] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14639] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14639] open("./bus", O_RDONLY) = 3 [pid 14639] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14639] exit_group(0) = ? [pid 14639] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14639, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14640 ./strace-static-x86_64: Process 14640 attached [pid 14640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14640] setpgid(0, 0) = 0 [pid 14640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14640] write(3, "1000", 4) = 4 [pid 14640] close(3) = 0 [pid 14640] memfd_create("syzkaller", 0) = 3 [pid 14640] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14640] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14640] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14640] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14640] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14640] ioctl(4, LOOP_CLR_FD) = 0 [pid 14640] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14640] close(4) = 0 [pid 14640] close(3) = 0 [pid 14640] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14640] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14640] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14640] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14640] open("./bus", O_RDONLY) = 3 [pid 14640] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14640] exit_group(0) = ? [pid 14640] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14640, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14641 ./strace-static-x86_64: Process 14641 attached [pid 14641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14641] setpgid(0, 0) = 0 [pid 14641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14641] write(3, "1000", 4) = 4 [pid 14641] close(3) = 0 [pid 14641] memfd_create("syzkaller", 0) = 3 [pid 14641] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14641] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14641] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14641] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14641] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14641] ioctl(4, LOOP_CLR_FD) = 0 [pid 14641] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14641] close(4) = 0 [pid 14641] close(3) = 0 [pid 14641] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14641] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14641] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14641] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14641] open("./bus", O_RDONLY) = 3 [pid 14641] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14641] exit_group(0) = ? [pid 14641] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14641, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14642 attached , child_tidptr=0x5555575235d0) = 14642 [pid 14642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14642] setpgid(0, 0) = 0 [pid 14642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14642] write(3, "1000", 4) = 4 [pid 14642] close(3) = 0 [pid 14642] memfd_create("syzkaller", 0) = 3 [pid 14642] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14642] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14642] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14642] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14642] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14642] ioctl(4, LOOP_CLR_FD) = 0 [pid 14642] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14642] close(4) = 0 [pid 14642] close(3) = 0 [pid 14642] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14642] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14642] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14642] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14642] open("./bus", O_RDONLY) = 3 [pid 14642] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14642] exit_group(0) = ? [pid 14642] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14642, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14643 ./strace-static-x86_64: Process 14643 attached [pid 14643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14643] setpgid(0, 0) = 0 [pid 14643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14643] write(3, "1000", 4) = 4 [pid 14643] close(3) = 0 [pid 14643] memfd_create("syzkaller", 0) = 3 [pid 14643] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14643] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14643] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14643] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14643] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14643] ioctl(4, LOOP_CLR_FD) = 0 [pid 14643] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14643] close(4) = 0 [pid 14643] close(3) = 0 [pid 14643] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14643] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14643] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14643] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14643] open("./bus", O_RDONLY) = 3 [pid 14643] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14643] exit_group(0) = ? [pid 14643] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14643, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14644 ./strace-static-x86_64: Process 14644 attached [pid 14644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14644] setpgid(0, 0) = 0 [pid 14644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14644] write(3, "1000", 4) = 4 [pid 14644] close(3) = 0 [pid 14644] memfd_create("syzkaller", 0) = 3 [pid 14644] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14644] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14644] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14644] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14644] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14644] ioctl(4, LOOP_CLR_FD) = 0 [pid 14644] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14644] close(4) = 0 [pid 14644] close(3) = 0 [pid 14644] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14644] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14644] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14644] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14644] open("./bus", O_RDONLY) = 3 [pid 14644] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14644] exit_group(0) = ? [pid 14644] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14644, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14645 ./strace-static-x86_64: Process 14645 attached [pid 14645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14645] setpgid(0, 0) = 0 [pid 14645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14645] write(3, "1000", 4) = 4 [pid 14645] close(3) = 0 [pid 14645] memfd_create("syzkaller", 0) = 3 [pid 14645] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14645] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14645] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14645] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14645] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14645] ioctl(4, LOOP_CLR_FD) = 0 [pid 14645] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14645] close(4) = 0 [pid 14645] close(3) = 0 [pid 14645] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14645] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14645] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14645] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14645] open("./bus", O_RDONLY) = 3 [pid 14645] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14645] exit_group(0) = ? [pid 14645] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14645, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14646 attached , child_tidptr=0x5555575235d0) = 14646 [pid 14646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14646] setpgid(0, 0) = 0 [pid 14646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14646] write(3, "1000", 4) = 4 [pid 14646] close(3) = 0 [pid 14646] memfd_create("syzkaller", 0) = 3 [pid 14646] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14646] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14646] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14646] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14646] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14646] ioctl(4, LOOP_CLR_FD) = 0 [pid 14646] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14646] close(4) = 0 [pid 14646] close(3) = 0 [pid 14646] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14646] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14646] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14646] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14646] open("./bus", O_RDONLY) = 3 [pid 14646] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14646] exit_group(0) = ? [pid 14646] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14646, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14647 ./strace-static-x86_64: Process 14647 attached [pid 14647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14647] setpgid(0, 0) = 0 [pid 14647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14647] write(3, "1000", 4) = 4 [pid 14647] close(3) = 0 [pid 14647] memfd_create("syzkaller", 0) = 3 [pid 14647] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14647] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14647] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14647] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14647] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14647] ioctl(4, LOOP_CLR_FD) = 0 [pid 14647] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14647] close(4) = 0 [pid 14647] close(3) = 0 [pid 14647] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14647] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14647] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14647] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14647] open("./bus", O_RDONLY) = 3 [pid 14647] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14647] exit_group(0) = ? [pid 14647] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14647, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14648 ./strace-static-x86_64: Process 14648 attached [pid 14648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14648] setpgid(0, 0) = 0 [pid 14648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14648] write(3, "1000", 4) = 4 [pid 14648] close(3) = 0 [pid 14648] memfd_create("syzkaller", 0) = 3 [pid 14648] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14648] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14648] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14648] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14648] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14648] ioctl(4, LOOP_CLR_FD) = 0 [pid 14648] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14648] close(4) = 0 [pid 14648] close(3) = 0 [pid 14648] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14648] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14648] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14648] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14648] open("./bus", O_RDONLY) = 3 [pid 14648] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14648] exit_group(0) = ? [pid 14648] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14648, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14649 ./strace-static-x86_64: Process 14649 attached [pid 14649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14649] setpgid(0, 0) = 0 [pid 14649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14649] write(3, "1000", 4) = 4 [pid 14649] close(3) = 0 [pid 14649] memfd_create("syzkaller", 0) = 3 [pid 14649] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14649] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14649] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14649] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14649] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14649] ioctl(4, LOOP_CLR_FD) = 0 [pid 14649] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14649] close(4) = 0 [pid 14649] close(3) = 0 [pid 14649] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14649] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14649] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14649] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14649] open("./bus", O_RDONLY) = 3 [pid 14649] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14649] exit_group(0) = ? [pid 14649] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14649, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14650 attached , child_tidptr=0x5555575235d0) = 14650 [pid 14650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14650] setpgid(0, 0) = 0 [pid 14650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14650] write(3, "1000", 4) = 4 [pid 14650] close(3) = 0 [pid 14650] memfd_create("syzkaller", 0) = 3 [pid 14650] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14650] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14650] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14650] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14650] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14650] ioctl(4, LOOP_CLR_FD) = 0 [pid 14650] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14650] close(4) = 0 [pid 14650] close(3) = 0 [pid 14650] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14650] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14650] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14650] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14650] open("./bus", O_RDONLY) = 3 [pid 14650] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14650] exit_group(0) = ? [pid 14650] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14650, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14651 ./strace-static-x86_64: Process 14651 attached [pid 14651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14651] setpgid(0, 0) = 0 [pid 14651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14651] write(3, "1000", 4) = 4 [pid 14651] close(3) = 0 [pid 14651] memfd_create("syzkaller", 0) = 3 [pid 14651] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14651] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14651] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14651] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14651] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14651] ioctl(4, LOOP_CLR_FD) = 0 [pid 14651] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14651] close(4) = 0 [pid 14651] close(3) = 0 [pid 14651] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14651] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14651] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14651] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14651] open("./bus", O_RDONLY) = 3 [pid 14651] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14651] exit_group(0) = ? [pid 14651] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14651, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14652 attached , child_tidptr=0x5555575235d0) = 14652 [pid 14652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14652] setpgid(0, 0) = 0 [pid 14652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14652] write(3, "1000", 4) = 4 [pid 14652] close(3) = 0 [pid 14652] memfd_create("syzkaller", 0) = 3 [pid 14652] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14652] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14652] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14652] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14652] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14652] ioctl(4, LOOP_CLR_FD) = 0 [pid 14652] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14652] close(4) = 0 [pid 14652] close(3) = 0 [pid 14652] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14652] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14652] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14652] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14652] open("./bus", O_RDONLY) = 3 [pid 14652] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14652] exit_group(0) = ? [pid 14652] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14652, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14653 ./strace-static-x86_64: Process 14653 attached [pid 14653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14653] setpgid(0, 0) = 0 [pid 14653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14653] write(3, "1000", 4) = 4 [pid 14653] close(3) = 0 [pid 14653] memfd_create("syzkaller", 0) = 3 [pid 14653] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14653] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14653] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14653] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14653] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14653] ioctl(4, LOOP_CLR_FD) = 0 [pid 14653] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14653] close(4) = 0 [pid 14653] close(3) = 0 [pid 14653] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14653] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14653] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14653] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14653] open("./bus", O_RDONLY) = 3 [pid 14653] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14653] exit_group(0) = ? [pid 14653] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14653, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14654 ./strace-static-x86_64: Process 14654 attached [pid 14654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14654] setpgid(0, 0) = 0 [pid 14654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14654] write(3, "1000", 4) = 4 [pid 14654] close(3) = 0 [pid 14654] memfd_create("syzkaller", 0) = 3 [pid 14654] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14654] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14654] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14654] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14654] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14654] ioctl(4, LOOP_CLR_FD) = 0 [pid 14654] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14654] close(4) = 0 [pid 14654] close(3) = 0 [pid 14654] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14654] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14654] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14654] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14654] open("./bus", O_RDONLY) = 3 [pid 14654] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14654] exit_group(0) = ? [pid 14654] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14654, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14655 attached , child_tidptr=0x5555575235d0) = 14655 [pid 14655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14655] setpgid(0, 0) = 0 [pid 14655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14655] write(3, "1000", 4) = 4 [pid 14655] close(3) = 0 [pid 14655] memfd_create("syzkaller", 0) = 3 [pid 14655] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14655] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14655] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14655] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14655] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14655] ioctl(4, LOOP_CLR_FD) = 0 [pid 14655] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14655] close(4) = 0 [pid 14655] close(3) = 0 [pid 14655] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14655] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14655] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14655] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14655] open("./bus", O_RDONLY) = 3 [pid 14655] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14655] exit_group(0) = ? [pid 14655] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14655, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14656 ./strace-static-x86_64: Process 14656 attached [pid 14656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14656] setpgid(0, 0) = 0 [pid 14656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14656] write(3, "1000", 4) = 4 [pid 14656] close(3) = 0 [pid 14656] memfd_create("syzkaller", 0) = 3 [pid 14656] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14656] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14656] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14656] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14656] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14656] ioctl(4, LOOP_CLR_FD) = 0 [pid 14656] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14656] close(4) = 0 [pid 14656] close(3) = 0 [pid 14656] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14656] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14656] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14656] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14656] open("./bus", O_RDONLY) = 3 [pid 14656] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14656] exit_group(0) = ? [pid 14656] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14656, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14657 ./strace-static-x86_64: Process 14657 attached [pid 14657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14657] setpgid(0, 0) = 0 [pid 14657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14657] write(3, "1000", 4) = 4 [pid 14657] close(3) = 0 [pid 14657] memfd_create("syzkaller", 0) = 3 [pid 14657] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14657] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14657] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14657] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14657] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14657] ioctl(4, LOOP_CLR_FD) = 0 [pid 14657] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14657] close(4) = 0 [pid 14657] close(3) = 0 [pid 14657] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14657] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14657] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14657] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14657] open("./bus", O_RDONLY) = 3 [pid 14657] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14657] exit_group(0) = ? [pid 14657] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14657, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14658 attached , child_tidptr=0x5555575235d0) = 14658 [pid 14658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14658] setpgid(0, 0) = 0 [pid 14658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14658] write(3, "1000", 4) = 4 [pid 14658] close(3) = 0 [pid 14658] memfd_create("syzkaller", 0) = 3 [pid 14658] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14658] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14658] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14658] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14658] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14658] ioctl(4, LOOP_CLR_FD) = 0 [pid 14658] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14658] close(4) = 0 [pid 14658] close(3) = 0 [pid 14658] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14658] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14658] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14658] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14658] open("./bus", O_RDONLY) = 3 [pid 14658] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14658] exit_group(0) = ? [pid 14658] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14658, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14659 attached , child_tidptr=0x5555575235d0) = 14659 [pid 14659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14659] setpgid(0, 0) = 0 [pid 14659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14659] write(3, "1000", 4) = 4 [pid 14659] close(3) = 0 [pid 14659] memfd_create("syzkaller", 0) = 3 [pid 14659] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14659] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14659] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14659] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14659] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14659] ioctl(4, LOOP_CLR_FD) = 0 [pid 14659] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14659] close(4) = 0 [pid 14659] close(3) = 0 [pid 14659] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14659] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14659] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14659] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14659] open("./bus", O_RDONLY) = 3 [pid 14659] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14659] exit_group(0) = ? [pid 14659] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14659, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14660 ./strace-static-x86_64: Process 14660 attached [pid 14660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14660] setpgid(0, 0) = 0 [pid 14660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14660] write(3, "1000", 4) = 4 [pid 14660] close(3) = 0 [pid 14660] memfd_create("syzkaller", 0) = 3 [pid 14660] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14660] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14660] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14660] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14660] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14660] ioctl(4, LOOP_CLR_FD) = 0 [pid 14660] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14660] close(4) = 0 [pid 14660] close(3) = 0 [pid 14660] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14660] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14660] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14660] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14660] open("./bus", O_RDONLY) = 3 [pid 14660] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14660] exit_group(0) = ? [pid 14660] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14660, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14661 ./strace-static-x86_64: Process 14661 attached [pid 14661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14661] setpgid(0, 0) = 0 [pid 14661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14661] write(3, "1000", 4) = 4 [pid 14661] close(3) = 0 [pid 14661] memfd_create("syzkaller", 0) = 3 [pid 14661] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14661] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14661] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14661] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14661] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14661] ioctl(4, LOOP_CLR_FD) = 0 [pid 14661] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14661] close(4) = 0 [pid 14661] close(3) = 0 [pid 14661] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14661] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14661] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14661] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14661] open("./bus", O_RDONLY) = 3 [pid 14661] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14661] exit_group(0) = ? [pid 14661] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14661, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14662 ./strace-static-x86_64: Process 14662 attached [pid 14662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14662] setpgid(0, 0) = 0 [pid 14662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14662] write(3, "1000", 4) = 4 [pid 14662] close(3) = 0 [pid 14662] memfd_create("syzkaller", 0) = 3 [pid 14662] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14662] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14662] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14662] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14662] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14662] ioctl(4, LOOP_CLR_FD) = 0 [pid 14662] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14662] close(4) = 0 [pid 14662] close(3) = 0 [pid 14662] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14662] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14662] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14662] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14662] open("./bus", O_RDONLY) = 3 [pid 14662] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14662] exit_group(0) = ? [pid 14662] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14662, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14663 ./strace-static-x86_64: Process 14663 attached [pid 14663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14663] setpgid(0, 0) = 0 [pid 14663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14663] write(3, "1000", 4) = 4 [pid 14663] close(3) = 0 [pid 14663] memfd_create("syzkaller", 0) = 3 [pid 14663] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14663] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14663] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14663] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14663] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14663] ioctl(4, LOOP_CLR_FD) = 0 [pid 14663] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14663] close(4) = 0 [pid 14663] close(3) = 0 [pid 14663] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14663] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14663] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14663] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14663] open("./bus", O_RDONLY) = 3 [pid 14663] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14663] exit_group(0) = ? [pid 14663] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14663, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14664 ./strace-static-x86_64: Process 14664 attached [pid 14664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14664] setpgid(0, 0) = 0 [pid 14664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14664] write(3, "1000", 4) = 4 [pid 14664] close(3) = 0 [pid 14664] memfd_create("syzkaller", 0) = 3 [pid 14664] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14664] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14664] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14664] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14664] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14664] ioctl(4, LOOP_CLR_FD) = 0 [pid 14664] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14664] close(4) = 0 [pid 14664] close(3) = 0 [pid 14664] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14664] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14664] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14664] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14664] open("./bus", O_RDONLY) = 3 [pid 14664] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14664] exit_group(0) = ? [pid 14664] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14664, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14665 ./strace-static-x86_64: Process 14665 attached [pid 14665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14665] setpgid(0, 0) = 0 [pid 14665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14665] write(3, "1000", 4) = 4 [pid 14665] close(3) = 0 [pid 14665] memfd_create("syzkaller", 0) = 3 [pid 14665] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14665] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14665] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14665] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14665] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14665] ioctl(4, LOOP_CLR_FD) = 0 [pid 14665] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14665] close(4) = 0 [pid 14665] close(3) = 0 [pid 14665] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14665] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14665] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14665] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14665] open("./bus", O_RDONLY) = 3 [pid 14665] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14665] exit_group(0) = ? [pid 14665] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14665, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14666 ./strace-static-x86_64: Process 14666 attached [pid 14666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14666] setpgid(0, 0) = 0 [pid 14666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14666] write(3, "1000", 4) = 4 [pid 14666] close(3) = 0 [pid 14666] memfd_create("syzkaller", 0) = 3 [pid 14666] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14666] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14666] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14666] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14666] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14666] ioctl(4, LOOP_CLR_FD) = 0 [pid 14666] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14666] close(4) = 0 [pid 14666] close(3) = 0 [pid 14666] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14666] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14666] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14666] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14666] open("./bus", O_RDONLY) = 3 [pid 14666] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14666] exit_group(0) = ? [pid 14666] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14666, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14667 attached , child_tidptr=0x5555575235d0) = 14667 [pid 14667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14667] setpgid(0, 0) = 0 [pid 14667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14667] write(3, "1000", 4) = 4 [pid 14667] close(3) = 0 [pid 14667] memfd_create("syzkaller", 0) = 3 [pid 14667] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14667] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14667] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14667] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14667] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14667] ioctl(4, LOOP_CLR_FD) = 0 [pid 14667] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14667] close(4) = 0 [pid 14667] close(3) = 0 [pid 14667] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14667] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14667] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14667] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14667] open("./bus", O_RDONLY) = 3 [pid 14667] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14667] exit_group(0) = ? [pid 14667] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14667, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14668 attached , child_tidptr=0x5555575235d0) = 14668 [pid 14668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14668] setpgid(0, 0) = 0 [pid 14668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14668] write(3, "1000", 4) = 4 [pid 14668] close(3) = 0 [pid 14668] memfd_create("syzkaller", 0) = 3 [pid 14668] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14668] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14668] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14668] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14668] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14668] ioctl(4, LOOP_CLR_FD) = 0 [pid 14668] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14668] close(4) = 0 [pid 14668] close(3) = 0 [pid 14668] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14668] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14668] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14668] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14668] open("./bus", O_RDONLY) = 3 [pid 14668] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14668] exit_group(0) = ? [pid 14668] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14668, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14669 ./strace-static-x86_64: Process 14669 attached [pid 14669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14669] setpgid(0, 0) = 0 [pid 14669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14669] write(3, "1000", 4) = 4 [pid 14669] close(3) = 0 [pid 14669] memfd_create("syzkaller", 0) = 3 [pid 14669] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14669] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14669] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14669] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14669] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14669] ioctl(4, LOOP_CLR_FD) = 0 [pid 14669] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14669] close(4) = 0 [pid 14669] close(3) = 0 [pid 14669] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14669] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14669] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14669] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14669] open("./bus", O_RDONLY) = 3 [pid 14669] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14669] exit_group(0) = ? [pid 14669] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14669, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14670 ./strace-static-x86_64: Process 14670 attached [pid 14670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14670] setpgid(0, 0) = 0 [pid 14670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14670] write(3, "1000", 4) = 4 [pid 14670] close(3) = 0 [pid 14670] memfd_create("syzkaller", 0) = 3 [pid 14670] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14670] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14670] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14670] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14670] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14670] ioctl(4, LOOP_CLR_FD) = 0 [pid 14670] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14670] close(4) = 0 [pid 14670] close(3) = 0 [pid 14670] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14670] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14670] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14670] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14670] open("./bus", O_RDONLY) = 3 [pid 14670] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14670] exit_group(0) = ? [pid 14670] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14670, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14671 ./strace-static-x86_64: Process 14671 attached [pid 14671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14671] setpgid(0, 0) = 0 [pid 14671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14671] write(3, "1000", 4) = 4 [pid 14671] close(3) = 0 [pid 14671] memfd_create("syzkaller", 0) = 3 [pid 14671] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14671] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14671] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14671] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14671] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14671] ioctl(4, LOOP_CLR_FD) = 0 [pid 14671] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14671] close(4) = 0 [pid 14671] close(3) = 0 [pid 14671] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14671] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14671] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14671] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14671] open("./bus", O_RDONLY) = 3 [pid 14671] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14671] exit_group(0) = ? [pid 14671] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14671, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14672 attached , child_tidptr=0x5555575235d0) = 14672 [pid 14672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14672] setpgid(0, 0) = 0 [pid 14672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14672] write(3, "1000", 4) = 4 [pid 14672] close(3) = 0 [pid 14672] memfd_create("syzkaller", 0) = 3 [pid 14672] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14672] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14672] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14672] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14672] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14672] ioctl(4, LOOP_CLR_FD) = 0 [pid 14672] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14672] close(4) = 0 [pid 14672] close(3) = 0 [pid 14672] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14672] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14672] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14672] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14672] open("./bus", O_RDONLY) = 3 [pid 14672] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14672] exit_group(0) = ? [pid 14672] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14672, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14673 ./strace-static-x86_64: Process 14673 attached [pid 14673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14673] setpgid(0, 0) = 0 [pid 14673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14673] write(3, "1000", 4) = 4 [pid 14673] close(3) = 0 [pid 14673] memfd_create("syzkaller", 0) = 3 [pid 14673] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14673] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14673] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14673] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14673] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14673] ioctl(4, LOOP_CLR_FD) = 0 [pid 14673] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14673] close(4) = 0 [pid 14673] close(3) = 0 [pid 14673] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14673] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14673] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14673] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14673] open("./bus", O_RDONLY) = 3 [pid 14673] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14673] exit_group(0) = ? [pid 14673] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14673, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14674 attached , child_tidptr=0x5555575235d0) = 14674 [pid 14674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14674] setpgid(0, 0) = 0 [pid 14674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14674] write(3, "1000", 4) = 4 [pid 14674] close(3) = 0 [pid 14674] memfd_create("syzkaller", 0) = 3 [pid 14674] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14674] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14674] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14674] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14674] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14674] ioctl(4, LOOP_CLR_FD) = 0 [pid 14674] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14674] close(4) = 0 [pid 14674] close(3) = 0 [pid 14674] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14674] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14674] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14674] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14674] open("./bus", O_RDONLY) = 3 [pid 14674] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14674] exit_group(0) = ? [pid 14674] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14674, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14675 attached , child_tidptr=0x5555575235d0) = 14675 [pid 14675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14675] setpgid(0, 0) = 0 [pid 14675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14675] write(3, "1000", 4) = 4 [pid 14675] close(3) = 0 [pid 14675] memfd_create("syzkaller", 0) = 3 [pid 14675] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14675] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14675] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14675] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14675] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14675] ioctl(4, LOOP_CLR_FD) = 0 [pid 14675] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14675] close(4) = 0 [pid 14675] close(3) = 0 [pid 14675] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14675] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14675] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14675] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14675] open("./bus", O_RDONLY) = 3 [pid 14675] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14675] exit_group(0) = ? [pid 14675] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14675, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14676 ./strace-static-x86_64: Process 14676 attached [pid 14676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14676] setpgid(0, 0) = 0 [pid 14676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14676] write(3, "1000", 4) = 4 [pid 14676] close(3) = 0 [pid 14676] memfd_create("syzkaller", 0) = 3 [pid 14676] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14676] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14676] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14676] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14676] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14676] ioctl(4, LOOP_CLR_FD) = 0 [pid 14676] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14676] close(4) = 0 [pid 14676] close(3) = 0 [pid 14676] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14676] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14676] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14676] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14676] open("./bus", O_RDONLY) = 3 [pid 14676] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14676] exit_group(0) = ? [pid 14676] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14676, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14677 ./strace-static-x86_64: Process 14677 attached [pid 14677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14677] setpgid(0, 0) = 0 [pid 14677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14677] write(3, "1000", 4) = 4 [pid 14677] close(3) = 0 [pid 14677] memfd_create("syzkaller", 0) = 3 [pid 14677] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14677] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14677] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14677] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14677] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14677] ioctl(4, LOOP_CLR_FD) = 0 [pid 14677] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14677] close(4) = 0 [pid 14677] close(3) = 0 [pid 14677] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14677] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14677] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14677] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14677] open("./bus", O_RDONLY) = 3 [pid 14677] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14677] exit_group(0) = ? [pid 14677] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14677, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14678 ./strace-static-x86_64: Process 14678 attached [pid 14678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14678] setpgid(0, 0) = 0 [pid 14678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14678] write(3, "1000", 4) = 4 [pid 14678] close(3) = 0 [pid 14678] memfd_create("syzkaller", 0) = 3 [pid 14678] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14678] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14678] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14678] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14678] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14678] ioctl(4, LOOP_CLR_FD) = 0 [pid 14678] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14678] close(4) = 0 [pid 14678] close(3) = 0 [pid 14678] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14678] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14678] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14678] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14678] open("./bus", O_RDONLY) = 3 [pid 14678] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14678] exit_group(0) = ? [pid 14678] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14678, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14679 ./strace-static-x86_64: Process 14679 attached [pid 14679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14679] setpgid(0, 0) = 0 [pid 14679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14679] write(3, "1000", 4) = 4 [pid 14679] close(3) = 0 [pid 14679] memfd_create("syzkaller", 0) = 3 [pid 14679] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14679] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14679] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14679] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14679] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14679] ioctl(4, LOOP_CLR_FD) = 0 [pid 14679] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14679] close(4) = 0 [pid 14679] close(3) = 0 [pid 14679] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14679] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14679] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14679] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14679] open("./bus", O_RDONLY) = 3 [pid 14679] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14679] exit_group(0) = ? [pid 14679] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14679, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14680 ./strace-static-x86_64: Process 14680 attached [pid 14680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14680] setpgid(0, 0) = 0 [pid 14680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14680] write(3, "1000", 4) = 4 [pid 14680] close(3) = 0 [pid 14680] memfd_create("syzkaller", 0) = 3 [pid 14680] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14680] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14680] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14680] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14680] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14680] ioctl(4, LOOP_CLR_FD) = 0 [pid 14680] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14680] close(4) = 0 [pid 14680] close(3) = 0 [pid 14680] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14680] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14680] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14680] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14680] open("./bus", O_RDONLY) = 3 [pid 14680] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14680] exit_group(0) = ? [pid 14680] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14680, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14681 attached , child_tidptr=0x5555575235d0) = 14681 [pid 14681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14681] setpgid(0, 0) = 0 [pid 14681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14681] write(3, "1000", 4) = 4 [pid 14681] close(3) = 0 [pid 14681] memfd_create("syzkaller", 0) = 3 [pid 14681] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14681] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14681] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14681] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14681] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14681] ioctl(4, LOOP_CLR_FD) = 0 [pid 14681] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14681] close(4) = 0 [pid 14681] close(3) = 0 [pid 14681] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14681] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14681] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14681] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14681] open("./bus", O_RDONLY) = 3 [pid 14681] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14681] exit_group(0) = ? [pid 14681] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14681, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14682 ./strace-static-x86_64: Process 14682 attached [pid 14682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14682] setpgid(0, 0) = 0 [pid 14682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14682] write(3, "1000", 4) = 4 [pid 14682] close(3) = 0 [pid 14682] memfd_create("syzkaller", 0) = 3 [pid 14682] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14682] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14682] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14682] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14682] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14682] ioctl(4, LOOP_CLR_FD) = 0 [pid 14682] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14682] close(4) = 0 [pid 14682] close(3) = 0 [pid 14682] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14682] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14682] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14682] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14682] open("./bus", O_RDONLY) = 3 [pid 14682] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14682] exit_group(0) = ? [pid 14682] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14682, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14683 attached , child_tidptr=0x5555575235d0) = 14683 [pid 14683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14683] setpgid(0, 0) = 0 [pid 14683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14683] write(3, "1000", 4) = 4 [pid 14683] close(3) = 0 [pid 14683] memfd_create("syzkaller", 0) = 3 [pid 14683] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14683] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14683] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14683] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14683] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14683] ioctl(4, LOOP_CLR_FD) = 0 [pid 14683] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14683] close(4) = 0 [pid 14683] close(3) = 0 [pid 14683] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14683] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14683] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14683] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14683] open("./bus", O_RDONLY) = 3 [pid 14683] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14683] exit_group(0) = ? [pid 14683] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14683, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14684 attached , child_tidptr=0x5555575235d0) = 14684 [pid 14684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14684] setpgid(0, 0) = 0 [pid 14684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14684] write(3, "1000", 4) = 4 [pid 14684] close(3) = 0 [pid 14684] memfd_create("syzkaller", 0) = 3 [pid 14684] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14684] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14684] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14684] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14684] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14684] ioctl(4, LOOP_CLR_FD) = 0 [pid 14684] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14684] close(4) = 0 [pid 14684] close(3) = 0 [pid 14684] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14684] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14684] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14684] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14684] open("./bus", O_RDONLY) = 3 [pid 14684] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14684] exit_group(0) = ? [pid 14684] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14684, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14685 ./strace-static-x86_64: Process 14685 attached [pid 14685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14685] setpgid(0, 0) = 0 [pid 14685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14685] write(3, "1000", 4) = 4 [pid 14685] close(3) = 0 [pid 14685] memfd_create("syzkaller", 0) = 3 [pid 14685] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14685] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14685] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14685] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14685] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14685] ioctl(4, LOOP_CLR_FD) = 0 [pid 14685] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14685] close(4) = 0 [pid 14685] close(3) = 0 [pid 14685] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14685] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14685] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14685] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14685] open("./bus", O_RDONLY) = 3 [pid 14685] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14685] exit_group(0) = ? [pid 14685] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14685, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14686 ./strace-static-x86_64: Process 14686 attached [pid 14686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14686] setpgid(0, 0) = 0 [pid 14686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14686] write(3, "1000", 4) = 4 [pid 14686] close(3) = 0 [pid 14686] memfd_create("syzkaller", 0) = 3 [pid 14686] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14686] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14686] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14686] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14686] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14686] ioctl(4, LOOP_CLR_FD) = 0 [pid 14686] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14686] close(4) = 0 [pid 14686] close(3) = 0 [pid 14686] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14686] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14686] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14686] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14686] open("./bus", O_RDONLY) = 3 [pid 14686] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14686] exit_group(0) = ? [pid 14686] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14686, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14687 ./strace-static-x86_64: Process 14687 attached [pid 14687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14687] setpgid(0, 0) = 0 [pid 14687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14687] write(3, "1000", 4) = 4 [pid 14687] close(3) = 0 [pid 14687] memfd_create("syzkaller", 0) = 3 [pid 14687] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14687] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14687] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14687] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14687] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14687] ioctl(4, LOOP_CLR_FD) = 0 [pid 14687] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14687] close(4) = 0 [pid 14687] close(3) = 0 [pid 14687] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14687] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14687] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14687] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14687] open("./bus", O_RDONLY) = 3 [pid 14687] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14687] exit_group(0) = ? [pid 14687] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14687, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14688 attached , child_tidptr=0x5555575235d0) = 14688 [pid 14688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14688] setpgid(0, 0) = 0 [pid 14688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14688] write(3, "1000", 4) = 4 [pid 14688] close(3) = 0 [pid 14688] memfd_create("syzkaller", 0) = 3 [pid 14688] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14688] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14688] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14688] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14688] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14688] ioctl(4, LOOP_CLR_FD) = 0 [pid 14688] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14688] close(4) = 0 [pid 14688] close(3) = 0 [pid 14688] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14688] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14688] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14688] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14688] open("./bus", O_RDONLY) = 3 [pid 14688] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14688] exit_group(0) = ? [pid 14688] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14688, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14689 ./strace-static-x86_64: Process 14689 attached [pid 14689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14689] setpgid(0, 0) = 0 [pid 14689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14689] write(3, "1000", 4) = 4 [pid 14689] close(3) = 0 [pid 14689] memfd_create("syzkaller", 0) = 3 [pid 14689] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14689] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14689] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14689] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14689] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14689] ioctl(4, LOOP_CLR_FD) = 0 [pid 14689] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14689] close(4) = 0 [pid 14689] close(3) = 0 [pid 14689] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14689] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14689] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14689] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14689] open("./bus", O_RDONLY) = 3 [pid 14689] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14689] exit_group(0) = ? [pid 14689] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14689, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14690 ./strace-static-x86_64: Process 14690 attached [pid 14690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14690] setpgid(0, 0) = 0 [pid 14690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14690] write(3, "1000", 4) = 4 [pid 14690] close(3) = 0 [pid 14690] memfd_create("syzkaller", 0) = 3 [pid 14690] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14690] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14690] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14690] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14690] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14690] ioctl(4, LOOP_CLR_FD) = 0 [pid 14690] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14690] close(4) = 0 [pid 14690] close(3) = 0 [pid 14690] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14690] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14690] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14690] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14690] open("./bus", O_RDONLY) = 3 [pid 14690] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14690] exit_group(0) = ? [pid 14690] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14690, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14691 attached , child_tidptr=0x5555575235d0) = 14691 [pid 14691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14691] setpgid(0, 0) = 0 [pid 14691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14691] write(3, "1000", 4) = 4 [pid 14691] close(3) = 0 [pid 14691] memfd_create("syzkaller", 0) = 3 [pid 14691] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14691] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14691] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14691] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14691] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14691] ioctl(4, LOOP_CLR_FD) = 0 [pid 14691] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14691] close(4) = 0 [pid 14691] close(3) = 0 [pid 14691] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14691] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14691] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14691] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14691] open("./bus", O_RDONLY) = 3 [pid 14691] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14691] exit_group(0) = ? [pid 14691] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14691, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14692 ./strace-static-x86_64: Process 14692 attached [pid 14692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14692] setpgid(0, 0) = 0 [pid 14692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14692] write(3, "1000", 4) = 4 [pid 14692] close(3) = 0 [pid 14692] memfd_create("syzkaller", 0) = 3 [pid 14692] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14692] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14692] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14692] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14692] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14692] ioctl(4, LOOP_CLR_FD) = 0 [pid 14692] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14692] close(4) = 0 [pid 14692] close(3) = 0 [pid 14692] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14692] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14692] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14692] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14692] open("./bus", O_RDONLY) = 3 [pid 14692] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14692] exit_group(0) = ? [pid 14692] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14692, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14693 ./strace-static-x86_64: Process 14693 attached [pid 14693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14693] setpgid(0, 0) = 0 [pid 14693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14693] write(3, "1000", 4) = 4 [pid 14693] close(3) = 0 [pid 14693] memfd_create("syzkaller", 0) = 3 [pid 14693] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14693] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14693] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14693] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14693] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14693] ioctl(4, LOOP_CLR_FD) = 0 [pid 14693] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14693] close(4) = 0 [pid 14693] close(3) = 0 [pid 14693] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14693] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14693] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14693] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14693] open("./bus", O_RDONLY) = 3 [pid 14693] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14693] exit_group(0) = ? [pid 14693] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14693, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14694 attached , child_tidptr=0x5555575235d0) = 14694 [pid 14694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14694] setpgid(0, 0) = 0 [pid 14694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14694] write(3, "1000", 4) = 4 [pid 14694] close(3) = 0 [pid 14694] memfd_create("syzkaller", 0) = 3 [pid 14694] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14694] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14694] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14694] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14694] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14694] ioctl(4, LOOP_CLR_FD) = 0 [pid 14694] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14694] close(4) = 0 [pid 14694] close(3) = 0 [pid 14694] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14694] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14694] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14694] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14694] open("./bus", O_RDONLY) = 3 [pid 14694] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14694] exit_group(0) = ? [pid 14694] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14694, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14695 ./strace-static-x86_64: Process 14695 attached [pid 14695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14695] setpgid(0, 0) = 0 [pid 14695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14695] write(3, "1000", 4) = 4 [pid 14695] close(3) = 0 [pid 14695] memfd_create("syzkaller", 0) = 3 [pid 14695] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14695] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14695] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14695] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14695] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14695] ioctl(4, LOOP_CLR_FD) = 0 [pid 14695] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14695] close(4) = 0 [pid 14695] close(3) = 0 [pid 14695] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14695] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14695] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14695] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14695] open("./bus", O_RDONLY) = 3 [pid 14695] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14695] exit_group(0) = ? [pid 14695] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14695, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14696 attached , child_tidptr=0x5555575235d0) = 14696 [pid 14696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14696] setpgid(0, 0) = 0 [pid 14696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14696] write(3, "1000", 4) = 4 [pid 14696] close(3) = 0 [pid 14696] memfd_create("syzkaller", 0) = 3 [pid 14696] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14696] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14696] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14696] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14696] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14696] ioctl(4, LOOP_CLR_FD) = 0 [pid 14696] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14696] close(4) = 0 [pid 14696] close(3) = 0 [pid 14696] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14696] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14696] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14696] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14696] open("./bus", O_RDONLY) = 3 [pid 14696] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14696] exit_group(0) = ? [pid 14696] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14696, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14697 ./strace-static-x86_64: Process 14697 attached [pid 14697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14697] setpgid(0, 0) = 0 [pid 14697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14697] write(3, "1000", 4) = 4 [pid 14697] close(3) = 0 [pid 14697] memfd_create("syzkaller", 0) = 3 [pid 14697] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14697] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14697] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14697] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14697] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14697] ioctl(4, LOOP_CLR_FD) = 0 [pid 14697] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14697] close(4) = 0 [pid 14697] close(3) = 0 [pid 14697] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14697] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14697] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14697] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14697] open("./bus", O_RDONLY) = 3 [pid 14697] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14697] exit_group(0) = ? [pid 14697] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14697, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14698 ./strace-static-x86_64: Process 14698 attached [pid 14698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14698] setpgid(0, 0) = 0 [pid 14698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14698] write(3, "1000", 4) = 4 [pid 14698] close(3) = 0 [pid 14698] memfd_create("syzkaller", 0) = 3 [pid 14698] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14698] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14698] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14698] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14698] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14698] ioctl(4, LOOP_CLR_FD) = 0 [pid 14698] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14698] close(4) = 0 [pid 14698] close(3) = 0 [pid 14698] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14698] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14698] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14698] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14698] open("./bus", O_RDONLY) = 3 [pid 14698] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14698] exit_group(0) = ? [pid 14698] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14698, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14699 ./strace-static-x86_64: Process 14699 attached [pid 14699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14699] setpgid(0, 0) = 0 [pid 14699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14699] write(3, "1000", 4) = 4 [pid 14699] close(3) = 0 [pid 14699] memfd_create("syzkaller", 0) = 3 [pid 14699] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14699] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14699] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14699] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14699] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14699] ioctl(4, LOOP_CLR_FD) = 0 [pid 14699] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14699] close(4) = 0 [pid 14699] close(3) = 0 [pid 14699] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14699] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14699] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14699] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14699] open("./bus", O_RDONLY) = 3 [pid 14699] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14699] exit_group(0) = ? [pid 14699] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14699, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14700 ./strace-static-x86_64: Process 14700 attached [pid 14700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14700] setpgid(0, 0) = 0 [pid 14700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14700] write(3, "1000", 4) = 4 [pid 14700] close(3) = 0 [pid 14700] memfd_create("syzkaller", 0) = 3 [pid 14700] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14700] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14700] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14700] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14700] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14700] ioctl(4, LOOP_CLR_FD) = 0 [pid 14700] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14700] close(4) = 0 [pid 14700] close(3) = 0 [pid 14700] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14700] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14700] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14700] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14700] open("./bus", O_RDONLY) = 3 [pid 14700] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14700] exit_group(0) = ? [pid 14700] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14700, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14701 ./strace-static-x86_64: Process 14701 attached [pid 14701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14701] setpgid(0, 0) = 0 [pid 14701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14701] write(3, "1000", 4) = 4 [pid 14701] close(3) = 0 [pid 14701] memfd_create("syzkaller", 0) = 3 [pid 14701] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14701] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14701] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14701] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14701] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14701] ioctl(4, LOOP_CLR_FD) = 0 [pid 14701] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14701] close(4) = 0 [pid 14701] close(3) = 0 [pid 14701] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14701] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14701] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14701] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14701] open("./bus", O_RDONLY) = 3 [pid 14701] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14701] exit_group(0) = ? [pid 14701] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14701, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14702 ./strace-static-x86_64: Process 14702 attached [pid 14702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14702] setpgid(0, 0) = 0 [pid 14702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14702] write(3, "1000", 4) = 4 [pid 14702] close(3) = 0 [pid 14702] memfd_create("syzkaller", 0) = 3 [pid 14702] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14702] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14702] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14702] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14702] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14702] ioctl(4, LOOP_CLR_FD) = 0 [pid 14702] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14702] close(4) = 0 [pid 14702] close(3) = 0 [pid 14702] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14702] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14702] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14702] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14702] open("./bus", O_RDONLY) = 3 [pid 14702] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14702] exit_group(0) = ? [pid 14702] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14702, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14703 attached , child_tidptr=0x5555575235d0) = 14703 [pid 14703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14703] setpgid(0, 0) = 0 [pid 14703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14703] write(3, "1000", 4) = 4 [pid 14703] close(3) = 0 [pid 14703] memfd_create("syzkaller", 0) = 3 [pid 14703] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14703] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14703] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14703] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14703] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14703] ioctl(4, LOOP_CLR_FD) = 0 [pid 14703] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14703] close(4) = 0 [pid 14703] close(3) = 0 [pid 14703] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14703] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14703] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14703] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14703] open("./bus", O_RDONLY) = 3 [pid 14703] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14703] exit_group(0) = ? [pid 14703] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14703, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14704 ./strace-static-x86_64: Process 14704 attached [pid 14704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14704] setpgid(0, 0) = 0 [pid 14704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14704] write(3, "1000", 4) = 4 [pid 14704] close(3) = 0 [pid 14704] memfd_create("syzkaller", 0) = 3 [pid 14704] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14704] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14704] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14704] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14704] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14704] ioctl(4, LOOP_CLR_FD) = 0 [pid 14704] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14704] close(4) = 0 [pid 14704] close(3) = 0 [pid 14704] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14704] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14704] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14704] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14704] open("./bus", O_RDONLY) = 3 [pid 14704] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14704] exit_group(0) = ? [pid 14704] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14704, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14705 ./strace-static-x86_64: Process 14705 attached [pid 14705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14705] setpgid(0, 0) = 0 [pid 14705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14705] write(3, "1000", 4) = 4 [pid 14705] close(3) = 0 [pid 14705] memfd_create("syzkaller", 0) = 3 [pid 14705] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14705] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14705] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14705] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14705] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14705] ioctl(4, LOOP_CLR_FD) = 0 [pid 14705] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14705] close(4) = 0 [pid 14705] close(3) = 0 [pid 14705] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14705] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14705] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14705] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14705] open("./bus", O_RDONLY) = 3 [pid 14705] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14705] exit_group(0) = ? [pid 14705] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14705, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14706 ./strace-static-x86_64: Process 14706 attached [pid 14706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14706] setpgid(0, 0) = 0 [pid 14706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14706] write(3, "1000", 4) = 4 [pid 14706] close(3) = 0 [pid 14706] memfd_create("syzkaller", 0) = 3 [pid 14706] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14706] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14706] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14706] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14706] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14706] ioctl(4, LOOP_CLR_FD) = 0 [pid 14706] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14706] close(4) = 0 [pid 14706] close(3) = 0 [pid 14706] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14706] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14706] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14706] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14706] open("./bus", O_RDONLY) = 3 [pid 14706] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14706] exit_group(0) = ? [pid 14706] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14706, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14707 ./strace-static-x86_64: Process 14707 attached [pid 14707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14707] setpgid(0, 0) = 0 [pid 14707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14707] write(3, "1000", 4) = 4 [pid 14707] close(3) = 0 [pid 14707] memfd_create("syzkaller", 0) = 3 [pid 14707] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14707] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14707] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14707] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14707] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14707] ioctl(4, LOOP_CLR_FD) = 0 [pid 14707] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14707] close(4) = 0 [pid 14707] close(3) = 0 [pid 14707] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14707] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14707] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14707] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14707] open("./bus", O_RDONLY) = 3 [pid 14707] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14707] exit_group(0) = ? [pid 14707] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14707, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14708 ./strace-static-x86_64: Process 14708 attached [pid 14708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14708] setpgid(0, 0) = 0 [pid 14708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14708] write(3, "1000", 4) = 4 [pid 14708] close(3) = 0 [pid 14708] memfd_create("syzkaller", 0) = 3 [pid 14708] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14708] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14708] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14708] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14708] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14708] ioctl(4, LOOP_CLR_FD) = 0 [pid 14708] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14708] close(4) = 0 [pid 14708] close(3) = 0 [pid 14708] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14708] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14708] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14708] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14708] open("./bus", O_RDONLY) = 3 [pid 14708] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14708] exit_group(0) = ? [pid 14708] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14708, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14709 ./strace-static-x86_64: Process 14709 attached [pid 14709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14709] setpgid(0, 0) = 0 [pid 14709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14709] write(3, "1000", 4) = 4 [pid 14709] close(3) = 0 [pid 14709] memfd_create("syzkaller", 0) = 3 [pid 14709] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14709] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14709] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14709] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14709] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14709] ioctl(4, LOOP_CLR_FD) = 0 [pid 14709] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14709] close(4) = 0 [pid 14709] close(3) = 0 [pid 14709] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14709] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14709] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14709] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14709] open("./bus", O_RDONLY) = 3 [pid 14709] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14709] exit_group(0) = ? [pid 14709] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14709, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14710 attached , child_tidptr=0x5555575235d0) = 14710 [pid 14710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14710] setpgid(0, 0) = 0 [pid 14710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14710] write(3, "1000", 4) = 4 [pid 14710] close(3) = 0 [pid 14710] memfd_create("syzkaller", 0) = 3 [pid 14710] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14710] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14710] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14710] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14710] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14710] ioctl(4, LOOP_CLR_FD) = 0 [pid 14710] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14710] close(4) = 0 [pid 14710] close(3) = 0 [pid 14710] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14710] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14710] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14710] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14710] open("./bus", O_RDONLY) = 3 [pid 14710] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14710] exit_group(0) = ? [pid 14710] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14710, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14711 attached , child_tidptr=0x5555575235d0) = 14711 [pid 14711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14711] setpgid(0, 0) = 0 [pid 14711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14711] write(3, "1000", 4) = 4 [pid 14711] close(3) = 0 [pid 14711] memfd_create("syzkaller", 0) = 3 [pid 14711] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14711] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14711] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14711] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14711] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14711] ioctl(4, LOOP_CLR_FD) = 0 [pid 14711] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14711] close(4) = 0 [pid 14711] close(3) = 0 [pid 14711] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14711] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14711] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14711] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14711] open("./bus", O_RDONLY) = 3 [pid 14711] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14711] exit_group(0) = ? [pid 14711] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14711, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14712 ./strace-static-x86_64: Process 14712 attached [pid 14712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14712] setpgid(0, 0) = 0 [pid 14712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14712] write(3, "1000", 4) = 4 [pid 14712] close(3) = 0 [pid 14712] memfd_create("syzkaller", 0) = 3 [pid 14712] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14712] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14712] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14712] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14712] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14712] ioctl(4, LOOP_CLR_FD) = 0 [pid 14712] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14712] close(4) = 0 [pid 14712] close(3) = 0 [pid 14712] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14712] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14712] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14712] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14712] open("./bus", O_RDONLY) = 3 [pid 14712] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14712] exit_group(0) = ? [pid 14712] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14712, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14713 ./strace-static-x86_64: Process 14713 attached [pid 14713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14713] setpgid(0, 0) = 0 [pid 14713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14713] write(3, "1000", 4) = 4 [pid 14713] close(3) = 0 [pid 14713] memfd_create("syzkaller", 0) = 3 [pid 14713] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14713] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14713] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14713] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14713] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14713] ioctl(4, LOOP_CLR_FD) = 0 [pid 14713] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14713] close(4) = 0 [pid 14713] close(3) = 0 [pid 14713] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14713] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14713] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14713] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14713] open("./bus", O_RDONLY) = 3 [pid 14713] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14713] exit_group(0) = ? [pid 14713] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14713, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14714 attached , child_tidptr=0x5555575235d0) = 14714 [pid 14714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14714] setpgid(0, 0) = 0 [pid 14714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14714] write(3, "1000", 4) = 4 [pid 14714] close(3) = 0 [pid 14714] memfd_create("syzkaller", 0) = 3 [pid 14714] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14714] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14714] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14714] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14714] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14714] ioctl(4, LOOP_CLR_FD) = 0 [pid 14714] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14714] close(4) = 0 [pid 14714] close(3) = 0 [pid 14714] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14714] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14714] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14714] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14714] open("./bus", O_RDONLY) = 3 [pid 14714] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14714] exit_group(0) = ? [pid 14714] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14714, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14715 ./strace-static-x86_64: Process 14715 attached [pid 14715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14715] setpgid(0, 0) = 0 [pid 14715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14715] write(3, "1000", 4) = 4 [pid 14715] close(3) = 0 [pid 14715] memfd_create("syzkaller", 0) = 3 [pid 14715] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14715] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14715] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14715] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14715] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14715] ioctl(4, LOOP_CLR_FD) = 0 [pid 14715] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14715] close(4) = 0 [pid 14715] close(3) = 0 [pid 14715] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14715] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14715] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14715] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14715] open("./bus", O_RDONLY) = 3 [pid 14715] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14715] exit_group(0) = ? [pid 14715] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14715, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14716 attached , child_tidptr=0x5555575235d0) = 14716 [pid 14716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14716] setpgid(0, 0) = 0 [pid 14716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14716] write(3, "1000", 4) = 4 [pid 14716] close(3) = 0 [pid 14716] memfd_create("syzkaller", 0) = 3 [pid 14716] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14716] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14716] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14716] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14716] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14716] ioctl(4, LOOP_CLR_FD) = 0 [pid 14716] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14716] close(4) = 0 [pid 14716] close(3) = 0 [pid 14716] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14716] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14716] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14716] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14716] open("./bus", O_RDONLY) = 3 [pid 14716] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14716] exit_group(0) = ? [pid 14716] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14716, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14717 attached , child_tidptr=0x5555575235d0) = 14717 [pid 14717] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14717] setpgid(0, 0) = 0 [pid 14717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14717] write(3, "1000", 4) = 4 [pid 14717] close(3) = 0 [pid 14717] memfd_create("syzkaller", 0) = 3 [pid 14717] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14717] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14717] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14717] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14717] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14717] ioctl(4, LOOP_CLR_FD) = 0 [pid 14717] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14717] close(4) = 0 [pid 14717] close(3) = 0 [pid 14717] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14717] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14717] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14717] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14717] open("./bus", O_RDONLY) = 3 [pid 14717] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14717] exit_group(0) = ? [pid 14717] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14717, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14718 ./strace-static-x86_64: Process 14718 attached [pid 14718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14718] setpgid(0, 0) = 0 [pid 14718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14718] write(3, "1000", 4) = 4 [pid 14718] close(3) = 0 [pid 14718] memfd_create("syzkaller", 0) = 3 [pid 14718] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14718] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14718] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14718] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14718] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14718] ioctl(4, LOOP_CLR_FD) = 0 [pid 14718] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14718] close(4) = 0 [pid 14718] close(3) = 0 [pid 14718] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14718] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14718] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14718] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14718] open("./bus", O_RDONLY) = 3 [pid 14718] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14718] exit_group(0) = ? [pid 14718] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14718, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14719 ./strace-static-x86_64: Process 14719 attached [pid 14719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14719] setpgid(0, 0) = 0 [pid 14719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14719] write(3, "1000", 4) = 4 [pid 14719] close(3) = 0 [pid 14719] memfd_create("syzkaller", 0) = 3 [pid 14719] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14719] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14719] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14719] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14719] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14719] ioctl(4, LOOP_CLR_FD) = 0 [pid 14719] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14719] close(4) = 0 [pid 14719] close(3) = 0 [pid 14719] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14719] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14719] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14719] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14719] open("./bus", O_RDONLY) = 3 [pid 14719] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14719] exit_group(0) = ? [pid 14719] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14719, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14720 ./strace-static-x86_64: Process 14720 attached [pid 14720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14720] setpgid(0, 0) = 0 [pid 14720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14720] write(3, "1000", 4) = 4 [pid 14720] close(3) = 0 [pid 14720] memfd_create("syzkaller", 0) = 3 [pid 14720] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14720] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14720] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14720] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14720] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14720] ioctl(4, LOOP_CLR_FD) = 0 [pid 14720] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14720] close(4) = 0 [pid 14720] close(3) = 0 [pid 14720] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14720] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14720] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14720] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14720] open("./bus", O_RDONLY) = 3 [pid 14720] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14720] exit_group(0) = ? [pid 14720] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14720, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14721 ./strace-static-x86_64: Process 14721 attached [pid 14721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14721] setpgid(0, 0) = 0 [pid 14721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14721] write(3, "1000", 4) = 4 [pid 14721] close(3) = 0 [pid 14721] memfd_create("syzkaller", 0) = 3 [pid 14721] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14721] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14721] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14721] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14721] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14721] ioctl(4, LOOP_CLR_FD) = 0 [pid 14721] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14721] close(4) = 0 [pid 14721] close(3) = 0 [pid 14721] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14721] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14721] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14721] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14721] open("./bus", O_RDONLY) = 3 [pid 14721] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14721] exit_group(0) = ? [pid 14721] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14721, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14722 ./strace-static-x86_64: Process 14722 attached [pid 14722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14722] setpgid(0, 0) = 0 [pid 14722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14722] write(3, "1000", 4) = 4 [pid 14722] close(3) = 0 [pid 14722] memfd_create("syzkaller", 0) = 3 [pid 14722] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14722] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14722] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14722] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14722] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14722] ioctl(4, LOOP_CLR_FD) = 0 [pid 14722] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14722] close(4) = 0 [pid 14722] close(3) = 0 [pid 14722] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14722] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14722] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14722] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14722] open("./bus", O_RDONLY) = 3 [pid 14722] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14722] exit_group(0) = ? [pid 14722] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14722, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14723 ./strace-static-x86_64: Process 14723 attached [pid 14723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14723] setpgid(0, 0) = 0 [pid 14723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14723] write(3, "1000", 4) = 4 [pid 14723] close(3) = 0 [pid 14723] memfd_create("syzkaller", 0) = 3 [pid 14723] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14723] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14723] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14723] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14723] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14723] ioctl(4, LOOP_CLR_FD) = 0 [pid 14723] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14723] close(4) = 0 [pid 14723] close(3) = 0 [pid 14723] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14723] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14723] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14723] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14723] open("./bus", O_RDONLY) = 3 [pid 14723] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14723] exit_group(0) = ? [pid 14723] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14723, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14724 attached , child_tidptr=0x5555575235d0) = 14724 [pid 14724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14724] setpgid(0, 0) = 0 [pid 14724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14724] write(3, "1000", 4) = 4 [pid 14724] close(3) = 0 [pid 14724] memfd_create("syzkaller", 0) = 3 [pid 14724] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14724] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14724] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14724] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14724] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14724] ioctl(4, LOOP_CLR_FD) = 0 [pid 14724] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14724] close(4) = 0 [pid 14724] close(3) = 0 [pid 14724] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14724] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14724] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14724] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14724] open("./bus", O_RDONLY) = 3 [pid 14724] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14724] exit_group(0) = ? [pid 14724] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14724, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14725 ./strace-static-x86_64: Process 14725 attached [pid 14725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14725] setpgid(0, 0) = 0 [pid 14725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14725] write(3, "1000", 4) = 4 [pid 14725] close(3) = 0 [pid 14725] memfd_create("syzkaller", 0) = 3 [pid 14725] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14725] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14725] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14725] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14725] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14725] ioctl(4, LOOP_CLR_FD) = 0 [pid 14725] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14725] close(4) = 0 [pid 14725] close(3) = 0 [pid 14725] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14725] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14725] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14725] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14725] open("./bus", O_RDONLY) = 3 [pid 14725] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14725] exit_group(0) = ? [pid 14725] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14725, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14726 ./strace-static-x86_64: Process 14726 attached [pid 14726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14726] setpgid(0, 0) = 0 [pid 14726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14726] write(3, "1000", 4) = 4 [pid 14726] close(3) = 0 [pid 14726] memfd_create("syzkaller", 0) = 3 [pid 14726] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14726] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14726] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14726] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14726] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14726] ioctl(4, LOOP_CLR_FD) = 0 [pid 14726] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14726] close(4) = 0 [pid 14726] close(3) = 0 [pid 14726] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14726] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14726] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14726] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14726] open("./bus", O_RDONLY) = 3 [pid 14726] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14726] exit_group(0) = ? [pid 14726] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14726, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14727 ./strace-static-x86_64: Process 14727 attached [pid 14727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14727] setpgid(0, 0) = 0 [pid 14727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14727] write(3, "1000", 4) = 4 [pid 14727] close(3) = 0 [pid 14727] memfd_create("syzkaller", 0) = 3 [pid 14727] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14727] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14727] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14727] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14727] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14727] ioctl(4, LOOP_CLR_FD) = 0 [pid 14727] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14727] close(4) = 0 [pid 14727] close(3) = 0 [pid 14727] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14727] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14727] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14727] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14727] open("./bus", O_RDONLY) = 3 [pid 14727] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14727] exit_group(0) = ? [pid 14727] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14727, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14728 ./strace-static-x86_64: Process 14728 attached [pid 14728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14728] setpgid(0, 0) = 0 [pid 14728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14728] write(3, "1000", 4) = 4 [pid 14728] close(3) = 0 [pid 14728] memfd_create("syzkaller", 0) = 3 [pid 14728] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14728] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14728] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14728] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14728] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14728] ioctl(4, LOOP_CLR_FD) = 0 [pid 14728] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14728] close(4) = 0 [pid 14728] close(3) = 0 [pid 14728] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14728] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14728] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14728] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14728] open("./bus", O_RDONLY) = 3 [pid 14728] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14728] exit_group(0) = ? [pid 14728] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14728, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14729 ./strace-static-x86_64: Process 14729 attached [pid 14729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14729] setpgid(0, 0) = 0 [pid 14729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14729] write(3, "1000", 4) = 4 [pid 14729] close(3) = 0 [pid 14729] memfd_create("syzkaller", 0) = 3 [pid 14729] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14729] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14729] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14729] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14729] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14729] ioctl(4, LOOP_CLR_FD) = 0 [pid 14729] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14729] close(4) = 0 [pid 14729] close(3) = 0 [pid 14729] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14729] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14729] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14729] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14729] open("./bus", O_RDONLY) = 3 [pid 14729] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14729] exit_group(0) = ? [pid 14729] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14729, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14730 ./strace-static-x86_64: Process 14730 attached [pid 14730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14730] setpgid(0, 0) = 0 [pid 14730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14730] write(3, "1000", 4) = 4 [pid 14730] close(3) = 0 [pid 14730] memfd_create("syzkaller", 0) = 3 [pid 14730] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14730] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14730] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14730] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14730] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14730] ioctl(4, LOOP_CLR_FD) = 0 [pid 14730] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14730] close(4) = 0 [pid 14730] close(3) = 0 [pid 14730] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14730] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14730] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14730] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14730] open("./bus", O_RDONLY) = 3 [pid 14730] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14730] exit_group(0) = ? [pid 14730] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14730, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14731 ./strace-static-x86_64: Process 14731 attached [pid 14731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14731] setpgid(0, 0) = 0 [pid 14731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14731] write(3, "1000", 4) = 4 [pid 14731] close(3) = 0 [pid 14731] memfd_create("syzkaller", 0) = 3 [pid 14731] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14731] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14731] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14731] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14731] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14731] ioctl(4, LOOP_CLR_FD) = 0 [pid 14731] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14731] close(4) = 0 [pid 14731] close(3) = 0 [pid 14731] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14731] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14731] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14731] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14731] open("./bus", O_RDONLY) = 3 [pid 14731] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14731] exit_group(0) = ? [pid 14731] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14731, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14732 ./strace-static-x86_64: Process 14732 attached [pid 14732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14732] setpgid(0, 0) = 0 [pid 14732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14732] write(3, "1000", 4) = 4 [pid 14732] close(3) = 0 [pid 14732] memfd_create("syzkaller", 0) = 3 [pid 14732] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14732] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14732] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14732] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14732] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14732] ioctl(4, LOOP_CLR_FD) = 0 [pid 14732] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14732] close(4) = 0 [pid 14732] close(3) = 0 [pid 14732] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14732] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14732] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14732] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14732] open("./bus", O_RDONLY) = 3 [pid 14732] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14732] exit_group(0) = ? [pid 14732] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14732, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14733 ./strace-static-x86_64: Process 14733 attached [pid 14733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14733] setpgid(0, 0) = 0 [pid 14733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14733] write(3, "1000", 4) = 4 [pid 14733] close(3) = 0 [pid 14733] memfd_create("syzkaller", 0) = 3 [pid 14733] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14733] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14733] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14733] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14733] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14733] ioctl(4, LOOP_CLR_FD) = 0 [pid 14733] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14733] close(4) = 0 [pid 14733] close(3) = 0 [pid 14733] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14733] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14733] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14733] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14733] open("./bus", O_RDONLY) = 3 [pid 14733] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14733] exit_group(0) = ? [pid 14733] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14733, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14734 ./strace-static-x86_64: Process 14734 attached [pid 14734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14734] setpgid(0, 0) = 0 [pid 14734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14734] write(3, "1000", 4) = 4 [pid 14734] close(3) = 0 [pid 14734] memfd_create("syzkaller", 0) = 3 [pid 14734] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14734] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14734] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14734] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14734] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14734] ioctl(4, LOOP_CLR_FD) = 0 [pid 14734] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14734] close(4) = 0 [pid 14734] close(3) = 0 [pid 14734] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14734] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14734] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14734] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14734] open("./bus", O_RDONLY) = 3 [pid 14734] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14734] exit_group(0) = ? [pid 14734] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14734, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14735 ./strace-static-x86_64: Process 14735 attached [pid 14735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14735] setpgid(0, 0) = 0 [pid 14735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14735] write(3, "1000", 4) = 4 [pid 14735] close(3) = 0 [pid 14735] memfd_create("syzkaller", 0) = 3 [pid 14735] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14735] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14735] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14735] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14735] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14735] ioctl(4, LOOP_CLR_FD) = 0 [pid 14735] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14735] close(4) = 0 [pid 14735] close(3) = 0 [pid 14735] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14735] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14735] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14735] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14735] open("./bus", O_RDONLY) = 3 [pid 14735] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14735] exit_group(0) = ? [pid 14735] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14735, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14736 ./strace-static-x86_64: Process 14736 attached [pid 14736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14736] setpgid(0, 0) = 0 [pid 14736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14736] write(3, "1000", 4) = 4 [pid 14736] close(3) = 0 [pid 14736] memfd_create("syzkaller", 0) = 3 [pid 14736] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14736] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14736] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14736] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14736] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14736] ioctl(4, LOOP_CLR_FD) = 0 [pid 14736] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14736] close(4) = 0 [pid 14736] close(3) = 0 [pid 14736] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14736] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14736] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14736] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14736] open("./bus", O_RDONLY) = 3 [pid 14736] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14736] exit_group(0) = ? [pid 14736] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14736, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14737 ./strace-static-x86_64: Process 14737 attached [pid 14737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14737] setpgid(0, 0) = 0 [pid 14737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14737] write(3, "1000", 4) = 4 [pid 14737] close(3) = 0 [pid 14737] memfd_create("syzkaller", 0) = 3 [pid 14737] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14737] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14737] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14737] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14737] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14737] ioctl(4, LOOP_CLR_FD) = 0 [pid 14737] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14737] close(4) = 0 [pid 14737] close(3) = 0 [pid 14737] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14737] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14737] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14737] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14737] open("./bus", O_RDONLY) = 3 [pid 14737] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14737] exit_group(0) = ? [pid 14737] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14737, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14738 attached , child_tidptr=0x5555575235d0) = 14738 [pid 14738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14738] setpgid(0, 0) = 0 [pid 14738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14738] write(3, "1000", 4) = 4 [pid 14738] close(3) = 0 [pid 14738] memfd_create("syzkaller", 0) = 3 [pid 14738] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14738] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14738] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14738] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14738] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14738] ioctl(4, LOOP_CLR_FD) = 0 [pid 14738] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14738] close(4) = 0 [pid 14738] close(3) = 0 [pid 14738] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14738] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14738] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14738] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14738] open("./bus", O_RDONLY) = 3 [pid 14738] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14738] exit_group(0) = ? [pid 14738] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14738, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14739 ./strace-static-x86_64: Process 14739 attached [pid 14739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14739] setpgid(0, 0) = 0 [pid 14739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14739] write(3, "1000", 4) = 4 [pid 14739] close(3) = 0 [pid 14739] memfd_create("syzkaller", 0) = 3 [pid 14739] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14739] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14739] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14739] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14739] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14739] ioctl(4, LOOP_CLR_FD) = 0 [pid 14739] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14739] close(4) = 0 [pid 14739] close(3) = 0 [pid 14739] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14739] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14739] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14739] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14739] open("./bus", O_RDONLY) = 3 [pid 14739] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14739] exit_group(0) = ? [pid 14739] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14739, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14740 ./strace-static-x86_64: Process 14740 attached [pid 14740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14740] setpgid(0, 0) = 0 [pid 14740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14740] write(3, "1000", 4) = 4 [pid 14740] close(3) = 0 [pid 14740] memfd_create("syzkaller", 0) = 3 [pid 14740] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14740] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14740] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14740] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14740] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14740] ioctl(4, LOOP_CLR_FD) = 0 [pid 14740] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14740] close(4) = 0 [pid 14740] close(3) = 0 [pid 14740] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14740] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14740] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14740] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14740] open("./bus", O_RDONLY) = 3 [pid 14740] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14740] exit_group(0) = ? [pid 14740] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14740, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14741 ./strace-static-x86_64: Process 14741 attached [pid 14741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14741] setpgid(0, 0) = 0 [pid 14741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14741] write(3, "1000", 4) = 4 [pid 14741] close(3) = 0 [pid 14741] memfd_create("syzkaller", 0) = 3 [pid 14741] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14741] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14741] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14741] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14741] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14741] ioctl(4, LOOP_CLR_FD) = 0 [pid 14741] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14741] close(4) = 0 [pid 14741] close(3) = 0 [pid 14741] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14741] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14741] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14741] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14741] open("./bus", O_RDONLY) = 3 [pid 14741] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14741] exit_group(0) = ? [pid 14741] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14741, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14742 attached , child_tidptr=0x5555575235d0) = 14742 [pid 14742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14742] setpgid(0, 0) = 0 [pid 14742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14742] write(3, "1000", 4) = 4 [pid 14742] close(3) = 0 [pid 14742] memfd_create("syzkaller", 0) = 3 [pid 14742] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14742] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14742] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14742] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14742] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14742] ioctl(4, LOOP_CLR_FD) = 0 [pid 14742] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14742] close(4) = 0 [pid 14742] close(3) = 0 [pid 14742] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14742] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14742] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14742] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14742] open("./bus", O_RDONLY) = 3 [pid 14742] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14742] exit_group(0) = ? [pid 14742] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14742, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14743 ./strace-static-x86_64: Process 14743 attached [pid 14743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14743] setpgid(0, 0) = 0 [pid 14743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14743] write(3, "1000", 4) = 4 [pid 14743] close(3) = 0 [pid 14743] memfd_create("syzkaller", 0) = 3 [pid 14743] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14743] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14743] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14743] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14743] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14743] ioctl(4, LOOP_CLR_FD) = 0 [pid 14743] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14743] close(4) = 0 [pid 14743] close(3) = 0 [pid 14743] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14743] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14743] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14743] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14743] open("./bus", O_RDONLY) = 3 [pid 14743] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14743] exit_group(0) = ? [pid 14743] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14743, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14744 attached , child_tidptr=0x5555575235d0) = 14744 [pid 14744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14744] setpgid(0, 0) = 0 [pid 14744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14744] write(3, "1000", 4) = 4 [pid 14744] close(3) = 0 [pid 14744] memfd_create("syzkaller", 0) = 3 [pid 14744] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14744] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14744] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14744] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14744] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14744] ioctl(4, LOOP_CLR_FD) = 0 [pid 14744] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14744] close(4) = 0 [pid 14744] close(3) = 0 [pid 14744] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14744] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14744] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14744] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14744] open("./bus", O_RDONLY) = 3 [pid 14744] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14744] exit_group(0) = ? [pid 14744] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14744, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14745 ./strace-static-x86_64: Process 14745 attached [pid 14745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14745] setpgid(0, 0) = 0 [pid 14745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14745] write(3, "1000", 4) = 4 [pid 14745] close(3) = 0 [pid 14745] memfd_create("syzkaller", 0) = 3 [pid 14745] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14745] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14745] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14745] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14745] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14745] ioctl(4, LOOP_CLR_FD) = 0 [pid 14745] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14745] close(4) = 0 [pid 14745] close(3) = 0 [pid 14745] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14745] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14745] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14745] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14745] open("./bus", O_RDONLY) = 3 [pid 14745] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14745] exit_group(0) = ? [pid 14745] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14745, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14746 ./strace-static-x86_64: Process 14746 attached [pid 14746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14746] setpgid(0, 0) = 0 [pid 14746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14746] write(3, "1000", 4) = 4 [pid 14746] close(3) = 0 [pid 14746] memfd_create("syzkaller", 0) = 3 [pid 14746] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14746] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14746] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14746] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14746] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14746] ioctl(4, LOOP_CLR_FD) = 0 [pid 14746] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14746] close(4) = 0 [pid 14746] close(3) = 0 [pid 14746] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14746] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14746] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14746] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14746] open("./bus", O_RDONLY) = 3 [pid 14746] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14746] exit_group(0) = ? [pid 14746] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14746, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14747 ./strace-static-x86_64: Process 14747 attached [pid 14747] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14747] setpgid(0, 0) = 0 [pid 14747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14747] write(3, "1000", 4) = 4 [pid 14747] close(3) = 0 [pid 14747] memfd_create("syzkaller", 0) = 3 [pid 14747] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14747] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14747] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14747] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14747] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14747] ioctl(4, LOOP_CLR_FD) = 0 [pid 14747] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14747] close(4) = 0 [pid 14747] close(3) = 0 [pid 14747] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14747] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14747] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14747] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14747] open("./bus", O_RDONLY) = 3 [pid 14747] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14747] exit_group(0) = ? [pid 14747] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14747, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14748 ./strace-static-x86_64: Process 14748 attached [pid 14748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14748] setpgid(0, 0) = 0 [pid 14748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14748] write(3, "1000", 4) = 4 [pid 14748] close(3) = 0 [pid 14748] memfd_create("syzkaller", 0) = 3 [pid 14748] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14748] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14748] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14748] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14748] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14748] ioctl(4, LOOP_CLR_FD) = 0 [pid 14748] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14748] close(4) = 0 [pid 14748] close(3) = 0 [pid 14748] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14748] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14748] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14748] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14748] open("./bus", O_RDONLY) = 3 [pid 14748] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14748] exit_group(0) = ? [pid 14748] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14748, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14749 attached , child_tidptr=0x5555575235d0) = 14749 [pid 14749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14749] setpgid(0, 0) = 0 [pid 14749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14749] write(3, "1000", 4) = 4 [pid 14749] close(3) = 0 [pid 14749] memfd_create("syzkaller", 0) = 3 [pid 14749] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14749] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14749] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14749] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14749] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14749] ioctl(4, LOOP_CLR_FD) = 0 [pid 14749] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14749] close(4) = 0 [pid 14749] close(3) = 0 [pid 14749] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14749] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14749] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14749] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14749] open("./bus", O_RDONLY) = 3 [pid 14749] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14749] exit_group(0) = ? [pid 14749] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14749, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14750 ./strace-static-x86_64: Process 14750 attached [pid 14750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14750] setpgid(0, 0) = 0 [pid 14750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14750] write(3, "1000", 4) = 4 [pid 14750] close(3) = 0 [pid 14750] memfd_create("syzkaller", 0) = 3 [pid 14750] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14750] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14750] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14750] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14750] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14750] ioctl(4, LOOP_CLR_FD) = 0 [pid 14750] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14750] close(4) = 0 [pid 14750] close(3) = 0 [pid 14750] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14750] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14750] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14750] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14750] open("./bus", O_RDONLY) = 3 [pid 14750] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14750] exit_group(0) = ? [pid 14750] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14750, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14751 ./strace-static-x86_64: Process 14751 attached [pid 14751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14751] setpgid(0, 0) = 0 [pid 14751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14751] write(3, "1000", 4) = 4 [pid 14751] close(3) = 0 [pid 14751] memfd_create("syzkaller", 0) = 3 [pid 14751] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14751] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14751] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14751] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14751] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14751] ioctl(4, LOOP_CLR_FD) = 0 [pid 14751] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14751] close(4) = 0 [pid 14751] close(3) = 0 [pid 14751] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14751] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14751] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14751] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14751] open("./bus", O_RDONLY) = 3 [pid 14751] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14751] exit_group(0) = ? [pid 14751] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14751, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14752 ./strace-static-x86_64: Process 14752 attached [pid 14752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14752] setpgid(0, 0) = 0 [pid 14752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14752] write(3, "1000", 4) = 4 [pid 14752] close(3) = 0 [pid 14752] memfd_create("syzkaller", 0) = 3 [pid 14752] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14752] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14752] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14752] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14752] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14752] ioctl(4, LOOP_CLR_FD) = 0 [pid 14752] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14752] close(4) = 0 [pid 14752] close(3) = 0 [pid 14752] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14752] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14752] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14752] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14752] open("./bus", O_RDONLY) = 3 [pid 14752] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14752] exit_group(0) = ? [pid 14752] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14752, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14753 attached , child_tidptr=0x5555575235d0) = 14753 [pid 14753] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14753] setpgid(0, 0) = 0 [pid 14753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14753] write(3, "1000", 4) = 4 [pid 14753] close(3) = 0 [pid 14753] memfd_create("syzkaller", 0) = 3 [pid 14753] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14753] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14753] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14753] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14753] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14753] ioctl(4, LOOP_CLR_FD) = 0 [pid 14753] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14753] close(4) = 0 [pid 14753] close(3) = 0 [pid 14753] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14753] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14753] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14753] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14753] open("./bus", O_RDONLY) = 3 [pid 14753] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14753] exit_group(0) = ? [pid 14753] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14753, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14754 attached , child_tidptr=0x5555575235d0) = 14754 [pid 14754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14754] setpgid(0, 0) = 0 [pid 14754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14754] write(3, "1000", 4) = 4 [pid 14754] close(3) = 0 [pid 14754] memfd_create("syzkaller", 0) = 3 [pid 14754] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14754] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14754] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14754] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14754] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14754] ioctl(4, LOOP_CLR_FD) = 0 [pid 14754] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14754] close(4) = 0 [pid 14754] close(3) = 0 [pid 14754] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14754] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14754] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14754] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14754] open("./bus", O_RDONLY) = 3 [pid 14754] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14754] exit_group(0) = ? [pid 14754] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14754, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14755 ./strace-static-x86_64: Process 14755 attached [pid 14755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14755] setpgid(0, 0) = 0 [pid 14755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14755] write(3, "1000", 4) = 4 [pid 14755] close(3) = 0 [pid 14755] memfd_create("syzkaller", 0) = 3 [pid 14755] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14755] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14755] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14755] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14755] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14755] ioctl(4, LOOP_CLR_FD) = 0 [pid 14755] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14755] close(4) = 0 [pid 14755] close(3) = 0 [pid 14755] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14755] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14755] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14755] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14755] open("./bus", O_RDONLY) = 3 [pid 14755] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14755] exit_group(0) = ? [pid 14755] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14755, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14756 ./strace-static-x86_64: Process 14756 attached [pid 14756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14756] setpgid(0, 0) = 0 [pid 14756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14756] write(3, "1000", 4) = 4 [pid 14756] close(3) = 0 [pid 14756] memfd_create("syzkaller", 0) = 3 [pid 14756] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14756] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14756] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14756] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14756] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14756] ioctl(4, LOOP_CLR_FD) = 0 [pid 14756] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14756] close(4) = 0 [pid 14756] close(3) = 0 [pid 14756] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14756] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14756] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14756] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14756] open("./bus", O_RDONLY) = 3 [pid 14756] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14756] exit_group(0) = ? [pid 14756] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14756, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14757 ./strace-static-x86_64: Process 14757 attached [pid 14757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14757] setpgid(0, 0) = 0 [pid 14757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14757] write(3, "1000", 4) = 4 [pid 14757] close(3) = 0 [pid 14757] memfd_create("syzkaller", 0) = 3 [pid 14757] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14757] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14757] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14757] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14757] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14757] ioctl(4, LOOP_CLR_FD) = 0 [pid 14757] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14757] close(4) = 0 [pid 14757] close(3) = 0 [pid 14757] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14757] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14757] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14757] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14757] open("./bus", O_RDONLY) = 3 [pid 14757] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14757] exit_group(0) = ? [pid 14757] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14757, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14758 ./strace-static-x86_64: Process 14758 attached [pid 14758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14758] setpgid(0, 0) = 0 [pid 14758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14758] write(3, "1000", 4) = 4 [pid 14758] close(3) = 0 [pid 14758] memfd_create("syzkaller", 0) = 3 [pid 14758] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14758] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14758] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14758] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14758] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14758] ioctl(4, LOOP_CLR_FD) = 0 [pid 14758] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14758] close(4) = 0 [pid 14758] close(3) = 0 [pid 14758] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14758] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14758] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14758] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14758] open("./bus", O_RDONLY) = 3 [pid 14758] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14758] exit_group(0) = ? [pid 14758] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14758, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14759 ./strace-static-x86_64: Process 14759 attached [pid 14759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14759] setpgid(0, 0) = 0 [pid 14759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14759] write(3, "1000", 4) = 4 [pid 14759] close(3) = 0 [pid 14759] memfd_create("syzkaller", 0) = 3 [pid 14759] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14759] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14759] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14759] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14759] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14759] ioctl(4, LOOP_CLR_FD) = 0 [pid 14759] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14759] close(4) = 0 [pid 14759] close(3) = 0 [pid 14759] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14759] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14759] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14759] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14759] open("./bus", O_RDONLY) = 3 [pid 14759] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14759] exit_group(0) = ? [pid 14759] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14759, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14760 attached , child_tidptr=0x5555575235d0) = 14760 [pid 14760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14760] setpgid(0, 0) = 0 [pid 14760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14760] write(3, "1000", 4) = 4 [pid 14760] close(3) = 0 [pid 14760] memfd_create("syzkaller", 0) = 3 [pid 14760] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14760] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14760] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14760] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14760] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14760] ioctl(4, LOOP_CLR_FD) = 0 [pid 14760] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14760] close(4) = 0 [pid 14760] close(3) = 0 [pid 14760] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14760] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14760] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14760] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14760] open("./bus", O_RDONLY) = 3 [pid 14760] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14760] exit_group(0) = ? [pid 14760] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14760, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14761 ./strace-static-x86_64: Process 14761 attached [pid 14761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14761] setpgid(0, 0) = 0 [pid 14761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14761] write(3, "1000", 4) = 4 [pid 14761] close(3) = 0 [pid 14761] memfd_create("syzkaller", 0) = 3 [pid 14761] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14761] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14761] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14761] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14761] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14761] ioctl(4, LOOP_CLR_FD) = 0 [pid 14761] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14761] close(4) = 0 [pid 14761] close(3) = 0 [pid 14761] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14761] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14761] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14761] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14761] open("./bus", O_RDONLY) = 3 [pid 14761] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14761] exit_group(0) = ? [pid 14761] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14761, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14762 attached , child_tidptr=0x5555575235d0) = 14762 [pid 14762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14762] setpgid(0, 0) = 0 [pid 14762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14762] write(3, "1000", 4) = 4 [pid 14762] close(3) = 0 [pid 14762] memfd_create("syzkaller", 0) = 3 [pid 14762] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14762] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14762] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14762] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14762] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14762] ioctl(4, LOOP_CLR_FD) = 0 [pid 14762] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14762] close(4) = 0 [pid 14762] close(3) = 0 [pid 14762] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14762] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14762] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14762] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14762] open("./bus", O_RDONLY) = 3 [pid 14762] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14762] exit_group(0) = ? [pid 14762] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14762, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14763 attached , child_tidptr=0x5555575235d0) = 14763 [pid 14763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14763] setpgid(0, 0) = 0 [pid 14763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14763] write(3, "1000", 4) = 4 [pid 14763] close(3) = 0 [pid 14763] memfd_create("syzkaller", 0) = 3 [pid 14763] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14763] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14763] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14763] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14763] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14763] ioctl(4, LOOP_CLR_FD) = 0 [pid 14763] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14763] close(4) = 0 [pid 14763] close(3) = 0 [pid 14763] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14763] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14763] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14763] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14763] open("./bus", O_RDONLY) = 3 [pid 14763] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14763] exit_group(0) = ? [pid 14763] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14763, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14764 attached , child_tidptr=0x5555575235d0) = 14764 [pid 14764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14764] setpgid(0, 0) = 0 [pid 14764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14764] write(3, "1000", 4) = 4 [pid 14764] close(3) = 0 [pid 14764] memfd_create("syzkaller", 0) = 3 [pid 14764] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14764] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14764] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14764] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14764] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14764] ioctl(4, LOOP_CLR_FD) = 0 [pid 14764] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14764] close(4) = 0 [pid 14764] close(3) = 0 [pid 14764] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14764] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14764] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14764] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14764] open("./bus", O_RDONLY) = 3 [pid 14764] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14764] exit_group(0) = ? [pid 14764] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14764, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14765 attached , child_tidptr=0x5555575235d0) = 14765 [pid 14765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14765] setpgid(0, 0) = 0 [pid 14765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14765] write(3, "1000", 4) = 4 [pid 14765] close(3) = 0 [pid 14765] memfd_create("syzkaller", 0) = 3 [pid 14765] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14765] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14765] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14765] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14765] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14765] ioctl(4, LOOP_CLR_FD) = 0 [pid 14765] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14765] close(4) = 0 [pid 14765] close(3) = 0 [pid 14765] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14765] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14765] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14765] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14765] open("./bus", O_RDONLY) = 3 [pid 14765] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14765] exit_group(0) = ? [pid 14765] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14765, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14766 ./strace-static-x86_64: Process 14766 attached [pid 14766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14766] setpgid(0, 0) = 0 [pid 14766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14766] write(3, "1000", 4) = 4 [pid 14766] close(3) = 0 [pid 14766] memfd_create("syzkaller", 0) = 3 [pid 14766] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14766] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14766] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14766] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14766] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14766] ioctl(4, LOOP_CLR_FD) = 0 [pid 14766] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14766] close(4) = 0 [pid 14766] close(3) = 0 [pid 14766] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14766] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14766] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14766] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14766] open("./bus", O_RDONLY) = 3 [pid 14766] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14766] exit_group(0) = ? [pid 14766] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14766, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14767 attached , child_tidptr=0x5555575235d0) = 14767 [pid 14767] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14767] setpgid(0, 0) = 0 [pid 14767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14767] write(3, "1000", 4) = 4 [pid 14767] close(3) = 0 [pid 14767] memfd_create("syzkaller", 0) = 3 [pid 14767] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14767] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14767] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14767] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14767] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14767] ioctl(4, LOOP_CLR_FD) = 0 [pid 14767] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14767] close(4) = 0 [pid 14767] close(3) = 0 [pid 14767] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14767] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14767] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14767] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14767] open("./bus", O_RDONLY) = 3 [pid 14767] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14767] exit_group(0) = ? [pid 14767] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14767, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14768 attached , child_tidptr=0x5555575235d0) = 14768 [pid 14768] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14768] setpgid(0, 0) = 0 [pid 14768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14768] write(3, "1000", 4) = 4 [pid 14768] close(3) = 0 [pid 14768] memfd_create("syzkaller", 0) = 3 [pid 14768] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14768] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14768] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14768] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14768] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14768] ioctl(4, LOOP_CLR_FD) = 0 [pid 14768] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14768] close(4) = 0 [pid 14768] close(3) = 0 [pid 14768] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14768] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14768] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14768] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14768] open("./bus", O_RDONLY) = 3 [pid 14768] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14768] exit_group(0) = ? [pid 14768] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14768, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14769 attached , child_tidptr=0x5555575235d0) = 14769 [pid 14769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14769] setpgid(0, 0) = 0 [pid 14769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14769] write(3, "1000", 4) = 4 [pid 14769] close(3) = 0 [pid 14769] memfd_create("syzkaller", 0) = 3 [pid 14769] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14769] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14769] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14769] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14769] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14769] ioctl(4, LOOP_CLR_FD) = 0 [pid 14769] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14769] close(4) = 0 [pid 14769] close(3) = 0 [pid 14769] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14769] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14769] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14769] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14769] open("./bus", O_RDONLY) = 3 [pid 14769] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14769] exit_group(0) = ? [pid 14769] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14769, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14770 attached , child_tidptr=0x5555575235d0) = 14770 [pid 14770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14770] setpgid(0, 0) = 0 [pid 14770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14770] write(3, "1000", 4) = 4 [pid 14770] close(3) = 0 [pid 14770] memfd_create("syzkaller", 0) = 3 [pid 14770] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14770] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14770] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14770] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14770] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14770] ioctl(4, LOOP_CLR_FD) = 0 [pid 14770] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14770] close(4) = 0 [pid 14770] close(3) = 0 [pid 14770] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14770] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14770] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14770] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14770] open("./bus", O_RDONLY) = 3 [pid 14770] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14770] exit_group(0) = ? [pid 14770] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14770, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14771 ./strace-static-x86_64: Process 14771 attached [pid 14771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14771] setpgid(0, 0) = 0 [pid 14771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14771] write(3, "1000", 4) = 4 [pid 14771] close(3) = 0 [pid 14771] memfd_create("syzkaller", 0) = 3 [pid 14771] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14771] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14771] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14771] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14771] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14771] ioctl(4, LOOP_CLR_FD) = 0 [pid 14771] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14771] close(4) = 0 [pid 14771] close(3) = 0 [pid 14771] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14771] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14771] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14771] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14771] open("./bus", O_RDONLY) = 3 [pid 14771] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14771] exit_group(0) = ? [pid 14771] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14771, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14772 attached , child_tidptr=0x5555575235d0) = 14772 [pid 14772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14772] setpgid(0, 0) = 0 [pid 14772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14772] write(3, "1000", 4) = 4 [pid 14772] close(3) = 0 [pid 14772] memfd_create("syzkaller", 0) = 3 [pid 14772] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14772] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14772] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14772] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14772] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14772] ioctl(4, LOOP_CLR_FD) = 0 [pid 14772] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14772] close(4) = 0 [pid 14772] close(3) = 0 [pid 14772] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14772] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14772] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14772] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14772] open("./bus", O_RDONLY) = 3 [pid 14772] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14772] exit_group(0) = ? [pid 14772] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14772, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14773 ./strace-static-x86_64: Process 14773 attached [pid 14773] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14773] setpgid(0, 0) = 0 [pid 14773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14773] write(3, "1000", 4) = 4 [pid 14773] close(3) = 0 [pid 14773] memfd_create("syzkaller", 0) = 3 [pid 14773] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14773] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14773] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14773] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14773] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14773] ioctl(4, LOOP_CLR_FD) = 0 [pid 14773] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14773] close(4) = 0 [pid 14773] close(3) = 0 [pid 14773] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14773] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14773] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14773] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14773] open("./bus", O_RDONLY) = 3 [pid 14773] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14773] exit_group(0) = ? [pid 14773] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14773, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14774 attached , child_tidptr=0x5555575235d0) = 14774 [pid 14774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14774] setpgid(0, 0) = 0 [pid 14774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14774] write(3, "1000", 4) = 4 [pid 14774] close(3) = 0 [pid 14774] memfd_create("syzkaller", 0) = 3 [pid 14774] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14774] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14774] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14774] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14774] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14774] ioctl(4, LOOP_CLR_FD) = 0 [pid 14774] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14774] close(4) = 0 [pid 14774] close(3) = 0 [pid 14774] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14774] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14774] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14774] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14774] open("./bus", O_RDONLY) = 3 [pid 14774] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14774] exit_group(0) = ? [pid 14774] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14774, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14775 ./strace-static-x86_64: Process 14775 attached [pid 14775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14775] setpgid(0, 0) = 0 [pid 14775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14775] write(3, "1000", 4) = 4 [pid 14775] close(3) = 0 [pid 14775] memfd_create("syzkaller", 0) = 3 [pid 14775] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14775] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14775] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14775] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14775] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14775] ioctl(4, LOOP_CLR_FD) = 0 [pid 14775] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14775] close(4) = 0 [pid 14775] close(3) = 0 [pid 14775] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14775] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14775] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14775] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14775] open("./bus", O_RDONLY) = 3 [pid 14775] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14775] exit_group(0) = ? [pid 14775] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14775, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14776 ./strace-static-x86_64: Process 14776 attached [pid 14776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14776] setpgid(0, 0) = 0 [pid 14776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14776] write(3, "1000", 4) = 4 [pid 14776] close(3) = 0 [pid 14776] memfd_create("syzkaller", 0) = 3 [pid 14776] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14776] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14776] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14776] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14776] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14776] ioctl(4, LOOP_CLR_FD) = 0 [pid 14776] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14776] close(4) = 0 [pid 14776] close(3) = 0 [pid 14776] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14776] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14776] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14776] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14776] open("./bus", O_RDONLY) = 3 [pid 14776] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14776] exit_group(0) = ? [pid 14776] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14776, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14777 attached , child_tidptr=0x5555575235d0) = 14777 [pid 14777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14777] setpgid(0, 0) = 0 [pid 14777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14777] write(3, "1000", 4) = 4 [pid 14777] close(3) = 0 [pid 14777] memfd_create("syzkaller", 0) = 3 [pid 14777] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14777] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14777] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14777] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14777] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14777] ioctl(4, LOOP_CLR_FD) = 0 [pid 14777] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14777] close(4) = 0 [pid 14777] close(3) = 0 [pid 14777] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14777] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14777] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14777] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14777] open("./bus", O_RDONLY) = 3 [pid 14777] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14777] exit_group(0) = ? [pid 14777] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14777, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14778 ./strace-static-x86_64: Process 14778 attached [pid 14778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14778] setpgid(0, 0) = 0 [pid 14778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14778] write(3, "1000", 4) = 4 [pid 14778] close(3) = 0 [pid 14778] memfd_create("syzkaller", 0) = 3 [pid 14778] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14778] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14778] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14778] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14778] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14778] ioctl(4, LOOP_CLR_FD) = 0 [pid 14778] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14778] close(4) = 0 [pid 14778] close(3) = 0 [pid 14778] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14778] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14778] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14778] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14778] open("./bus", O_RDONLY) = 3 [pid 14778] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14778] exit_group(0) = ? [pid 14778] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14778, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14779 ./strace-static-x86_64: Process 14779 attached [pid 14779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14779] setpgid(0, 0) = 0 [pid 14779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14779] write(3, "1000", 4) = 4 [pid 14779] close(3) = 0 [pid 14779] memfd_create("syzkaller", 0) = 3 [pid 14779] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14779] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14779] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14779] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14779] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14779] ioctl(4, LOOP_CLR_FD) = 0 [pid 14779] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14779] close(4) = 0 [pid 14779] close(3) = 0 [pid 14779] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14779] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14779] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14779] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14779] open("./bus", O_RDONLY) = 3 [pid 14779] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14779] exit_group(0) = ? [pid 14779] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14779, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14780 ./strace-static-x86_64: Process 14780 attached [pid 14780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14780] setpgid(0, 0) = 0 [pid 14780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14780] write(3, "1000", 4) = 4 [pid 14780] close(3) = 0 [pid 14780] memfd_create("syzkaller", 0) = 3 [pid 14780] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14780] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14780] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14780] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14780] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14780] ioctl(4, LOOP_CLR_FD) = 0 [pid 14780] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14780] close(4) = 0 [pid 14780] close(3) = 0 [pid 14780] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14780] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14780] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14780] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14780] open("./bus", O_RDONLY) = 3 [pid 14780] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14780] exit_group(0) = ? [pid 14780] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14780, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14781 ./strace-static-x86_64: Process 14781 attached [pid 14781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14781] setpgid(0, 0) = 0 [pid 14781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14781] write(3, "1000", 4) = 4 [pid 14781] close(3) = 0 [pid 14781] memfd_create("syzkaller", 0) = 3 [pid 14781] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14781] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14781] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14781] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14781] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14781] ioctl(4, LOOP_CLR_FD) = 0 [pid 14781] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14781] close(4) = 0 [pid 14781] close(3) = 0 [pid 14781] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14781] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14781] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14781] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14781] open("./bus", O_RDONLY) = 3 [pid 14781] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14781] exit_group(0) = ? [pid 14781] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14781, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14782 ./strace-static-x86_64: Process 14782 attached [pid 14782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14782] setpgid(0, 0) = 0 [pid 14782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14782] write(3, "1000", 4) = 4 [pid 14782] close(3) = 0 [pid 14782] memfd_create("syzkaller", 0) = 3 [pid 14782] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14782] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14782] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14782] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14782] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14782] ioctl(4, LOOP_CLR_FD) = 0 [pid 14782] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14782] close(4) = 0 [pid 14782] close(3) = 0 [pid 14782] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14782] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14782] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14782] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14782] open("./bus", O_RDONLY) = 3 [pid 14782] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14782] exit_group(0) = ? [pid 14782] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14782, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14783 ./strace-static-x86_64: Process 14783 attached [pid 14783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14783] setpgid(0, 0) = 0 [pid 14783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14783] write(3, "1000", 4) = 4 [pid 14783] close(3) = 0 [pid 14783] memfd_create("syzkaller", 0) = 3 [pid 14783] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14783] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14783] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14783] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14783] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14783] ioctl(4, LOOP_CLR_FD) = 0 [pid 14783] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14783] close(4) = 0 [pid 14783] close(3) = 0 [pid 14783] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14783] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14783] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14783] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14783] open("./bus", O_RDONLY) = 3 [pid 14783] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14783] exit_group(0) = ? [pid 14783] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14783, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14784 ./strace-static-x86_64: Process 14784 attached [pid 14784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14784] setpgid(0, 0) = 0 [pid 14784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14784] write(3, "1000", 4) = 4 [pid 14784] close(3) = 0 [pid 14784] memfd_create("syzkaller", 0) = 3 [pid 14784] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14784] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14784] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14784] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14784] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14784] ioctl(4, LOOP_CLR_FD) = 0 [pid 14784] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14784] close(4) = 0 [pid 14784] close(3) = 0 [pid 14784] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14784] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14784] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14784] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14784] open("./bus", O_RDONLY) = 3 [pid 14784] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14784] exit_group(0) = ? [pid 14784] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14784, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14785 attached , child_tidptr=0x5555575235d0) = 14785 [pid 14785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14785] setpgid(0, 0) = 0 [pid 14785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14785] write(3, "1000", 4) = 4 [pid 14785] close(3) = 0 [pid 14785] memfd_create("syzkaller", 0) = 3 [pid 14785] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14785] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14785] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14785] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14785] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14785] ioctl(4, LOOP_CLR_FD) = 0 [pid 14785] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14785] close(4) = 0 [pid 14785] close(3) = 0 [pid 14785] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14785] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14785] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14785] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14785] open("./bus", O_RDONLY) = 3 [pid 14785] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14785] exit_group(0) = ? [pid 14785] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14785, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14786 ./strace-static-x86_64: Process 14786 attached [pid 14786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14786] setpgid(0, 0) = 0 [pid 14786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14786] write(3, "1000", 4) = 4 [pid 14786] close(3) = 0 [pid 14786] memfd_create("syzkaller", 0) = 3 [pid 14786] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14786] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14786] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14786] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14786] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14786] ioctl(4, LOOP_CLR_FD) = 0 [pid 14786] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14786] close(4) = 0 [pid 14786] close(3) = 0 [pid 14786] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14786] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14786] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14786] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14786] open("./bus", O_RDONLY) = 3 [pid 14786] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14786] exit_group(0) = ? [pid 14786] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14786, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14787 ./strace-static-x86_64: Process 14787 attached [pid 14787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14787] setpgid(0, 0) = 0 [pid 14787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14787] write(3, "1000", 4) = 4 [pid 14787] close(3) = 0 [pid 14787] memfd_create("syzkaller", 0) = 3 [pid 14787] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14787] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14787] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14787] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14787] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14787] ioctl(4, LOOP_CLR_FD) = 0 [pid 14787] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14787] close(4) = 0 [pid 14787] close(3) = 0 [pid 14787] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14787] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14787] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14787] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14787] open("./bus", O_RDONLY) = 3 [pid 14787] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14787] exit_group(0) = ? [pid 14787] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14787, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14788 attached , child_tidptr=0x5555575235d0) = 14788 [pid 14788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14788] setpgid(0, 0) = 0 [pid 14788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14788] write(3, "1000", 4) = 4 [pid 14788] close(3) = 0 [pid 14788] memfd_create("syzkaller", 0) = 3 [pid 14788] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14788] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14788] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14788] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14788] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14788] ioctl(4, LOOP_CLR_FD) = 0 [pid 14788] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14788] close(4) = 0 [pid 14788] close(3) = 0 [pid 14788] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14788] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14788] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14788] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14788] open("./bus", O_RDONLY) = 3 [pid 14788] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14788] exit_group(0) = ? [pid 14788] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14788, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14789 ./strace-static-x86_64: Process 14789 attached [pid 14789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14789] setpgid(0, 0) = 0 [pid 14789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14789] write(3, "1000", 4) = 4 [pid 14789] close(3) = 0 [pid 14789] memfd_create("syzkaller", 0) = 3 [pid 14789] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14789] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14789] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14789] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14789] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14789] ioctl(4, LOOP_CLR_FD) = 0 [pid 14789] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14789] close(4) = 0 [pid 14789] close(3) = 0 [pid 14789] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14789] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14789] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14789] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14789] open("./bus", O_RDONLY) = 3 [pid 14789] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14789] exit_group(0) = ? [pid 14789] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14789, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14790 ./strace-static-x86_64: Process 14790 attached [pid 14790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14790] setpgid(0, 0) = 0 [pid 14790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14790] write(3, "1000", 4) = 4 [pid 14790] close(3) = 0 [pid 14790] memfd_create("syzkaller", 0) = 3 [pid 14790] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14790] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14790] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14790] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14790] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14790] ioctl(4, LOOP_CLR_FD) = 0 [pid 14790] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14790] close(4) = 0 [pid 14790] close(3) = 0 [pid 14790] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14790] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14790] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14790] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14790] open("./bus", O_RDONLY) = 3 [pid 14790] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14790] exit_group(0) = ? [pid 14790] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14790, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14791 attached , child_tidptr=0x5555575235d0) = 14791 [pid 14791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14791] setpgid(0, 0) = 0 [pid 14791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14791] write(3, "1000", 4) = 4 [pid 14791] close(3) = 0 [pid 14791] memfd_create("syzkaller", 0) = 3 [pid 14791] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14791] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14791] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14791] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14791] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14791] ioctl(4, LOOP_CLR_FD) = 0 [pid 14791] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14791] close(4) = 0 [pid 14791] close(3) = 0 [pid 14791] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14791] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14791] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14791] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14791] open("./bus", O_RDONLY) = 3 [pid 14791] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14791] exit_group(0) = ? [pid 14791] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14791, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14792 ./strace-static-x86_64: Process 14792 attached [pid 14792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14792] setpgid(0, 0) = 0 [pid 14792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14792] write(3, "1000", 4) = 4 [pid 14792] close(3) = 0 [pid 14792] memfd_create("syzkaller", 0) = 3 [pid 14792] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14792] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14792] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14792] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14792] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14792] ioctl(4, LOOP_CLR_FD) = 0 [pid 14792] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14792] close(4) = 0 [pid 14792] close(3) = 0 [pid 14792] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14792] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14792] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14792] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14792] open("./bus", O_RDONLY) = 3 [pid 14792] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14792] exit_group(0) = ? [pid 14792] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14792, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14793 ./strace-static-x86_64: Process 14793 attached [pid 14793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14793] setpgid(0, 0) = 0 [pid 14793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14793] write(3, "1000", 4) = 4 [pid 14793] close(3) = 0 [pid 14793] memfd_create("syzkaller", 0) = 3 [pid 14793] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14793] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14793] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14793] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14793] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14793] ioctl(4, LOOP_CLR_FD) = 0 [pid 14793] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14793] close(4) = 0 [pid 14793] close(3) = 0 [pid 14793] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14793] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14793] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14793] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14793] open("./bus", O_RDONLY) = 3 [pid 14793] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14793] exit_group(0) = ? [pid 14793] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14793, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14794 ./strace-static-x86_64: Process 14794 attached [pid 14794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14794] setpgid(0, 0) = 0 [pid 14794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14794] write(3, "1000", 4) = 4 [pid 14794] close(3) = 0 [pid 14794] memfd_create("syzkaller", 0) = 3 [pid 14794] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14794] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14794] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14794] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14794] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14794] ioctl(4, LOOP_CLR_FD) = 0 [pid 14794] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14794] close(4) = 0 [pid 14794] close(3) = 0 [pid 14794] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14794] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14794] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14794] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14794] open("./bus", O_RDONLY) = 3 [pid 14794] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14794] exit_group(0) = ? [pid 14794] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14794, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14795 ./strace-static-x86_64: Process 14795 attached [pid 14795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14795] setpgid(0, 0) = 0 [pid 14795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14795] write(3, "1000", 4) = 4 [pid 14795] close(3) = 0 [pid 14795] memfd_create("syzkaller", 0) = 3 [pid 14795] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14795] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14795] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14795] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14795] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14795] ioctl(4, LOOP_CLR_FD) = 0 [pid 14795] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14795] close(4) = 0 [pid 14795] close(3) = 0 [pid 14795] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14795] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14795] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14795] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14795] open("./bus", O_RDONLY) = 3 [pid 14795] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14795] exit_group(0) = ? [pid 14795] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14795, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14796 ./strace-static-x86_64: Process 14796 attached [pid 14796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14796] setpgid(0, 0) = 0 [pid 14796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14796] write(3, "1000", 4) = 4 [pid 14796] close(3) = 0 [pid 14796] memfd_create("syzkaller", 0) = 3 [pid 14796] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14796] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14796] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14796] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14796] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14796] ioctl(4, LOOP_CLR_FD) = 0 [pid 14796] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14796] close(4) = 0 [pid 14796] close(3) = 0 [pid 14796] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14796] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14796] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14796] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14796] open("./bus", O_RDONLY) = 3 [pid 14796] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14796] exit_group(0) = ? [pid 14796] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14796, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14797 attached , child_tidptr=0x5555575235d0) = 14797 [pid 14797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14797] setpgid(0, 0) = 0 [pid 14797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14797] write(3, "1000", 4) = 4 [pid 14797] close(3) = 0 [pid 14797] memfd_create("syzkaller", 0) = 3 [pid 14797] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14797] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14797] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14797] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14797] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14797] ioctl(4, LOOP_CLR_FD) = 0 [pid 14797] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14797] close(4) = 0 [pid 14797] close(3) = 0 [pid 14797] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14797] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14797] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14797] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14797] open("./bus", O_RDONLY) = 3 [pid 14797] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14797] exit_group(0) = ? [pid 14797] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14797, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14798 attached , child_tidptr=0x5555575235d0) = 14798 [pid 14798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14798] setpgid(0, 0) = 0 [pid 14798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14798] write(3, "1000", 4) = 4 [pid 14798] close(3) = 0 [pid 14798] memfd_create("syzkaller", 0) = 3 [pid 14798] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14798] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14798] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14798] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14798] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14798] ioctl(4, LOOP_CLR_FD) = 0 [pid 14798] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14798] close(4) = 0 [pid 14798] close(3) = 0 [pid 14798] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14798] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14798] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14798] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14798] open("./bus", O_RDONLY) = 3 [pid 14798] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14798] exit_group(0) = ? [pid 14798] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14798, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14799 ./strace-static-x86_64: Process 14799 attached [pid 14799] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14799] setpgid(0, 0) = 0 [pid 14799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14799] write(3, "1000", 4) = 4 [pid 14799] close(3) = 0 [pid 14799] memfd_create("syzkaller", 0) = 3 [pid 14799] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14799] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14799] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14799] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14799] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14799] ioctl(4, LOOP_CLR_FD) = 0 [pid 14799] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14799] close(4) = 0 [pid 14799] close(3) = 0 [pid 14799] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14799] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14799] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14799] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14799] open("./bus", O_RDONLY) = 3 [pid 14799] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14799] exit_group(0) = ? [pid 14799] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14799, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14800 ./strace-static-x86_64: Process 14800 attached [pid 14800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14800] setpgid(0, 0) = 0 [pid 14800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14800] write(3, "1000", 4) = 4 [pid 14800] close(3) = 0 [pid 14800] memfd_create("syzkaller", 0) = 3 [pid 14800] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14800] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14800] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14800] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14800] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14800] ioctl(4, LOOP_CLR_FD) = 0 [pid 14800] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14800] close(4) = 0 [pid 14800] close(3) = 0 [pid 14800] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14800] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14800] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14800] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14800] open("./bus", O_RDONLY) = 3 [pid 14800] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14800] exit_group(0) = ? [pid 14800] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14800, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14801 ./strace-static-x86_64: Process 14801 attached [pid 14801] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14801] setpgid(0, 0) = 0 [pid 14801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14801] write(3, "1000", 4) = 4 [pid 14801] close(3) = 0 [pid 14801] memfd_create("syzkaller", 0) = 3 [pid 14801] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14801] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14801] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14801] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14801] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14801] ioctl(4, LOOP_CLR_FD) = 0 [pid 14801] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14801] close(4) = 0 [pid 14801] close(3) = 0 [pid 14801] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14801] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14801] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14801] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14801] open("./bus", O_RDONLY) = 3 [pid 14801] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14801] exit_group(0) = ? [pid 14801] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14801, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14802 ./strace-static-x86_64: Process 14802 attached [pid 14802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14802] setpgid(0, 0) = 0 [pid 14802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14802] write(3, "1000", 4) = 4 [pid 14802] close(3) = 0 [pid 14802] memfd_create("syzkaller", 0) = 3 [pid 14802] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14802] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14802] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14802] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14802] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14802] ioctl(4, LOOP_CLR_FD) = 0 [pid 14802] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14802] close(4) = 0 [pid 14802] close(3) = 0 [pid 14802] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14802] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14802] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14802] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14802] open("./bus", O_RDONLY) = 3 [pid 14802] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14802] exit_group(0) = ? [pid 14802] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14802, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14803 ./strace-static-x86_64: Process 14803 attached [pid 14803] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14803] setpgid(0, 0) = 0 [pid 14803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14803] write(3, "1000", 4) = 4 [pid 14803] close(3) = 0 [pid 14803] memfd_create("syzkaller", 0) = 3 [pid 14803] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14803] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14803] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14803] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14803] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14803] ioctl(4, LOOP_CLR_FD) = 0 [pid 14803] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14803] close(4) = 0 [pid 14803] close(3) = 0 [pid 14803] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14803] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14803] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14803] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14803] open("./bus", O_RDONLY) = 3 [pid 14803] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14803] exit_group(0) = ? [pid 14803] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14803, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14804 ./strace-static-x86_64: Process 14804 attached [pid 14804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14804] setpgid(0, 0) = 0 [pid 14804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14804] write(3, "1000", 4) = 4 [pid 14804] close(3) = 0 [pid 14804] memfd_create("syzkaller", 0) = 3 [pid 14804] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14804] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14804] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14804] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14804] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14804] ioctl(4, LOOP_CLR_FD) = 0 [pid 14804] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14804] close(4) = 0 [pid 14804] close(3) = 0 [pid 14804] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14804] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14804] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14804] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14804] open("./bus", O_RDONLY) = 3 [pid 14804] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14804] exit_group(0) = ? [pid 14804] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14804, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14805 ./strace-static-x86_64: Process 14805 attached [pid 14805] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14805] setpgid(0, 0) = 0 [pid 14805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14805] write(3, "1000", 4) = 4 [pid 14805] close(3) = 0 [pid 14805] memfd_create("syzkaller", 0) = 3 [pid 14805] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14805] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14805] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14805] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14805] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14805] ioctl(4, LOOP_CLR_FD) = 0 [pid 14805] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14805] close(4) = 0 [pid 14805] close(3) = 0 [pid 14805] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14805] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14805] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14805] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14805] open("./bus", O_RDONLY) = 3 [pid 14805] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14805] exit_group(0) = ? [pid 14805] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14805, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14806 ./strace-static-x86_64: Process 14806 attached [pid 14806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14806] setpgid(0, 0) = 0 [pid 14806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14806] write(3, "1000", 4) = 4 [pid 14806] close(3) = 0 [pid 14806] memfd_create("syzkaller", 0) = 3 [pid 14806] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14806] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14806] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14806] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14806] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14806] ioctl(4, LOOP_CLR_FD) = 0 [pid 14806] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14806] close(4) = 0 [pid 14806] close(3) = 0 [pid 14806] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14806] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14806] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14806] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14806] open("./bus", O_RDONLY) = 3 [pid 14806] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14806] exit_group(0) = ? [pid 14806] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14806, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14807 ./strace-static-x86_64: Process 14807 attached [pid 14807] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14807] setpgid(0, 0) = 0 [pid 14807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14807] write(3, "1000", 4) = 4 [pid 14807] close(3) = 0 [pid 14807] memfd_create("syzkaller", 0) = 3 [pid 14807] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14807] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14807] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14807] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14807] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14807] ioctl(4, LOOP_CLR_FD) = 0 [pid 14807] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14807] close(4) = 0 [pid 14807] close(3) = 0 [pid 14807] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14807] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14807] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14807] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14807] open("./bus", O_RDONLY) = 3 [pid 14807] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14807] exit_group(0) = ? [pid 14807] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14807, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14808 ./strace-static-x86_64: Process 14808 attached [pid 14808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14808] setpgid(0, 0) = 0 [pid 14808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14808] write(3, "1000", 4) = 4 [pid 14808] close(3) = 0 [pid 14808] memfd_create("syzkaller", 0) = 3 [pid 14808] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14808] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14808] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14808] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14808] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14808] ioctl(4, LOOP_CLR_FD) = 0 [pid 14808] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14808] close(4) = 0 [pid 14808] close(3) = 0 [pid 14808] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14808] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14808] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14808] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14808] open("./bus", O_RDONLY) = 3 [pid 14808] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14808] exit_group(0) = ? [pid 14808] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14808, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14809 ./strace-static-x86_64: Process 14809 attached [pid 14809] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14809] setpgid(0, 0) = 0 [pid 14809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14809] write(3, "1000", 4) = 4 [pid 14809] close(3) = 0 [pid 14809] memfd_create("syzkaller", 0) = 3 [pid 14809] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14809] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14809] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14809] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14809] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14809] ioctl(4, LOOP_CLR_FD) = 0 [pid 14809] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14809] close(4) = 0 [pid 14809] close(3) = 0 [pid 14809] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14809] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14809] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14809] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14809] open("./bus", O_RDONLY) = 3 [pid 14809] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14809] exit_group(0) = ? [pid 14809] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14809, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14810 attached , child_tidptr=0x5555575235d0) = 14810 [pid 14810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14810] setpgid(0, 0) = 0 [pid 14810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14810] write(3, "1000", 4) = 4 [pid 14810] close(3) = 0 [pid 14810] memfd_create("syzkaller", 0) = 3 [pid 14810] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14810] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14810] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14810] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14810] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14810] ioctl(4, LOOP_CLR_FD) = 0 [pid 14810] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14810] close(4) = 0 [pid 14810] close(3) = 0 [pid 14810] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14810] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14810] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14810] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14810] open("./bus", O_RDONLY) = 3 [pid 14810] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14810] exit_group(0) = ? [pid 14810] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14810, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14811 ./strace-static-x86_64: Process 14811 attached [pid 14811] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14811] setpgid(0, 0) = 0 [pid 14811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14811] write(3, "1000", 4) = 4 [pid 14811] close(3) = 0 [pid 14811] memfd_create("syzkaller", 0) = 3 [pid 14811] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14811] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14811] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14811] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14811] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14811] ioctl(4, LOOP_CLR_FD) = 0 [pid 14811] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14811] close(4) = 0 [pid 14811] close(3) = 0 [pid 14811] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14811] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14811] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14811] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14811] open("./bus", O_RDONLY) = 3 [pid 14811] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14811] exit_group(0) = ? [pid 14811] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14811, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14812 attached , child_tidptr=0x5555575235d0) = 14812 [pid 14812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14812] setpgid(0, 0) = 0 [pid 14812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14812] write(3, "1000", 4) = 4 [pid 14812] close(3) = 0 [pid 14812] memfd_create("syzkaller", 0) = 3 [pid 14812] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14812] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14812] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14812] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14812] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14812] ioctl(4, LOOP_CLR_FD) = 0 [pid 14812] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14812] close(4) = 0 [pid 14812] close(3) = 0 [pid 14812] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14812] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14812] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14812] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14812] open("./bus", O_RDONLY) = 3 [pid 14812] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14812] exit_group(0) = ? [pid 14812] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14812, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14813 ./strace-static-x86_64: Process 14813 attached [pid 14813] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14813] setpgid(0, 0) = 0 [pid 14813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14813] write(3, "1000", 4) = 4 [pid 14813] close(3) = 0 [pid 14813] memfd_create("syzkaller", 0) = 3 [pid 14813] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14813] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14813] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14813] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14813] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14813] ioctl(4, LOOP_CLR_FD) = 0 [pid 14813] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14813] close(4) = 0 [pid 14813] close(3) = 0 [pid 14813] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14813] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14813] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14813] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14813] open("./bus", O_RDONLY) = 3 [pid 14813] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14813] exit_group(0) = ? [pid 14813] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14813, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14814 ./strace-static-x86_64: Process 14814 attached [pid 14814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14814] setpgid(0, 0) = 0 [pid 14814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14814] write(3, "1000", 4) = 4 [pid 14814] close(3) = 0 [pid 14814] memfd_create("syzkaller", 0) = 3 [pid 14814] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14814] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14814] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14814] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14814] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14814] ioctl(4, LOOP_CLR_FD) = 0 [pid 14814] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14814] close(4) = 0 [pid 14814] close(3) = 0 [pid 14814] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14814] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14814] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14814] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14814] open("./bus", O_RDONLY) = 3 [pid 14814] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14814] exit_group(0) = ? [pid 14814] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14814, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14815 attached , child_tidptr=0x5555575235d0) = 14815 [pid 14815] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14815] setpgid(0, 0) = 0 [pid 14815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14815] write(3, "1000", 4) = 4 [pid 14815] close(3) = 0 [pid 14815] memfd_create("syzkaller", 0) = 3 [pid 14815] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14815] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14815] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14815] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14815] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14815] ioctl(4, LOOP_CLR_FD) = 0 [pid 14815] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14815] close(4) = 0 [pid 14815] close(3) = 0 [pid 14815] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14815] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14815] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14815] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14815] open("./bus", O_RDONLY) = 3 [pid 14815] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14815] exit_group(0) = ? [pid 14815] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14815, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14816 ./strace-static-x86_64: Process 14816 attached [pid 14816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14816] setpgid(0, 0) = 0 [pid 14816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14816] write(3, "1000", 4) = 4 [pid 14816] close(3) = 0 [pid 14816] memfd_create("syzkaller", 0) = 3 [pid 14816] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14816] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14816] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14816] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14816] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14816] ioctl(4, LOOP_CLR_FD) = 0 [pid 14816] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14816] close(4) = 0 [pid 14816] close(3) = 0 [pid 14816] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14816] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14816] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14816] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14816] open("./bus", O_RDONLY) = 3 [pid 14816] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14816] exit_group(0) = ? [pid 14816] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14816, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14817 attached , child_tidptr=0x5555575235d0) = 14817 [pid 14817] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14817] setpgid(0, 0) = 0 [pid 14817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14817] write(3, "1000", 4) = 4 [pid 14817] close(3) = 0 [pid 14817] memfd_create("syzkaller", 0) = 3 [pid 14817] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14817] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14817] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14817] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14817] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14817] ioctl(4, LOOP_CLR_FD) = 0 [pid 14817] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14817] close(4) = 0 [pid 14817] close(3) = 0 [pid 14817] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14817] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14817] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14817] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14817] open("./bus", O_RDONLY) = 3 [pid 14817] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14817] exit_group(0) = ? [pid 14817] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14817, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14818 ./strace-static-x86_64: Process 14818 attached [pid 14818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14818] setpgid(0, 0) = 0 [pid 14818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14818] write(3, "1000", 4) = 4 [pid 14818] close(3) = 0 [pid 14818] memfd_create("syzkaller", 0) = 3 [pid 14818] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14818] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14818] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14818] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14818] ioctl(4, LOOP_CLR_FD) = 0 [pid 14818] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14818] close(4) = 0 [pid 14818] close(3) = 0 [pid 14818] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14818] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14818] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14818] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14818] open("./bus", O_RDONLY) = 3 [pid 14818] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14818] exit_group(0) = ? [pid 14818] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14818, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14819 attached , child_tidptr=0x5555575235d0) = 14819 [pid 14819] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14819] setpgid(0, 0) = 0 [pid 14819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14819] write(3, "1000", 4) = 4 [pid 14819] close(3) = 0 [pid 14819] memfd_create("syzkaller", 0) = 3 [pid 14819] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14819] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14819] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14819] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14819] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14819] ioctl(4, LOOP_CLR_FD) = 0 [pid 14819] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14819] close(4) = 0 [pid 14819] close(3) = 0 [pid 14819] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14819] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14819] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14819] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14819] open("./bus", O_RDONLY) = 3 [pid 14819] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14819] exit_group(0) = ? [pid 14819] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14819, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14820 ./strace-static-x86_64: Process 14820 attached [pid 14820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14820] setpgid(0, 0) = 0 [pid 14820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14820] write(3, "1000", 4) = 4 [pid 14820] close(3) = 0 [pid 14820] memfd_create("syzkaller", 0) = 3 [pid 14820] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14820] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14820] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14820] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14820] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14820] ioctl(4, LOOP_CLR_FD) = 0 [pid 14820] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14820] close(4) = 0 [pid 14820] close(3) = 0 [pid 14820] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14820] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14820] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14820] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14820] open("./bus", O_RDONLY) = 3 [pid 14820] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14820] exit_group(0) = ? [pid 14820] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14820, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14821 ./strace-static-x86_64: Process 14821 attached [pid 14821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14821] setpgid(0, 0) = 0 [pid 14821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14821] write(3, "1000", 4) = 4 [pid 14821] close(3) = 0 [pid 14821] memfd_create("syzkaller", 0) = 3 [pid 14821] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14821] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14821] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14821] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14821] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14821] ioctl(4, LOOP_CLR_FD) = 0 [pid 14821] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14821] close(4) = 0 [pid 14821] close(3) = 0 [pid 14821] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14821] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14821] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14821] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14821] open("./bus", O_RDONLY) = 3 [pid 14821] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14821] exit_group(0) = ? [pid 14821] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14821, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14822 attached , child_tidptr=0x5555575235d0) = 14822 [pid 14822] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14822] setpgid(0, 0) = 0 [pid 14822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14822] write(3, "1000", 4) = 4 [pid 14822] close(3) = 0 [pid 14822] memfd_create("syzkaller", 0) = 3 [pid 14822] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14822] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14822] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14822] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14822] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14822] ioctl(4, LOOP_CLR_FD) = 0 [pid 14822] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14822] close(4) = 0 [pid 14822] close(3) = 0 [pid 14822] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14822] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14822] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14822] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14822] open("./bus", O_RDONLY) = 3 [pid 14822] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14822] exit_group(0) = ? [pid 14822] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14822, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14823 ./strace-static-x86_64: Process 14823 attached [pid 14823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14823] setpgid(0, 0) = 0 [pid 14823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14823] write(3, "1000", 4) = 4 [pid 14823] close(3) = 0 [pid 14823] memfd_create("syzkaller", 0) = 3 [pid 14823] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14823] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14823] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14823] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14823] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14823] ioctl(4, LOOP_CLR_FD) = 0 [pid 14823] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14823] close(4) = 0 [pid 14823] close(3) = 0 [pid 14823] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14823] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14823] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14823] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14823] open("./bus", O_RDONLY) = 3 [pid 14823] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14823] exit_group(0) = ? [pid 14823] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14823, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14824 attached , child_tidptr=0x5555575235d0) = 14824 [pid 14824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14824] setpgid(0, 0) = 0 [pid 14824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14824] write(3, "1000", 4) = 4 [pid 14824] close(3) = 0 [pid 14824] memfd_create("syzkaller", 0) = 3 [pid 14824] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14824] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14824] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14824] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14824] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14824] ioctl(4, LOOP_CLR_FD) = 0 [pid 14824] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14824] close(4) = 0 [pid 14824] close(3) = 0 [pid 14824] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14824] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14824] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14824] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14824] open("./bus", O_RDONLY) = 3 [pid 14824] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14824] exit_group(0) = ? [pid 14824] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14824, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14825 ./strace-static-x86_64: Process 14825 attached [pid 14825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14825] setpgid(0, 0) = 0 [pid 14825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14825] write(3, "1000", 4) = 4 [pid 14825] close(3) = 0 [pid 14825] memfd_create("syzkaller", 0) = 3 [pid 14825] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14825] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14825] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14825] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14825] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14825] ioctl(4, LOOP_CLR_FD) = 0 [pid 14825] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14825] close(4) = 0 [pid 14825] close(3) = 0 [pid 14825] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14825] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14825] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14825] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14825] open("./bus", O_RDONLY) = 3 [pid 14825] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14825] exit_group(0) = ? [pid 14825] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14825, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14826 ./strace-static-x86_64: Process 14826 attached [pid 14826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14826] setpgid(0, 0) = 0 [pid 14826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14826] write(3, "1000", 4) = 4 [pid 14826] close(3) = 0 [pid 14826] memfd_create("syzkaller", 0) = 3 [pid 14826] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14826] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14826] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14826] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14826] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14826] ioctl(4, LOOP_CLR_FD) = 0 [pid 14826] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14826] close(4) = 0 [pid 14826] close(3) = 0 [pid 14826] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14826] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14826] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14826] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14826] open("./bus", O_RDONLY) = 3 [pid 14826] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14826] exit_group(0) = ? [pid 14826] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14826, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14827 ./strace-static-x86_64: Process 14827 attached [pid 14827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14827] setpgid(0, 0) = 0 [pid 14827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14827] write(3, "1000", 4) = 4 [pid 14827] close(3) = 0 [pid 14827] memfd_create("syzkaller", 0) = 3 [pid 14827] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14827] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14827] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14827] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14827] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14827] ioctl(4, LOOP_CLR_FD) = 0 [pid 14827] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14827] close(4) = 0 [pid 14827] close(3) = 0 [pid 14827] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14827] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14827] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14827] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14827] open("./bus", O_RDONLY) = 3 [pid 14827] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14827] exit_group(0) = ? [pid 14827] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14827, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14828 ./strace-static-x86_64: Process 14828 attached [pid 14828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14828] setpgid(0, 0) = 0 [pid 14828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14828] write(3, "1000", 4) = 4 [pid 14828] close(3) = 0 [pid 14828] memfd_create("syzkaller", 0) = 3 [pid 14828] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14828] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14828] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14828] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14828] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14828] ioctl(4, LOOP_CLR_FD) = 0 [pid 14828] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14828] close(4) = 0 [pid 14828] close(3) = 0 [pid 14828] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14828] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14828] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14828] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14828] open("./bus", O_RDONLY) = 3 [pid 14828] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14828] exit_group(0) = ? [pid 14828] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14828, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14829 ./strace-static-x86_64: Process 14829 attached [pid 14829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14829] setpgid(0, 0) = 0 [pid 14829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14829] write(3, "1000", 4) = 4 [pid 14829] close(3) = 0 [pid 14829] memfd_create("syzkaller", 0) = 3 [pid 14829] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14829] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14829] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14829] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14829] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14829] ioctl(4, LOOP_CLR_FD) = 0 [pid 14829] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14829] close(4) = 0 [pid 14829] close(3) = 0 [pid 14829] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14829] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14829] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14829] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14829] open("./bus", O_RDONLY) = 3 [pid 14829] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14829] exit_group(0) = ? [pid 14829] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14829, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14830 ./strace-static-x86_64: Process 14830 attached [pid 14830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14830] setpgid(0, 0) = 0 [pid 14830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14830] write(3, "1000", 4) = 4 [pid 14830] close(3) = 0 [pid 14830] memfd_create("syzkaller", 0) = 3 [pid 14830] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14830] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14830] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14830] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14830] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14830] ioctl(4, LOOP_CLR_FD) = 0 [pid 14830] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14830] close(4) = 0 [pid 14830] close(3) = 0 [pid 14830] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14830] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14830] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14830] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14830] open("./bus", O_RDONLY) = 3 [pid 14830] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14830] exit_group(0) = ? [pid 14830] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14830, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14831 attached , child_tidptr=0x5555575235d0) = 14831 [pid 14831] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14831] setpgid(0, 0) = 0 [pid 14831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14831] write(3, "1000", 4) = 4 [pid 14831] close(3) = 0 [pid 14831] memfd_create("syzkaller", 0) = 3 [pid 14831] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14831] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14831] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14831] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14831] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14831] ioctl(4, LOOP_CLR_FD) = 0 [pid 14831] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14831] close(4) = 0 [pid 14831] close(3) = 0 [pid 14831] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14831] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14831] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14831] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14831] open("./bus", O_RDONLY) = 3 [pid 14831] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14831] exit_group(0) = ? [pid 14831] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14831, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14832 attached , child_tidptr=0x5555575235d0) = 14832 [pid 14832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14832] setpgid(0, 0) = 0 [pid 14832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14832] write(3, "1000", 4) = 4 [pid 14832] close(3) = 0 [pid 14832] memfd_create("syzkaller", 0) = 3 [pid 14832] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14832] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14832] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14832] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14832] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14832] ioctl(4, LOOP_CLR_FD) = 0 [pid 14832] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14832] close(4) = 0 [pid 14832] close(3) = 0 [pid 14832] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14832] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14832] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14832] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14832] open("./bus", O_RDONLY) = 3 [pid 14832] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14832] exit_group(0) = ? [pid 14832] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14832, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14833 ./strace-static-x86_64: Process 14833 attached [pid 14833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14833] setpgid(0, 0) = 0 [pid 14833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14833] write(3, "1000", 4) = 4 [pid 14833] close(3) = 0 [pid 14833] memfd_create("syzkaller", 0) = 3 [pid 14833] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14833] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14833] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14833] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14833] ioctl(4, LOOP_CLR_FD) = 0 [pid 14833] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14833] close(4) = 0 [pid 14833] close(3) = 0 [pid 14833] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14833] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14833] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14833] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14833] open("./bus", O_RDONLY) = 3 [pid 14833] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14833] exit_group(0) = ? [pid 14833] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14833, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14834 attached , child_tidptr=0x5555575235d0) = 14834 [pid 14834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14834] setpgid(0, 0) = 0 [pid 14834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14834] write(3, "1000", 4) = 4 [pid 14834] close(3) = 0 [pid 14834] memfd_create("syzkaller", 0) = 3 [pid 14834] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14834] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14834] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14834] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14834] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14834] ioctl(4, LOOP_CLR_FD) = 0 [pid 14834] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14834] close(4) = 0 [pid 14834] close(3) = 0 [pid 14834] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14834] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14834] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14834] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14834] open("./bus", O_RDONLY) = 3 [pid 14834] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14834] exit_group(0) = ? [pid 14834] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14834, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14835 ./strace-static-x86_64: Process 14835 attached [pid 14835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14835] setpgid(0, 0) = 0 [pid 14835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14835] write(3, "1000", 4) = 4 [pid 14835] close(3) = 0 [pid 14835] memfd_create("syzkaller", 0) = 3 [pid 14835] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14835] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14835] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14835] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14835] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14835] ioctl(4, LOOP_CLR_FD) = 0 [pid 14835] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14835] close(4) = 0 [pid 14835] close(3) = 0 [pid 14835] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14835] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14835] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14835] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14835] open("./bus", O_RDONLY) = 3 [pid 14835] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14835] exit_group(0) = ? [pid 14835] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14835, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14836 attached , child_tidptr=0x5555575235d0) = 14836 [pid 14836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14836] setpgid(0, 0) = 0 [pid 14836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14836] write(3, "1000", 4) = 4 [pid 14836] close(3) = 0 [pid 14836] memfd_create("syzkaller", 0) = 3 [pid 14836] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14836] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14836] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14836] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14836] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14836] ioctl(4, LOOP_CLR_FD) = 0 [pid 14836] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14836] close(4) = 0 [pid 14836] close(3) = 0 [pid 14836] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14836] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14836] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14836] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14836] open("./bus", O_RDONLY) = 3 [pid 14836] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14836] exit_group(0) = ? [pid 14836] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14836, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14837 ./strace-static-x86_64: Process 14837 attached [pid 14837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14837] setpgid(0, 0) = 0 [pid 14837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14837] write(3, "1000", 4) = 4 [pid 14837] close(3) = 0 [pid 14837] memfd_create("syzkaller", 0) = 3 [pid 14837] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14837] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14837] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14837] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14837] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14837] ioctl(4, LOOP_CLR_FD) = 0 [pid 14837] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14837] close(4) = 0 [pid 14837] close(3) = 0 [pid 14837] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14837] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14837] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14837] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14837] open("./bus", O_RDONLY) = 3 [pid 14837] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14837] exit_group(0) = ? [pid 14837] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14837, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14838 ./strace-static-x86_64: Process 14838 attached [pid 14838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14838] setpgid(0, 0) = 0 [pid 14838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14838] write(3, "1000", 4) = 4 [pid 14838] close(3) = 0 [pid 14838] memfd_create("syzkaller", 0) = 3 [pid 14838] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14838] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14838] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14838] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14838] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14838] ioctl(4, LOOP_CLR_FD) = 0 [pid 14838] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14838] close(4) = 0 [pid 14838] close(3) = 0 [pid 14838] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14838] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14838] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14838] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14838] open("./bus", O_RDONLY) = 3 [pid 14838] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14838] exit_group(0) = ? [pid 14838] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14838, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14839 ./strace-static-x86_64: Process 14839 attached [pid 14839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14839] setpgid(0, 0) = 0 [pid 14839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14839] write(3, "1000", 4) = 4 [pid 14839] close(3) = 0 [pid 14839] memfd_create("syzkaller", 0) = 3 [pid 14839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14839] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14839] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14839] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14839] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14839] ioctl(4, LOOP_CLR_FD) = 0 [pid 14839] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14839] close(4) = 0 [pid 14839] close(3) = 0 [pid 14839] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14839] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14839] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14839] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14839] open("./bus", O_RDONLY) = 3 [pid 14839] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14839] exit_group(0) = ? [pid 14839] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14839, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14840 attached , child_tidptr=0x5555575235d0) = 14840 [pid 14840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14840] setpgid(0, 0) = 0 [pid 14840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14840] write(3, "1000", 4) = 4 [pid 14840] close(3) = 0 [pid 14840] memfd_create("syzkaller", 0) = 3 [pid 14840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14840] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14840] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14840] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14840] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14840] ioctl(4, LOOP_CLR_FD) = 0 [pid 14840] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14840] close(4) = 0 [pid 14840] close(3) = 0 [pid 14840] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14840] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14840] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14840] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14840] open("./bus", O_RDONLY) = 3 [pid 14840] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14840] exit_group(0) = ? [pid 14840] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14840, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14841 attached , child_tidptr=0x5555575235d0) = 14841 [pid 14841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14841] setpgid(0, 0) = 0 [pid 14841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14841] write(3, "1000", 4) = 4 [pid 14841] close(3) = 0 [pid 14841] memfd_create("syzkaller", 0) = 3 [pid 14841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14841] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14841] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14841] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14841] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14841] ioctl(4, LOOP_CLR_FD) = 0 [pid 14841] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14841] close(4) = 0 [pid 14841] close(3) = 0 [pid 14841] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14841] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14841] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14841] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14841] open("./bus", O_RDONLY) = 3 [pid 14841] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14841] exit_group(0) = ? [pid 14841] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14841, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14842 attached , child_tidptr=0x5555575235d0) = 14842 [pid 14842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14842] setpgid(0, 0) = 0 [pid 14842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14842] write(3, "1000", 4) = 4 [pid 14842] close(3) = 0 [pid 14842] memfd_create("syzkaller", 0) = 3 [pid 14842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14842] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14842] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14842] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14842] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14842] ioctl(4, LOOP_CLR_FD) = 0 [pid 14842] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14842] close(4) = 0 [pid 14842] close(3) = 0 [pid 14842] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14842] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14842] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14842] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14842] open("./bus", O_RDONLY) = 3 [pid 14842] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14842] exit_group(0) = ? [pid 14842] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14842, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14843 ./strace-static-x86_64: Process 14843 attached [pid 14843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14843] setpgid(0, 0) = 0 [pid 14843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14843] write(3, "1000", 4) = 4 [pid 14843] close(3) = 0 [pid 14843] memfd_create("syzkaller", 0) = 3 [pid 14843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14843] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14843] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14843] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14843] ioctl(4, LOOP_CLR_FD) = 0 [pid 14843] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14843] close(4) = 0 [pid 14843] close(3) = 0 [pid 14843] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14843] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14843] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14843] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14843] open("./bus", O_RDONLY) = 3 [pid 14843] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14843] exit_group(0) = ? [pid 14843] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14843, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14844 ./strace-static-x86_64: Process 14844 attached [pid 14844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14844] setpgid(0, 0) = 0 [pid 14844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14844] write(3, "1000", 4) = 4 [pid 14844] close(3) = 0 [pid 14844] memfd_create("syzkaller", 0) = 3 [pid 14844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14844] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14844] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14844] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14844] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14844] ioctl(4, LOOP_CLR_FD) = 0 [pid 14844] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14844] close(4) = 0 [pid 14844] close(3) = 0 [pid 14844] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14844] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14844] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14844] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14844] open("./bus", O_RDONLY) = 3 [pid 14844] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14844] exit_group(0) = ? [pid 14844] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14844, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14845 ./strace-static-x86_64: Process 14845 attached [pid 14845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14845] setpgid(0, 0) = 0 [pid 14845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14845] write(3, "1000", 4) = 4 [pid 14845] close(3) = 0 [pid 14845] memfd_create("syzkaller", 0) = 3 [pid 14845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14845] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14845] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14845] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14845] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14845] ioctl(4, LOOP_CLR_FD) = 0 [pid 14845] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14845] close(4) = 0 [pid 14845] close(3) = 0 [pid 14845] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14845] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14845] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14845] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14845] open("./bus", O_RDONLY) = 3 [pid 14845] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14845] exit_group(0) = ? [pid 14845] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14845, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14846 ./strace-static-x86_64: Process 14846 attached [pid 14846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14846] setpgid(0, 0) = 0 [pid 14846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14846] write(3, "1000", 4) = 4 [pid 14846] close(3) = 0 [pid 14846] memfd_create("syzkaller", 0) = 3 [pid 14846] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14846] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14846] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14846] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14846] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14846] ioctl(4, LOOP_CLR_FD) = 0 [pid 14846] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14846] close(4) = 0 [pid 14846] close(3) = 0 [pid 14846] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14846] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14846] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14846] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14846] open("./bus", O_RDONLY) = 3 [pid 14846] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14846] exit_group(0) = ? [pid 14846] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14846, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14847 ./strace-static-x86_64: Process 14847 attached [pid 14847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14847] setpgid(0, 0) = 0 [pid 14847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14847] write(3, "1000", 4) = 4 [pid 14847] close(3) = 0 [pid 14847] memfd_create("syzkaller", 0) = 3 [pid 14847] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14847] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14847] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14847] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14847] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14847] ioctl(4, LOOP_CLR_FD) = 0 [pid 14847] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14847] close(4) = 0 [pid 14847] close(3) = 0 [pid 14847] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14847] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14847] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14847] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14847] open("./bus", O_RDONLY) = 3 [pid 14847] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14847] exit_group(0) = ? [pid 14847] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14847, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14848 ./strace-static-x86_64: Process 14848 attached [pid 14848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14848] setpgid(0, 0) = 0 [pid 14848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14848] write(3, "1000", 4) = 4 [pid 14848] close(3) = 0 [pid 14848] memfd_create("syzkaller", 0) = 3 [pid 14848] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14848] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14848] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14848] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14848] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14848] ioctl(4, LOOP_CLR_FD) = 0 [pid 14848] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14848] close(4) = 0 [pid 14848] close(3) = 0 [pid 14848] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14848] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14848] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14848] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14848] open("./bus", O_RDONLY) = 3 [pid 14848] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14848] exit_group(0) = ? [pid 14848] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14848, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14849 ./strace-static-x86_64: Process 14849 attached [pid 14849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14849] setpgid(0, 0) = 0 [pid 14849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14849] write(3, "1000", 4) = 4 [pid 14849] close(3) = 0 [pid 14849] memfd_create("syzkaller", 0) = 3 [pid 14849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14849] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14849] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14849] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14849] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14849] ioctl(4, LOOP_CLR_FD) = 0 [pid 14849] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14849] close(4) = 0 [pid 14849] close(3) = 0 [pid 14849] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14849] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14849] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14849] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14849] open("./bus", O_RDONLY) = 3 [pid 14849] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14849] exit_group(0) = ? [pid 14849] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14849, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14850 ./strace-static-x86_64: Process 14850 attached [pid 14850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14850] setpgid(0, 0) = 0 [pid 14850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14850] write(3, "1000", 4) = 4 [pid 14850] close(3) = 0 [pid 14850] memfd_create("syzkaller", 0) = 3 [pid 14850] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14850] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14850] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14850] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14850] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14850] ioctl(4, LOOP_CLR_FD) = 0 [pid 14850] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14850] close(4) = 0 [pid 14850] close(3) = 0 [pid 14850] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14850] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14850] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14850] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14850] open("./bus", O_RDONLY) = 3 [pid 14850] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14850] exit_group(0) = ? [pid 14850] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14850, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14851 ./strace-static-x86_64: Process 14851 attached [pid 14851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14851] setpgid(0, 0) = 0 [pid 14851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14851] write(3, "1000", 4) = 4 [pid 14851] close(3) = 0 [pid 14851] memfd_create("syzkaller", 0) = 3 [pid 14851] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14851] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14851] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14851] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14851] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14851] ioctl(4, LOOP_CLR_FD) = 0 [pid 14851] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14851] close(4) = 0 [pid 14851] close(3) = 0 [pid 14851] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14851] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14851] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14851] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14851] open("./bus", O_RDONLY) = 3 [pid 14851] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14851] exit_group(0) = ? [pid 14851] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14851, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14852 ./strace-static-x86_64: Process 14852 attached [pid 14852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14852] setpgid(0, 0) = 0 [pid 14852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14852] write(3, "1000", 4) = 4 [pid 14852] close(3) = 0 [pid 14852] memfd_create("syzkaller", 0) = 3 [pid 14852] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14852] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14852] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14852] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14852] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14852] ioctl(4, LOOP_CLR_FD) = 0 [pid 14852] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14852] close(4) = 0 [pid 14852] close(3) = 0 [pid 14852] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14852] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14852] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14852] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14852] open("./bus", O_RDONLY) = 3 [pid 14852] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14852] exit_group(0) = ? [pid 14852] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14852, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14853 ./strace-static-x86_64: Process 14853 attached [pid 14853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14853] setpgid(0, 0) = 0 [pid 14853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14853] write(3, "1000", 4) = 4 [pid 14853] close(3) = 0 [pid 14853] memfd_create("syzkaller", 0) = 3 [pid 14853] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14853] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14853] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14853] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14853] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14853] ioctl(4, LOOP_CLR_FD) = 0 [pid 14853] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14853] close(4) = 0 [pid 14853] close(3) = 0 [pid 14853] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14853] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14853] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14853] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14853] open("./bus", O_RDONLY) = 3 [pid 14853] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14853] exit_group(0) = ? [pid 14853] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14853, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14854 ./strace-static-x86_64: Process 14854 attached [pid 14854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14854] setpgid(0, 0) = 0 [pid 14854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14854] write(3, "1000", 4) = 4 [pid 14854] close(3) = 0 [pid 14854] memfd_create("syzkaller", 0) = 3 [pid 14854] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14854] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14854] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14854] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14854] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14854] ioctl(4, LOOP_CLR_FD) = 0 [pid 14854] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14854] close(4) = 0 [pid 14854] close(3) = 0 [pid 14854] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14854] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14854] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14854] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14854] open("./bus", O_RDONLY) = 3 [pid 14854] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14854] exit_group(0) = ? [pid 14854] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14854, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14855 ./strace-static-x86_64: Process 14855 attached [pid 14855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14855] setpgid(0, 0) = 0 [pid 14855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14855] write(3, "1000", 4) = 4 [pid 14855] close(3) = 0 [pid 14855] memfd_create("syzkaller", 0) = 3 [pid 14855] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14855] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14855] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14855] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14855] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14855] ioctl(4, LOOP_CLR_FD) = 0 [pid 14855] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14855] close(4) = 0 [pid 14855] close(3) = 0 [pid 14855] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14855] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14855] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14855] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14855] open("./bus", O_RDONLY) = 3 [pid 14855] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14855] exit_group(0) = ? [pid 14855] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14855, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14856 ./strace-static-x86_64: Process 14856 attached [pid 14856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14856] setpgid(0, 0) = 0 [pid 14856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14856] write(3, "1000", 4) = 4 [pid 14856] close(3) = 0 [pid 14856] memfd_create("syzkaller", 0) = 3 [pid 14856] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14856] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14856] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14856] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14856] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14856] ioctl(4, LOOP_CLR_FD) = 0 [pid 14856] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14856] close(4) = 0 [pid 14856] close(3) = 0 [pid 14856] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14856] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14856] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14856] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14856] open("./bus", O_RDONLY) = 3 [pid 14856] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14856] exit_group(0) = ? [pid 14856] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14856, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14857 ./strace-static-x86_64: Process 14857 attached [pid 14857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14857] setpgid(0, 0) = 0 [pid 14857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14857] write(3, "1000", 4) = 4 [pid 14857] close(3) = 0 [pid 14857] memfd_create("syzkaller", 0) = 3 [pid 14857] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14857] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14857] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14857] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14857] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14857] ioctl(4, LOOP_CLR_FD) = 0 [pid 14857] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14857] close(4) = 0 [pid 14857] close(3) = 0 [pid 14857] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14857] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14857] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14857] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14857] open("./bus", O_RDONLY) = 3 [pid 14857] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14857] exit_group(0) = ? [pid 14857] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14857, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14858 attached , child_tidptr=0x5555575235d0) = 14858 [pid 14858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14858] setpgid(0, 0) = 0 [pid 14858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14858] write(3, "1000", 4) = 4 [pid 14858] close(3) = 0 [pid 14858] memfd_create("syzkaller", 0) = 3 [pid 14858] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14858] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14858] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14858] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14858] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14858] ioctl(4, LOOP_CLR_FD) = 0 [pid 14858] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14858] close(4) = 0 [pid 14858] close(3) = 0 [pid 14858] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14858] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14858] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14858] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14858] open("./bus", O_RDONLY) = 3 [pid 14858] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14858] exit_group(0) = ? [pid 14858] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14858, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14859 ./strace-static-x86_64: Process 14859 attached [pid 14859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14859] setpgid(0, 0) = 0 [pid 14859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14859] write(3, "1000", 4) = 4 [pid 14859] close(3) = 0 [pid 14859] memfd_create("syzkaller", 0) = 3 [pid 14859] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14859] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14859] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14859] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14859] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14859] ioctl(4, LOOP_CLR_FD) = 0 [pid 14859] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14859] close(4) = 0 [pid 14859] close(3) = 0 [pid 14859] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14859] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14859] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14859] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14859] open("./bus", O_RDONLY) = 3 [pid 14859] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14859] exit_group(0) = ? [pid 14859] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14859, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14860 attached , child_tidptr=0x5555575235d0) = 14860 [pid 14860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14860] setpgid(0, 0) = 0 [pid 14860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14860] write(3, "1000", 4) = 4 [pid 14860] close(3) = 0 [pid 14860] memfd_create("syzkaller", 0) = 3 [pid 14860] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14860] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14860] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14860] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14860] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14860] ioctl(4, LOOP_CLR_FD) = 0 [pid 14860] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14860] close(4) = 0 [pid 14860] close(3) = 0 [pid 14860] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14860] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14860] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14860] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14860] open("./bus", O_RDONLY) = 3 [pid 14860] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14860] exit_group(0) = ? [pid 14860] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14860, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14861 attached , child_tidptr=0x5555575235d0) = 14861 [pid 14861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14861] setpgid(0, 0) = 0 [pid 14861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14861] write(3, "1000", 4) = 4 [pid 14861] close(3) = 0 [pid 14861] memfd_create("syzkaller", 0) = 3 [pid 14861] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14861] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14861] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14861] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14861] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14861] ioctl(4, LOOP_CLR_FD) = 0 [pid 14861] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14861] close(4) = 0 [pid 14861] close(3) = 0 [pid 14861] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14861] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14861] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14861] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14861] open("./bus", O_RDONLY) = 3 [pid 14861] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14861] exit_group(0) = ? [pid 14861] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14861, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14862 attached [pid 14862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14862] setpgid(0, 0) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x5555575235d0) = 14862 [pid 14862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14862] write(3, "1000", 4) = 4 [pid 14862] close(3) = 0 [pid 14862] memfd_create("syzkaller", 0) = 3 [pid 14862] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14862] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14862] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14862] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14862] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14862] ioctl(4, LOOP_CLR_FD) = 0 [pid 14862] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14862] close(4) = 0 [pid 14862] close(3) = 0 [pid 14862] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14862] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14862] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14862] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14862] open("./bus", O_RDONLY) = 3 [pid 14862] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14862] exit_group(0) = ? [pid 14862] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14862, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14863 ./strace-static-x86_64: Process 14863 attached [pid 14863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14863] setpgid(0, 0) = 0 [pid 14863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14863] write(3, "1000", 4) = 4 [pid 14863] close(3) = 0 [pid 14863] memfd_create("syzkaller", 0) = 3 [pid 14863] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14863] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14863] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14863] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14863] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14863] ioctl(4, LOOP_CLR_FD) = 0 [pid 14863] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14863] close(4) = 0 [pid 14863] close(3) = 0 [pid 14863] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14863] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14863] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14863] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14863] open("./bus", O_RDONLY) = 3 [pid 14863] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14863] exit_group(0) = ? [pid 14863] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14863, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14864 attached , child_tidptr=0x5555575235d0) = 14864 [pid 14864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14864] setpgid(0, 0) = 0 [pid 14864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14864] write(3, "1000", 4) = 4 [pid 14864] close(3) = 0 [pid 14864] memfd_create("syzkaller", 0) = 3 [pid 14864] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14864] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14864] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14864] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14864] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14864] ioctl(4, LOOP_CLR_FD) = 0 [pid 14864] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14864] close(4) = 0 [pid 14864] close(3) = 0 [pid 14864] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14864] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14864] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14864] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14864] open("./bus", O_RDONLY) = 3 [pid 14864] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14864] exit_group(0) = ? [pid 14864] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14864, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14865 attached , child_tidptr=0x5555575235d0) = 14865 [pid 14865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14865] setpgid(0, 0) = 0 [pid 14865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14865] write(3, "1000", 4) = 4 [pid 14865] close(3) = 0 [pid 14865] memfd_create("syzkaller", 0) = 3 [pid 14865] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14865] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14865] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14865] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14865] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14865] ioctl(4, LOOP_CLR_FD) = 0 [pid 14865] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14865] close(4) = 0 [pid 14865] close(3) = 0 [pid 14865] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14865] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14865] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14865] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14865] open("./bus", O_RDONLY) = 3 [pid 14865] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14865] exit_group(0) = ? [pid 14865] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14865, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14866 ./strace-static-x86_64: Process 14866 attached [pid 14866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14866] setpgid(0, 0) = 0 [pid 14866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14866] write(3, "1000", 4) = 4 [pid 14866] close(3) = 0 [pid 14866] memfd_create("syzkaller", 0) = 3 [pid 14866] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14866] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14866] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14866] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14866] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14866] ioctl(4, LOOP_CLR_FD) = 0 [pid 14866] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14866] close(4) = 0 [pid 14866] close(3) = 0 [pid 14866] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14866] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14866] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14866] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14866] open("./bus", O_RDONLY) = 3 [pid 14866] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14866] exit_group(0) = ? [pid 14866] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14866, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14867 ./strace-static-x86_64: Process 14867 attached [pid 14867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14867] setpgid(0, 0) = 0 [pid 14867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14867] write(3, "1000", 4) = 4 [pid 14867] close(3) = 0 [pid 14867] memfd_create("syzkaller", 0) = 3 [pid 14867] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14867] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14867] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14867] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14867] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14867] ioctl(4, LOOP_CLR_FD) = 0 [pid 14867] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14867] close(4) = 0 [pid 14867] close(3) = 0 [pid 14867] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14867] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14867] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14867] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14867] open("./bus", O_RDONLY) = 3 [pid 14867] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14867] exit_group(0) = ? [pid 14867] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14867, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14868 ./strace-static-x86_64: Process 14868 attached [pid 14868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14868] setpgid(0, 0) = 0 [pid 14868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14868] write(3, "1000", 4) = 4 [pid 14868] close(3) = 0 [pid 14868] memfd_create("syzkaller", 0) = 3 [pid 14868] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14868] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14868] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14868] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14868] ioctl(4, LOOP_CLR_FD) = 0 [pid 14868] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14868] close(4) = 0 [pid 14868] close(3) = 0 [pid 14868] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14868] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14868] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14868] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14868] open("./bus", O_RDONLY) = 3 [pid 14868] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14868] exit_group(0) = ? [pid 14868] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14868, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14869 attached , child_tidptr=0x5555575235d0) = 14869 [pid 14869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14869] setpgid(0, 0) = 0 [pid 14869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14869] write(3, "1000", 4) = 4 [pid 14869] close(3) = 0 [pid 14869] memfd_create("syzkaller", 0) = 3 [pid 14869] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14869] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14869] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14869] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14869] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14869] ioctl(4, LOOP_CLR_FD) = 0 [pid 14869] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14869] close(4) = 0 [pid 14869] close(3) = 0 [pid 14869] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14869] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14869] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14869] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14869] open("./bus", O_RDONLY) = 3 [pid 14869] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14869] exit_group(0) = ? [pid 14869] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14869, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14870 ./strace-static-x86_64: Process 14870 attached [pid 14870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14870] setpgid(0, 0) = 0 [pid 14870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14870] write(3, "1000", 4) = 4 [pid 14870] close(3) = 0 [pid 14870] memfd_create("syzkaller", 0) = 3 [pid 14870] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14870] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14870] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14870] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14870] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14870] ioctl(4, LOOP_CLR_FD) = 0 [pid 14870] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14870] close(4) = 0 [pid 14870] close(3) = 0 [pid 14870] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14870] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14870] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14870] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14870] open("./bus", O_RDONLY) = 3 [pid 14870] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14870] exit_group(0) = ? [pid 14870] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14870, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14871 attached , child_tidptr=0x5555575235d0) = 14871 [pid 14871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14871] setpgid(0, 0) = 0 [pid 14871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14871] write(3, "1000", 4) = 4 [pid 14871] close(3) = 0 [pid 14871] memfd_create("syzkaller", 0) = 3 [pid 14871] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14871] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14871] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14871] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14871] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14871] ioctl(4, LOOP_CLR_FD) = 0 [pid 14871] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14871] close(4) = 0 [pid 14871] close(3) = 0 [pid 14871] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14871] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14871] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14871] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14871] open("./bus", O_RDONLY) = 3 [pid 14871] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14871] exit_group(0) = ? [pid 14871] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14871, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14872 ./strace-static-x86_64: Process 14872 attached [pid 14872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14872] setpgid(0, 0) = 0 [pid 14872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14872] write(3, "1000", 4) = 4 [pid 14872] close(3) = 0 [pid 14872] memfd_create("syzkaller", 0) = 3 [pid 14872] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14872] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14872] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14872] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14872] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14872] ioctl(4, LOOP_CLR_FD) = 0 [pid 14872] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14872] close(4) = 0 [pid 14872] close(3) = 0 [pid 14872] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14872] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14872] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14872] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14872] open("./bus", O_RDONLY) = 3 [pid 14872] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14872] exit_group(0) = ? [pid 14872] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14872, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14873 ./strace-static-x86_64: Process 14873 attached [pid 14873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14873] setpgid(0, 0) = 0 [pid 14873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14873] write(3, "1000", 4) = 4 [pid 14873] close(3) = 0 [pid 14873] memfd_create("syzkaller", 0) = 3 [pid 14873] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14873] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14873] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14873] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14873] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14873] ioctl(4, LOOP_CLR_FD) = 0 [pid 14873] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14873] close(4) = 0 [pid 14873] close(3) = 0 [pid 14873] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14873] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14873] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14873] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14873] open("./bus", O_RDONLY) = 3 [pid 14873] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14873] exit_group(0) = ? [pid 14873] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14873, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14874 ./strace-static-x86_64: Process 14874 attached [pid 14874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14874] setpgid(0, 0) = 0 [pid 14874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14874] write(3, "1000", 4) = 4 [pid 14874] close(3) = 0 [pid 14874] memfd_create("syzkaller", 0) = 3 [pid 14874] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14874] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14874] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14874] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14874] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14874] ioctl(4, LOOP_CLR_FD) = 0 [pid 14874] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14874] close(4) = 0 [pid 14874] close(3) = 0 [pid 14874] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14874] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14874] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14874] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14874] open("./bus", O_RDONLY) = 3 [pid 14874] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14874] exit_group(0) = ? [pid 14874] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14874, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14875 ./strace-static-x86_64: Process 14875 attached [pid 14875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14875] setpgid(0, 0) = 0 [pid 14875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14875] write(3, "1000", 4) = 4 [pid 14875] close(3) = 0 [pid 14875] memfd_create("syzkaller", 0) = 3 [pid 14875] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14875] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14875] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14875] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14875] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14875] ioctl(4, LOOP_CLR_FD) = 0 [pid 14875] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14875] close(4) = 0 [pid 14875] close(3) = 0 [pid 14875] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14875] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14875] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14875] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14875] open("./bus", O_RDONLY) = 3 [pid 14875] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14875] exit_group(0) = ? [pid 14875] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14875, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14876 ./strace-static-x86_64: Process 14876 attached [pid 14876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14876] setpgid(0, 0) = 0 [pid 14876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14876] write(3, "1000", 4) = 4 [pid 14876] close(3) = 0 [pid 14876] memfd_create("syzkaller", 0) = 3 [pid 14876] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14876] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14876] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14876] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14876] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14876] ioctl(4, LOOP_CLR_FD) = 0 [pid 14876] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14876] close(4) = 0 [pid 14876] close(3) = 0 [pid 14876] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14876] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14876] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14876] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14876] open("./bus", O_RDONLY) = 3 [pid 14876] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14876] exit_group(0) = ? [pid 14876] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14876, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14877 ./strace-static-x86_64: Process 14877 attached [pid 14877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14877] setpgid(0, 0) = 0 [pid 14877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14877] write(3, "1000", 4) = 4 [pid 14877] close(3) = 0 [pid 14877] memfd_create("syzkaller", 0) = 3 [pid 14877] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14877] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14877] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14877] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14877] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14877] ioctl(4, LOOP_CLR_FD) = 0 [pid 14877] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14877] close(4) = 0 [pid 14877] close(3) = 0 [pid 14877] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14877] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14877] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14877] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14877] open("./bus", O_RDONLY) = 3 [pid 14877] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14877] exit_group(0) = ? [pid 14877] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14877, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14878 ./strace-static-x86_64: Process 14878 attached [pid 14878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14878] setpgid(0, 0) = 0 [pid 14878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14878] write(3, "1000", 4) = 4 [pid 14878] close(3) = 0 [pid 14878] memfd_create("syzkaller", 0) = 3 [pid 14878] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14878] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14878] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14878] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14878] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14878] ioctl(4, LOOP_CLR_FD) = 0 [pid 14878] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14878] close(4) = 0 [pid 14878] close(3) = 0 [pid 14878] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14878] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14878] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14878] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14878] open("./bus", O_RDONLY) = 3 [pid 14878] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14878] exit_group(0) = ? [pid 14878] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14878, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14879 ./strace-static-x86_64: Process 14879 attached [pid 14879] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14879] setpgid(0, 0) = 0 [pid 14879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14879] write(3, "1000", 4) = 4 [pid 14879] close(3) = 0 [pid 14879] memfd_create("syzkaller", 0) = 3 [pid 14879] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14879] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14879] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14879] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14879] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14879] ioctl(4, LOOP_CLR_FD) = 0 [pid 14879] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14879] close(4) = 0 [pid 14879] close(3) = 0 [pid 14879] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14879] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14879] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14879] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14879] open("./bus", O_RDONLY) = 3 [pid 14879] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14879] exit_group(0) = ? [pid 14879] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14879, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14880 attached [pid 14880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14880] setpgid(0, 0) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x5555575235d0) = 14880 [pid 14880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14880] write(3, "1000", 4) = 4 [pid 14880] close(3) = 0 [pid 14880] memfd_create("syzkaller", 0) = 3 [pid 14880] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14880] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14880] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14880] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14880] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14880] ioctl(4, LOOP_CLR_FD) = 0 [pid 14880] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14880] close(4) = 0 [pid 14880] close(3) = 0 [pid 14880] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14880] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14880] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14880] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14880] open("./bus", O_RDONLY) = 3 [pid 14880] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14880] exit_group(0) = ? [pid 14880] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14880, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14881 attached , child_tidptr=0x5555575235d0) = 14881 [pid 14881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14881] setpgid(0, 0) = 0 [pid 14881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14881] write(3, "1000", 4) = 4 [pid 14881] close(3) = 0 [pid 14881] memfd_create("syzkaller", 0) = 3 [pid 14881] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14881] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14881] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14881] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14881] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14881] ioctl(4, LOOP_CLR_FD) = 0 [pid 14881] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14881] close(4) = 0 [pid 14881] close(3) = 0 [pid 14881] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14881] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14881] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14881] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14881] open("./bus", O_RDONLY) = 3 [pid 14881] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14881] exit_group(0) = ? [pid 14881] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14881, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14882 ./strace-static-x86_64: Process 14882 attached [pid 14882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14882] setpgid(0, 0) = 0 [pid 14882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14882] write(3, "1000", 4) = 4 [pid 14882] close(3) = 0 [pid 14882] memfd_create("syzkaller", 0) = 3 [pid 14882] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14882] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14882] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14882] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14882] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14882] ioctl(4, LOOP_CLR_FD) = 0 [pid 14882] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14882] close(4) = 0 [pid 14882] close(3) = 0 [pid 14882] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14882] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14882] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14882] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14882] open("./bus", O_RDONLY) = 3 [pid 14882] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14882] exit_group(0) = ? [pid 14882] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14882, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14883 ./strace-static-x86_64: Process 14883 attached [pid 14883] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14883] setpgid(0, 0) = 0 [pid 14883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14883] write(3, "1000", 4) = 4 [pid 14883] close(3) = 0 [pid 14883] memfd_create("syzkaller", 0) = 3 [pid 14883] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14883] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14883] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14883] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14883] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14883] ioctl(4, LOOP_CLR_FD) = 0 [pid 14883] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14883] close(4) = 0 [pid 14883] close(3) = 0 [pid 14883] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14883] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14883] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14883] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14883] open("./bus", O_RDONLY) = 3 [pid 14883] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14883] exit_group(0) = ? [pid 14883] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14883, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14884 ./strace-static-x86_64: Process 14884 attached [pid 14884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14884] setpgid(0, 0) = 0 [pid 14884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14884] write(3, "1000", 4) = 4 [pid 14884] close(3) = 0 [pid 14884] memfd_create("syzkaller", 0) = 3 [pid 14884] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14884] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14884] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14884] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14884] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14884] ioctl(4, LOOP_CLR_FD) = 0 [pid 14884] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14884] close(4) = 0 [pid 14884] close(3) = 0 [pid 14884] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14884] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14884] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14884] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14884] open("./bus", O_RDONLY) = 3 [pid 14884] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14884] exit_group(0) = ? [pid 14884] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14884, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14885 ./strace-static-x86_64: Process 14885 attached [pid 14885] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14885] setpgid(0, 0) = 0 [pid 14885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14885] write(3, "1000", 4) = 4 [pid 14885] close(3) = 0 [pid 14885] memfd_create("syzkaller", 0) = 3 [pid 14885] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14885] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14885] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14885] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14885] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14885] ioctl(4, LOOP_CLR_FD) = 0 [pid 14885] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14885] close(4) = 0 [pid 14885] close(3) = 0 [pid 14885] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14885] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14885] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14885] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14885] open("./bus", O_RDONLY) = 3 [pid 14885] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14885] exit_group(0) = ? [pid 14885] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14885, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14886 ./strace-static-x86_64: Process 14886 attached [pid 14886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14886] setpgid(0, 0) = 0 [pid 14886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14886] write(3, "1000", 4) = 4 [pid 14886] close(3) = 0 [pid 14886] memfd_create("syzkaller", 0) = 3 [pid 14886] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14886] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14886] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14886] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14886] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14886] ioctl(4, LOOP_CLR_FD) = 0 [pid 14886] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14886] close(4) = 0 [pid 14886] close(3) = 0 [pid 14886] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14886] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14886] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14886] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14886] open("./bus", O_RDONLY) = 3 [pid 14886] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14886] exit_group(0) = ? [pid 14886] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14886, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14887 attached , child_tidptr=0x5555575235d0) = 14887 [pid 14887] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14887] setpgid(0, 0) = 0 [pid 14887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14887] write(3, "1000", 4) = 4 [pid 14887] close(3) = 0 [pid 14887] memfd_create("syzkaller", 0) = 3 [pid 14887] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14887] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14887] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14887] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14887] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14887] ioctl(4, LOOP_CLR_FD) = 0 [pid 14887] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14887] close(4) = 0 [pid 14887] close(3) = 0 [pid 14887] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14887] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14887] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14887] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14887] open("./bus", O_RDONLY) = 3 [pid 14887] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14887] exit_group(0) = ? [pid 14887] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14887, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14888 attached , child_tidptr=0x5555575235d0) = 14888 [pid 14888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14888] setpgid(0, 0) = 0 [pid 14888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14888] write(3, "1000", 4) = 4 [pid 14888] close(3) = 0 [pid 14888] memfd_create("syzkaller", 0) = 3 [pid 14888] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14888] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14888] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14888] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14888] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14888] ioctl(4, LOOP_CLR_FD) = 0 [pid 14888] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14888] close(4) = 0 [pid 14888] close(3) = 0 [pid 14888] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14888] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14888] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14888] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14888] open("./bus", O_RDONLY) = 3 [pid 14888] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14888] exit_group(0) = ? [pid 14888] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14888, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14889 ./strace-static-x86_64: Process 14889 attached [pid 14889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14889] setpgid(0, 0) = 0 [pid 14889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14889] write(3, "1000", 4) = 4 [pid 14889] close(3) = 0 [pid 14889] memfd_create("syzkaller", 0) = 3 [pid 14889] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14889] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14889] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14889] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14889] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14889] ioctl(4, LOOP_CLR_FD) = 0 [pid 14889] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14889] close(4) = 0 [pid 14889] close(3) = 0 [pid 14889] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14889] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14889] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14889] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14889] open("./bus", O_RDONLY) = 3 [pid 14889] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14889] exit_group(0) = ? [pid 14889] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14889, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14890 ./strace-static-x86_64: Process 14890 attached [pid 14890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14890] setpgid(0, 0) = 0 [pid 14890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14890] write(3, "1000", 4) = 4 [pid 14890] close(3) = 0 [pid 14890] memfd_create("syzkaller", 0) = 3 [pid 14890] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14890] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14890] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14890] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14890] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14890] ioctl(4, LOOP_CLR_FD) = 0 [pid 14890] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14890] close(4) = 0 [pid 14890] close(3) = 0 [pid 14890] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14890] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14890] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14890] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14890] open("./bus", O_RDONLY) = 3 [pid 14890] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14890] exit_group(0) = ? [pid 14890] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14890, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14891 ./strace-static-x86_64: Process 14891 attached [pid 14891] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14891] setpgid(0, 0) = 0 [pid 14891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14891] write(3, "1000", 4) = 4 [pid 14891] close(3) = 0 [pid 14891] memfd_create("syzkaller", 0) = 3 [pid 14891] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14891] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14891] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14891] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14891] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14891] ioctl(4, LOOP_CLR_FD) = 0 [pid 14891] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14891] close(4) = 0 [pid 14891] close(3) = 0 [pid 14891] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14891] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14891] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14891] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14891] open("./bus", O_RDONLY) = 3 [pid 14891] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14891] exit_group(0) = ? [pid 14891] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14891, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14892 ./strace-static-x86_64: Process 14892 attached [pid 14892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14892] setpgid(0, 0) = 0 [pid 14892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14892] write(3, "1000", 4) = 4 [pid 14892] close(3) = 0 [pid 14892] memfd_create("syzkaller", 0) = 3 [pid 14892] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14892] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14892] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14892] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14892] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14892] ioctl(4, LOOP_CLR_FD) = 0 [pid 14892] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14892] close(4) = 0 [pid 14892] close(3) = 0 [pid 14892] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14892] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14892] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14892] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14892] open("./bus", O_RDONLY) = 3 [pid 14892] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14892] exit_group(0) = ? [pid 14892] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14892, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14893 ./strace-static-x86_64: Process 14893 attached [pid 14893] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14893] setpgid(0, 0) = 0 [pid 14893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14893] write(3, "1000", 4) = 4 [pid 14893] close(3) = 0 [pid 14893] memfd_create("syzkaller", 0) = 3 [pid 14893] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14893] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14893] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14893] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14893] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14893] ioctl(4, LOOP_CLR_FD) = 0 [pid 14893] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14893] close(4) = 0 [pid 14893] close(3) = 0 [pid 14893] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14893] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14893] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14893] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14893] open("./bus", O_RDONLY) = 3 [pid 14893] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14893] exit_group(0) = ? [pid 14893] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14893, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14894 ./strace-static-x86_64: Process 14894 attached [pid 14894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14894] setpgid(0, 0) = 0 [pid 14894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14894] write(3, "1000", 4) = 4 [pid 14894] close(3) = 0 [pid 14894] memfd_create("syzkaller", 0) = 3 [pid 14894] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14894] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14894] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14894] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14894] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14894] ioctl(4, LOOP_CLR_FD) = 0 [pid 14894] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14894] close(4) = 0 [pid 14894] close(3) = 0 [pid 14894] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14894] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14894] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14894] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14894] open("./bus", O_RDONLY) = 3 [pid 14894] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14894] exit_group(0) = ? [pid 14894] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14894, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14895 ./strace-static-x86_64: Process 14895 attached [pid 14895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14895] setpgid(0, 0) = 0 [pid 14895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14895] write(3, "1000", 4) = 4 [pid 14895] close(3) = 0 [pid 14895] memfd_create("syzkaller", 0) = 3 [pid 14895] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14895] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14895] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14895] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14895] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14895] ioctl(4, LOOP_CLR_FD) = 0 [pid 14895] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14895] close(4) = 0 [pid 14895] close(3) = 0 [pid 14895] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14895] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14895] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14895] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14895] open("./bus", O_RDONLY) = 3 [pid 14895] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14895] exit_group(0) = ? [pid 14895] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14895, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14896 ./strace-static-x86_64: Process 14896 attached [pid 14896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14896] setpgid(0, 0) = 0 [pid 14896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14896] write(3, "1000", 4) = 4 [pid 14896] close(3) = 0 [pid 14896] memfd_create("syzkaller", 0) = 3 [pid 14896] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14896] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14896] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14896] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14896] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14896] ioctl(4, LOOP_CLR_FD) = 0 [pid 14896] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14896] close(4) = 0 [pid 14896] close(3) = 0 [pid 14896] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14896] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14896] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14896] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14896] open("./bus", O_RDONLY) = 3 [pid 14896] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14896] exit_group(0) = ? [pid 14896] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14896, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14897 attached , child_tidptr=0x5555575235d0) = 14897 [pid 14897] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14897] setpgid(0, 0) = 0 [pid 14897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14897] write(3, "1000", 4) = 4 [pid 14897] close(3) = 0 [pid 14897] memfd_create("syzkaller", 0) = 3 [pid 14897] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14897] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14897] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14897] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14897] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14897] ioctl(4, LOOP_CLR_FD) = 0 [pid 14897] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14897] close(4) = 0 [pid 14897] close(3) = 0 [pid 14897] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14897] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14897] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14897] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14897] open("./bus", O_RDONLY) = 3 [pid 14897] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14897] exit_group(0) = ? [pid 14897] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14897, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14898 attached , child_tidptr=0x5555575235d0) = 14898 [pid 14898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14898] setpgid(0, 0) = 0 [pid 14898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14898] write(3, "1000", 4) = 4 [pid 14898] close(3) = 0 [pid 14898] memfd_create("syzkaller", 0) = 3 [pid 14898] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14898] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14898] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14898] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14898] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14898] ioctl(4, LOOP_CLR_FD) = 0 [pid 14898] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14898] close(4) = 0 [pid 14898] close(3) = 0 [pid 14898] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14898] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14898] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14898] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14898] open("./bus", O_RDONLY) = 3 [pid 14898] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14898] exit_group(0) = ? [pid 14898] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14898, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14899 ./strace-static-x86_64: Process 14899 attached [pid 14899] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14899] setpgid(0, 0) = 0 [pid 14899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14899] write(3, "1000", 4) = 4 [pid 14899] close(3) = 0 [pid 14899] memfd_create("syzkaller", 0) = 3 [pid 14899] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14899] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14899] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14899] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14899] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14899] ioctl(4, LOOP_CLR_FD) = 0 [pid 14899] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14899] close(4) = 0 [pid 14899] close(3) = 0 [pid 14899] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14899] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14899] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14899] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14899] open("./bus", O_RDONLY) = 3 [pid 14899] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14899] exit_group(0) = ? [pid 14899] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14899, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14900 attached , child_tidptr=0x5555575235d0) = 14900 [pid 14900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14900] setpgid(0, 0) = 0 [pid 14900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14900] write(3, "1000", 4) = 4 [pid 14900] close(3) = 0 [pid 14900] memfd_create("syzkaller", 0) = 3 [pid 14900] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14900] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14900] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14900] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14900] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14900] ioctl(4, LOOP_CLR_FD) = 0 [pid 14900] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14900] close(4) = 0 [pid 14900] close(3) = 0 [pid 14900] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14900] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14900] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14900] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14900] open("./bus", O_RDONLY) = 3 [pid 14900] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14900] exit_group(0) = ? [pid 14900] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14900, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14901 attached , child_tidptr=0x5555575235d0) = 14901 [pid 14901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14901] setpgid(0, 0) = 0 [pid 14901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14901] write(3, "1000", 4) = 4 [pid 14901] close(3) = 0 [pid 14901] memfd_create("syzkaller", 0) = 3 [pid 14901] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14901] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14901] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14901] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14901] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14901] ioctl(4, LOOP_CLR_FD) = 0 [pid 14901] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14901] close(4) = 0 [pid 14901] close(3) = 0 [pid 14901] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14901] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14901] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14901] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14901] open("./bus", O_RDONLY) = 3 [pid 14901] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14901] exit_group(0) = ? [pid 14901] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14901, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14902 ./strace-static-x86_64: Process 14902 attached [pid 14902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14902] setpgid(0, 0) = 0 [pid 14902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14902] write(3, "1000", 4) = 4 [pid 14902] close(3) = 0 [pid 14902] memfd_create("syzkaller", 0) = 3 [pid 14902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14902] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14902] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14902] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14902] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14902] ioctl(4, LOOP_CLR_FD) = 0 [pid 14902] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14902] close(4) = 0 [pid 14902] close(3) = 0 [pid 14902] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14902] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14902] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14902] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14902] open("./bus", O_RDONLY) = 3 [pid 14902] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14902] exit_group(0) = ? [pid 14902] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14902, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14903 ./strace-static-x86_64: Process 14903 attached [pid 14903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14903] setpgid(0, 0) = 0 [pid 14903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14903] write(3, "1000", 4) = 4 [pid 14903] close(3) = 0 [pid 14903] memfd_create("syzkaller", 0) = 3 [pid 14903] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14903] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14903] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14903] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14903] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14903] ioctl(4, LOOP_CLR_FD) = 0 [pid 14903] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14903] close(4) = 0 [pid 14903] close(3) = 0 [pid 14903] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14903] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14903] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14903] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14903] open("./bus", O_RDONLY) = 3 [pid 14903] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14903] exit_group(0) = ? [pid 14903] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14903, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14904 ./strace-static-x86_64: Process 14904 attached [pid 14904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14904] setpgid(0, 0) = 0 [pid 14904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14904] write(3, "1000", 4) = 4 [pid 14904] close(3) = 0 [pid 14904] memfd_create("syzkaller", 0) = 3 [pid 14904] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14904] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14904] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14904] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14904] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14904] ioctl(4, LOOP_CLR_FD) = 0 [pid 14904] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14904] close(4) = 0 [pid 14904] close(3) = 0 [pid 14904] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14904] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14904] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14904] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14904] open("./bus", O_RDONLY) = 3 [pid 14904] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14904] exit_group(0) = ? [pid 14904] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14904, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14905 attached , child_tidptr=0x5555575235d0) = 14905 [pid 14905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14905] setpgid(0, 0) = 0 [pid 14905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14905] write(3, "1000", 4) = 4 [pid 14905] close(3) = 0 [pid 14905] memfd_create("syzkaller", 0) = 3 [pid 14905] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14905] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14905] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14905] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14905] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14905] ioctl(4, LOOP_CLR_FD) = 0 [pid 14905] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14905] close(4) = 0 [pid 14905] close(3) = 0 [pid 14905] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14905] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14905] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14905] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14905] open("./bus", O_RDONLY) = 3 [pid 14905] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14905] exit_group(0) = ? [pid 14905] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14905, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14906 attached , child_tidptr=0x5555575235d0) = 14906 [pid 14906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14906] setpgid(0, 0) = 0 [pid 14906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14906] write(3, "1000", 4) = 4 [pid 14906] close(3) = 0 [pid 14906] memfd_create("syzkaller", 0) = 3 [pid 14906] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14906] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14906] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14906] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14906] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14906] ioctl(4, LOOP_CLR_FD) = 0 [pid 14906] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14906] close(4) = 0 [pid 14906] close(3) = 0 [pid 14906] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14906] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14906] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14906] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14906] open("./bus", O_RDONLY) = 3 [pid 14906] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14906] exit_group(0) = ? [pid 14906] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14906, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14907 ./strace-static-x86_64: Process 14907 attached [pid 14907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14907] setpgid(0, 0) = 0 [pid 14907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14907] write(3, "1000", 4) = 4 [pid 14907] close(3) = 0 [pid 14907] memfd_create("syzkaller", 0) = 3 [pid 14907] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14907] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14907] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14907] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14907] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14907] ioctl(4, LOOP_CLR_FD) = 0 [pid 14907] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14907] close(4) = 0 [pid 14907] close(3) = 0 [pid 14907] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14907] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14907] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14907] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14907] open("./bus", O_RDONLY) = 3 [pid 14907] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14907] exit_group(0) = ? [pid 14907] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14907, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14908 ./strace-static-x86_64: Process 14908 attached [pid 14908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14908] setpgid(0, 0) = 0 [pid 14908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14908] write(3, "1000", 4) = 4 [pid 14908] close(3) = 0 [pid 14908] memfd_create("syzkaller", 0) = 3 [pid 14908] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14908] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14908] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14908] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14908] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14908] ioctl(4, LOOP_CLR_FD) = 0 [pid 14908] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14908] close(4) = 0 [pid 14908] close(3) = 0 [pid 14908] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14908] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14908] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14908] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14908] open("./bus", O_RDONLY) = 3 [pid 14908] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14908] exit_group(0) = ? [pid 14908] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14908, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14909 attached , child_tidptr=0x5555575235d0) = 14909 [pid 14909] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14909] setpgid(0, 0) = 0 [pid 14909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14909] write(3, "1000", 4) = 4 [pid 14909] close(3) = 0 [pid 14909] memfd_create("syzkaller", 0) = 3 [pid 14909] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14909] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14909] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14909] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14909] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14909] ioctl(4, LOOP_CLR_FD) = 0 [pid 14909] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14909] close(4) = 0 [pid 14909] close(3) = 0 [pid 14909] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14909] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14909] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14909] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14909] open("./bus", O_RDONLY) = 3 [pid 14909] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14909] exit_group(0) = ? [pid 14909] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14909, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14910 ./strace-static-x86_64: Process 14910 attached [pid 14910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14910] setpgid(0, 0) = 0 [pid 14910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14910] write(3, "1000", 4) = 4 [pid 14910] close(3) = 0 [pid 14910] memfd_create("syzkaller", 0) = 3 [pid 14910] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14910] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14910] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14910] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14910] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14910] ioctl(4, LOOP_CLR_FD) = 0 [pid 14910] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14910] close(4) = 0 [pid 14910] close(3) = 0 [pid 14910] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14910] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14910] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14910] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14910] open("./bus", O_RDONLY) = 3 [pid 14910] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14910] exit_group(0) = ? [pid 14910] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14910, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14911 ./strace-static-x86_64: Process 14911 attached [pid 14911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14911] setpgid(0, 0) = 0 [pid 14911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14911] write(3, "1000", 4) = 4 [pid 14911] close(3) = 0 [pid 14911] memfd_create("syzkaller", 0) = 3 [pid 14911] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14911] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14911] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14911] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14911] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14911] ioctl(4, LOOP_CLR_FD) = 0 [pid 14911] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14911] close(4) = 0 [pid 14911] close(3) = 0 [pid 14911] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14911] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14911] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14911] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14911] open("./bus", O_RDONLY) = 3 [pid 14911] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14911] exit_group(0) = ? [pid 14911] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14911, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14912 ./strace-static-x86_64: Process 14912 attached [pid 14912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14912] setpgid(0, 0) = 0 [pid 14912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14912] write(3, "1000", 4) = 4 [pid 14912] close(3) = 0 [pid 14912] memfd_create("syzkaller", 0) = 3 [pid 14912] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14912] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14912] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14912] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14912] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14912] ioctl(4, LOOP_CLR_FD) = 0 [pid 14912] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14912] close(4) = 0 [pid 14912] close(3) = 0 [pid 14912] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14912] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14912] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14912] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14912] open("./bus", O_RDONLY) = 3 [pid 14912] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14912] exit_group(0) = ? [pid 14912] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14912, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14913 ./strace-static-x86_64: Process 14913 attached [pid 14913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14913] setpgid(0, 0) = 0 [pid 14913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14913] write(3, "1000", 4) = 4 [pid 14913] close(3) = 0 [pid 14913] memfd_create("syzkaller", 0) = 3 [pid 14913] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14913] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14913] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14913] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14913] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14913] ioctl(4, LOOP_CLR_FD) = 0 [pid 14913] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14913] close(4) = 0 [pid 14913] close(3) = 0 [pid 14913] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14913] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14913] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14913] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14913] open("./bus", O_RDONLY) = 3 [pid 14913] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14913] exit_group(0) = ? [pid 14913] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14913, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14914 ./strace-static-x86_64: Process 14914 attached [pid 14914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14914] setpgid(0, 0) = 0 [pid 14914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14914] write(3, "1000", 4) = 4 [pid 14914] close(3) = 0 [pid 14914] memfd_create("syzkaller", 0) = 3 [pid 14914] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14914] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14914] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14914] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14914] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14914] ioctl(4, LOOP_CLR_FD) = 0 [pid 14914] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14914] close(4) = 0 [pid 14914] close(3) = 0 [pid 14914] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14914] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14914] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14914] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14914] open("./bus", O_RDONLY) = 3 [pid 14914] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14914] exit_group(0) = ? [pid 14914] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14914, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14915 attached , child_tidptr=0x5555575235d0) = 14915 [pid 14915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14915] setpgid(0, 0) = 0 [pid 14915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14915] write(3, "1000", 4) = 4 [pid 14915] close(3) = 0 [pid 14915] memfd_create("syzkaller", 0) = 3 [pid 14915] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14915] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14915] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14915] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14915] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14915] ioctl(4, LOOP_CLR_FD) = 0 [pid 14915] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14915] close(4) = 0 [pid 14915] close(3) = 0 [pid 14915] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14915] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14915] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14915] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14915] open("./bus", O_RDONLY) = 3 [pid 14915] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14915] exit_group(0) = ? [pid 14915] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14915, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14916 ./strace-static-x86_64: Process 14916 attached [pid 14916] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14916] setpgid(0, 0) = 0 [pid 14916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14916] write(3, "1000", 4) = 4 [pid 14916] close(3) = 0 [pid 14916] memfd_create("syzkaller", 0) = 3 [pid 14916] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14916] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14916] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14916] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14916] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14916] ioctl(4, LOOP_CLR_FD) = 0 [pid 14916] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14916] close(4) = 0 [pid 14916] close(3) = 0 [pid 14916] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14916] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14916] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14916] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14916] open("./bus", O_RDONLY) = 3 [pid 14916] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14916] exit_group(0) = ? [pid 14916] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14916, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14917 attached , child_tidptr=0x5555575235d0) = 14917 [pid 14917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14917] setpgid(0, 0) = 0 [pid 14917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14917] write(3, "1000", 4) = 4 [pid 14917] close(3) = 0 [pid 14917] memfd_create("syzkaller", 0) = 3 [pid 14917] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14917] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14917] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14917] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14917] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14917] ioctl(4, LOOP_CLR_FD) = 0 [pid 14917] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14917] close(4) = 0 [pid 14917] close(3) = 0 [pid 14917] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14917] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14917] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14917] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14917] open("./bus", O_RDONLY) = 3 [pid 14917] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14917] exit_group(0) = ? [pid 14917] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14917, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14918 ./strace-static-x86_64: Process 14918 attached [pid 14918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14918] setpgid(0, 0) = 0 [pid 14918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14918] write(3, "1000", 4) = 4 [pid 14918] close(3) = 0 [pid 14918] memfd_create("syzkaller", 0) = 3 [pid 14918] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14918] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14918] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14918] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14918] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14918] ioctl(4, LOOP_CLR_FD) = 0 [pid 14918] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14918] close(4) = 0 [pid 14918] close(3) = 0 [pid 14918] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14918] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14918] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14918] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14918] open("./bus", O_RDONLY) = 3 [pid 14918] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14918] exit_group(0) = ? [pid 14918] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14918, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14919 ./strace-static-x86_64: Process 14919 attached [pid 14919] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14919] setpgid(0, 0) = 0 [pid 14919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14919] write(3, "1000", 4) = 4 [pid 14919] close(3) = 0 [pid 14919] memfd_create("syzkaller", 0) = 3 [pid 14919] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14919] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14919] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14919] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14919] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14919] ioctl(4, LOOP_CLR_FD) = 0 [pid 14919] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14919] close(4) = 0 [pid 14919] close(3) = 0 [pid 14919] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14919] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14919] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14919] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14919] open("./bus", O_RDONLY) = 3 [pid 14919] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14919] exit_group(0) = ? [pid 14919] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14919, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14920 ./strace-static-x86_64: Process 14920 attached [pid 14920] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14920] setpgid(0, 0) = 0 [pid 14920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14920] write(3, "1000", 4) = 4 [pid 14920] close(3) = 0 [pid 14920] memfd_create("syzkaller", 0) = 3 [pid 14920] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14920] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14920] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14920] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14920] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14920] ioctl(4, LOOP_CLR_FD) = 0 [pid 14920] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14920] close(4) = 0 [pid 14920] close(3) = 0 [pid 14920] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14920] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14920] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14920] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14920] open("./bus", O_RDONLY) = 3 [pid 14920] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14920] exit_group(0) = ? [pid 14920] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14920, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14921 ./strace-static-x86_64: Process 14921 attached [pid 14921] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14921] setpgid(0, 0) = 0 [pid 14921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14921] write(3, "1000", 4) = 4 [pid 14921] close(3) = 0 [pid 14921] memfd_create("syzkaller", 0) = 3 [pid 14921] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14921] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14921] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14921] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14921] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14921] ioctl(4, LOOP_CLR_FD) = 0 [pid 14921] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14921] close(4) = 0 [pid 14921] close(3) = 0 [pid 14921] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14921] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14921] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14921] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14921] open("./bus", O_RDONLY) = 3 [pid 14921] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14921] exit_group(0) = ? [pid 14921] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14921, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14922 ./strace-static-x86_64: Process 14922 attached [pid 14922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14922] setpgid(0, 0) = 0 [pid 14922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14922] write(3, "1000", 4) = 4 [pid 14922] close(3) = 0 [pid 14922] memfd_create("syzkaller", 0) = 3 [pid 14922] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14922] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14922] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14922] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14922] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14922] ioctl(4, LOOP_CLR_FD) = 0 [pid 14922] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14922] close(4) = 0 [pid 14922] close(3) = 0 [pid 14922] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14922] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14922] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14922] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14922] open("./bus", O_RDONLY) = 3 [pid 14922] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14922] exit_group(0) = ? [pid 14922] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14922, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14923 ./strace-static-x86_64: Process 14923 attached [pid 14923] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14923] setpgid(0, 0) = 0 [pid 14923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14923] write(3, "1000", 4) = 4 [pid 14923] close(3) = 0 [pid 14923] memfd_create("syzkaller", 0) = 3 [pid 14923] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14923] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14923] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14923] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14923] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14923] ioctl(4, LOOP_CLR_FD) = 0 [pid 14923] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14923] close(4) = 0 [pid 14923] close(3) = 0 [pid 14923] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14923] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14923] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14923] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14923] open("./bus", O_RDONLY) = 3 [pid 14923] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14923] exit_group(0) = ? [pid 14923] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14923, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14924 attached , child_tidptr=0x5555575235d0) = 14924 [pid 14924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14924] setpgid(0, 0) = 0 [pid 14924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14924] write(3, "1000", 4) = 4 [pid 14924] close(3) = 0 [pid 14924] memfd_create("syzkaller", 0) = 3 [pid 14924] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14924] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14924] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14924] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14924] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14924] ioctl(4, LOOP_CLR_FD) = 0 [pid 14924] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14924] close(4) = 0 [pid 14924] close(3) = 0 [pid 14924] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14924] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14924] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14924] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14924] open("./bus", O_RDONLY) = 3 [pid 14924] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14924] exit_group(0) = ? [pid 14924] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14924, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14925 attached , child_tidptr=0x5555575235d0) = 14925 [pid 14925] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14925] setpgid(0, 0) = 0 [pid 14925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14925] write(3, "1000", 4) = 4 [pid 14925] close(3) = 0 [pid 14925] memfd_create("syzkaller", 0) = 3 [pid 14925] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14925] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14925] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14925] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14925] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14925] ioctl(4, LOOP_CLR_FD) = 0 [pid 14925] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14925] close(4) = 0 [pid 14925] close(3) = 0 [pid 14925] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14925] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14925] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14925] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14925] open("./bus", O_RDONLY) = 3 [pid 14925] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14925] exit_group(0) = ? [pid 14925] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14925, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14926 attached , child_tidptr=0x5555575235d0) = 14926 [pid 14926] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14926] setpgid(0, 0) = 0 [pid 14926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14926] write(3, "1000", 4) = 4 [pid 14926] close(3) = 0 [pid 14926] memfd_create("syzkaller", 0) = 3 [pid 14926] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14926] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14926] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14926] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14926] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14926] ioctl(4, LOOP_CLR_FD) = 0 [pid 14926] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14926] close(4) = 0 [pid 14926] close(3) = 0 [pid 14926] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14926] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14926] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14926] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14926] open("./bus", O_RDONLY) = 3 [pid 14926] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14926] exit_group(0) = ? [pid 14926] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14926, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14927 attached , child_tidptr=0x5555575235d0) = 14927 [pid 14927] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14927] setpgid(0, 0) = 0 [pid 14927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14927] write(3, "1000", 4) = 4 [pid 14927] close(3) = 0 [pid 14927] memfd_create("syzkaller", 0) = 3 [pid 14927] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14927] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14927] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14927] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14927] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14927] ioctl(4, LOOP_CLR_FD) = 0 [pid 14927] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14927] close(4) = 0 [pid 14927] close(3) = 0 [pid 14927] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14927] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14927] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14927] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14927] open("./bus", O_RDONLY) = 3 [pid 14927] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14927] exit_group(0) = ? [pid 14927] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14927, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14928 ./strace-static-x86_64: Process 14928 attached [pid 14928] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14928] setpgid(0, 0) = 0 [pid 14928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14928] write(3, "1000", 4) = 4 [pid 14928] close(3) = 0 [pid 14928] memfd_create("syzkaller", 0) = 3 [pid 14928] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14928] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14928] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14928] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14928] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14928] ioctl(4, LOOP_CLR_FD) = 0 [pid 14928] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14928] close(4) = 0 [pid 14928] close(3) = 0 [pid 14928] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14928] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14928] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14928] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14928] open("./bus", O_RDONLY) = 3 [pid 14928] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14928] exit_group(0) = ? [pid 14928] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14928, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14929 ./strace-static-x86_64: Process 14929 attached [pid 14929] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14929] setpgid(0, 0) = 0 [pid 14929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14929] write(3, "1000", 4) = 4 [pid 14929] close(3) = 0 [pid 14929] memfd_create("syzkaller", 0) = 3 [pid 14929] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14929] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14929] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14929] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14929] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14929] ioctl(4, LOOP_CLR_FD) = 0 [pid 14929] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14929] close(4) = 0 [pid 14929] close(3) = 0 [pid 14929] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14929] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14929] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14929] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14929] open("./bus", O_RDONLY) = 3 [pid 14929] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14929] exit_group(0) = ? [pid 14929] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14929, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14930 ./strace-static-x86_64: Process 14930 attached [pid 14930] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14930] setpgid(0, 0) = 0 [pid 14930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14930] write(3, "1000", 4) = 4 [pid 14930] close(3) = 0 [pid 14930] memfd_create("syzkaller", 0) = 3 [pid 14930] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14930] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14930] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14930] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14930] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14930] ioctl(4, LOOP_CLR_FD) = 0 [pid 14930] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14930] close(4) = 0 [pid 14930] close(3) = 0 [pid 14930] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14930] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14930] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14930] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14930] open("./bus", O_RDONLY) = 3 [pid 14930] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14930] exit_group(0) = ? [pid 14930] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14930, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14931 attached , child_tidptr=0x5555575235d0) = 14931 [pid 14931] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14931] setpgid(0, 0) = 0 [pid 14931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14931] write(3, "1000", 4) = 4 [pid 14931] close(3) = 0 [pid 14931] memfd_create("syzkaller", 0) = 3 [pid 14931] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14931] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14931] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14931] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14931] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14931] ioctl(4, LOOP_CLR_FD) = 0 [pid 14931] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14931] close(4) = 0 [pid 14931] close(3) = 0 [pid 14931] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14931] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14931] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14931] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14931] open("./bus", O_RDONLY) = 3 [pid 14931] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14931] exit_group(0) = ? [pid 14931] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14931, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14932 attached , child_tidptr=0x5555575235d0) = 14932 [pid 14932] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14932] setpgid(0, 0) = 0 [pid 14932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14932] write(3, "1000", 4) = 4 [pid 14932] close(3) = 0 [pid 14932] memfd_create("syzkaller", 0) = 3 [pid 14932] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14932] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14932] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14932] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14932] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14932] ioctl(4, LOOP_CLR_FD) = 0 [pid 14932] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14932] close(4) = 0 [pid 14932] close(3) = 0 [pid 14932] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14932] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14932] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14932] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14932] open("./bus", O_RDONLY) = 3 [pid 14932] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14932] exit_group(0) = ? [pid 14932] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14932, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14933 attached , child_tidptr=0x5555575235d0) = 14933 [pid 14933] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14933] setpgid(0, 0) = 0 [pid 14933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14933] write(3, "1000", 4) = 4 [pid 14933] close(3) = 0 [pid 14933] memfd_create("syzkaller", 0) = 3 [pid 14933] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14933] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14933] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14933] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14933] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14933] ioctl(4, LOOP_CLR_FD) = 0 [pid 14933] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14933] close(4) = 0 [pid 14933] close(3) = 0 [pid 14933] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14933] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14933] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14933] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14933] open("./bus", O_RDONLY) = 3 [pid 14933] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14933] exit_group(0) = ? [pid 14933] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14933, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14934 ./strace-static-x86_64: Process 14934 attached [pid 14934] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14934] setpgid(0, 0) = 0 [pid 14934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14934] write(3, "1000", 4) = 4 [pid 14934] close(3) = 0 [pid 14934] memfd_create("syzkaller", 0) = 3 [pid 14934] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14934] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14934] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14934] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14934] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14934] ioctl(4, LOOP_CLR_FD) = 0 [pid 14934] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14934] close(4) = 0 [pid 14934] close(3) = 0 [pid 14934] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14934] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14934] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14934] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14934] open("./bus", O_RDONLY) = 3 [pid 14934] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14934] exit_group(0) = ? [pid 14934] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14934, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14935 ./strace-static-x86_64: Process 14935 attached [pid 14935] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14935] setpgid(0, 0) = 0 [pid 14935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14935] write(3, "1000", 4) = 4 [pid 14935] close(3) = 0 [pid 14935] memfd_create("syzkaller", 0) = 3 [pid 14935] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14935] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14935] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14935] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14935] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14935] ioctl(4, LOOP_CLR_FD) = 0 [pid 14935] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14935] close(4) = 0 [pid 14935] close(3) = 0 [pid 14935] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14935] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14935] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14935] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14935] open("./bus", O_RDONLY) = 3 [pid 14935] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14935] exit_group(0) = ? [pid 14935] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14935, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14936 attached , child_tidptr=0x5555575235d0) = 14936 [pid 14936] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14936] setpgid(0, 0) = 0 [pid 14936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14936] write(3, "1000", 4) = 4 [pid 14936] close(3) = 0 [pid 14936] memfd_create("syzkaller", 0) = 3 [pid 14936] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14936] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14936] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14936] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14936] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14936] ioctl(4, LOOP_CLR_FD) = 0 [pid 14936] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14936] close(4) = 0 [pid 14936] close(3) = 0 [pid 14936] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14936] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14936] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14936] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14936] open("./bus", O_RDONLY) = 3 [pid 14936] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14936] exit_group(0) = ? [pid 14936] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14936, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14937 ./strace-static-x86_64: Process 14937 attached [pid 14937] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14937] setpgid(0, 0) = 0 [pid 14937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14937] write(3, "1000", 4) = 4 [pid 14937] close(3) = 0 [pid 14937] memfd_create("syzkaller", 0) = 3 [pid 14937] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14937] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14937] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14937] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14937] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14937] ioctl(4, LOOP_CLR_FD) = 0 [pid 14937] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14937] close(4) = 0 [pid 14937] close(3) = 0 [pid 14937] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14937] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14937] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14937] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14937] open("./bus", O_RDONLY) = 3 [pid 14937] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14937] exit_group(0) = ? [pid 14937] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14937, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14938 ./strace-static-x86_64: Process 14938 attached [pid 14938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14938] setpgid(0, 0) = 0 [pid 14938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14938] write(3, "1000", 4) = 4 [pid 14938] close(3) = 0 [pid 14938] memfd_create("syzkaller", 0) = 3 [pid 14938] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14938] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14938] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14938] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14938] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14938] ioctl(4, LOOP_CLR_FD) = 0 [pid 14938] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14938] close(4) = 0 [pid 14938] close(3) = 0 [pid 14938] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14938] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14938] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14938] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14938] open("./bus", O_RDONLY) = 3 [pid 14938] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14938] exit_group(0) = ? [pid 14938] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14938, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14939 attached , child_tidptr=0x5555575235d0) = 14939 [pid 14939] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14939] setpgid(0, 0) = 0 [pid 14939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14939] write(3, "1000", 4) = 4 [pid 14939] close(3) = 0 [pid 14939] memfd_create("syzkaller", 0) = 3 [pid 14939] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14939] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14939] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14939] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14939] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14939] ioctl(4, LOOP_CLR_FD) = 0 [pid 14939] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14939] close(4) = 0 [pid 14939] close(3) = 0 [pid 14939] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14939] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14939] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14939] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14939] open("./bus", O_RDONLY) = 3 [pid 14939] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14939] exit_group(0) = ? [pid 14939] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14939, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14940 attached , child_tidptr=0x5555575235d0) = 14940 [pid 14940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14940] setpgid(0, 0) = 0 [pid 14940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14940] write(3, "1000", 4) = 4 [pid 14940] close(3) = 0 [pid 14940] memfd_create("syzkaller", 0) = 3 [pid 14940] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14940] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14940] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14940] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14940] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14940] ioctl(4, LOOP_CLR_FD) = 0 [pid 14940] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14940] close(4) = 0 [pid 14940] close(3) = 0 [pid 14940] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14940] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14940] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14940] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14940] open("./bus", O_RDONLY) = 3 [pid 14940] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14940] exit_group(0) = ? [pid 14940] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14940, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14941 ./strace-static-x86_64: Process 14941 attached [pid 14941] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14941] setpgid(0, 0) = 0 [pid 14941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14941] write(3, "1000", 4) = 4 [pid 14941] close(3) = 0 [pid 14941] memfd_create("syzkaller", 0) = 3 [pid 14941] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14941] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14941] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14941] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14941] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14941] ioctl(4, LOOP_CLR_FD) = 0 [pid 14941] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14941] close(4) = 0 [pid 14941] close(3) = 0 [pid 14941] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14941] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14941] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14941] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14941] open("./bus", O_RDONLY) = 3 [pid 14941] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14941] exit_group(0) = ? [pid 14941] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14941, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14942 ./strace-static-x86_64: Process 14942 attached [pid 14942] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14942] setpgid(0, 0) = 0 [pid 14942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14942] write(3, "1000", 4) = 4 [pid 14942] close(3) = 0 [pid 14942] memfd_create("syzkaller", 0) = 3 [pid 14942] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14942] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14942] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14942] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14942] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14942] ioctl(4, LOOP_CLR_FD) = 0 [pid 14942] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14942] close(4) = 0 [pid 14942] close(3) = 0 [pid 14942] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14942] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14942] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14942] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14942] open("./bus", O_RDONLY) = 3 [pid 14942] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14942] exit_group(0) = ? [pid 14942] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14942, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14943 ./strace-static-x86_64: Process 14943 attached [pid 14943] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14943] setpgid(0, 0) = 0 [pid 14943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14943] write(3, "1000", 4) = 4 [pid 14943] close(3) = 0 [pid 14943] memfd_create("syzkaller", 0) = 3 [pid 14943] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14943] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14943] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14943] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14943] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14943] ioctl(4, LOOP_CLR_FD) = 0 [pid 14943] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14943] close(4) = 0 [pid 14943] close(3) = 0 [pid 14943] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14943] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14943] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14943] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14943] open("./bus", O_RDONLY) = 3 [pid 14943] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14943] exit_group(0) = ? [pid 14943] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14943, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14944 ./strace-static-x86_64: Process 14944 attached [pid 14944] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14944] setpgid(0, 0) = 0 [pid 14944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14944] write(3, "1000", 4) = 4 [pid 14944] close(3) = 0 [pid 14944] memfd_create("syzkaller", 0) = 3 [pid 14944] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14944] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14944] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14944] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14944] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14944] ioctl(4, LOOP_CLR_FD) = 0 [pid 14944] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14944] close(4) = 0 [pid 14944] close(3) = 0 [pid 14944] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14944] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14944] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14944] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14944] open("./bus", O_RDONLY) = 3 [pid 14944] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14944] exit_group(0) = ? [pid 14944] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14944, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14945 ./strace-static-x86_64: Process 14945 attached [pid 14945] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14945] setpgid(0, 0) = 0 [pid 14945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14945] write(3, "1000", 4) = 4 [pid 14945] close(3) = 0 [pid 14945] memfd_create("syzkaller", 0) = 3 [pid 14945] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14945] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14945] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14945] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14945] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14945] ioctl(4, LOOP_CLR_FD) = 0 [pid 14945] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14945] close(4) = 0 [pid 14945] close(3) = 0 [pid 14945] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14945] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14945] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14945] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14945] open("./bus", O_RDONLY) = 3 [pid 14945] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14945] exit_group(0) = ? [pid 14945] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14945, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14946 ./strace-static-x86_64: Process 14946 attached [pid 14946] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14946] setpgid(0, 0) = 0 [pid 14946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14946] write(3, "1000", 4) = 4 [pid 14946] close(3) = 0 [pid 14946] memfd_create("syzkaller", 0) = 3 [pid 14946] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14946] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14946] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14946] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14946] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14946] ioctl(4, LOOP_CLR_FD) = 0 [pid 14946] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14946] close(4) = 0 [pid 14946] close(3) = 0 [pid 14946] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14946] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14946] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14946] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14946] open("./bus", O_RDONLY) = 3 [pid 14946] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14946] exit_group(0) = ? [pid 14946] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14946, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14947 attached , child_tidptr=0x5555575235d0) = 14947 [pid 14947] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14947] setpgid(0, 0) = 0 [pid 14947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14947] write(3, "1000", 4) = 4 [pid 14947] close(3) = 0 [pid 14947] memfd_create("syzkaller", 0) = 3 [pid 14947] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14947] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14947] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14947] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14947] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14947] ioctl(4, LOOP_CLR_FD) = 0 [pid 14947] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14947] close(4) = 0 [pid 14947] close(3) = 0 [pid 14947] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14947] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14947] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14947] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14947] open("./bus", O_RDONLY) = 3 [pid 14947] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14947] exit_group(0) = ? [pid 14947] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14947, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14948 attached , child_tidptr=0x5555575235d0) = 14948 [pid 14948] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14948] setpgid(0, 0) = 0 [pid 14948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14948] write(3, "1000", 4) = 4 [pid 14948] close(3) = 0 [pid 14948] memfd_create("syzkaller", 0) = 3 [pid 14948] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14948] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14948] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14948] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14948] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14948] ioctl(4, LOOP_CLR_FD) = 0 [pid 14948] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14948] close(4) = 0 [pid 14948] close(3) = 0 [pid 14948] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14948] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14948] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14948] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14948] open("./bus", O_RDONLY) = 3 [pid 14948] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14948] exit_group(0) = ? [pid 14948] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14948, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14949 ./strace-static-x86_64: Process 14949 attached [pid 14949] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14949] setpgid(0, 0) = 0 [pid 14949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14949] write(3, "1000", 4) = 4 [pid 14949] close(3) = 0 [pid 14949] memfd_create("syzkaller", 0) = 3 [pid 14949] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14949] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14949] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14949] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14949] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14949] ioctl(4, LOOP_CLR_FD) = 0 [pid 14949] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14949] close(4) = 0 [pid 14949] close(3) = 0 [pid 14949] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14949] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14949] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14949] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14949] open("./bus", O_RDONLY) = 3 [pid 14949] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14949] exit_group(0) = ? [pid 14949] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14949, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14950 ./strace-static-x86_64: Process 14950 attached [pid 14950] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14950] setpgid(0, 0) = 0 [pid 14950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14950] write(3, "1000", 4) = 4 [pid 14950] close(3) = 0 [pid 14950] memfd_create("syzkaller", 0) = 3 [pid 14950] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14950] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14950] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14950] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14950] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14950] ioctl(4, LOOP_CLR_FD) = 0 [pid 14950] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14950] close(4) = 0 [pid 14950] close(3) = 0 [pid 14950] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14950] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14950] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14950] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14950] open("./bus", O_RDONLY) = 3 [pid 14950] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14950] exit_group(0) = ? [pid 14950] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14950, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14951 attached , child_tidptr=0x5555575235d0) = 14951 [pid 14951] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14951] setpgid(0, 0) = 0 [pid 14951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14951] write(3, "1000", 4) = 4 [pid 14951] close(3) = 0 [pid 14951] memfd_create("syzkaller", 0) = 3 [pid 14951] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14951] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14951] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14951] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14951] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14951] ioctl(4, LOOP_CLR_FD) = 0 [pid 14951] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14951] close(4) = 0 [pid 14951] close(3) = 0 [pid 14951] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14951] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14951] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14951] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14951] open("./bus", O_RDONLY) = 3 [pid 14951] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14951] exit_group(0) = ? [pid 14951] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14951, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14952 ./strace-static-x86_64: Process 14952 attached [pid 14952] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14952] setpgid(0, 0) = 0 [pid 14952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14952] write(3, "1000", 4) = 4 [pid 14952] close(3) = 0 [pid 14952] memfd_create("syzkaller", 0) = 3 [pid 14952] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14952] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14952] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14952] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14952] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14952] ioctl(4, LOOP_CLR_FD) = 0 [pid 14952] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14952] close(4) = 0 [pid 14952] close(3) = 0 [pid 14952] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14952] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14952] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14952] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14952] open("./bus", O_RDONLY) = 3 [pid 14952] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14952] exit_group(0) = ? [pid 14952] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14952, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14953 attached , child_tidptr=0x5555575235d0) = 14953 [pid 14953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14953] setpgid(0, 0) = 0 [pid 14953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14953] write(3, "1000", 4) = 4 [pid 14953] close(3) = 0 [pid 14953] memfd_create("syzkaller", 0) = 3 [pid 14953] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14953] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14953] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14953] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14953] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14953] ioctl(4, LOOP_CLR_FD) = 0 [pid 14953] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14953] close(4) = 0 [pid 14953] close(3) = 0 [pid 14953] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14953] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14953] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14953] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14953] open("./bus", O_RDONLY) = 3 [pid 14953] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14953] exit_group(0) = ? [pid 14953] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14953, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14954 attached , child_tidptr=0x5555575235d0) = 14954 [pid 14954] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14954] setpgid(0, 0) = 0 [pid 14954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14954] write(3, "1000", 4) = 4 [pid 14954] close(3) = 0 [pid 14954] memfd_create("syzkaller", 0) = 3 [pid 14954] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14954] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14954] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14954] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14954] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14954] ioctl(4, LOOP_CLR_FD) = 0 [pid 14954] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14954] close(4) = 0 [pid 14954] close(3) = 0 [pid 14954] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14954] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14954] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14954] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14954] open("./bus", O_RDONLY) = 3 [pid 14954] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14954] exit_group(0) = ? [pid 14954] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14954, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14955 attached , child_tidptr=0x5555575235d0) = 14955 [pid 14955] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14955] setpgid(0, 0) = 0 [pid 14955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14955] write(3, "1000", 4) = 4 [pid 14955] close(3) = 0 [pid 14955] memfd_create("syzkaller", 0) = 3 [pid 14955] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14955] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14955] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14955] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14955] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14955] ioctl(4, LOOP_CLR_FD) = 0 [pid 14955] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14955] close(4) = 0 [pid 14955] close(3) = 0 [pid 14955] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14955] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14955] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14955] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14955] open("./bus", O_RDONLY) = 3 [pid 14955] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14955] exit_group(0) = ? [pid 14955] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14955, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14956 attached , child_tidptr=0x5555575235d0) = 14956 [pid 14956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14956] setpgid(0, 0) = 0 [pid 14956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14956] write(3, "1000", 4) = 4 [pid 14956] close(3) = 0 [pid 14956] memfd_create("syzkaller", 0) = 3 [pid 14956] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14956] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14956] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14956] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14956] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14956] ioctl(4, LOOP_CLR_FD) = 0 [pid 14956] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14956] close(4) = 0 [pid 14956] close(3) = 0 [pid 14956] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14956] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14956] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14956] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14956] open("./bus", O_RDONLY) = 3 [pid 14956] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14956] exit_group(0) = ? [pid 14956] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14956, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14957 attached , child_tidptr=0x5555575235d0) = 14957 [pid 14957] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14957] setpgid(0, 0) = 0 [pid 14957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14957] write(3, "1000", 4) = 4 [pid 14957] close(3) = 0 [pid 14957] memfd_create("syzkaller", 0) = 3 [pid 14957] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14957] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14957] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14957] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14957] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14957] ioctl(4, LOOP_CLR_FD) = 0 [pid 14957] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14957] close(4) = 0 [pid 14957] close(3) = 0 [pid 14957] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14957] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14957] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14957] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14957] open("./bus", O_RDONLY) = 3 [pid 14957] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14957] exit_group(0) = ? [pid 14957] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14957, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14958 ./strace-static-x86_64: Process 14958 attached [pid 14958] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14958] setpgid(0, 0) = 0 [pid 14958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14958] write(3, "1000", 4) = 4 [pid 14958] close(3) = 0 [pid 14958] memfd_create("syzkaller", 0) = 3 [pid 14958] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14958] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14958] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14958] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14958] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14958] ioctl(4, LOOP_CLR_FD) = 0 [pid 14958] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14958] close(4) = 0 [pid 14958] close(3) = 0 [pid 14958] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14958] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14958] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14958] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14958] open("./bus", O_RDONLY) = 3 [pid 14958] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14958] exit_group(0) = ? [pid 14958] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14958, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14959 ./strace-static-x86_64: Process 14959 attached [pid 14959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14959] setpgid(0, 0) = 0 [pid 14959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14959] write(3, "1000", 4) = 4 [pid 14959] close(3) = 0 [pid 14959] memfd_create("syzkaller", 0) = 3 [pid 14959] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14959] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14959] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14959] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14959] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14959] ioctl(4, LOOP_CLR_FD) = 0 [pid 14959] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14959] close(4) = 0 [pid 14959] close(3) = 0 [pid 14959] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14959] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14959] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14959] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14959] open("./bus", O_RDONLY) = 3 [pid 14959] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14959] exit_group(0) = ? [pid 14959] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14959, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14960 attached , child_tidptr=0x5555575235d0) = 14960 [pid 14960] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14960] setpgid(0, 0) = 0 [pid 14960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14960] write(3, "1000", 4) = 4 [pid 14960] close(3) = 0 [pid 14960] memfd_create("syzkaller", 0) = 3 [pid 14960] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14960] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14960] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14960] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14960] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14960] ioctl(4, LOOP_CLR_FD) = 0 [pid 14960] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14960] close(4) = 0 [pid 14960] close(3) = 0 [pid 14960] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14960] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14960] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14960] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14960] open("./bus", O_RDONLY) = 3 [pid 14960] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14960] exit_group(0) = ? [pid 14960] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14960, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14961 ./strace-static-x86_64: Process 14961 attached [pid 14961] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14961] setpgid(0, 0) = 0 [pid 14961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14961] write(3, "1000", 4) = 4 [pid 14961] close(3) = 0 [pid 14961] memfd_create("syzkaller", 0) = 3 [pid 14961] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14961] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14961] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14961] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14961] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14961] ioctl(4, LOOP_CLR_FD) = 0 [pid 14961] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14961] close(4) = 0 [pid 14961] close(3) = 0 [pid 14961] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14961] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14961] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14961] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14961] open("./bus", O_RDONLY) = 3 [pid 14961] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14961] exit_group(0) = ? [pid 14961] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14961, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14962 attached , child_tidptr=0x5555575235d0) = 14962 [pid 14962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14962] setpgid(0, 0) = 0 [pid 14962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14962] write(3, "1000", 4) = 4 [pid 14962] close(3) = 0 [pid 14962] memfd_create("syzkaller", 0) = 3 [pid 14962] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14962] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14962] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14962] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14962] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14962] ioctl(4, LOOP_CLR_FD) = 0 [pid 14962] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14962] close(4) = 0 [pid 14962] close(3) = 0 [pid 14962] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14962] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14962] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14962] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14962] open("./bus", O_RDONLY) = 3 [pid 14962] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14962] exit_group(0) = ? [pid 14962] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14962, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14963 ./strace-static-x86_64: Process 14963 attached [pid 14963] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14963] setpgid(0, 0) = 0 [pid 14963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14963] write(3, "1000", 4) = 4 [pid 14963] close(3) = 0 [pid 14963] memfd_create("syzkaller", 0) = 3 [pid 14963] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14963] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14963] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14963] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14963] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14963] ioctl(4, LOOP_CLR_FD) = 0 [pid 14963] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14963] close(4) = 0 [pid 14963] close(3) = 0 [pid 14963] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14963] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14963] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14963] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14963] open("./bus", O_RDONLY) = 3 [pid 14963] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14963] exit_group(0) = ? [pid 14963] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14963, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14964 ./strace-static-x86_64: Process 14964 attached [pid 14964] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14964] setpgid(0, 0) = 0 [pid 14964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14964] write(3, "1000", 4) = 4 [pid 14964] close(3) = 0 [pid 14964] memfd_create("syzkaller", 0) = 3 [pid 14964] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14964] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14964] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14964] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14964] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14964] ioctl(4, LOOP_CLR_FD) = 0 [pid 14964] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14964] close(4) = 0 [pid 14964] close(3) = 0 [pid 14964] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14964] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14964] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14964] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14964] open("./bus", O_RDONLY) = 3 [pid 14964] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14964] exit_group(0) = ? [pid 14964] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14964, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14965 attached , child_tidptr=0x5555575235d0) = 14965 [pid 14965] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14965] setpgid(0, 0) = 0 [pid 14965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14965] write(3, "1000", 4) = 4 [pid 14965] close(3) = 0 [pid 14965] memfd_create("syzkaller", 0) = 3 [pid 14965] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14965] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14965] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14965] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14965] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14965] ioctl(4, LOOP_CLR_FD) = 0 [pid 14965] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14965] close(4) = 0 [pid 14965] close(3) = 0 [pid 14965] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14965] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14965] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14965] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14965] open("./bus", O_RDONLY) = 3 [pid 14965] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14965] exit_group(0) = ? [pid 14965] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14965, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14966 ./strace-static-x86_64: Process 14966 attached [pid 14966] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14966] setpgid(0, 0) = 0 [pid 14966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14966] write(3, "1000", 4) = 4 [pid 14966] close(3) = 0 [pid 14966] memfd_create("syzkaller", 0) = 3 [pid 14966] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14966] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14966] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14966] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14966] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14966] ioctl(4, LOOP_CLR_FD) = 0 [pid 14966] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14966] close(4) = 0 [pid 14966] close(3) = 0 [pid 14966] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14966] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14966] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14966] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14966] open("./bus", O_RDONLY) = 3 [pid 14966] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14966] exit_group(0) = ? [pid 14966] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14966, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14967 ./strace-static-x86_64: Process 14967 attached [pid 14967] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14967] setpgid(0, 0) = 0 [pid 14967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14967] write(3, "1000", 4) = 4 [pid 14967] close(3) = 0 [pid 14967] memfd_create("syzkaller", 0) = 3 [pid 14967] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14967] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14967] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14967] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14967] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14967] ioctl(4, LOOP_CLR_FD) = 0 [pid 14967] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14967] close(4) = 0 [pid 14967] close(3) = 0 [pid 14967] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14967] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14967] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14967] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14967] open("./bus", O_RDONLY) = 3 [pid 14967] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14967] exit_group(0) = ? [pid 14967] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14967, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14968 attached , child_tidptr=0x5555575235d0) = 14968 [pid 14968] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14968] setpgid(0, 0) = 0 [pid 14968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14968] write(3, "1000", 4) = 4 [pid 14968] close(3) = 0 [pid 14968] memfd_create("syzkaller", 0) = 3 [pid 14968] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14968] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14968] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14968] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14968] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14968] ioctl(4, LOOP_CLR_FD) = 0 [pid 14968] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14968] close(4) = 0 [pid 14968] close(3) = 0 [pid 14968] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14968] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14968] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14968] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14968] open("./bus", O_RDONLY) = 3 [pid 14968] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14968] exit_group(0) = ? [pid 14968] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14968, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14969 ./strace-static-x86_64: Process 14969 attached [pid 14969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14969] setpgid(0, 0) = 0 [pid 14969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14969] write(3, "1000", 4) = 4 [pid 14969] close(3) = 0 [pid 14969] memfd_create("syzkaller", 0) = 3 [pid 14969] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14969] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14969] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14969] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14969] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14969] ioctl(4, LOOP_CLR_FD) = 0 [pid 14969] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14969] close(4) = 0 [pid 14969] close(3) = 0 [pid 14969] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14969] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14969] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14969] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14969] open("./bus", O_RDONLY) = 3 [pid 14969] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14969] exit_group(0) = ? [pid 14969] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14969, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14970 ./strace-static-x86_64: Process 14970 attached [pid 14970] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14970] setpgid(0, 0) = 0 [pid 14970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14970] write(3, "1000", 4) = 4 [pid 14970] close(3) = 0 [pid 14970] memfd_create("syzkaller", 0) = 3 [pid 14970] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14970] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14970] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14970] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14970] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14970] ioctl(4, LOOP_CLR_FD) = 0 [pid 14970] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14970] close(4) = 0 [pid 14970] close(3) = 0 [pid 14970] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14970] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14970] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14970] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14970] open("./bus", O_RDONLY) = 3 [pid 14970] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14970] exit_group(0) = ? [pid 14970] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14970, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14971 ./strace-static-x86_64: Process 14971 attached [pid 14971] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14971] setpgid(0, 0) = 0 [pid 14971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14971] write(3, "1000", 4) = 4 [pid 14971] close(3) = 0 [pid 14971] memfd_create("syzkaller", 0) = 3 [pid 14971] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14971] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14971] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14971] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14971] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14971] ioctl(4, LOOP_CLR_FD) = 0 [pid 14971] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14971] close(4) = 0 [pid 14971] close(3) = 0 [pid 14971] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14971] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14971] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14971] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14971] open("./bus", O_RDONLY) = 3 [pid 14971] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14971] exit_group(0) = ? [pid 14971] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14971, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14972 ./strace-static-x86_64: Process 14972 attached [pid 14972] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14972] setpgid(0, 0) = 0 [pid 14972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14972] write(3, "1000", 4) = 4 [pid 14972] close(3) = 0 [pid 14972] memfd_create("syzkaller", 0) = 3 [pid 14972] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14972] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14972] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14972] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14972] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14972] ioctl(4, LOOP_CLR_FD) = 0 [pid 14972] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14972] close(4) = 0 [pid 14972] close(3) = 0 [pid 14972] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14972] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14972] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14972] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14972] open("./bus", O_RDONLY) = 3 [pid 14972] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14972] exit_group(0) = ? [pid 14972] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14972, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14973 attached , child_tidptr=0x5555575235d0) = 14973 [pid 14973] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14973] setpgid(0, 0) = 0 [pid 14973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14973] write(3, "1000", 4) = 4 [pid 14973] close(3) = 0 [pid 14973] memfd_create("syzkaller", 0) = 3 [pid 14973] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14973] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14973] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14973] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14973] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14973] ioctl(4, LOOP_CLR_FD) = 0 [pid 14973] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14973] close(4) = 0 [pid 14973] close(3) = 0 [pid 14973] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14973] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14973] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14973] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14973] open("./bus", O_RDONLY) = 3 [pid 14973] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14973] exit_group(0) = ? [pid 14973] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14973, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14974 ./strace-static-x86_64: Process 14974 attached [pid 14974] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14974] setpgid(0, 0) = 0 [pid 14974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14974] write(3, "1000", 4) = 4 [pid 14974] close(3) = 0 [pid 14974] memfd_create("syzkaller", 0) = 3 [pid 14974] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14974] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14974] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14974] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14974] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14974] ioctl(4, LOOP_CLR_FD) = 0 [pid 14974] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14974] close(4) = 0 [pid 14974] close(3) = 0 [pid 14974] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14974] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14974] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14974] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14974] open("./bus", O_RDONLY) = 3 [pid 14974] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14974] exit_group(0) = ? [pid 14974] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14974, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14975 ./strace-static-x86_64: Process 14975 attached [pid 14975] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14975] setpgid(0, 0) = 0 [pid 14975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14975] write(3, "1000", 4) = 4 [pid 14975] close(3) = 0 [pid 14975] memfd_create("syzkaller", 0) = 3 [pid 14975] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14975] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14975] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14975] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14975] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14975] ioctl(4, LOOP_CLR_FD) = 0 [pid 14975] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14975] close(4) = 0 [pid 14975] close(3) = 0 [pid 14975] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14975] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14975] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14975] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14975] open("./bus", O_RDONLY) = 3 [pid 14975] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14975] exit_group(0) = ? [pid 14975] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14975, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14976 ./strace-static-x86_64: Process 14976 attached [pid 14976] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14976] setpgid(0, 0) = 0 [pid 14976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14976] write(3, "1000", 4) = 4 [pid 14976] close(3) = 0 [pid 14976] memfd_create("syzkaller", 0) = 3 [pid 14976] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14976] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14976] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14976] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14976] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14976] ioctl(4, LOOP_CLR_FD) = 0 [pid 14976] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14976] close(4) = 0 [pid 14976] close(3) = 0 [pid 14976] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14976] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14976] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14976] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14976] open("./bus", O_RDONLY) = 3 [pid 14976] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14976] exit_group(0) = ? [pid 14976] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14976, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14977 attached , child_tidptr=0x5555575235d0) = 14977 [pid 14977] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14977] setpgid(0, 0) = 0 [pid 14977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14977] write(3, "1000", 4) = 4 [pid 14977] close(3) = 0 [pid 14977] memfd_create("syzkaller", 0) = 3 [pid 14977] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14977] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14977] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14977] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14977] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14977] ioctl(4, LOOP_CLR_FD) = 0 [pid 14977] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14977] close(4) = 0 [pid 14977] close(3) = 0 [pid 14977] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14977] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14977] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14977] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14977] open("./bus", O_RDONLY) = 3 [pid 14977] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14977] exit_group(0) = ? [pid 14977] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14977, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14978 ./strace-static-x86_64: Process 14978 attached [pid 14978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14978] setpgid(0, 0) = 0 [pid 14978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14978] write(3, "1000", 4) = 4 [pid 14978] close(3) = 0 [pid 14978] memfd_create("syzkaller", 0) = 3 [pid 14978] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14978] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14978] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14978] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14978] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14978] ioctl(4, LOOP_CLR_FD) = 0 [pid 14978] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14978] close(4) = 0 [pid 14978] close(3) = 0 [pid 14978] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14978] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14978] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14978] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14978] open("./bus", O_RDONLY) = 3 [pid 14978] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14978] exit_group(0) = ? [pid 14978] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14978, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14979 attached , child_tidptr=0x5555575235d0) = 14979 [pid 14979] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14979] setpgid(0, 0) = 0 [pid 14979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14979] write(3, "1000", 4) = 4 [pid 14979] close(3) = 0 [pid 14979] memfd_create("syzkaller", 0) = 3 [pid 14979] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14979] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14979] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14979] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14979] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14979] ioctl(4, LOOP_CLR_FD) = 0 [pid 14979] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14979] close(4) = 0 [pid 14979] close(3) = 0 [pid 14979] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14979] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14979] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14979] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14979] open("./bus", O_RDONLY) = 3 [pid 14979] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14979] exit_group(0) = ? [pid 14979] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14979, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14980 attached , child_tidptr=0x5555575235d0) = 14980 [pid 14980] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14980] setpgid(0, 0) = 0 [pid 14980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14980] write(3, "1000", 4) = 4 [pid 14980] close(3) = 0 [pid 14980] memfd_create("syzkaller", 0) = 3 [pid 14980] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14980] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14980] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14980] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14980] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14980] ioctl(4, LOOP_CLR_FD) = 0 [pid 14980] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14980] close(4) = 0 [pid 14980] close(3) = 0 [pid 14980] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14980] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14980] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14980] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14980] open("./bus", O_RDONLY) = 3 [pid 14980] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14980] exit_group(0) = ? [pid 14980] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14980, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14981 ./strace-static-x86_64: Process 14981 attached [pid 14981] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14981] setpgid(0, 0) = 0 [pid 14981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14981] write(3, "1000", 4) = 4 [pid 14981] close(3) = 0 [pid 14981] memfd_create("syzkaller", 0) = 3 [pid 14981] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14981] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14981] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14981] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14981] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14981] ioctl(4, LOOP_CLR_FD) = 0 [pid 14981] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14981] close(4) = 0 [pid 14981] close(3) = 0 [pid 14981] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14981] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14981] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14981] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14981] open("./bus", O_RDONLY) = 3 [pid 14981] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14981] exit_group(0) = ? [pid 14981] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14981, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14982 ./strace-static-x86_64: Process 14982 attached [pid 14982] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14982] setpgid(0, 0) = 0 [pid 14982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14982] write(3, "1000", 4) = 4 [pid 14982] close(3) = 0 [pid 14982] memfd_create("syzkaller", 0) = 3 [pid 14982] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14982] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14982] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14982] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14982] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14982] ioctl(4, LOOP_CLR_FD) = 0 [pid 14982] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14982] close(4) = 0 [pid 14982] close(3) = 0 [pid 14982] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14982] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14982] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14982] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14982] open("./bus", O_RDONLY) = 3 [pid 14982] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14982] exit_group(0) = ? [pid 14982] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14982, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14983 ./strace-static-x86_64: Process 14983 attached [pid 14983] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14983] setpgid(0, 0) = 0 [pid 14983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14983] write(3, "1000", 4) = 4 [pid 14983] close(3) = 0 [pid 14983] memfd_create("syzkaller", 0) = 3 [pid 14983] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14983] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14983] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14983] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14983] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14983] ioctl(4, LOOP_CLR_FD) = 0 [pid 14983] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14983] close(4) = 0 [pid 14983] close(3) = 0 [pid 14983] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14983] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14983] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14983] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14983] open("./bus", O_RDONLY) = 3 [pid 14983] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14983] exit_group(0) = ? [pid 14983] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14983, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14984 attached , child_tidptr=0x5555575235d0) = 14984 [pid 14984] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14984] setpgid(0, 0) = 0 [pid 14984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14984] write(3, "1000", 4) = 4 [pid 14984] close(3) = 0 [pid 14984] memfd_create("syzkaller", 0) = 3 [pid 14984] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14984] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14984] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14984] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14984] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14984] ioctl(4, LOOP_CLR_FD) = 0 [pid 14984] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14984] close(4) = 0 [pid 14984] close(3) = 0 [pid 14984] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14984] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14984] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14984] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14984] open("./bus", O_RDONLY) = 3 [pid 14984] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14984] exit_group(0) = ? [pid 14984] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14984, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14985 attached , child_tidptr=0x5555575235d0) = 14985 [pid 14985] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14985] setpgid(0, 0) = 0 [pid 14985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14985] write(3, "1000", 4) = 4 [pid 14985] close(3) = 0 [pid 14985] memfd_create("syzkaller", 0) = 3 [pid 14985] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14985] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14985] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14985] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14985] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14985] ioctl(4, LOOP_CLR_FD) = 0 [pid 14985] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14985] close(4) = 0 [pid 14985] close(3) = 0 [pid 14985] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14985] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14985] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14985] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14985] open("./bus", O_RDONLY) = 3 [pid 14985] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14985] exit_group(0) = ? [pid 14985] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14985, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14986 ./strace-static-x86_64: Process 14986 attached [pid 14986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14986] setpgid(0, 0) = 0 [pid 14986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14986] write(3, "1000", 4) = 4 [pid 14986] close(3) = 0 [pid 14986] memfd_create("syzkaller", 0) = 3 [pid 14986] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14986] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14986] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14986] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14986] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14986] ioctl(4, LOOP_CLR_FD) = 0 [pid 14986] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14986] close(4) = 0 [pid 14986] close(3) = 0 [pid 14986] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14986] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14986] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14986] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14986] open("./bus", O_RDONLY) = 3 [pid 14986] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14986] exit_group(0) = ? [pid 14986] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14986, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14987 ./strace-static-x86_64: Process 14987 attached [pid 14987] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14987] setpgid(0, 0) = 0 [pid 14987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14987] write(3, "1000", 4) = 4 [pid 14987] close(3) = 0 [pid 14987] memfd_create("syzkaller", 0) = 3 [pid 14987] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14987] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14987] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14987] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14987] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14987] ioctl(4, LOOP_CLR_FD) = 0 [pid 14987] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14987] close(4) = 0 [pid 14987] close(3) = 0 [pid 14987] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14987] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14987] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14987] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14987] open("./bus", O_RDONLY) = 3 [pid 14987] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14987] exit_group(0) = ? [pid 14987] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14987, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14988 ./strace-static-x86_64: Process 14988 attached [pid 14988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14988] setpgid(0, 0) = 0 [pid 14988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14988] write(3, "1000", 4) = 4 [pid 14988] close(3) = 0 [pid 14988] memfd_create("syzkaller", 0) = 3 [pid 14988] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14988] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14988] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14988] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14988] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14988] ioctl(4, LOOP_CLR_FD) = 0 [pid 14988] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14988] close(4) = 0 [pid 14988] close(3) = 0 [pid 14988] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14988] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14988] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14988] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14988] open("./bus", O_RDONLY) = 3 [pid 14988] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14988] exit_group(0) = ? [pid 14988] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14988, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14989 attached , child_tidptr=0x5555575235d0) = 14989 [pid 14989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14989] setpgid(0, 0) = 0 [pid 14989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14989] write(3, "1000", 4) = 4 [pid 14989] close(3) = 0 [pid 14989] memfd_create("syzkaller", 0) = 3 [pid 14989] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14989] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14989] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14989] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14989] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14989] ioctl(4, LOOP_CLR_FD) = 0 [pid 14989] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14989] close(4) = 0 [pid 14989] close(3) = 0 [pid 14989] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14989] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14989] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14989] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14989] open("./bus", O_RDONLY) = 3 [pid 14989] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14989] exit_group(0) = ? [pid 14989] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14989, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14990 attached , child_tidptr=0x5555575235d0) = 14990 [pid 14990] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14990] setpgid(0, 0) = 0 [pid 14990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14990] write(3, "1000", 4) = 4 [pid 14990] close(3) = 0 [pid 14990] memfd_create("syzkaller", 0) = 3 [pid 14990] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14990] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14990] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14990] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14990] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14990] ioctl(4, LOOP_CLR_FD) = 0 [pid 14990] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14990] close(4) = 0 [pid 14990] close(3) = 0 [pid 14990] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14990] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14990] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14990] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14990] open("./bus", O_RDONLY) = 3 [pid 14990] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14990] exit_group(0) = ? [pid 14990] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14990, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14991 attached , child_tidptr=0x5555575235d0) = 14991 [pid 14991] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14991] setpgid(0, 0) = 0 [pid 14991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14991] write(3, "1000", 4) = 4 [pid 14991] close(3) = 0 [pid 14991] memfd_create("syzkaller", 0) = 3 [pid 14991] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14991] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14991] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14991] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14991] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14991] ioctl(4, LOOP_CLR_FD) = 0 [pid 14991] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14991] close(4) = 0 [pid 14991] close(3) = 0 [pid 14991] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14991] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14991] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14991] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14991] open("./bus", O_RDONLY) = 3 [pid 14991] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14991] exit_group(0) = ? [pid 14991] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14991, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14992 ./strace-static-x86_64: Process 14992 attached [pid 14992] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14992] setpgid(0, 0) = 0 [pid 14992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14992] write(3, "1000", 4) = 4 [pid 14992] close(3) = 0 [pid 14992] memfd_create("syzkaller", 0) = 3 [pid 14992] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14992] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14992] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14992] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14992] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14992] ioctl(4, LOOP_CLR_FD) = 0 [pid 14992] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14992] close(4) = 0 [pid 14992] close(3) = 0 [pid 14992] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14992] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14992] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14992] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14992] open("./bus", O_RDONLY) = 3 [pid 14992] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14992] exit_group(0) = ? [pid 14992] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14992, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14993 ./strace-static-x86_64: Process 14993 attached [pid 14993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14993] setpgid(0, 0) = 0 [pid 14993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14993] write(3, "1000", 4) = 4 [pid 14993] close(3) = 0 [pid 14993] memfd_create("syzkaller", 0) = 3 [pid 14993] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14993] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14993] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14993] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14993] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14993] ioctl(4, LOOP_CLR_FD) = 0 [pid 14993] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14993] close(4) = 0 [pid 14993] close(3) = 0 [pid 14993] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14993] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14993] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14993] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14993] open("./bus", O_RDONLY) = 3 [pid 14993] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14993] exit_group(0) = ? [pid 14993] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14993, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14994 ./strace-static-x86_64: Process 14994 attached [pid 14994] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14994] setpgid(0, 0) = 0 [pid 14994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14994] write(3, "1000", 4) = 4 [pid 14994] close(3) = 0 [pid 14994] memfd_create("syzkaller", 0) = 3 [pid 14994] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14994] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14994] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14994] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14994] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14994] ioctl(4, LOOP_CLR_FD) = 0 [pid 14994] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14994] close(4) = 0 [pid 14994] close(3) = 0 [pid 14994] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14994] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14994] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14994] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14994] open("./bus", O_RDONLY) = 3 [pid 14994] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14994] exit_group(0) = ? [pid 14994] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14994, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 14995 ./strace-static-x86_64: Process 14995 attached [pid 14995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14995] setpgid(0, 0) = 0 [pid 14995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14995] write(3, "1000", 4) = 4 [pid 14995] close(3) = 0 [pid 14995] memfd_create("syzkaller", 0) = 3 [pid 14995] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14995] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14995] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14995] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14995] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14995] ioctl(4, LOOP_CLR_FD) = 0 [pid 14995] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14995] close(4) = 0 [pid 14995] close(3) = 0 [pid 14995] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14995] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14995] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14995] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14995] open("./bus", O_RDONLY) = 3 [pid 14995] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14995] exit_group(0) = ? [pid 14995] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14995, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14996 attached , child_tidptr=0x5555575235d0) = 14996 [pid 14996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14996] setpgid(0, 0) = 0 [pid 14996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14996] write(3, "1000", 4) = 4 [pid 14996] close(3) = 0 [pid 14996] memfd_create("syzkaller", 0) = 3 [pid 14996] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14996] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14996] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14996] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14996] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14996] ioctl(4, LOOP_CLR_FD) = 0 [pid 14996] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14996] close(4) = 0 [pid 14996] close(3) = 0 [pid 14996] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14996] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14996] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14996] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14996] open("./bus", O_RDONLY) = 3 [pid 14996] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14996] exit_group(0) = ? [pid 14996] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14996, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14997 attached , child_tidptr=0x5555575235d0) = 14997 [pid 14997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14997] setpgid(0, 0) = 0 [pid 14997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14997] write(3, "1000", 4) = 4 [pid 14997] close(3) = 0 [pid 14997] memfd_create("syzkaller", 0) = 3 [pid 14997] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14997] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14997] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14997] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14997] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14997] ioctl(4, LOOP_CLR_FD) = 0 [pid 14997] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14997] close(4) = 0 [pid 14997] close(3) = 0 [pid 14997] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14997] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14997] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14997] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14997] open("./bus", O_RDONLY) = 3 [pid 14997] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14997] exit_group(0) = ? [pid 14997] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14997, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14998 attached , child_tidptr=0x5555575235d0) = 14998 [pid 14998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14998] setpgid(0, 0) = 0 [pid 14998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14998] write(3, "1000", 4) = 4 [pid 14998] close(3) = 0 [pid 14998] memfd_create("syzkaller", 0) = 3 [pid 14998] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14998] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14998] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14998] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14998] ioctl(4, LOOP_CLR_FD) = 0 [pid 14998] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14998] close(4) = 0 [pid 14998] close(3) = 0 [pid 14998] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14998] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14998] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14998] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14998] open("./bus", O_RDONLY) = 3 [pid 14998] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14998] exit_group(0) = ? [pid 14998] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14998, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 14999 attached , child_tidptr=0x5555575235d0) = 14999 [pid 14999] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 14999] setpgid(0, 0) = 0 [pid 14999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 14999] write(3, "1000", 4) = 4 [pid 14999] close(3) = 0 [pid 14999] memfd_create("syzkaller", 0) = 3 [pid 14999] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 14999] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 14999] munmap(0x7f4bb7e55000, 32768) = 0 [pid 14999] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 14999] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14999] ioctl(4, LOOP_CLR_FD) = 0 [pid 14999] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 14999] close(4) = 0 [pid 14999] close(3) = 0 [pid 14999] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 14999] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 14999] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 14999] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 14999] open("./bus", O_RDONLY) = 3 [pid 14999] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 14999] exit_group(0) = ? [pid 14999] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14999, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15000 ./strace-static-x86_64: Process 15000 attached [pid 15000] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15000] setpgid(0, 0) = 0 [pid 15000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15000] write(3, "1000", 4) = 4 [pid 15000] close(3) = 0 [pid 15000] memfd_create("syzkaller", 0) = 3 [pid 15000] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15000] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15000] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15000] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15000] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15000] ioctl(4, LOOP_CLR_FD) = 0 [pid 15000] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15000] close(4) = 0 [pid 15000] close(3) = 0 [pid 15000] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15000] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15000] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15000] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15000] open("./bus", O_RDONLY) = 3 [pid 15000] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15000] exit_group(0) = ? [pid 15000] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15000, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15001 attached , child_tidptr=0x5555575235d0) = 15001 [pid 15001] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15001] setpgid(0, 0) = 0 [pid 15001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15001] write(3, "1000", 4) = 4 [pid 15001] close(3) = 0 [pid 15001] memfd_create("syzkaller", 0) = 3 [pid 15001] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15001] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15001] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15001] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15001] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15001] ioctl(4, LOOP_CLR_FD) = 0 [pid 15001] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15001] close(4) = 0 [pid 15001] close(3) = 0 [pid 15001] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15001] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15001] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15001] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15001] open("./bus", O_RDONLY) = 3 [pid 15001] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15001] exit_group(0) = ? [pid 15001] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15001, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15002 attached , child_tidptr=0x5555575235d0) = 15002 [pid 15002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15002] setpgid(0, 0) = 0 [pid 15002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15002] write(3, "1000", 4) = 4 [pid 15002] close(3) = 0 [pid 15002] memfd_create("syzkaller", 0) = 3 [pid 15002] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15002] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15002] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15002] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15002] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15002] ioctl(4, LOOP_CLR_FD) = 0 [pid 15002] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15002] close(4) = 0 [pid 15002] close(3) = 0 [pid 15002] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15002] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15002] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15002] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15002] open("./bus", O_RDONLY) = 3 [pid 15002] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15002] exit_group(0) = ? [pid 15002] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15002, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15003 ./strace-static-x86_64: Process 15003 attached [pid 15003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15003] setpgid(0, 0) = 0 [pid 15003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15003] write(3, "1000", 4) = 4 [pid 15003] close(3) = 0 [pid 15003] memfd_create("syzkaller", 0) = 3 [pid 15003] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15003] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15003] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15003] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15003] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15003] ioctl(4, LOOP_CLR_FD) = 0 [pid 15003] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15003] close(4) = 0 [pid 15003] close(3) = 0 [pid 15003] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15003] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15003] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15003] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15003] open("./bus", O_RDONLY) = 3 [pid 15003] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15003] exit_group(0) = ? [pid 15003] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15003, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15004 ./strace-static-x86_64: Process 15004 attached [pid 15004] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15004] setpgid(0, 0) = 0 [pid 15004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15004] write(3, "1000", 4) = 4 [pid 15004] close(3) = 0 [pid 15004] memfd_create("syzkaller", 0) = 3 [pid 15004] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15004] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15004] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15004] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15004] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15004] ioctl(4, LOOP_CLR_FD) = 0 [pid 15004] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15004] close(4) = 0 [pid 15004] close(3) = 0 [pid 15004] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15004] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15004] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15004] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15004] open("./bus", O_RDONLY) = 3 [pid 15004] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15004] exit_group(0) = ? [pid 15004] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15004, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15005 attached , child_tidptr=0x5555575235d0) = 15005 [pid 15005] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15005] setpgid(0, 0) = 0 [pid 15005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15005] write(3, "1000", 4) = 4 [pid 15005] close(3) = 0 [pid 15005] memfd_create("syzkaller", 0) = 3 [pid 15005] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15005] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15005] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15005] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15005] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15005] ioctl(4, LOOP_CLR_FD) = 0 [pid 15005] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15005] close(4) = 0 [pid 15005] close(3) = 0 [pid 15005] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15005] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15005] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15005] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15005] open("./bus", O_RDONLY) = 3 [pid 15005] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15005] exit_group(0) = ? [pid 15005] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15005, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15006 attached , child_tidptr=0x5555575235d0) = 15006 [pid 15006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15006] setpgid(0, 0) = 0 [pid 15006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15006] write(3, "1000", 4) = 4 [pid 15006] close(3) = 0 [pid 15006] memfd_create("syzkaller", 0) = 3 [pid 15006] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15006] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15006] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15006] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15006] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15006] ioctl(4, LOOP_CLR_FD) = 0 [pid 15006] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15006] close(4) = 0 [pid 15006] close(3) = 0 [pid 15006] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15006] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15006] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15006] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15006] open("./bus", O_RDONLY) = 3 [pid 15006] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15006] exit_group(0) = ? [pid 15006] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15006, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15007 attached , child_tidptr=0x5555575235d0) = 15007 [pid 15007] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15007] setpgid(0, 0) = 0 [pid 15007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15007] write(3, "1000", 4) = 4 [pid 15007] close(3) = 0 [pid 15007] memfd_create("syzkaller", 0) = 3 [pid 15007] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15007] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15007] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15007] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15007] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15007] ioctl(4, LOOP_CLR_FD) = 0 [pid 15007] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15007] close(4) = 0 [pid 15007] close(3) = 0 [pid 15007] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15007] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15007] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15007] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15007] open("./bus", O_RDONLY) = 3 [pid 15007] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15007] exit_group(0) = ? [pid 15007] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15007, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15008 ./strace-static-x86_64: Process 15008 attached [pid 15008] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15008] setpgid(0, 0) = 0 [pid 15008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15008] write(3, "1000", 4) = 4 [pid 15008] close(3) = 0 [pid 15008] memfd_create("syzkaller", 0) = 3 [pid 15008] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15008] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15008] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15008] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15008] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15008] ioctl(4, LOOP_CLR_FD) = 0 [pid 15008] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15008] close(4) = 0 [pid 15008] close(3) = 0 [pid 15008] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15008] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15008] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15008] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15008] open("./bus", O_RDONLY) = 3 [pid 15008] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15008] exit_group(0) = ? [pid 15008] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15008, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15009 attached , child_tidptr=0x5555575235d0) = 15009 [pid 15009] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15009] setpgid(0, 0) = 0 [pid 15009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15009] write(3, "1000", 4) = 4 [pid 15009] close(3) = 0 [pid 15009] memfd_create("syzkaller", 0) = 3 [pid 15009] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15009] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15009] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15009] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15009] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15009] ioctl(4, LOOP_CLR_FD) = 0 [pid 15009] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15009] close(4) = 0 [pid 15009] close(3) = 0 [pid 15009] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15009] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15009] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15009] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15009] open("./bus", O_RDONLY) = 3 [pid 15009] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15009] exit_group(0) = ? [pid 15009] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15009, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15010 ./strace-static-x86_64: Process 15010 attached [pid 15010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15010] setpgid(0, 0) = 0 [pid 15010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15010] write(3, "1000", 4) = 4 [pid 15010] close(3) = 0 [pid 15010] memfd_create("syzkaller", 0) = 3 [pid 15010] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15010] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15010] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15010] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15010] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15010] ioctl(4, LOOP_CLR_FD) = 0 [pid 15010] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15010] close(4) = 0 [pid 15010] close(3) = 0 [pid 15010] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15010] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15010] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15010] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15010] open("./bus", O_RDONLY) = 3 [pid 15010] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15010] exit_group(0) = ? [pid 15010] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15010, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15011 attached [pid 15011] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15011] setpgid(0, 0) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x5555575235d0) = 15011 [pid 15011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15011] write(3, "1000", 4) = 4 [pid 15011] close(3) = 0 [pid 15011] memfd_create("syzkaller", 0) = 3 [pid 15011] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15011] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15011] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15011] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15011] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15011] ioctl(4, LOOP_CLR_FD) = 0 [pid 15011] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15011] close(4) = 0 [pid 15011] close(3) = 0 [pid 15011] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15011] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15011] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15011] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15011] open("./bus", O_RDONLY) = 3 [pid 15011] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15011] exit_group(0) = ? [pid 15011] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15011, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15012 ./strace-static-x86_64: Process 15012 attached [pid 15012] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15012] setpgid(0, 0) = 0 [pid 15012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15012] write(3, "1000", 4) = 4 [pid 15012] close(3) = 0 [pid 15012] memfd_create("syzkaller", 0) = 3 [pid 15012] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15012] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15012] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15012] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15012] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15012] ioctl(4, LOOP_CLR_FD) = 0 [pid 15012] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15012] close(4) = 0 [pid 15012] close(3) = 0 [pid 15012] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15012] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15012] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15012] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15012] open("./bus", O_RDONLY) = 3 [pid 15012] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15012] exit_group(0) = ? [pid 15012] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15012, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15013 ./strace-static-x86_64: Process 15013 attached [pid 15013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15013] setpgid(0, 0) = 0 [pid 15013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15013] write(3, "1000", 4) = 4 [pid 15013] close(3) = 0 [pid 15013] memfd_create("syzkaller", 0) = 3 [pid 15013] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15013] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15013] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15013] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15013] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15013] ioctl(4, LOOP_CLR_FD) = 0 [pid 15013] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15013] close(4) = 0 [pid 15013] close(3) = 0 [pid 15013] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15013] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15013] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15013] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15013] open("./bus", O_RDONLY) = 3 [pid 15013] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15013] exit_group(0) = ? [pid 15013] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15013, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15014 ./strace-static-x86_64: Process 15014 attached [pid 15014] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15014] setpgid(0, 0) = 0 [pid 15014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15014] write(3, "1000", 4) = 4 [pid 15014] close(3) = 0 [pid 15014] memfd_create("syzkaller", 0) = 3 [pid 15014] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15014] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15014] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15014] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15014] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15014] ioctl(4, LOOP_CLR_FD) = 0 [pid 15014] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15014] close(4) = 0 [pid 15014] close(3) = 0 [pid 15014] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15014] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15014] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15014] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15014] open("./bus", O_RDONLY) = 3 [pid 15014] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15014] exit_group(0) = ? [pid 15014] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15014, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15015 ./strace-static-x86_64: Process 15015 attached [pid 15015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15015] setpgid(0, 0) = 0 [pid 15015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15015] write(3, "1000", 4) = 4 [pid 15015] close(3) = 0 [pid 15015] memfd_create("syzkaller", 0) = 3 [pid 15015] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15015] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15015] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15015] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15015] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15015] ioctl(4, LOOP_CLR_FD) = 0 [pid 15015] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15015] close(4) = 0 [pid 15015] close(3) = 0 [pid 15015] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15015] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15015] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15015] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15015] open("./bus", O_RDONLY) = 3 [pid 15015] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15015] exit_group(0) = ? [pid 15015] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15015, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15016 ./strace-static-x86_64: Process 15016 attached [pid 15016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15016] setpgid(0, 0) = 0 [pid 15016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15016] write(3, "1000", 4) = 4 [pid 15016] close(3) = 0 [pid 15016] memfd_create("syzkaller", 0) = 3 [pid 15016] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15016] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15016] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15016] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15016] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15016] ioctl(4, LOOP_CLR_FD) = 0 [pid 15016] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15016] close(4) = 0 [pid 15016] close(3) = 0 [pid 15016] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15016] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15016] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15016] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15016] open("./bus", O_RDONLY) = 3 [pid 15016] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15016] exit_group(0) = ? [pid 15016] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15016, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15017 ./strace-static-x86_64: Process 15017 attached [pid 15017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15017] setpgid(0, 0) = 0 [pid 15017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15017] write(3, "1000", 4) = 4 [pid 15017] close(3) = 0 [pid 15017] memfd_create("syzkaller", 0) = 3 [pid 15017] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15017] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15017] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15017] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15017] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15017] ioctl(4, LOOP_CLR_FD) = 0 [pid 15017] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15017] close(4) = 0 [pid 15017] close(3) = 0 [pid 15017] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15017] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15017] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15017] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15017] open("./bus", O_RDONLY) = 3 [pid 15017] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15017] exit_group(0) = ? [pid 15017] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15017, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15018 ./strace-static-x86_64: Process 15018 attached [pid 15018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15018] setpgid(0, 0) = 0 [pid 15018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15018] write(3, "1000", 4) = 4 [pid 15018] close(3) = 0 [pid 15018] memfd_create("syzkaller", 0) = 3 [pid 15018] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15018] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15018] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15018] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15018] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15018] ioctl(4, LOOP_CLR_FD) = 0 [pid 15018] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15018] close(4) = 0 [pid 15018] close(3) = 0 [pid 15018] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15018] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15018] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15018] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15018] open("./bus", O_RDONLY) = 3 [pid 15018] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15018] exit_group(0) = ? [pid 15018] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15018, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15019 attached , child_tidptr=0x5555575235d0) = 15019 [pid 15019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15019] setpgid(0, 0) = 0 [pid 15019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15019] write(3, "1000", 4) = 4 [pid 15019] close(3) = 0 [pid 15019] memfd_create("syzkaller", 0) = 3 [pid 15019] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15019] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15019] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15019] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15019] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15019] ioctl(4, LOOP_CLR_FD) = 0 [pid 15019] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15019] close(4) = 0 [pid 15019] close(3) = 0 [pid 15019] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15019] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15019] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15019] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15019] open("./bus", O_RDONLY) = 3 [pid 15019] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15019] exit_group(0) = ? [pid 15019] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15019, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15020 attached , child_tidptr=0x5555575235d0) = 15020 [pid 15020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15020] setpgid(0, 0) = 0 [pid 15020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15020] write(3, "1000", 4) = 4 [pid 15020] close(3) = 0 [pid 15020] memfd_create("syzkaller", 0) = 3 [pid 15020] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15020] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15020] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15020] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15020] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15020] ioctl(4, LOOP_CLR_FD) = 0 [pid 15020] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15020] close(4) = 0 [pid 15020] close(3) = 0 [pid 15020] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15020] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15020] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15020] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15020] open("./bus", O_RDONLY) = 3 [pid 15020] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15020] exit_group(0) = ? [pid 15020] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15020, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15021 attached , child_tidptr=0x5555575235d0) = 15021 [pid 15021] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15021] setpgid(0, 0) = 0 [pid 15021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15021] write(3, "1000", 4) = 4 [pid 15021] close(3) = 0 [pid 15021] memfd_create("syzkaller", 0) = 3 [pid 15021] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15021] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15021] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15021] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15021] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15021] ioctl(4, LOOP_CLR_FD) = 0 [pid 15021] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15021] close(4) = 0 [pid 15021] close(3) = 0 [pid 15021] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15021] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15021] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15021] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15021] open("./bus", O_RDONLY) = 3 [pid 15021] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15021] exit_group(0) = ? [pid 15021] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15021, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15022 attached , child_tidptr=0x5555575235d0) = 15022 [pid 15022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15022] setpgid(0, 0) = 0 [pid 15022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15022] write(3, "1000", 4) = 4 [pid 15022] close(3) = 0 [pid 15022] memfd_create("syzkaller", 0) = 3 [pid 15022] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15022] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15022] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15022] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15022] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15022] ioctl(4, LOOP_CLR_FD) = 0 [pid 15022] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15022] close(4) = 0 [pid 15022] close(3) = 0 [pid 15022] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15022] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15022] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15022] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15022] open("./bus", O_RDONLY) = 3 [pid 15022] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15022] exit_group(0) = ? [pid 15022] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15022, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15023 ./strace-static-x86_64: Process 15023 attached [pid 15023] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15023] setpgid(0, 0) = 0 [pid 15023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15023] write(3, "1000", 4) = 4 [pid 15023] close(3) = 0 [pid 15023] memfd_create("syzkaller", 0) = 3 [pid 15023] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15023] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15023] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15023] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15023] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15023] ioctl(4, LOOP_CLR_FD) = 0 [pid 15023] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15023] close(4) = 0 [pid 15023] close(3) = 0 [pid 15023] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15023] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15023] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15023] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15023] open("./bus", O_RDONLY) = 3 [pid 15023] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15023] exit_group(0) = ? [pid 15023] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15023, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15024 ./strace-static-x86_64: Process 15024 attached [pid 15024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15024] setpgid(0, 0) = 0 [pid 15024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15024] write(3, "1000", 4) = 4 [pid 15024] close(3) = 0 [pid 15024] memfd_create("syzkaller", 0) = 3 [pid 15024] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15024] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15024] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15024] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15024] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15024] ioctl(4, LOOP_CLR_FD) = 0 [pid 15024] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15024] close(4) = 0 [pid 15024] close(3) = 0 [pid 15024] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15024] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15024] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15024] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15024] open("./bus", O_RDONLY) = 3 [pid 15024] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15024] exit_group(0) = ? [pid 15024] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15024, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15025 attached , child_tidptr=0x5555575235d0) = 15025 [pid 15025] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15025] setpgid(0, 0) = 0 [pid 15025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15025] write(3, "1000", 4) = 4 [pid 15025] close(3) = 0 [pid 15025] memfd_create("syzkaller", 0) = 3 [pid 15025] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15025] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15025] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15025] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15025] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15025] ioctl(4, LOOP_CLR_FD) = 0 [pid 15025] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15025] close(4) = 0 [pid 15025] close(3) = 0 [pid 15025] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15025] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15025] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15025] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15025] open("./bus", O_RDONLY) = 3 [pid 15025] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15025] exit_group(0) = ? [pid 15025] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15025, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15026 ./strace-static-x86_64: Process 15026 attached [pid 15026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15026] setpgid(0, 0) = 0 [pid 15026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15026] write(3, "1000", 4) = 4 [pid 15026] close(3) = 0 [pid 15026] memfd_create("syzkaller", 0) = 3 [pid 15026] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15026] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15026] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15026] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15026] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15026] ioctl(4, LOOP_CLR_FD) = 0 [pid 15026] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15026] close(4) = 0 [pid 15026] close(3) = 0 [pid 15026] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15026] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15026] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15026] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15026] open("./bus", O_RDONLY) = 3 [pid 15026] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15026] exit_group(0) = ? [pid 15026] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15026, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15027 ./strace-static-x86_64: Process 15027 attached [pid 15027] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15027] setpgid(0, 0) = 0 [pid 15027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15027] write(3, "1000", 4) = 4 [pid 15027] close(3) = 0 [pid 15027] memfd_create("syzkaller", 0) = 3 [pid 15027] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15027] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15027] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15027] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15027] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15027] ioctl(4, LOOP_CLR_FD) = 0 [pid 15027] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15027] close(4) = 0 [pid 15027] close(3) = 0 [pid 15027] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15027] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15027] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15027] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15027] open("./bus", O_RDONLY) = 3 [pid 15027] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15027] exit_group(0) = ? [pid 15027] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15027, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15028 attached , child_tidptr=0x5555575235d0) = 15028 [pid 15028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15028] setpgid(0, 0) = 0 [pid 15028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15028] write(3, "1000", 4) = 4 [pid 15028] close(3) = 0 [pid 15028] memfd_create("syzkaller", 0) = 3 [pid 15028] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15028] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15028] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15028] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15028] ioctl(4, LOOP_CLR_FD) = 0 [pid 15028] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15028] close(4) = 0 [pid 15028] close(3) = 0 [pid 15028] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15028] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15028] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15028] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15028] open("./bus", O_RDONLY) = 3 [pid 15028] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15028] exit_group(0) = ? [pid 15028] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15028, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15029 ./strace-static-x86_64: Process 15029 attached [pid 15029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15029] setpgid(0, 0) = 0 [pid 15029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15029] write(3, "1000", 4) = 4 [pid 15029] close(3) = 0 [pid 15029] memfd_create("syzkaller", 0) = 3 [pid 15029] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15029] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15029] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15029] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15029] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15029] ioctl(4, LOOP_CLR_FD) = 0 [pid 15029] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15029] close(4) = 0 [pid 15029] close(3) = 0 [pid 15029] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15029] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15029] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15029] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15029] open("./bus", O_RDONLY) = 3 [pid 15029] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15029] exit_group(0) = ? [pid 15029] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15029, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15030 ./strace-static-x86_64: Process 15030 attached [pid 15030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15030] setpgid(0, 0) = 0 [pid 15030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15030] write(3, "1000", 4) = 4 [pid 15030] close(3) = 0 [pid 15030] memfd_create("syzkaller", 0) = 3 [pid 15030] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15030] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15030] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15030] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15030] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15030] ioctl(4, LOOP_CLR_FD) = 0 [pid 15030] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15030] close(4) = 0 [pid 15030] close(3) = 0 [pid 15030] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15030] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15030] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15030] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15030] open("./bus", O_RDONLY) = 3 [pid 15030] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15030] exit_group(0) = ? [pid 15030] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15030, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15031 ./strace-static-x86_64: Process 15031 attached [pid 15031] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15031] setpgid(0, 0) = 0 [pid 15031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15031] write(3, "1000", 4) = 4 [pid 15031] close(3) = 0 [pid 15031] memfd_create("syzkaller", 0) = 3 [pid 15031] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15031] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15031] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15031] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15031] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15031] ioctl(4, LOOP_CLR_FD) = 0 [pid 15031] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15031] close(4) = 0 [pid 15031] close(3) = 0 [pid 15031] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15031] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15031] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15031] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15031] open("./bus", O_RDONLY) = 3 [pid 15031] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15031] exit_group(0) = ? [pid 15031] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15031, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15032 attached , child_tidptr=0x5555575235d0) = 15032 [pid 15032] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15032] setpgid(0, 0) = 0 [pid 15032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15032] write(3, "1000", 4) = 4 [pid 15032] close(3) = 0 [pid 15032] memfd_create("syzkaller", 0) = 3 [pid 15032] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15032] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15032] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15032] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15032] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15032] ioctl(4, LOOP_CLR_FD) = 0 [pid 15032] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15032] close(4) = 0 [pid 15032] close(3) = 0 [pid 15032] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15032] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15032] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15032] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15032] open("./bus", O_RDONLY) = 3 [pid 15032] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15032] exit_group(0) = ? [pid 15032] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15032, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15033 ./strace-static-x86_64: Process 15033 attached [pid 15033] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15033] setpgid(0, 0) = 0 [pid 15033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15033] write(3, "1000", 4) = 4 [pid 15033] close(3) = 0 [pid 15033] memfd_create("syzkaller", 0) = 3 [pid 15033] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15033] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15033] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15033] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15033] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15033] ioctl(4, LOOP_CLR_FD) = 0 [pid 15033] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15033] close(4) = 0 [pid 15033] close(3) = 0 [pid 15033] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15033] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15033] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15033] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15033] open("./bus", O_RDONLY) = 3 [pid 15033] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15033] exit_group(0) = ? [pid 15033] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15033, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15034 attached , child_tidptr=0x5555575235d0) = 15034 [pid 15034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15034] setpgid(0, 0) = 0 [pid 15034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15034] write(3, "1000", 4) = 4 [pid 15034] close(3) = 0 [pid 15034] memfd_create("syzkaller", 0) = 3 [pid 15034] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15034] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15034] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15034] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15034] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15034] ioctl(4, LOOP_CLR_FD) = 0 [pid 15034] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15034] close(4) = 0 [pid 15034] close(3) = 0 [pid 15034] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15034] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15034] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15034] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15034] open("./bus", O_RDONLY) = 3 [pid 15034] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15034] exit_group(0) = ? [pid 15034] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15034, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15035 ./strace-static-x86_64: Process 15035 attached [pid 15035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15035] setpgid(0, 0) = 0 [pid 15035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15035] write(3, "1000", 4) = 4 [pid 15035] close(3) = 0 [pid 15035] memfd_create("syzkaller", 0) = 3 [pid 15035] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15035] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15035] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15035] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15035] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15035] ioctl(4, LOOP_CLR_FD) = 0 [pid 15035] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15035] close(4) = 0 [pid 15035] close(3) = 0 [pid 15035] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15035] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15035] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15035] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15035] open("./bus", O_RDONLY) = 3 [pid 15035] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15035] exit_group(0) = ? [pid 15035] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15035, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15036 attached , child_tidptr=0x5555575235d0) = 15036 [pid 15036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15036] setpgid(0, 0) = 0 [pid 15036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15036] write(3, "1000", 4) = 4 [pid 15036] close(3) = 0 [pid 15036] memfd_create("syzkaller", 0) = 3 [pid 15036] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15036] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15036] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15036] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15036] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15036] ioctl(4, LOOP_CLR_FD) = 0 [pid 15036] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15036] close(4) = 0 [pid 15036] close(3) = 0 [pid 15036] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15036] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15036] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15036] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15036] open("./bus", O_RDONLY) = 3 [pid 15036] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15036] exit_group(0) = ? [pid 15036] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15036, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15037 attached , child_tidptr=0x5555575235d0) = 15037 [pid 15037] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15037] setpgid(0, 0) = 0 [pid 15037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15037] write(3, "1000", 4) = 4 [pid 15037] close(3) = 0 [pid 15037] memfd_create("syzkaller", 0) = 3 [pid 15037] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15037] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15037] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15037] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15037] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15037] ioctl(4, LOOP_CLR_FD) = 0 [pid 15037] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15037] close(4) = 0 [pid 15037] close(3) = 0 [pid 15037] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15037] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15037] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15037] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15037] open("./bus", O_RDONLY) = 3 [pid 15037] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15037] exit_group(0) = ? [pid 15037] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15037, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15038 ./strace-static-x86_64: Process 15038 attached [pid 15038] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15038] setpgid(0, 0) = 0 [pid 15038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15038] write(3, "1000", 4) = 4 [pid 15038] close(3) = 0 [pid 15038] memfd_create("syzkaller", 0) = 3 [pid 15038] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15038] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15038] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15038] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15038] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15038] ioctl(4, LOOP_CLR_FD) = 0 [pid 15038] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15038] close(4) = 0 [pid 15038] close(3) = 0 [pid 15038] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15038] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15038] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15038] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15038] open("./bus", O_RDONLY) = 3 [pid 15038] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15038] exit_group(0) = ? [pid 15038] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15038, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15039 ./strace-static-x86_64: Process 15039 attached [pid 15039] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15039] setpgid(0, 0) = 0 [pid 15039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15039] write(3, "1000", 4) = 4 [pid 15039] close(3) = 0 [pid 15039] memfd_create("syzkaller", 0) = 3 [pid 15039] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15039] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15039] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15039] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15039] ioctl(4, LOOP_CLR_FD) = 0 [pid 15039] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15039] close(4) = 0 [pid 15039] close(3) = 0 [pid 15039] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15039] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15039] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15039] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15039] open("./bus", O_RDONLY) = 3 [pid 15039] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15039] exit_group(0) = ? [pid 15039] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15039, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15040 ./strace-static-x86_64: Process 15040 attached [pid 15040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15040] setpgid(0, 0) = 0 [pid 15040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15040] write(3, "1000", 4) = 4 [pid 15040] close(3) = 0 [pid 15040] memfd_create("syzkaller", 0) = 3 [pid 15040] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15040] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15040] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15040] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15040] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15040] ioctl(4, LOOP_CLR_FD) = 0 [pid 15040] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15040] close(4) = 0 [pid 15040] close(3) = 0 [pid 15040] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15040] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15040] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15040] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15040] open("./bus", O_RDONLY) = 3 [pid 15040] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15040] exit_group(0) = ? [pid 15040] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15040, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15041 ./strace-static-x86_64: Process 15041 attached [pid 15041] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15041] setpgid(0, 0) = 0 [pid 15041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15041] write(3, "1000", 4) = 4 [pid 15041] close(3) = 0 [pid 15041] memfd_create("syzkaller", 0) = 3 [pid 15041] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15041] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15041] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15041] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15041] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15041] ioctl(4, LOOP_CLR_FD) = 0 [pid 15041] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15041] close(4) = 0 [pid 15041] close(3) = 0 [pid 15041] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15041] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15041] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15041] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15041] open("./bus", O_RDONLY) = 3 [pid 15041] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15041] exit_group(0) = ? [pid 15041] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15041, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15042 ./strace-static-x86_64: Process 15042 attached [pid 15042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15042] setpgid(0, 0) = 0 [pid 15042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15042] write(3, "1000", 4) = 4 [pid 15042] close(3) = 0 [pid 15042] memfd_create("syzkaller", 0) = 3 [pid 15042] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15042] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15042] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15042] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15042] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15042] ioctl(4, LOOP_CLR_FD) = 0 [pid 15042] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15042] close(4) = 0 [pid 15042] close(3) = 0 [pid 15042] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15042] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15042] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15042] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15042] open("./bus", O_RDONLY) = 3 [pid 15042] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15042] exit_group(0) = ? [pid 15042] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15042, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15043 attached , child_tidptr=0x5555575235d0) = 15043 [pid 15043] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15043] setpgid(0, 0) = 0 [pid 15043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15043] write(3, "1000", 4) = 4 [pid 15043] close(3) = 0 [pid 15043] memfd_create("syzkaller", 0) = 3 [pid 15043] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15043] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15043] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15043] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15043] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15043] ioctl(4, LOOP_CLR_FD) = 0 [pid 15043] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15043] close(4) = 0 [pid 15043] close(3) = 0 [pid 15043] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15043] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15043] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15043] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15043] open("./bus", O_RDONLY) = 3 [pid 15043] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15043] exit_group(0) = ? [pid 15043] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15043, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15044 attached , child_tidptr=0x5555575235d0) = 15044 [pid 15044] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15044] setpgid(0, 0) = 0 [pid 15044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15044] write(3, "1000", 4) = 4 [pid 15044] close(3) = 0 [pid 15044] memfd_create("syzkaller", 0) = 3 [pid 15044] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15044] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15044] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15044] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15044] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15044] ioctl(4, LOOP_CLR_FD) = 0 [pid 15044] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15044] close(4) = 0 [pid 15044] close(3) = 0 [pid 15044] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15044] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15044] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15044] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15044] open("./bus", O_RDONLY) = 3 [pid 15044] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15044] exit_group(0) = ? [pid 15044] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15044, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15045 ./strace-static-x86_64: Process 15045 attached [pid 15045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15045] setpgid(0, 0) = 0 [pid 15045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15045] write(3, "1000", 4) = 4 [pid 15045] close(3) = 0 [pid 15045] memfd_create("syzkaller", 0) = 3 [pid 15045] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15045] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15045] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15045] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15045] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15045] ioctl(4, LOOP_CLR_FD) = 0 [pid 15045] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15045] close(4) = 0 [pid 15045] close(3) = 0 [pid 15045] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15045] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15045] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15045] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15045] open("./bus", O_RDONLY) = 3 [pid 15045] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15045] exit_group(0) = ? [pid 15045] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15045, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15046 attached , child_tidptr=0x5555575235d0) = 15046 [pid 15046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15046] setpgid(0, 0) = 0 [pid 15046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15046] write(3, "1000", 4) = 4 [pid 15046] close(3) = 0 [pid 15046] memfd_create("syzkaller", 0) = 3 [pid 15046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15046] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15046] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15046] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15046] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15046] ioctl(4, LOOP_CLR_FD) = 0 [pid 15046] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15046] close(4) = 0 [pid 15046] close(3) = 0 [pid 15046] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15046] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15046] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15046] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15046] open("./bus", O_RDONLY) = 3 [pid 15046] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15046] exit_group(0) = ? [pid 15046] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15046, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15047 attached , child_tidptr=0x5555575235d0) = 15047 [pid 15047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15047] setpgid(0, 0) = 0 [pid 15047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15047] write(3, "1000", 4) = 4 [pid 15047] close(3) = 0 [pid 15047] memfd_create("syzkaller", 0) = 3 [pid 15047] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15047] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15047] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15047] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15047] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15047] ioctl(4, LOOP_CLR_FD) = 0 [pid 15047] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15047] close(4) = 0 [pid 15047] close(3) = 0 [pid 15047] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15047] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15047] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15047] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15047] open("./bus", O_RDONLY) = 3 [pid 15047] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15047] exit_group(0) = ? [pid 15047] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15047, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15048 attached , child_tidptr=0x5555575235d0) = 15048 [pid 15048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15048] setpgid(0, 0) = 0 [pid 15048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15048] write(3, "1000", 4) = 4 [pid 15048] close(3) = 0 [pid 15048] memfd_create("syzkaller", 0) = 3 [pid 15048] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15048] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15048] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15048] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15048] ioctl(4, LOOP_CLR_FD) = 0 [pid 15048] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15048] close(4) = 0 [pid 15048] close(3) = 0 [pid 15048] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15048] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15048] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15048] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15048] open("./bus", O_RDONLY) = 3 [pid 15048] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15048] exit_group(0) = ? [pid 15048] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15048, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15049 attached , child_tidptr=0x5555575235d0) = 15049 [pid 15049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15049] setpgid(0, 0) = 0 [pid 15049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15049] write(3, "1000", 4) = 4 [pid 15049] close(3) = 0 [pid 15049] memfd_create("syzkaller", 0) = 3 [pid 15049] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15049] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15049] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15049] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15049] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15049] ioctl(4, LOOP_CLR_FD) = 0 [pid 15049] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15049] close(4) = 0 [pid 15049] close(3) = 0 [pid 15049] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15049] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15049] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15049] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15049] open("./bus", O_RDONLY) = 3 [pid 15049] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15049] exit_group(0) = ? [pid 15049] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15049, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15050 ./strace-static-x86_64: Process 15050 attached [pid 15050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15050] setpgid(0, 0) = 0 [pid 15050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15050] write(3, "1000", 4) = 4 [pid 15050] close(3) = 0 [pid 15050] memfd_create("syzkaller", 0) = 3 [pid 15050] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15050] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15050] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15050] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15050] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15050] ioctl(4, LOOP_CLR_FD) = 0 [pid 15050] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15050] close(4) = 0 [pid 15050] close(3) = 0 [pid 15050] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15050] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15050] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15050] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15050] open("./bus", O_RDONLY) = 3 [pid 15050] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15050] exit_group(0) = ? [pid 15050] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15050, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15051 ./strace-static-x86_64: Process 15051 attached [pid 15051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15051] setpgid(0, 0) = 0 [pid 15051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15051] write(3, "1000", 4) = 4 [pid 15051] close(3) = 0 [pid 15051] memfd_create("syzkaller", 0) = 3 [pid 15051] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15051] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15051] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15051] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15051] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15051] ioctl(4, LOOP_CLR_FD) = 0 [pid 15051] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15051] close(4) = 0 [pid 15051] close(3) = 0 [pid 15051] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15051] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15051] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15051] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15051] open("./bus", O_RDONLY) = 3 [pid 15051] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15051] exit_group(0) = ? [pid 15051] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15051, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15052 ./strace-static-x86_64: Process 15052 attached [pid 15052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15052] setpgid(0, 0) = 0 [pid 15052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15052] write(3, "1000", 4) = 4 [pid 15052] close(3) = 0 [pid 15052] memfd_create("syzkaller", 0) = 3 [pid 15052] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15052] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15052] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15052] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15052] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15052] ioctl(4, LOOP_CLR_FD) = 0 [pid 15052] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15052] close(4) = 0 [pid 15052] close(3) = 0 [pid 15052] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15052] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15052] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15052] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15052] open("./bus", O_RDONLY) = 3 [pid 15052] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15052] exit_group(0) = ? [pid 15052] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15052, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15053 ./strace-static-x86_64: Process 15053 attached [pid 15053] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15053] setpgid(0, 0) = 0 [pid 15053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15053] write(3, "1000", 4) = 4 [pid 15053] close(3) = 0 [pid 15053] memfd_create("syzkaller", 0) = 3 [pid 15053] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15053] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15053] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15053] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15053] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15053] ioctl(4, LOOP_CLR_FD) = 0 [pid 15053] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15053] close(4) = 0 [pid 15053] close(3) = 0 [pid 15053] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15053] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15053] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15053] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15053] open("./bus", O_RDONLY) = 3 [pid 15053] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15053] exit_group(0) = ? [pid 15053] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15053, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15054 ./strace-static-x86_64: Process 15054 attached [pid 15054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15054] setpgid(0, 0) = 0 [pid 15054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15054] write(3, "1000", 4) = 4 [pid 15054] close(3) = 0 [pid 15054] memfd_create("syzkaller", 0) = 3 [pid 15054] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15054] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15054] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15054] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15054] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15054] ioctl(4, LOOP_CLR_FD) = 0 [pid 15054] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15054] close(4) = 0 [pid 15054] close(3) = 0 [pid 15054] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15054] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15054] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15054] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15054] open("./bus", O_RDONLY) = 3 [pid 15054] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15054] exit_group(0) = ? [pid 15054] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15054, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15055 ./strace-static-x86_64: Process 15055 attached [pid 15055] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15055] setpgid(0, 0) = 0 [pid 15055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15055] write(3, "1000", 4) = 4 [pid 15055] close(3) = 0 [pid 15055] memfd_create("syzkaller", 0) = 3 [pid 15055] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15055] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15055] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15055] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15055] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15055] ioctl(4, LOOP_CLR_FD) = 0 [pid 15055] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15055] close(4) = 0 [pid 15055] close(3) = 0 [pid 15055] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15055] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15055] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15055] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15055] open("./bus", O_RDONLY) = 3 [pid 15055] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15055] exit_group(0) = ? [pid 15055] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15055, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15056 ./strace-static-x86_64: Process 15056 attached [pid 15056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15056] setpgid(0, 0) = 0 [pid 15056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15056] write(3, "1000", 4) = 4 [pid 15056] close(3) = 0 [pid 15056] memfd_create("syzkaller", 0) = 3 [pid 15056] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15056] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15056] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15056] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15056] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15056] ioctl(4, LOOP_CLR_FD) = 0 [pid 15056] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15056] close(4) = 0 [pid 15056] close(3) = 0 [pid 15056] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15056] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15056] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15056] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15056] open("./bus", O_RDONLY) = 3 [pid 15056] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15056] exit_group(0) = ? [pid 15056] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15056, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15057 ./strace-static-x86_64: Process 15057 attached [pid 15057] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15057] setpgid(0, 0) = 0 [pid 15057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15057] write(3, "1000", 4) = 4 [pid 15057] close(3) = 0 [pid 15057] memfd_create("syzkaller", 0) = 3 [pid 15057] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15057] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15057] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15057] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15057] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15057] ioctl(4, LOOP_CLR_FD) = 0 [pid 15057] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15057] close(4) = 0 [pid 15057] close(3) = 0 [pid 15057] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15057] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15057] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15057] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15057] open("./bus", O_RDONLY) = 3 [pid 15057] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15057] exit_group(0) = ? [pid 15057] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15057, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15058 ./strace-static-x86_64: Process 15058 attached [pid 15058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15058] setpgid(0, 0) = 0 [pid 15058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15058] write(3, "1000", 4) = 4 [pid 15058] close(3) = 0 [pid 15058] memfd_create("syzkaller", 0) = 3 [pid 15058] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15058] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15058] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15058] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15058] ioctl(4, LOOP_CLR_FD) = 0 [pid 15058] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15058] close(4) = 0 [pid 15058] close(3) = 0 [pid 15058] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15058] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15058] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15058] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15058] open("./bus", O_RDONLY) = 3 [pid 15058] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15058] exit_group(0) = ? [pid 15058] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15058, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15059 ./strace-static-x86_64: Process 15059 attached [pid 15059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15059] setpgid(0, 0) = 0 [pid 15059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15059] write(3, "1000", 4) = 4 [pid 15059] close(3) = 0 [pid 15059] memfd_create("syzkaller", 0) = 3 [pid 15059] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15059] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15059] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15059] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15059] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15059] ioctl(4, LOOP_CLR_FD) = 0 [pid 15059] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15059] close(4) = 0 [pid 15059] close(3) = 0 [pid 15059] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15059] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15059] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15059] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15059] open("./bus", O_RDONLY) = 3 [pid 15059] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15059] exit_group(0) = ? [pid 15059] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15059, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15060 attached , child_tidptr=0x5555575235d0) = 15060 [pid 15060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15060] setpgid(0, 0) = 0 [pid 15060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15060] write(3, "1000", 4) = 4 [pid 15060] close(3) = 0 [pid 15060] memfd_create("syzkaller", 0) = 3 [pid 15060] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15060] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15060] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15060] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15060] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15060] ioctl(4, LOOP_CLR_FD) = 0 [pid 15060] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15060] close(4) = 0 [pid 15060] close(3) = 0 [pid 15060] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15060] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15060] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15060] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15060] open("./bus", O_RDONLY) = 3 [pid 15060] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15060] exit_group(0) = ? [pid 15060] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15060, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15061 ./strace-static-x86_64: Process 15061 attached [pid 15061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15061] setpgid(0, 0) = 0 [pid 15061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15061] write(3, "1000", 4) = 4 [pid 15061] close(3) = 0 [pid 15061] memfd_create("syzkaller", 0) = 3 [pid 15061] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15061] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15061] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15061] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15061] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15061] ioctl(4, LOOP_CLR_FD) = 0 [pid 15061] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15061] close(4) = 0 [pid 15061] close(3) = 0 [pid 15061] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15061] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15061] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15061] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15061] open("./bus", O_RDONLY) = 3 [pid 15061] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15061] exit_group(0) = ? [pid 15061] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15061, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15062 ./strace-static-x86_64: Process 15062 attached [pid 15062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15062] setpgid(0, 0) = 0 [pid 15062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15062] write(3, "1000", 4) = 4 [pid 15062] close(3) = 0 [pid 15062] memfd_create("syzkaller", 0) = 3 [pid 15062] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15062] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15062] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15062] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15062] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15062] ioctl(4, LOOP_CLR_FD) = 0 [pid 15062] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15062] close(4) = 0 [pid 15062] close(3) = 0 [pid 15062] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15062] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15062] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15062] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15062] open("./bus", O_RDONLY) = 3 [pid 15062] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15062] exit_group(0) = ? [pid 15062] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15062, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15063 ./strace-static-x86_64: Process 15063 attached [pid 15063] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15063] setpgid(0, 0) = 0 [pid 15063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15063] write(3, "1000", 4) = 4 [pid 15063] close(3) = 0 [pid 15063] memfd_create("syzkaller", 0) = 3 [pid 15063] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15063] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15063] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15063] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15063] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15063] ioctl(4, LOOP_CLR_FD) = 0 [pid 15063] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15063] close(4) = 0 [pid 15063] close(3) = 0 [pid 15063] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15063] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15063] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15063] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15063] open("./bus", O_RDONLY) = 3 [pid 15063] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15063] exit_group(0) = ? [pid 15063] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15063, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15064 attached , child_tidptr=0x5555575235d0) = 15064 [pid 15064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15064] setpgid(0, 0) = 0 [pid 15064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15064] write(3, "1000", 4) = 4 [pid 15064] close(3) = 0 [pid 15064] memfd_create("syzkaller", 0) = 3 [pid 15064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15064] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15064] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15064] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15064] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15064] ioctl(4, LOOP_CLR_FD) = 0 [pid 15064] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15064] close(4) = 0 [pid 15064] close(3) = 0 [pid 15064] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15064] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15064] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15064] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15064] open("./bus", O_RDONLY) = 3 [pid 15064] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15064] exit_group(0) = ? [pid 15064] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15064, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15065 attached , child_tidptr=0x5555575235d0) = 15065 [pid 15065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15065] setpgid(0, 0) = 0 [pid 15065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15065] write(3, "1000", 4) = 4 [pid 15065] close(3) = 0 [pid 15065] memfd_create("syzkaller", 0) = 3 [pid 15065] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15065] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15065] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15065] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15065] ioctl(4, LOOP_CLR_FD) = 0 [pid 15065] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15065] close(4) = 0 [pid 15065] close(3) = 0 [pid 15065] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15065] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15065] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15065] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15065] open("./bus", O_RDONLY) = 3 [pid 15065] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15065] exit_group(0) = ? [pid 15065] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15065, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15066 ./strace-static-x86_64: Process 15066 attached [pid 15066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15066] setpgid(0, 0) = 0 [pid 15066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15066] write(3, "1000", 4) = 4 [pid 15066] close(3) = 0 [pid 15066] memfd_create("syzkaller", 0) = 3 [pid 15066] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15066] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15066] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15066] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15066] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15066] ioctl(4, LOOP_CLR_FD) = 0 [pid 15066] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15066] close(4) = 0 [pid 15066] close(3) = 0 [pid 15066] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15066] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15066] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15066] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15066] open("./bus", O_RDONLY) = 3 [pid 15066] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15066] exit_group(0) = ? [pid 15066] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15066, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15067 ./strace-static-x86_64: Process 15067 attached [pid 15067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15067] setpgid(0, 0) = 0 [pid 15067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15067] write(3, "1000", 4) = 4 [pid 15067] close(3) = 0 [pid 15067] memfd_create("syzkaller", 0) = 3 [pid 15067] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15067] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15067] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15067] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15067] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15067] ioctl(4, LOOP_CLR_FD) = 0 [pid 15067] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15067] close(4) = 0 [pid 15067] close(3) = 0 [pid 15067] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15067] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15067] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15067] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15067] open("./bus", O_RDONLY) = 3 [pid 15067] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15067] exit_group(0) = ? [pid 15067] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15067, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15068 attached , child_tidptr=0x5555575235d0) = 15068 [pid 15068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15068] setpgid(0, 0) = 0 [pid 15068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15068] write(3, "1000", 4) = 4 [pid 15068] close(3) = 0 [pid 15068] memfd_create("syzkaller", 0) = 3 [pid 15068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15068] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15068] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15068] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15068] ioctl(4, LOOP_CLR_FD) = 0 [pid 15068] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15068] close(4) = 0 [pid 15068] close(3) = 0 [pid 15068] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15068] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15068] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15068] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15068] open("./bus", O_RDONLY) = 3 [pid 15068] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15068] exit_group(0) = ? [pid 15068] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15068, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15069 ./strace-static-x86_64: Process 15069 attached [pid 15069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15069] setpgid(0, 0) = 0 [pid 15069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15069] write(3, "1000", 4) = 4 [pid 15069] close(3) = 0 [pid 15069] memfd_create("syzkaller", 0) = 3 [pid 15069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15069] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15069] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15069] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15069] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15069] ioctl(4, LOOP_CLR_FD) = 0 [pid 15069] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15069] close(4) = 0 [pid 15069] close(3) = 0 [pid 15069] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15069] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15069] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15069] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15069] open("./bus", O_RDONLY) = 3 [pid 15069] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15069] exit_group(0) = ? [pid 15069] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15069, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15070 attached , child_tidptr=0x5555575235d0) = 15070 [pid 15070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15070] setpgid(0, 0) = 0 [pid 15070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15070] write(3, "1000", 4) = 4 [pid 15070] close(3) = 0 [pid 15070] memfd_create("syzkaller", 0) = 3 [pid 15070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15070] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15070] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15070] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15070] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15070] ioctl(4, LOOP_CLR_FD) = 0 [pid 15070] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15070] close(4) = 0 [pid 15070] close(3) = 0 [pid 15070] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15070] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15070] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15070] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15070] open("./bus", O_RDONLY) = 3 [pid 15070] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15070] exit_group(0) = ? [pid 15070] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15070, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15071 attached , child_tidptr=0x5555575235d0) = 15071 [pid 15071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15071] setpgid(0, 0) = 0 [pid 15071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15071] write(3, "1000", 4) = 4 [pid 15071] close(3) = 0 [pid 15071] memfd_create("syzkaller", 0) = 3 [pid 15071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15071] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15071] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15071] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15071] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15071] ioctl(4, LOOP_CLR_FD) = 0 [pid 15071] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15071] close(4) = 0 [pid 15071] close(3) = 0 [pid 15071] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15071] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15071] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15071] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15071] open("./bus", O_RDONLY) = 3 [pid 15071] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15071] exit_group(0) = ? [pid 15071] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15071, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15072 ./strace-static-x86_64: Process 15072 attached [pid 15072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15072] setpgid(0, 0) = 0 [pid 15072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15072] write(3, "1000", 4) = 4 [pid 15072] close(3) = 0 [pid 15072] memfd_create("syzkaller", 0) = 3 [pid 15072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15072] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15072] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15072] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15072] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15072] ioctl(4, LOOP_CLR_FD) = 0 [pid 15072] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15072] close(4) = 0 [pid 15072] close(3) = 0 [pid 15072] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15072] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15072] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15072] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15072] open("./bus", O_RDONLY) = 3 [pid 15072] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15072] exit_group(0) = ? [pid 15072] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15072, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15073 ./strace-static-x86_64: Process 15073 attached [pid 15073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15073] setpgid(0, 0) = 0 [pid 15073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15073] write(3, "1000", 4) = 4 [pid 15073] close(3) = 0 [pid 15073] memfd_create("syzkaller", 0) = 3 [pid 15073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15073] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15073] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15073] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15073] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15073] ioctl(4, LOOP_CLR_FD) = 0 [pid 15073] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15073] close(4) = 0 [pid 15073] close(3) = 0 [pid 15073] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15073] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15073] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15073] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15073] open("./bus", O_RDONLY) = 3 [pid 15073] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15073] exit_group(0) = ? [pid 15073] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15073, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15074 attached , child_tidptr=0x5555575235d0) = 15074 [pid 15074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15074] setpgid(0, 0) = 0 [pid 15074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15074] write(3, "1000", 4) = 4 [pid 15074] close(3) = 0 [pid 15074] memfd_create("syzkaller", 0) = 3 [pid 15074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15074] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15074] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15074] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15074] ioctl(4, LOOP_CLR_FD) = 0 [pid 15074] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15074] close(4) = 0 [pid 15074] close(3) = 0 [pid 15074] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15074] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15074] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15074] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15074] open("./bus", O_RDONLY) = 3 [pid 15074] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15074] exit_group(0) = ? [pid 15074] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15074, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15075 attached , child_tidptr=0x5555575235d0) = 15075 [pid 15075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15075] setpgid(0, 0) = 0 [pid 15075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15075] write(3, "1000", 4) = 4 [pid 15075] close(3) = 0 [pid 15075] memfd_create("syzkaller", 0) = 3 [pid 15075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15075] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15075] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15075] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15075] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15075] ioctl(4, LOOP_CLR_FD) = 0 [pid 15075] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15075] close(4) = 0 [pid 15075] close(3) = 0 [pid 15075] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15075] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15075] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15075] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15075] open("./bus", O_RDONLY) = 3 [pid 15075] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15075] exit_group(0) = ? [pid 15075] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15075, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15076 attached , child_tidptr=0x5555575235d0) = 15076 [pid 15076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15076] setpgid(0, 0) = 0 [pid 15076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15076] write(3, "1000", 4) = 4 [pid 15076] close(3) = 0 [pid 15076] memfd_create("syzkaller", 0) = 3 [pid 15076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15076] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15076] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15076] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15076] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15076] ioctl(4, LOOP_CLR_FD) = 0 [pid 15076] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15076] close(4) = 0 [pid 15076] close(3) = 0 [pid 15076] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15076] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15076] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15076] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15076] open("./bus", O_RDONLY) = 3 [pid 15076] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15076] exit_group(0) = ? [pid 15076] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15076, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15077 ./strace-static-x86_64: Process 15077 attached [pid 15077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15077] setpgid(0, 0) = 0 [pid 15077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15077] write(3, "1000", 4) = 4 [pid 15077] close(3) = 0 [pid 15077] memfd_create("syzkaller", 0) = 3 [pid 15077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15077] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15077] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15077] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15077] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15077] ioctl(4, LOOP_CLR_FD) = 0 [pid 15077] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15077] close(4) = 0 [pid 15077] close(3) = 0 [pid 15077] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15077] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15077] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15077] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15077] open("./bus", O_RDONLY) = 3 [pid 15077] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15077] exit_group(0) = ? [pid 15077] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15077, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15078 ./strace-static-x86_64: Process 15078 attached [pid 15078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15078] setpgid(0, 0) = 0 [pid 15078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15078] write(3, "1000", 4) = 4 [pid 15078] close(3) = 0 [pid 15078] memfd_create("syzkaller", 0) = 3 [pid 15078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15078] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15078] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15078] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15078] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15078] ioctl(4, LOOP_CLR_FD) = 0 [pid 15078] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15078] close(4) = 0 [pid 15078] close(3) = 0 [pid 15078] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15078] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15078] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15078] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15078] open("./bus", O_RDONLY) = 3 [pid 15078] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15078] exit_group(0) = ? [pid 15078] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15078, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15079 ./strace-static-x86_64: Process 15079 attached [pid 15079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15079] setpgid(0, 0) = 0 [pid 15079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15079] write(3, "1000", 4) = 4 [pid 15079] close(3) = 0 [pid 15079] memfd_create("syzkaller", 0) = 3 [pid 15079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15079] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15079] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15079] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15079] ioctl(4, LOOP_CLR_FD) = 0 [pid 15079] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15079] close(4) = 0 [pid 15079] close(3) = 0 [pid 15079] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15079] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15079] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15079] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15079] open("./bus", O_RDONLY) = 3 [pid 15079] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15079] exit_group(0) = ? [pid 15079] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15079, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15080 ./strace-static-x86_64: Process 15080 attached [pid 15080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15080] setpgid(0, 0) = 0 [pid 15080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15080] write(3, "1000", 4) = 4 [pid 15080] close(3) = 0 [pid 15080] memfd_create("syzkaller", 0) = 3 [pid 15080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15080] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15080] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15080] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15080] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15080] ioctl(4, LOOP_CLR_FD) = 0 [pid 15080] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15080] close(4) = 0 [pid 15080] close(3) = 0 [pid 15080] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15080] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15080] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15080] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15080] open("./bus", O_RDONLY) = 3 [pid 15080] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15080] exit_group(0) = ? [pid 15080] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15080, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15081 ./strace-static-x86_64: Process 15081 attached [pid 15081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15081] setpgid(0, 0) = 0 [pid 15081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15081] write(3, "1000", 4) = 4 [pid 15081] close(3) = 0 [pid 15081] memfd_create("syzkaller", 0) = 3 [pid 15081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15081] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15081] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15081] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15081] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15081] ioctl(4, LOOP_CLR_FD) = 0 [pid 15081] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15081] close(4) = 0 [pid 15081] close(3) = 0 [pid 15081] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15081] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15081] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15081] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15081] open("./bus", O_RDONLY) = 3 [pid 15081] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15081] exit_group(0) = ? [pid 15081] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15081, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15082 ./strace-static-x86_64: Process 15082 attached [pid 15082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15082] setpgid(0, 0) = 0 [pid 15082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15082] write(3, "1000", 4) = 4 [pid 15082] close(3) = 0 [pid 15082] memfd_create("syzkaller", 0) = 3 [pid 15082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15082] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15082] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15082] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15082] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15082] ioctl(4, LOOP_CLR_FD) = 0 [pid 15082] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15082] close(4) = 0 [pid 15082] close(3) = 0 [pid 15082] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15082] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15082] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15082] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15082] open("./bus", O_RDONLY) = 3 [pid 15082] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15082] exit_group(0) = ? [pid 15082] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15082, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15083 ./strace-static-x86_64: Process 15083 attached [pid 15083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15083] setpgid(0, 0) = 0 [pid 15083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15083] write(3, "1000", 4) = 4 [pid 15083] close(3) = 0 [pid 15083] memfd_create("syzkaller", 0) = 3 [pid 15083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15083] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15083] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15083] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15083] ioctl(4, LOOP_CLR_FD) = 0 [pid 15083] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15083] close(4) = 0 [pid 15083] close(3) = 0 [pid 15083] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15083] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15083] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15083] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15083] open("./bus", O_RDONLY) = 3 [pid 15083] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15083] exit_group(0) = ? [pid 15083] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15083, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15084 attached , child_tidptr=0x5555575235d0) = 15084 [pid 15084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15084] setpgid(0, 0) = 0 [pid 15084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15084] write(3, "1000", 4) = 4 [pid 15084] close(3) = 0 [pid 15084] memfd_create("syzkaller", 0) = 3 [pid 15084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15084] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15084] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15084] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15084] ioctl(4, LOOP_CLR_FD) = 0 [pid 15084] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15084] close(4) = 0 [pid 15084] close(3) = 0 [pid 15084] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15084] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15084] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15084] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15084] open("./bus", O_RDONLY) = 3 [pid 15084] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15084] exit_group(0) = ? [pid 15084] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15084, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15085 ./strace-static-x86_64: Process 15085 attached [pid 15085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15085] setpgid(0, 0) = 0 [pid 15085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15085] write(3, "1000", 4) = 4 [pid 15085] close(3) = 0 [pid 15085] memfd_create("syzkaller", 0) = 3 [pid 15085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15085] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15085] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15085] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15085] ioctl(4, LOOP_CLR_FD) = 0 [pid 15085] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15085] close(4) = 0 [pid 15085] close(3) = 0 [pid 15085] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15085] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15085] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15085] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15085] open("./bus", O_RDONLY) = 3 [pid 15085] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15085] exit_group(0) = ? [pid 15085] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15085, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15086 ./strace-static-x86_64: Process 15086 attached [pid 15086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15086] setpgid(0, 0) = 0 [pid 15086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15086] write(3, "1000", 4) = 4 [pid 15086] close(3) = 0 [pid 15086] memfd_create("syzkaller", 0) = 3 [pid 15086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15086] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15086] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15086] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15086] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15086] ioctl(4, LOOP_CLR_FD) = 0 [pid 15086] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15086] close(4) = 0 [pid 15086] close(3) = 0 [pid 15086] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15086] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15086] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15086] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15086] open("./bus", O_RDONLY) = 3 [pid 15086] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15086] exit_group(0) = ? [pid 15086] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15086, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15087 ./strace-static-x86_64: Process 15087 attached [pid 15087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15087] setpgid(0, 0) = 0 [pid 15087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15087] write(3, "1000", 4) = 4 [pid 15087] close(3) = 0 [pid 15087] memfd_create("syzkaller", 0) = 3 [pid 15087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15087] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15087] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15087] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15087] ioctl(4, LOOP_CLR_FD) = 0 [pid 15087] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15087] close(4) = 0 [pid 15087] close(3) = 0 [pid 15087] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15087] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15087] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15087] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15087] open("./bus", O_RDONLY) = 3 [pid 15087] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15087] exit_group(0) = ? [pid 15087] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15087, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15088 attached , child_tidptr=0x5555575235d0) = 15088 [pid 15088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15088] setpgid(0, 0) = 0 [pid 15088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15088] write(3, "1000", 4) = 4 [pid 15088] close(3) = 0 [pid 15088] memfd_create("syzkaller", 0) = 3 [pid 15088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15088] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15088] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15088] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15088] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15088] ioctl(4, LOOP_CLR_FD) = 0 [pid 15088] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15088] close(4) = 0 [pid 15088] close(3) = 0 [pid 15088] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15088] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15088] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15088] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15088] open("./bus", O_RDONLY) = 3 [pid 15088] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15088] exit_group(0) = ? [pid 15088] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15088, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15089 attached , child_tidptr=0x5555575235d0) = 15089 [pid 15089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15089] setpgid(0, 0) = 0 [pid 15089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15089] write(3, "1000", 4) = 4 [pid 15089] close(3) = 0 [pid 15089] memfd_create("syzkaller", 0) = 3 [pid 15089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15089] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15089] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15089] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15089] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15089] ioctl(4, LOOP_CLR_FD) = 0 [pid 15089] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15089] close(4) = 0 [pid 15089] close(3) = 0 [pid 15089] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15089] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15089] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15089] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15089] open("./bus", O_RDONLY) = 3 [pid 15089] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15089] exit_group(0) = ? [pid 15089] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15089, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15090 attached , child_tidptr=0x5555575235d0) = 15090 [pid 15090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15090] setpgid(0, 0) = 0 [pid 15090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15090] write(3, "1000", 4) = 4 [pid 15090] close(3) = 0 [pid 15090] memfd_create("syzkaller", 0) = 3 [pid 15090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15090] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15090] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15090] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15090] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15090] ioctl(4, LOOP_CLR_FD) = 0 [pid 15090] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15090] close(4) = 0 [pid 15090] close(3) = 0 [pid 15090] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15090] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15090] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15090] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15090] open("./bus", O_RDONLY) = 3 [pid 15090] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15090] exit_group(0) = ? [pid 15090] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15090, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15091 ./strace-static-x86_64: Process 15091 attached [pid 15091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15091] setpgid(0, 0) = 0 [pid 15091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15091] write(3, "1000", 4) = 4 [pid 15091] close(3) = 0 [pid 15091] memfd_create("syzkaller", 0) = 3 [pid 15091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15091] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15091] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15091] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15091] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15091] ioctl(4, LOOP_CLR_FD) = 0 [pid 15091] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15091] close(4) = 0 [pid 15091] close(3) = 0 [pid 15091] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15091] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15091] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15091] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15091] open("./bus", O_RDONLY) = 3 [pid 15091] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15091] exit_group(0) = ? [pid 15091] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15091, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15092 attached , child_tidptr=0x5555575235d0) = 15092 [pid 15092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15092] setpgid(0, 0) = 0 [pid 15092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15092] write(3, "1000", 4) = 4 [pid 15092] close(3) = 0 [pid 15092] memfd_create("syzkaller", 0) = 3 [pid 15092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15092] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15092] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15092] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15092] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15092] ioctl(4, LOOP_CLR_FD) = 0 [pid 15092] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15092] close(4) = 0 [pid 15092] close(3) = 0 [pid 15092] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15092] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15092] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15092] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15092] open("./bus", O_RDONLY) = 3 [pid 15092] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15092] exit_group(0) = ? [pid 15092] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15092, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15093 ./strace-static-x86_64: Process 15093 attached [pid 15093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15093] setpgid(0, 0) = 0 [pid 15093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15093] write(3, "1000", 4) = 4 [pid 15093] close(3) = 0 [pid 15093] memfd_create("syzkaller", 0) = 3 [pid 15093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15093] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15093] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15093] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15093] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15093] ioctl(4, LOOP_CLR_FD) = 0 [pid 15093] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15093] close(4) = 0 [pid 15093] close(3) = 0 [pid 15093] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15093] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15093] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15093] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15093] open("./bus", O_RDONLY) = 3 [pid 15093] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15093] exit_group(0) = ? [pid 15093] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15093, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15094 ./strace-static-x86_64: Process 15094 attached [pid 15094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15094] setpgid(0, 0) = 0 [pid 15094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15094] write(3, "1000", 4) = 4 [pid 15094] close(3) = 0 [pid 15094] memfd_create("syzkaller", 0) = 3 [pid 15094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15094] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15094] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15094] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15094] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15094] ioctl(4, LOOP_CLR_FD) = 0 [pid 15094] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15094] close(4) = 0 [pid 15094] close(3) = 0 [pid 15094] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15094] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15094] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15094] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15094] open("./bus", O_RDONLY) = 3 [pid 15094] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15094] exit_group(0) = ? [pid 15094] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15094, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15095 ./strace-static-x86_64: Process 15095 attached [pid 15095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15095] setpgid(0, 0) = 0 [pid 15095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15095] write(3, "1000", 4) = 4 [pid 15095] close(3) = 0 [pid 15095] memfd_create("syzkaller", 0) = 3 [pid 15095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15095] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15095] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15095] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15095] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15095] ioctl(4, LOOP_CLR_FD) = 0 [pid 15095] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15095] close(4) = 0 [pid 15095] close(3) = 0 [pid 15095] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15095] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15095] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15095] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15095] open("./bus", O_RDONLY) = 3 [pid 15095] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15095] exit_group(0) = ? [pid 15095] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15095, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15096 attached , child_tidptr=0x5555575235d0) = 15096 [pid 15096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15096] setpgid(0, 0) = 0 [pid 15096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15096] write(3, "1000", 4) = 4 [pid 15096] close(3) = 0 [pid 15096] memfd_create("syzkaller", 0) = 3 [pid 15096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15096] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15096] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15096] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15096] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15096] ioctl(4, LOOP_CLR_FD) = 0 [pid 15096] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15096] close(4) = 0 [pid 15096] close(3) = 0 [pid 15096] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15096] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15096] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15096] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15096] open("./bus", O_RDONLY) = 3 [pid 15096] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15096] exit_group(0) = ? [pid 15096] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15096, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15097 attached , child_tidptr=0x5555575235d0) = 15097 [pid 15097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15097] setpgid(0, 0) = 0 [pid 15097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15097] write(3, "1000", 4) = 4 [pid 15097] close(3) = 0 [pid 15097] memfd_create("syzkaller", 0) = 3 [pid 15097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15097] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15097] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15097] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15097] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15097] ioctl(4, LOOP_CLR_FD) = 0 [pid 15097] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15097] close(4) = 0 [pid 15097] close(3) = 0 [pid 15097] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15097] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15097] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15097] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15097] open("./bus", O_RDONLY) = 3 [pid 15097] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15097] exit_group(0) = ? [pid 15097] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15097, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15098 ./strace-static-x86_64: Process 15098 attached [pid 15098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15098] setpgid(0, 0) = 0 [pid 15098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15098] write(3, "1000", 4) = 4 [pid 15098] close(3) = 0 [pid 15098] memfd_create("syzkaller", 0) = 3 [pid 15098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15098] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15098] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15098] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15098] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15098] ioctl(4, LOOP_CLR_FD) = 0 [pid 15098] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15098] close(4) = 0 [pid 15098] close(3) = 0 [pid 15098] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15098] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15098] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15098] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15098] open("./bus", O_RDONLY) = 3 [pid 15098] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15098] exit_group(0) = ? [pid 15098] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15098, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15099 ./strace-static-x86_64: Process 15099 attached [pid 15099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15099] setpgid(0, 0) = 0 [pid 15099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15099] write(3, "1000", 4) = 4 [pid 15099] close(3) = 0 [pid 15099] memfd_create("syzkaller", 0) = 3 [pid 15099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15099] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15099] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15099] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15099] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15099] ioctl(4, LOOP_CLR_FD) = 0 [pid 15099] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15099] close(4) = 0 [pid 15099] close(3) = 0 [pid 15099] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15099] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15099] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15099] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15099] open("./bus", O_RDONLY) = 3 [pid 15099] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15099] exit_group(0) = ? [pid 15099] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15099, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15100 attached , child_tidptr=0x5555575235d0) = 15100 [pid 15100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15100] setpgid(0, 0) = 0 [pid 15100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15100] write(3, "1000", 4) = 4 [pid 15100] close(3) = 0 [pid 15100] memfd_create("syzkaller", 0) = 3 [pid 15100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15100] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15100] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15100] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15100] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15100] ioctl(4, LOOP_CLR_FD) = 0 [pid 15100] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15100] close(4) = 0 [pid 15100] close(3) = 0 [pid 15100] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15100] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15100] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15100] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15100] open("./bus", O_RDONLY) = 3 [pid 15100] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15100] exit_group(0) = ? [pid 15100] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15100, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15101 ./strace-static-x86_64: Process 15101 attached [pid 15101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15101] setpgid(0, 0) = 0 [pid 15101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15101] write(3, "1000", 4) = 4 [pid 15101] close(3) = 0 [pid 15101] memfd_create("syzkaller", 0) = 3 [pid 15101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15101] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15101] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15101] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15101] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15101] ioctl(4, LOOP_CLR_FD) = 0 [pid 15101] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15101] close(4) = 0 [pid 15101] close(3) = 0 [pid 15101] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15101] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15101] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15101] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15101] open("./bus", O_RDONLY) = 3 [pid 15101] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15101] exit_group(0) = ? [pid 15101] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15101, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15102 ./strace-static-x86_64: Process 15102 attached [pid 15102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15102] setpgid(0, 0) = 0 [pid 15102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15102] write(3, "1000", 4) = 4 [pid 15102] close(3) = 0 [pid 15102] memfd_create("syzkaller", 0) = 3 [pid 15102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15102] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15102] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15102] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15102] ioctl(4, LOOP_CLR_FD) = 0 [pid 15102] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15102] close(4) = 0 [pid 15102] close(3) = 0 [pid 15102] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15102] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15102] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15102] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15102] open("./bus", O_RDONLY) = 3 [pid 15102] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15102] exit_group(0) = ? [pid 15102] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15102, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15103 ./strace-static-x86_64: Process 15103 attached [pid 15103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15103] setpgid(0, 0) = 0 [pid 15103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15103] write(3, "1000", 4) = 4 [pid 15103] close(3) = 0 [pid 15103] memfd_create("syzkaller", 0) = 3 [pid 15103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15103] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15103] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15103] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15103] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15103] ioctl(4, LOOP_CLR_FD) = 0 [pid 15103] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15103] close(4) = 0 [pid 15103] close(3) = 0 [pid 15103] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15103] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15103] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15103] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15103] open("./bus", O_RDONLY) = 3 [pid 15103] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15103] exit_group(0) = ? [pid 15103] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15103, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15104 attached , child_tidptr=0x5555575235d0) = 15104 [pid 15104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15104] setpgid(0, 0) = 0 [pid 15104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15104] write(3, "1000", 4) = 4 [pid 15104] close(3) = 0 [pid 15104] memfd_create("syzkaller", 0) = 3 [pid 15104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15104] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15104] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15104] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15104] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15104] ioctl(4, LOOP_CLR_FD) = 0 [pid 15104] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15104] close(4) = 0 [pid 15104] close(3) = 0 [pid 15104] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15104] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15104] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15104] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15104] open("./bus", O_RDONLY) = 3 [pid 15104] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15104] exit_group(0) = ? [pid 15104] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15104, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15105 attached , child_tidptr=0x5555575235d0) = 15105 [pid 15105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15105] setpgid(0, 0) = 0 [pid 15105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15105] write(3, "1000", 4) = 4 [pid 15105] close(3) = 0 [pid 15105] memfd_create("syzkaller", 0) = 3 [pid 15105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15105] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15105] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15105] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15105] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15105] ioctl(4, LOOP_CLR_FD) = 0 [pid 15105] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15105] close(4) = 0 [pid 15105] close(3) = 0 [pid 15105] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15105] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15105] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15105] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15105] open("./bus", O_RDONLY) = 3 [pid 15105] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15105] exit_group(0) = ? [pid 15105] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15105, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15106 attached , child_tidptr=0x5555575235d0) = 15106 [pid 15106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15106] setpgid(0, 0) = 0 [pid 15106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15106] write(3, "1000", 4) = 4 [pid 15106] close(3) = 0 [pid 15106] memfd_create("syzkaller", 0) = 3 [pid 15106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15106] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15106] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15106] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15106] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15106] ioctl(4, LOOP_CLR_FD) = 0 [pid 15106] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15106] close(4) = 0 [pid 15106] close(3) = 0 [pid 15106] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15106] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15106] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15106] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15106] open("./bus", O_RDONLY) = 3 [pid 15106] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15106] exit_group(0) = ? [pid 15106] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15106, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15107 ./strace-static-x86_64: Process 15107 attached [pid 15107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15107] setpgid(0, 0) = 0 [pid 15107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15107] write(3, "1000", 4) = 4 [pid 15107] close(3) = 0 [pid 15107] memfd_create("syzkaller", 0) = 3 [pid 15107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15107] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15107] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15107] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15107] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15107] ioctl(4, LOOP_CLR_FD) = 0 [pid 15107] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15107] close(4) = 0 [pid 15107] close(3) = 0 [pid 15107] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15107] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15107] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15107] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15107] open("./bus", O_RDONLY) = 3 [pid 15107] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15107] exit_group(0) = ? [pid 15107] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15107, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15108 ./strace-static-x86_64: Process 15108 attached [pid 15108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15108] setpgid(0, 0) = 0 [pid 15108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15108] write(3, "1000", 4) = 4 [pid 15108] close(3) = 0 [pid 15108] memfd_create("syzkaller", 0) = 3 [pid 15108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15108] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15108] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15108] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15108] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15108] ioctl(4, LOOP_CLR_FD) = 0 [pid 15108] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15108] close(4) = 0 [pid 15108] close(3) = 0 [pid 15108] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15108] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15108] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15108] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15108] open("./bus", O_RDONLY) = 3 [pid 15108] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15108] exit_group(0) = ? [pid 15108] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15108, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15109 ./strace-static-x86_64: Process 15109 attached [pid 15109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15109] setpgid(0, 0) = 0 [pid 15109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15109] write(3, "1000", 4) = 4 [pid 15109] close(3) = 0 [pid 15109] memfd_create("syzkaller", 0) = 3 [pid 15109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15109] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15109] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15109] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15109] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15109] ioctl(4, LOOP_CLR_FD) = 0 [pid 15109] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15109] close(4) = 0 [pid 15109] close(3) = 0 [pid 15109] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15109] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15109] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15109] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15109] open("./bus", O_RDONLY) = 3 [pid 15109] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15109] exit_group(0) = ? [pid 15109] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15109, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15110 ./strace-static-x86_64: Process 15110 attached [pid 15110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15110] setpgid(0, 0) = 0 [pid 15110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15110] write(3, "1000", 4) = 4 [pid 15110] close(3) = 0 [pid 15110] memfd_create("syzkaller", 0) = 3 [pid 15110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15110] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15110] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15110] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15110] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15110] ioctl(4, LOOP_CLR_FD) = 0 [pid 15110] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15110] close(4) = 0 [pid 15110] close(3) = 0 [pid 15110] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15110] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15110] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15110] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15110] open("./bus", O_RDONLY) = 3 [pid 15110] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15110] exit_group(0) = ? [pid 15110] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15110, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15111 ./strace-static-x86_64: Process 15111 attached [pid 15111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15111] setpgid(0, 0) = 0 [pid 15111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15111] write(3, "1000", 4) = 4 [pid 15111] close(3) = 0 [pid 15111] memfd_create("syzkaller", 0) = 3 [pid 15111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15111] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15111] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15111] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15111] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15111] ioctl(4, LOOP_CLR_FD) = 0 [pid 15111] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15111] close(4) = 0 [pid 15111] close(3) = 0 [pid 15111] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15111] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15111] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15111] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15111] open("./bus", O_RDONLY) = 3 [pid 15111] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15111] exit_group(0) = ? [pid 15111] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15111, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15112 attached , child_tidptr=0x5555575235d0) = 15112 [pid 15112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15112] setpgid(0, 0) = 0 [pid 15112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15112] write(3, "1000", 4) = 4 [pid 15112] close(3) = 0 [pid 15112] memfd_create("syzkaller", 0) = 3 [pid 15112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15112] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15112] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15112] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15112] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15112] ioctl(4, LOOP_CLR_FD) = 0 [pid 15112] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15112] close(4) = 0 [pid 15112] close(3) = 0 [pid 15112] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15112] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15112] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15112] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15112] open("./bus", O_RDONLY) = 3 [pid 15112] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15112] exit_group(0) = ? [pid 15112] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15112, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15113 ./strace-static-x86_64: Process 15113 attached [pid 15113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15113] setpgid(0, 0) = 0 [pid 15113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15113] write(3, "1000", 4) = 4 [pid 15113] close(3) = 0 [pid 15113] memfd_create("syzkaller", 0) = 3 [pid 15113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15113] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15113] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15113] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15113] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15113] ioctl(4, LOOP_CLR_FD) = 0 [pid 15113] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15113] close(4) = 0 [pid 15113] close(3) = 0 [pid 15113] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15113] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15113] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15113] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15113] open("./bus", O_RDONLY) = 3 [pid 15113] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15113] exit_group(0) = ? [pid 15113] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15113, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15114 attached , child_tidptr=0x5555575235d0) = 15114 [pid 15114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15114] setpgid(0, 0) = 0 [pid 15114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15114] write(3, "1000", 4) = 4 [pid 15114] close(3) = 0 [pid 15114] memfd_create("syzkaller", 0) = 3 [pid 15114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15114] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15114] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15114] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15114] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15114] ioctl(4, LOOP_CLR_FD) = 0 [pid 15114] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15114] close(4) = 0 [pid 15114] close(3) = 0 [pid 15114] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15114] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15114] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15114] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15114] open("./bus", O_RDONLY) = 3 [pid 15114] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15114] exit_group(0) = ? [pid 15114] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15114, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15115 attached , child_tidptr=0x5555575235d0) = 15115 [pid 15115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15115] setpgid(0, 0) = 0 [pid 15115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15115] write(3, "1000", 4) = 4 [pid 15115] close(3) = 0 [pid 15115] memfd_create("syzkaller", 0) = 3 [pid 15115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15115] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15115] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15115] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15115] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15115] ioctl(4, LOOP_CLR_FD) = 0 [pid 15115] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15115] close(4) = 0 [pid 15115] close(3) = 0 [pid 15115] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15115] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15115] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15115] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15115] open("./bus", O_RDONLY) = 3 [pid 15115] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15115] exit_group(0) = ? [pid 15115] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15115, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15116 attached , child_tidptr=0x5555575235d0) = 15116 [pid 15116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15116] setpgid(0, 0) = 0 [pid 15116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15116] write(3, "1000", 4) = 4 [pid 15116] close(3) = 0 [pid 15116] memfd_create("syzkaller", 0) = 3 [pid 15116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15116] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15116] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15116] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15116] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15116] ioctl(4, LOOP_CLR_FD) = 0 [pid 15116] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15116] close(4) = 0 [pid 15116] close(3) = 0 [pid 15116] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15116] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15116] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15116] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15116] open("./bus", O_RDONLY) = 3 [pid 15116] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15116] exit_group(0) = ? [pid 15116] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15116, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15117 ./strace-static-x86_64: Process 15117 attached [pid 15117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15117] setpgid(0, 0) = 0 [pid 15117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15117] write(3, "1000", 4) = 4 [pid 15117] close(3) = 0 [pid 15117] memfd_create("syzkaller", 0) = 3 [pid 15117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15117] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15117] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15117] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15117] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15117] ioctl(4, LOOP_CLR_FD) = 0 [pid 15117] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15117] close(4) = 0 [pid 15117] close(3) = 0 [pid 15117] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15117] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15117] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15117] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15117] open("./bus", O_RDONLY) = 3 [pid 15117] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15117] exit_group(0) = ? [pid 15117] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15117, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15118 ./strace-static-x86_64: Process 15118 attached [pid 15118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15118] setpgid(0, 0) = 0 [pid 15118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15118] write(3, "1000", 4) = 4 [pid 15118] close(3) = 0 [pid 15118] memfd_create("syzkaller", 0) = 3 [pid 15118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15118] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15118] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15118] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15118] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15118] ioctl(4, LOOP_CLR_FD) = 0 [pid 15118] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15118] close(4) = 0 [pid 15118] close(3) = 0 [pid 15118] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15118] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15118] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15118] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15118] open("./bus", O_RDONLY) = 3 [pid 15118] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15118] exit_group(0) = ? [pid 15118] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15118, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15119 attached , child_tidptr=0x5555575235d0) = 15119 [pid 15119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15119] setpgid(0, 0) = 0 [pid 15119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15119] write(3, "1000", 4) = 4 [pid 15119] close(3) = 0 [pid 15119] memfd_create("syzkaller", 0) = 3 [pid 15119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15119] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15119] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15119] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15119] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15119] ioctl(4, LOOP_CLR_FD) = 0 [pid 15119] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15119] close(4) = 0 [pid 15119] close(3) = 0 [pid 15119] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15119] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15119] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15119] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15119] open("./bus", O_RDONLY) = 3 [pid 15119] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15119] exit_group(0) = ? [pid 15119] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15119, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15120 ./strace-static-x86_64: Process 15120 attached [pid 15120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15120] setpgid(0, 0) = 0 [pid 15120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15120] write(3, "1000", 4) = 4 [pid 15120] close(3) = 0 [pid 15120] memfd_create("syzkaller", 0) = 3 [pid 15120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15120] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15120] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15120] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15120] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15120] ioctl(4, LOOP_CLR_FD) = 0 [pid 15120] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15120] close(4) = 0 [pid 15120] close(3) = 0 [pid 15120] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15120] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15120] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15120] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15120] open("./bus", O_RDONLY) = 3 [pid 15120] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15120] exit_group(0) = ? [pid 15120] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15120, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15121 ./strace-static-x86_64: Process 15121 attached [pid 15121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15121] setpgid(0, 0) = 0 [pid 15121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15121] write(3, "1000", 4) = 4 [pid 15121] close(3) = 0 [pid 15121] memfd_create("syzkaller", 0) = 3 [pid 15121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15121] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15121] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15121] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15121] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15121] ioctl(4, LOOP_CLR_FD) = 0 [pid 15121] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15121] close(4) = 0 [pid 15121] close(3) = 0 [pid 15121] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15121] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15121] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15121] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15121] open("./bus", O_RDONLY) = 3 [pid 15121] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15121] exit_group(0) = ? [pid 15121] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15121, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15122 attached , child_tidptr=0x5555575235d0) = 15122 [pid 15122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15122] setpgid(0, 0) = 0 [pid 15122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15122] write(3, "1000", 4) = 4 [pid 15122] close(3) = 0 [pid 15122] memfd_create("syzkaller", 0) = 3 [pid 15122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15122] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15122] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15122] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15122] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15122] ioctl(4, LOOP_CLR_FD) = 0 [pid 15122] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15122] close(4) = 0 [pid 15122] close(3) = 0 [pid 15122] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15122] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15122] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15122] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15122] open("./bus", O_RDONLY) = 3 [pid 15122] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15122] exit_group(0) = ? [pid 15122] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15122, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15123 attached , child_tidptr=0x5555575235d0) = 15123 [pid 15123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15123] setpgid(0, 0) = 0 [pid 15123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15123] write(3, "1000", 4) = 4 [pid 15123] close(3) = 0 [pid 15123] memfd_create("syzkaller", 0) = 3 [pid 15123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15123] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15123] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15123] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15123] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15123] ioctl(4, LOOP_CLR_FD) = 0 [pid 15123] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15123] close(4) = 0 [pid 15123] close(3) = 0 [pid 15123] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15123] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15123] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15123] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15123] open("./bus", O_RDONLY) = 3 [pid 15123] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15123] exit_group(0) = ? [pid 15123] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15123, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15124 attached , child_tidptr=0x5555575235d0) = 15124 [pid 15124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15124] setpgid(0, 0) = 0 [pid 15124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15124] write(3, "1000", 4) = 4 [pid 15124] close(3) = 0 [pid 15124] memfd_create("syzkaller", 0) = 3 [pid 15124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15124] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15124] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15124] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15124] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15124] ioctl(4, LOOP_CLR_FD) = 0 [pid 15124] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15124] close(4) = 0 [pid 15124] close(3) = 0 [pid 15124] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15124] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15124] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15124] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15124] open("./bus", O_RDONLY) = 3 [pid 15124] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15124] exit_group(0) = ? [pid 15124] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15124, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15125 ./strace-static-x86_64: Process 15125 attached [pid 15125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15125] setpgid(0, 0) = 0 [pid 15125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15125] write(3, "1000", 4) = 4 [pid 15125] close(3) = 0 [pid 15125] memfd_create("syzkaller", 0) = 3 [pid 15125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15125] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15125] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15125] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15125] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15125] ioctl(4, LOOP_CLR_FD) = 0 [pid 15125] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15125] close(4) = 0 [pid 15125] close(3) = 0 [pid 15125] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15125] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15125] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15125] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15125] open("./bus", O_RDONLY) = 3 [pid 15125] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15125] exit_group(0) = ? [pid 15125] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15125, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15126 ./strace-static-x86_64: Process 15126 attached [pid 15126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15126] setpgid(0, 0) = 0 [pid 15126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15126] write(3, "1000", 4) = 4 [pid 15126] close(3) = 0 [pid 15126] memfd_create("syzkaller", 0) = 3 [pid 15126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15126] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15126] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15126] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15126] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15126] ioctl(4, LOOP_CLR_FD) = 0 [pid 15126] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15126] close(4) = 0 [pid 15126] close(3) = 0 [pid 15126] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15126] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15126] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15126] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15126] open("./bus", O_RDONLY) = 3 [pid 15126] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15126] exit_group(0) = ? [pid 15126] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15126, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15127 ./strace-static-x86_64: Process 15127 attached [pid 15127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15127] setpgid(0, 0) = 0 [pid 15127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15127] write(3, "1000", 4) = 4 [pid 15127] close(3) = 0 [pid 15127] memfd_create("syzkaller", 0) = 3 [pid 15127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15127] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15127] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15127] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15127] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15127] ioctl(4, LOOP_CLR_FD) = 0 [pid 15127] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15127] close(4) = 0 [pid 15127] close(3) = 0 [pid 15127] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15127] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15127] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15127] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15127] open("./bus", O_RDONLY) = 3 [pid 15127] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15127] exit_group(0) = ? [pid 15127] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15127, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15128 ./strace-static-x86_64: Process 15128 attached [pid 15128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15128] setpgid(0, 0) = 0 [pid 15128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15128] write(3, "1000", 4) = 4 [pid 15128] close(3) = 0 [pid 15128] memfd_create("syzkaller", 0) = 3 [pid 15128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15128] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15128] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15128] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15128] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15128] ioctl(4, LOOP_CLR_FD) = 0 [pid 15128] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15128] close(4) = 0 [pid 15128] close(3) = 0 [pid 15128] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15128] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15128] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15128] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15128] open("./bus", O_RDONLY) = 3 [pid 15128] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15128] exit_group(0) = ? [pid 15128] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15128, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15129 ./strace-static-x86_64: Process 15129 attached [pid 15129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15129] setpgid(0, 0) = 0 [pid 15129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15129] write(3, "1000", 4) = 4 [pid 15129] close(3) = 0 [pid 15129] memfd_create("syzkaller", 0) = 3 [pid 15129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15129] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15129] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15129] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15129] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15129] ioctl(4, LOOP_CLR_FD) = 0 [pid 15129] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15129] close(4) = 0 [pid 15129] close(3) = 0 [pid 15129] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15129] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15129] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15129] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15129] open("./bus", O_RDONLY) = 3 [pid 15129] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15129] exit_group(0) = ? [pid 15129] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15129, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15130 attached , child_tidptr=0x5555575235d0) = 15130 [pid 15130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15130] setpgid(0, 0) = 0 [pid 15130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15130] write(3, "1000", 4) = 4 [pid 15130] close(3) = 0 [pid 15130] memfd_create("syzkaller", 0) = 3 [pid 15130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15130] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15130] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15130] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15130] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15130] ioctl(4, LOOP_CLR_FD) = 0 [pid 15130] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15130] close(4) = 0 [pid 15130] close(3) = 0 [pid 15130] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15130] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15130] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15130] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15130] open("./bus", O_RDONLY) = 3 [pid 15130] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15130] exit_group(0) = ? [pid 15130] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15130, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15131 attached , child_tidptr=0x5555575235d0) = 15131 [pid 15131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15131] setpgid(0, 0) = 0 [pid 15131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15131] write(3, "1000", 4) = 4 [pid 15131] close(3) = 0 [pid 15131] memfd_create("syzkaller", 0) = 3 [pid 15131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15131] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15131] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15131] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15131] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15131] ioctl(4, LOOP_CLR_FD) = 0 [pid 15131] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15131] close(4) = 0 [pid 15131] close(3) = 0 [pid 15131] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15131] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15131] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15131] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15131] open("./bus", O_RDONLY) = 3 [pid 15131] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15131] exit_group(0) = ? [pid 15131] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15131, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15132 attached , child_tidptr=0x5555575235d0) = 15132 [pid 15132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15132] setpgid(0, 0) = 0 [pid 15132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15132] write(3, "1000", 4) = 4 [pid 15132] close(3) = 0 [pid 15132] memfd_create("syzkaller", 0) = 3 [pid 15132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15132] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15132] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15132] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15132] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15132] ioctl(4, LOOP_CLR_FD) = 0 [pid 15132] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15132] close(4) = 0 [pid 15132] close(3) = 0 [pid 15132] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15132] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15132] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15132] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15132] open("./bus", O_RDONLY) = 3 [pid 15132] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15132] exit_group(0) = ? [pid 15132] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15132, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15133 ./strace-static-x86_64: Process 15133 attached [pid 15133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15133] setpgid(0, 0) = 0 [pid 15133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15133] write(3, "1000", 4) = 4 [pid 15133] close(3) = 0 [pid 15133] memfd_create("syzkaller", 0) = 3 [pid 15133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15133] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15133] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15133] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15133] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15133] ioctl(4, LOOP_CLR_FD) = 0 [pid 15133] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15133] close(4) = 0 [pid 15133] close(3) = 0 [pid 15133] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15133] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15133] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15133] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15133] open("./bus", O_RDONLY) = 3 [pid 15133] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15133] exit_group(0) = ? [pid 15133] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15133, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15134 attached , child_tidptr=0x5555575235d0) = 15134 [pid 15134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15134] setpgid(0, 0) = 0 [pid 15134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15134] write(3, "1000", 4) = 4 [pid 15134] close(3) = 0 [pid 15134] memfd_create("syzkaller", 0) = 3 [pid 15134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15134] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15134] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15134] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15134] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15134] ioctl(4, LOOP_CLR_FD) = 0 [pid 15134] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15134] close(4) = 0 [pid 15134] close(3) = 0 [pid 15134] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15134] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15134] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15134] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15134] open("./bus", O_RDONLY) = 3 [pid 15134] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15134] exit_group(0) = ? [pid 15134] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15134, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15135 attached [pid 15135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5066] <... clone resumed>, child_tidptr=0x5555575235d0) = 15135 [pid 15135] <... prctl resumed>) = 0 [pid 15135] setpgid(0, 0) = 0 [pid 15135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15135] write(3, "1000", 4) = 4 [pid 15135] close(3) = 0 [pid 15135] memfd_create("syzkaller", 0) = 3 [pid 15135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15135] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15135] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15135] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15135] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15135] ioctl(4, LOOP_CLR_FD) = 0 [pid 15135] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15135] close(4) = 0 [pid 15135] close(3) = 0 [pid 15135] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15135] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15135] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15135] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15135] open("./bus", O_RDONLY) = 3 [pid 15135] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15135] exit_group(0) = ? [pid 15135] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15135, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15136 ./strace-static-x86_64: Process 15136 attached [pid 15136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15136] setpgid(0, 0) = 0 [pid 15136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15136] write(3, "1000", 4) = 4 [pid 15136] close(3) = 0 [pid 15136] memfd_create("syzkaller", 0) = 3 [pid 15136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15136] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15136] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15136] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15136] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15136] ioctl(4, LOOP_CLR_FD) = 0 [pid 15136] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15136] close(4) = 0 [pid 15136] close(3) = 0 [pid 15136] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15136] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15136] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15136] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15136] open("./bus", O_RDONLY) = 3 [pid 15136] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15136] exit_group(0) = ? [pid 15136] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15136, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15137 ./strace-static-x86_64: Process 15137 attached [pid 15137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15137] setpgid(0, 0) = 0 [pid 15137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15137] write(3, "1000", 4) = 4 [pid 15137] close(3) = 0 [pid 15137] memfd_create("syzkaller", 0) = 3 [pid 15137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15137] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15137] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15137] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15137] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15137] ioctl(4, LOOP_CLR_FD) = 0 [pid 15137] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15137] close(4) = 0 [pid 15137] close(3) = 0 [pid 15137] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15137] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15137] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15137] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15137] open("./bus", O_RDONLY) = 3 [pid 15137] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15137] exit_group(0) = ? [pid 15137] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15137, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15138 attached , child_tidptr=0x5555575235d0) = 15138 [pid 15138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15138] setpgid(0, 0) = 0 [pid 15138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15138] write(3, "1000", 4) = 4 [pid 15138] close(3) = 0 [pid 15138] memfd_create("syzkaller", 0) = 3 [pid 15138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15138] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15138] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15138] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15138] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15138] ioctl(4, LOOP_CLR_FD) = 0 [pid 15138] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15138] close(4) = 0 [pid 15138] close(3) = 0 [pid 15138] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15138] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15138] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15138] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15138] open("./bus", O_RDONLY) = 3 [pid 15138] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15138] exit_group(0) = ? [pid 15138] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15138, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15139 ./strace-static-x86_64: Process 15139 attached [pid 15139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15139] setpgid(0, 0) = 0 [pid 15139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15139] write(3, "1000", 4) = 4 [pid 15139] close(3) = 0 [pid 15139] memfd_create("syzkaller", 0) = 3 [pid 15139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15139] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15139] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15139] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15139] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15139] ioctl(4, LOOP_CLR_FD) = 0 [pid 15139] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15139] close(4) = 0 [pid 15139] close(3) = 0 [pid 15139] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15139] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15139] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15139] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15139] open("./bus", O_RDONLY) = 3 [pid 15139] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15139] exit_group(0) = ? [pid 15139] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15139, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15140 ./strace-static-x86_64: Process 15140 attached [pid 15140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15140] setpgid(0, 0) = 0 [pid 15140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15140] write(3, "1000", 4) = 4 [pid 15140] close(3) = 0 [pid 15140] memfd_create("syzkaller", 0) = 3 [pid 15140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15140] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15140] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15140] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15140] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15140] ioctl(4, LOOP_CLR_FD) = 0 [pid 15140] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15140] close(4) = 0 [pid 15140] close(3) = 0 [pid 15140] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15140] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15140] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15140] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15140] open("./bus", O_RDONLY) = 3 [pid 15140] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15140] exit_group(0) = ? [pid 15140] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15140, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15141 ./strace-static-x86_64: Process 15141 attached [pid 15141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15141] setpgid(0, 0) = 0 [pid 15141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15141] write(3, "1000", 4) = 4 [pid 15141] close(3) = 0 [pid 15141] memfd_create("syzkaller", 0) = 3 [pid 15141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15141] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15141] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15141] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15141] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15141] ioctl(4, LOOP_CLR_FD) = 0 [pid 15141] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15141] close(4) = 0 [pid 15141] close(3) = 0 [pid 15141] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15141] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15141] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15141] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15141] open("./bus", O_RDONLY) = 3 [pid 15141] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15141] exit_group(0) = ? [pid 15141] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15141, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15142 ./strace-static-x86_64: Process 15142 attached [pid 15142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15142] setpgid(0, 0) = 0 [pid 15142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15142] write(3, "1000", 4) = 4 [pid 15142] close(3) = 0 [pid 15142] memfd_create("syzkaller", 0) = 3 [pid 15142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15142] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15142] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15142] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15142] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15142] ioctl(4, LOOP_CLR_FD) = 0 [pid 15142] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15142] close(4) = 0 [pid 15142] close(3) = 0 [pid 15142] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15142] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15142] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15142] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15142] open("./bus", O_RDONLY) = 3 [pid 15142] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15142] exit_group(0) = ? [pid 15142] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15142, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15143 ./strace-static-x86_64: Process 15143 attached [pid 15143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15143] setpgid(0, 0) = 0 [pid 15143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15143] write(3, "1000", 4) = 4 [pid 15143] close(3) = 0 [pid 15143] memfd_create("syzkaller", 0) = 3 [pid 15143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15143] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15143] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15143] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15143] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15143] ioctl(4, LOOP_CLR_FD) = 0 [pid 15143] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15143] close(4) = 0 [pid 15143] close(3) = 0 [pid 15143] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15143] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15143] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15143] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15143] open("./bus", O_RDONLY) = 3 [pid 15143] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15143] exit_group(0) = ? [pid 15143] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15143, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15144 attached , child_tidptr=0x5555575235d0) = 15144 [pid 15144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15144] setpgid(0, 0) = 0 [pid 15144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15144] write(3, "1000", 4) = 4 [pid 15144] close(3) = 0 [pid 15144] memfd_create("syzkaller", 0) = 3 [pid 15144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15144] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15144] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15144] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15144] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15144] ioctl(4, LOOP_CLR_FD) = 0 [pid 15144] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15144] close(4) = 0 [pid 15144] close(3) = 0 [pid 15144] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15144] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15144] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15144] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15144] open("./bus", O_RDONLY) = 3 [pid 15144] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15144] exit_group(0) = ? [pid 15144] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15144, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15145 attached , child_tidptr=0x5555575235d0) = 15145 [pid 15145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15145] setpgid(0, 0) = 0 [pid 15145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15145] write(3, "1000", 4) = 4 [pid 15145] close(3) = 0 [pid 15145] memfd_create("syzkaller", 0) = 3 [pid 15145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15145] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15145] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15145] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15145] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15145] ioctl(4, LOOP_CLR_FD) = 0 [pid 15145] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15145] close(4) = 0 [pid 15145] close(3) = 0 [pid 15145] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15145] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15145] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15145] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15145] open("./bus", O_RDONLY) = 3 [pid 15145] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15145] exit_group(0) = ? [pid 15145] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15145, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15146 ./strace-static-x86_64: Process 15146 attached [pid 15146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15146] setpgid(0, 0) = 0 [pid 15146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15146] write(3, "1000", 4) = 4 [pid 15146] close(3) = 0 [pid 15146] memfd_create("syzkaller", 0) = 3 [pid 15146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15146] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15146] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15146] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15146] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15146] ioctl(4, LOOP_CLR_FD) = 0 [pid 15146] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15146] close(4) = 0 [pid 15146] close(3) = 0 [pid 15146] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15146] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15146] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15146] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15146] open("./bus", O_RDONLY) = 3 [pid 15146] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15146] exit_group(0) = ? [pid 15146] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15146, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15147 ./strace-static-x86_64: Process 15147 attached [pid 15147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15147] setpgid(0, 0) = 0 [pid 15147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15147] write(3, "1000", 4) = 4 [pid 15147] close(3) = 0 [pid 15147] memfd_create("syzkaller", 0) = 3 [pid 15147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15147] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15147] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15147] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15147] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15147] ioctl(4, LOOP_CLR_FD) = 0 [pid 15147] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15147] close(4) = 0 [pid 15147] close(3) = 0 [pid 15147] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15147] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15147] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15147] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15147] open("./bus", O_RDONLY) = 3 [pid 15147] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15147] exit_group(0) = ? [pid 15147] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15147, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15148 ./strace-static-x86_64: Process 15148 attached [pid 15148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15148] setpgid(0, 0) = 0 [pid 15148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15148] write(3, "1000", 4) = 4 [pid 15148] close(3) = 0 [pid 15148] memfd_create("syzkaller", 0) = 3 [pid 15148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15148] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15148] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15148] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15148] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15148] ioctl(4, LOOP_CLR_FD) = 0 [pid 15148] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15148] close(4) = 0 [pid 15148] close(3) = 0 [pid 15148] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15148] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15148] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15148] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15148] open("./bus", O_RDONLY) = 3 [pid 15148] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15148] exit_group(0) = ? [pid 15148] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15148, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15149 attached , child_tidptr=0x5555575235d0) = 15149 [pid 15149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15149] setpgid(0, 0) = 0 [pid 15149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15149] write(3, "1000", 4) = 4 [pid 15149] close(3) = 0 [pid 15149] memfd_create("syzkaller", 0) = 3 [pid 15149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15149] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15149] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15149] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15149] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15149] ioctl(4, LOOP_CLR_FD) = 0 [pid 15149] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15149] close(4) = 0 [pid 15149] close(3) = 0 [pid 15149] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15149] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15149] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15149] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15149] open("./bus", O_RDONLY) = 3 [pid 15149] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15149] exit_group(0) = ? [pid 15149] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15149, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15150 ./strace-static-x86_64: Process 15150 attached [pid 15150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15150] setpgid(0, 0) = 0 [pid 15150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15150] write(3, "1000", 4) = 4 [pid 15150] close(3) = 0 [pid 15150] memfd_create("syzkaller", 0) = 3 [pid 15150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15150] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15150] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15150] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15150] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15150] ioctl(4, LOOP_CLR_FD) = 0 [pid 15150] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15150] close(4) = 0 [pid 15150] close(3) = 0 [pid 15150] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15150] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15150] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15150] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15150] open("./bus", O_RDONLY) = 3 [pid 15150] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15150] exit_group(0) = ? [pid 15150] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15150, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15151 attached , child_tidptr=0x5555575235d0) = 15151 [pid 15151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15151] setpgid(0, 0) = 0 [pid 15151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15151] write(3, "1000", 4) = 4 [pid 15151] close(3) = 0 [pid 15151] memfd_create("syzkaller", 0) = 3 [pid 15151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15151] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15151] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15151] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15151] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15151] ioctl(4, LOOP_CLR_FD) = 0 [pid 15151] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15151] close(4) = 0 [pid 15151] close(3) = 0 [pid 15151] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15151] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15151] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15151] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15151] open("./bus", O_RDONLY) = 3 [pid 15151] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15151] exit_group(0) = ? [pid 15151] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15151, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15152 attached , child_tidptr=0x5555575235d0) = 15152 [pid 15152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15152] setpgid(0, 0) = 0 [pid 15152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15152] write(3, "1000", 4) = 4 [pid 15152] close(3) = 0 [pid 15152] memfd_create("syzkaller", 0) = 3 [pid 15152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15152] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15152] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15152] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15152] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15152] ioctl(4, LOOP_CLR_FD) = 0 [pid 15152] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15152] close(4) = 0 [pid 15152] close(3) = 0 [pid 15152] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15152] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15152] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15152] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15152] open("./bus", O_RDONLY) = 3 [pid 15152] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15152] exit_group(0) = ? [pid 15152] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15152, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15153 ./strace-static-x86_64: Process 15153 attached [pid 15153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15153] setpgid(0, 0) = 0 [pid 15153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15153] write(3, "1000", 4) = 4 [pid 15153] close(3) = 0 [pid 15153] memfd_create("syzkaller", 0) = 3 [pid 15153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15153] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15153] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15153] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15153] ioctl(4, LOOP_CLR_FD) = 0 [pid 15153] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15153] close(4) = 0 [pid 15153] close(3) = 0 [pid 15153] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15153] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15153] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15153] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15153] open("./bus", O_RDONLY) = 3 [pid 15153] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15153] exit_group(0) = ? [pid 15153] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15153, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15154 attached , child_tidptr=0x5555575235d0) = 15154 [pid 15154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15154] setpgid(0, 0) = 0 [pid 15154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15154] write(3, "1000", 4) = 4 [pid 15154] close(3) = 0 [pid 15154] memfd_create("syzkaller", 0) = 3 [pid 15154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15154] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15154] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15154] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15154] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15154] ioctl(4, LOOP_CLR_FD) = 0 [pid 15154] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15154] close(4) = 0 [pid 15154] close(3) = 0 [pid 15154] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15154] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15154] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15154] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15154] open("./bus", O_RDONLY) = 3 [pid 15154] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15154] exit_group(0) = ? [pid 15154] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15154, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15155 attached , child_tidptr=0x5555575235d0) = 15155 [pid 15155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15155] setpgid(0, 0) = 0 [pid 15155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15155] write(3, "1000", 4) = 4 [pid 15155] close(3) = 0 [pid 15155] memfd_create("syzkaller", 0) = 3 [pid 15155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15155] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15155] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15155] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15155] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15155] ioctl(4, LOOP_CLR_FD) = 0 [pid 15155] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15155] close(4) = 0 [pid 15155] close(3) = 0 [pid 15155] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15155] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15155] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15155] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15155] open("./bus", O_RDONLY) = 3 [pid 15155] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15155] exit_group(0) = ? [pid 15155] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15155, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15156 attached , child_tidptr=0x5555575235d0) = 15156 [pid 15156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15156] setpgid(0, 0) = 0 [pid 15156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15156] write(3, "1000", 4) = 4 [pid 15156] close(3) = 0 [pid 15156] memfd_create("syzkaller", 0) = 3 [pid 15156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15156] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15156] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15156] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15156] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15156] ioctl(4, LOOP_CLR_FD) = 0 [pid 15156] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15156] close(4) = 0 [pid 15156] close(3) = 0 [pid 15156] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15156] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15156] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15156] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15156] open("./bus", O_RDONLY) = 3 [pid 15156] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15156] exit_group(0) = ? [pid 15156] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15156, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15157 ./strace-static-x86_64: Process 15157 attached [pid 15157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15157] setpgid(0, 0) = 0 [pid 15157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15157] write(3, "1000", 4) = 4 [pid 15157] close(3) = 0 [pid 15157] memfd_create("syzkaller", 0) = 3 [pid 15157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15157] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15157] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15157] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15157] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15157] ioctl(4, LOOP_CLR_FD) = 0 [pid 15157] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15157] close(4) = 0 [pid 15157] close(3) = 0 [pid 15157] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15157] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15157] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15157] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15157] open("./bus", O_RDONLY) = 3 [pid 15157] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15157] exit_group(0) = ? [pid 15157] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15157, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15158 ./strace-static-x86_64: Process 15158 attached [pid 15158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15158] setpgid(0, 0) = 0 [pid 15158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15158] write(3, "1000", 4) = 4 [pid 15158] close(3) = 0 [pid 15158] memfd_create("syzkaller", 0) = 3 [pid 15158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15158] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15158] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15158] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15158] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15158] ioctl(4, LOOP_CLR_FD) = 0 [pid 15158] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15158] close(4) = 0 [pid 15158] close(3) = 0 [pid 15158] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15158] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15158] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15158] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15158] open("./bus", O_RDONLY) = 3 [pid 15158] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15158] exit_group(0) = ? [pid 15158] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15158, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15159 ./strace-static-x86_64: Process 15159 attached [pid 15159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15159] setpgid(0, 0) = 0 [pid 15159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15159] write(3, "1000", 4) = 4 [pid 15159] close(3) = 0 [pid 15159] memfd_create("syzkaller", 0) = 3 [pid 15159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15159] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15159] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15159] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15159] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15159] ioctl(4, LOOP_CLR_FD) = 0 [pid 15159] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15159] close(4) = 0 [pid 15159] close(3) = 0 [pid 15159] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15159] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15159] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15159] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15159] open("./bus", O_RDONLY) = 3 [pid 15159] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15159] exit_group(0) = ? [pid 15159] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15159, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15160 ./strace-static-x86_64: Process 15160 attached [pid 15160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15160] setpgid(0, 0) = 0 [pid 15160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15160] write(3, "1000", 4) = 4 [pid 15160] close(3) = 0 [pid 15160] memfd_create("syzkaller", 0) = 3 [pid 15160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15160] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15160] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15160] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15160] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15160] ioctl(4, LOOP_CLR_FD) = 0 [pid 15160] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15160] close(4) = 0 [pid 15160] close(3) = 0 [pid 15160] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15160] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15160] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15160] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15160] open("./bus", O_RDONLY) = 3 [pid 15160] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15160] exit_group(0) = ? [pid 15160] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15160, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15161 attached , child_tidptr=0x5555575235d0) = 15161 [pid 15161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15161] setpgid(0, 0) = 0 [pid 15161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15161] write(3, "1000", 4) = 4 [pid 15161] close(3) = 0 [pid 15161] memfd_create("syzkaller", 0) = 3 [pid 15161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15161] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15161] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15161] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15161] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15161] ioctl(4, LOOP_CLR_FD) = 0 [pid 15161] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15161] close(4) = 0 [pid 15161] close(3) = 0 [pid 15161] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15161] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15161] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15161] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15161] open("./bus", O_RDONLY) = 3 [pid 15161] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15161] exit_group(0) = ? [pid 15161] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15161, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15162 ./strace-static-x86_64: Process 15162 attached [pid 15162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15162] setpgid(0, 0) = 0 [pid 15162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15162] write(3, "1000", 4) = 4 [pid 15162] close(3) = 0 [pid 15162] memfd_create("syzkaller", 0) = 3 [pid 15162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15162] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15162] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15162] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15162] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15162] ioctl(4, LOOP_CLR_FD) = 0 [pid 15162] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15162] close(4) = 0 [pid 15162] close(3) = 0 [pid 15162] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15162] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15162] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15162] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15162] open("./bus", O_RDONLY) = 3 [pid 15162] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15162] exit_group(0) = ? [pid 15162] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15162, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15163 ./strace-static-x86_64: Process 15163 attached [pid 15163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15163] setpgid(0, 0) = 0 [pid 15163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15163] write(3, "1000", 4) = 4 [pid 15163] close(3) = 0 [pid 15163] memfd_create("syzkaller", 0) = 3 [pid 15163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15163] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15163] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15163] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15163] ioctl(4, LOOP_CLR_FD) = 0 [pid 15163] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15163] close(4) = 0 [pid 15163] close(3) = 0 [pid 15163] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15163] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15163] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15163] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15163] open("./bus", O_RDONLY) = 3 [pid 15163] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15163] exit_group(0) = ? [pid 15163] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15163, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15164 ./strace-static-x86_64: Process 15164 attached [pid 15164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15164] setpgid(0, 0) = 0 [pid 15164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15164] write(3, "1000", 4) = 4 [pid 15164] close(3) = 0 [pid 15164] memfd_create("syzkaller", 0) = 3 [pid 15164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15164] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15164] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15164] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15164] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15164] ioctl(4, LOOP_CLR_FD) = 0 [pid 15164] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15164] close(4) = 0 [pid 15164] close(3) = 0 [pid 15164] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15164] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15164] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15164] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15164] open("./bus", O_RDONLY) = 3 [pid 15164] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15164] exit_group(0) = ? [pid 15164] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15164, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15165 ./strace-static-x86_64: Process 15165 attached [pid 15165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15165] setpgid(0, 0) = 0 [pid 15165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15165] write(3, "1000", 4) = 4 [pid 15165] close(3) = 0 [pid 15165] memfd_create("syzkaller", 0) = 3 [pid 15165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15165] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15165] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15165] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15165] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15165] ioctl(4, LOOP_CLR_FD) = 0 [pid 15165] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15165] close(4) = 0 [pid 15165] close(3) = 0 [pid 15165] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15165] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15165] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15165] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15165] open("./bus", O_RDONLY) = 3 [pid 15165] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15165] exit_group(0) = ? [pid 15165] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15165, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15166 ./strace-static-x86_64: Process 15166 attached [pid 15166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15166] setpgid(0, 0) = 0 [pid 15166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15166] write(3, "1000", 4) = 4 [pid 15166] close(3) = 0 [pid 15166] memfd_create("syzkaller", 0) = 3 [pid 15166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15166] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15166] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15166] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15166] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15166] ioctl(4, LOOP_CLR_FD) = 0 [pid 15166] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15166] close(4) = 0 [pid 15166] close(3) = 0 [pid 15166] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15166] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15166] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15166] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15166] open("./bus", O_RDONLY) = 3 [pid 15166] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15166] exit_group(0) = ? [pid 15166] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15166, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15167 ./strace-static-x86_64: Process 15167 attached [pid 15167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15167] setpgid(0, 0) = 0 [pid 15167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15167] write(3, "1000", 4) = 4 [pid 15167] close(3) = 0 [pid 15167] memfd_create("syzkaller", 0) = 3 [pid 15167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15167] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15167] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15167] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15167] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15167] ioctl(4, LOOP_CLR_FD) = 0 [pid 15167] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15167] close(4) = 0 [pid 15167] close(3) = 0 [pid 15167] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15167] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15167] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15167] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15167] open("./bus", O_RDONLY) = 3 [pid 15167] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15167] exit_group(0) = ? [pid 15167] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15167, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15168 attached , child_tidptr=0x5555575235d0) = 15168 [pid 15168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15168] setpgid(0, 0) = 0 [pid 15168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15168] write(3, "1000", 4) = 4 [pid 15168] close(3) = 0 [pid 15168] memfd_create("syzkaller", 0) = 3 [pid 15168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15168] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15168] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15168] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15168] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15168] ioctl(4, LOOP_CLR_FD) = 0 [pid 15168] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15168] close(4) = 0 [pid 15168] close(3) = 0 [pid 15168] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15168] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15168] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15168] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15168] open("./bus", O_RDONLY) = 3 [pid 15168] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15168] exit_group(0) = ? [pid 15168] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15168, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15169 attached , child_tidptr=0x5555575235d0) = 15169 [pid 15169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15169] setpgid(0, 0) = 0 [pid 15169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15169] write(3, "1000", 4) = 4 [pid 15169] close(3) = 0 [pid 15169] memfd_create("syzkaller", 0) = 3 [pid 15169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15169] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15169] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15169] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15169] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15169] ioctl(4, LOOP_CLR_FD) = 0 [pid 15169] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15169] close(4) = 0 [pid 15169] close(3) = 0 [pid 15169] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15169] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15169] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15169] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15169] open("./bus", O_RDONLY) = 3 [pid 15169] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15169] exit_group(0) = ? [pid 15169] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15169, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15170 ./strace-static-x86_64: Process 15170 attached [pid 15170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15170] setpgid(0, 0) = 0 [pid 15170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15170] write(3, "1000", 4) = 4 [pid 15170] close(3) = 0 [pid 15170] memfd_create("syzkaller", 0) = 3 [pid 15170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15170] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15170] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15170] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15170] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15170] ioctl(4, LOOP_CLR_FD) = 0 [pid 15170] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15170] close(4) = 0 [pid 15170] close(3) = 0 [pid 15170] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15170] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15170] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15170] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15170] open("./bus", O_RDONLY) = 3 [pid 15170] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15170] exit_group(0) = ? [pid 15170] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15170, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15171 ./strace-static-x86_64: Process 15171 attached [pid 15171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15171] setpgid(0, 0) = 0 [pid 15171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15171] write(3, "1000", 4) = 4 [pid 15171] close(3) = 0 [pid 15171] memfd_create("syzkaller", 0) = 3 [pid 15171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15171] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15171] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15171] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15171] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15171] ioctl(4, LOOP_CLR_FD) = 0 [pid 15171] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15171] close(4) = 0 [pid 15171] close(3) = 0 [pid 15171] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15171] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15171] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15171] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15171] open("./bus", O_RDONLY) = 3 [pid 15171] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15171] exit_group(0) = ? [pid 15171] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15171, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15172 ./strace-static-x86_64: Process 15172 attached [pid 15172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15172] setpgid(0, 0) = 0 [pid 15172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15172] write(3, "1000", 4) = 4 [pid 15172] close(3) = 0 [pid 15172] memfd_create("syzkaller", 0) = 3 [pid 15172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15172] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15172] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15172] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15172] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15172] ioctl(4, LOOP_CLR_FD) = 0 [pid 15172] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15172] close(4) = 0 [pid 15172] close(3) = 0 [pid 15172] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15172] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15172] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15172] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15172] open("./bus", O_RDONLY) = 3 [pid 15172] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15172] exit_group(0) = ? [pid 15172] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15172, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15173 attached , child_tidptr=0x5555575235d0) = 15173 [pid 15173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15173] setpgid(0, 0) = 0 [pid 15173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15173] write(3, "1000", 4) = 4 [pid 15173] close(3) = 0 [pid 15173] memfd_create("syzkaller", 0) = 3 [pid 15173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15173] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15173] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15173] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15173] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15173] ioctl(4, LOOP_CLR_FD) = 0 [pid 15173] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15173] close(4) = 0 [pid 15173] close(3) = 0 [pid 15173] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15173] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15173] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15173] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15173] open("./bus", O_RDONLY) = 3 [pid 15173] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15173] exit_group(0) = ? [pid 15173] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15173, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15174 attached , child_tidptr=0x5555575235d0) = 15174 [pid 15174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15174] setpgid(0, 0) = 0 [pid 15174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15174] write(3, "1000", 4) = 4 [pid 15174] close(3) = 0 [pid 15174] memfd_create("syzkaller", 0) = 3 [pid 15174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15174] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15174] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15174] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15174] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15174] ioctl(4, LOOP_CLR_FD) = 0 [pid 15174] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15174] close(4) = 0 [pid 15174] close(3) = 0 [pid 15174] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15174] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15174] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15174] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15174] open("./bus", O_RDONLY) = 3 [pid 15174] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15174] exit_group(0) = ? [pid 15174] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15174, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15175 attached , child_tidptr=0x5555575235d0) = 15175 [pid 15175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15175] setpgid(0, 0) = 0 [pid 15175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15175] write(3, "1000", 4) = 4 [pid 15175] close(3) = 0 [pid 15175] memfd_create("syzkaller", 0) = 3 [pid 15175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15175] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15175] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15175] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15175] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15175] ioctl(4, LOOP_CLR_FD) = 0 [pid 15175] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15175] close(4) = 0 [pid 15175] close(3) = 0 [pid 15175] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15175] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15175] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15175] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15175] open("./bus", O_RDONLY) = 3 [pid 15175] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15175] exit_group(0) = ? [pid 15175] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15175, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15176 ./strace-static-x86_64: Process 15176 attached [pid 15176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15176] setpgid(0, 0) = 0 [pid 15176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15176] write(3, "1000", 4) = 4 [pid 15176] close(3) = 0 [pid 15176] memfd_create("syzkaller", 0) = 3 [pid 15176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15176] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15176] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15176] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15176] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15176] ioctl(4, LOOP_CLR_FD) = 0 [pid 15176] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15176] close(4) = 0 [pid 15176] close(3) = 0 [pid 15176] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15176] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15176] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15176] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15176] open("./bus", O_RDONLY) = 3 [pid 15176] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15176] exit_group(0) = ? [pid 15176] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15176, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15177 ./strace-static-x86_64: Process 15177 attached [pid 15177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15177] setpgid(0, 0) = 0 [pid 15177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15177] write(3, "1000", 4) = 4 [pid 15177] close(3) = 0 [pid 15177] memfd_create("syzkaller", 0) = 3 [pid 15177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15177] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15177] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15177] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15177] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15177] ioctl(4, LOOP_CLR_FD) = 0 [pid 15177] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15177] close(4) = 0 [pid 15177] close(3) = 0 [pid 15177] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15177] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15177] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15177] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15177] open("./bus", O_RDONLY) = 3 [pid 15177] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15177] exit_group(0) = ? [pid 15177] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15177, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15178 attached , child_tidptr=0x5555575235d0) = 15178 [pid 15178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15178] setpgid(0, 0) = 0 [pid 15178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15178] write(3, "1000", 4) = 4 [pid 15178] close(3) = 0 [pid 15178] memfd_create("syzkaller", 0) = 3 [pid 15178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15178] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15178] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15178] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15178] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15178] ioctl(4, LOOP_CLR_FD) = 0 [pid 15178] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15178] close(4) = 0 [pid 15178] close(3) = 0 [pid 15178] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15178] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15178] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15178] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15178] open("./bus", O_RDONLY) = 3 [pid 15178] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15178] exit_group(0) = ? [pid 15178] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15178, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15179 attached , child_tidptr=0x5555575235d0) = 15179 [pid 15179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15179] setpgid(0, 0) = 0 [pid 15179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15179] write(3, "1000", 4) = 4 [pid 15179] close(3) = 0 [pid 15179] memfd_create("syzkaller", 0) = 3 [pid 15179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15179] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15179] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15179] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15179] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15179] ioctl(4, LOOP_CLR_FD) = 0 [pid 15179] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15179] close(4) = 0 [pid 15179] close(3) = 0 [pid 15179] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15179] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15179] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15179] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15179] open("./bus", O_RDONLY) = 3 [pid 15179] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15179] exit_group(0) = ? [pid 15179] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15179, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15180 attached , child_tidptr=0x5555575235d0) = 15180 [pid 15180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15180] setpgid(0, 0) = 0 [pid 15180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15180] write(3, "1000", 4) = 4 [pid 15180] close(3) = 0 [pid 15180] memfd_create("syzkaller", 0) = 3 [pid 15180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15180] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15180] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15180] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15180] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15180] ioctl(4, LOOP_CLR_FD) = 0 [pid 15180] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15180] close(4) = 0 [pid 15180] close(3) = 0 [pid 15180] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15180] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15180] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15180] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15180] open("./bus", O_RDONLY) = 3 [pid 15180] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15180] exit_group(0) = ? [pid 15180] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15180, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15181 ./strace-static-x86_64: Process 15181 attached [pid 15181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15181] setpgid(0, 0) = 0 [pid 15181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15181] write(3, "1000", 4) = 4 [pid 15181] close(3) = 0 [pid 15181] memfd_create("syzkaller", 0) = 3 [pid 15181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15181] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15181] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15181] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15181] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15181] ioctl(4, LOOP_CLR_FD) = 0 [pid 15181] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15181] close(4) = 0 [pid 15181] close(3) = 0 [pid 15181] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15181] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15181] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15181] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15181] open("./bus", O_RDONLY) = 3 [pid 15181] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15181] exit_group(0) = ? [pid 15181] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15181, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15182 attached , child_tidptr=0x5555575235d0) = 15182 [pid 15182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15182] setpgid(0, 0) = 0 [pid 15182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15182] write(3, "1000", 4) = 4 [pid 15182] close(3) = 0 [pid 15182] memfd_create("syzkaller", 0) = 3 [pid 15182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15182] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15182] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15182] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15182] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15182] ioctl(4, LOOP_CLR_FD) = 0 [pid 15182] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15182] close(4) = 0 [pid 15182] close(3) = 0 [pid 15182] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15182] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15182] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15182] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15182] open("./bus", O_RDONLY) = 3 [pid 15182] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15182] exit_group(0) = ? [pid 15182] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15182, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15183 ./strace-static-x86_64: Process 15183 attached [pid 15183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15183] setpgid(0, 0) = 0 [pid 15183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15183] write(3, "1000", 4) = 4 [pid 15183] close(3) = 0 [pid 15183] memfd_create("syzkaller", 0) = 3 [pid 15183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15183] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15183] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15183] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15183] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15183] ioctl(4, LOOP_CLR_FD) = 0 [pid 15183] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15183] close(4) = 0 [pid 15183] close(3) = 0 [pid 15183] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15183] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15183] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15183] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15183] open("./bus", O_RDONLY) = 3 [pid 15183] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15183] exit_group(0) = ? [pid 15183] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15183, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15184 attached , child_tidptr=0x5555575235d0) = 15184 [pid 15184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15184] setpgid(0, 0) = 0 [pid 15184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15184] write(3, "1000", 4) = 4 [pid 15184] close(3) = 0 [pid 15184] memfd_create("syzkaller", 0) = 3 [pid 15184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15184] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15184] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15184] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15184] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15184] ioctl(4, LOOP_CLR_FD) = 0 [pid 15184] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15184] close(4) = 0 [pid 15184] close(3) = 0 [pid 15184] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15184] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15184] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15184] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15184] open("./bus", O_RDONLY) = 3 [pid 15184] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15184] exit_group(0) = ? [pid 15184] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15184, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15185 ./strace-static-x86_64: Process 15185 attached [pid 15185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15185] setpgid(0, 0) = 0 [pid 15185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15185] write(3, "1000", 4) = 4 [pid 15185] close(3) = 0 [pid 15185] memfd_create("syzkaller", 0) = 3 [pid 15185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15185] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15185] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15185] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15185] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15185] ioctl(4, LOOP_CLR_FD) = 0 [pid 15185] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15185] close(4) = 0 [pid 15185] close(3) = 0 [pid 15185] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15185] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15185] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15185] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15185] open("./bus", O_RDONLY) = 3 [pid 15185] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15185] exit_group(0) = ? [pid 15185] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15185, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15186 ./strace-static-x86_64: Process 15186 attached [pid 15186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15186] setpgid(0, 0) = 0 [pid 15186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15186] write(3, "1000", 4) = 4 [pid 15186] close(3) = 0 [pid 15186] memfd_create("syzkaller", 0) = 3 [pid 15186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15186] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15186] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15186] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15186] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15186] ioctl(4, LOOP_CLR_FD) = 0 [pid 15186] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15186] close(4) = 0 [pid 15186] close(3) = 0 [pid 15186] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15186] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15186] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15186] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15186] open("./bus", O_RDONLY) = 3 [pid 15186] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15186] exit_group(0) = ? [pid 15186] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15186, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15187 attached , child_tidptr=0x5555575235d0) = 15187 [pid 15187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15187] setpgid(0, 0) = 0 [pid 15187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15187] write(3, "1000", 4) = 4 [pid 15187] close(3) = 0 [pid 15187] memfd_create("syzkaller", 0) = 3 [pid 15187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15187] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15187] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15187] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15187] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15187] ioctl(4, LOOP_CLR_FD) = 0 [pid 15187] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15187] close(4) = 0 [pid 15187] close(3) = 0 [pid 15187] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15187] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15187] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15187] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15187] open("./bus", O_RDONLY) = 3 [pid 15187] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15187] exit_group(0) = ? [pid 15187] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15187, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15188 attached , child_tidptr=0x5555575235d0) = 15188 [pid 15188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15188] setpgid(0, 0) = 0 [pid 15188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15188] write(3, "1000", 4) = 4 [pid 15188] close(3) = 0 [pid 15188] memfd_create("syzkaller", 0) = 3 [pid 15188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15188] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15188] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15188] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15188] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15188] ioctl(4, LOOP_CLR_FD) = 0 [pid 15188] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15188] close(4) = 0 [pid 15188] close(3) = 0 [pid 15188] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15188] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15188] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15188] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15188] open("./bus", O_RDONLY) = 3 [pid 15188] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15188] exit_group(0) = ? [pid 15188] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15188, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15189 ./strace-static-x86_64: Process 15189 attached [pid 15189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15189] setpgid(0, 0) = 0 [pid 15189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15189] write(3, "1000", 4) = 4 [pid 15189] close(3) = 0 [pid 15189] memfd_create("syzkaller", 0) = 3 [pid 15189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15189] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15189] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15189] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15189] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15189] ioctl(4, LOOP_CLR_FD) = 0 [pid 15189] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15189] close(4) = 0 [pid 15189] close(3) = 0 [pid 15189] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15189] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15189] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15189] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15189] open("./bus", O_RDONLY) = 3 [pid 15189] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15189] exit_group(0) = ? [pid 15189] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15189, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15190 ./strace-static-x86_64: Process 15190 attached [pid 15190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15190] setpgid(0, 0) = 0 [pid 15190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15190] write(3, "1000", 4) = 4 [pid 15190] close(3) = 0 [pid 15190] memfd_create("syzkaller", 0) = 3 [pid 15190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15190] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15190] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15190] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15190] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15190] ioctl(4, LOOP_CLR_FD) = 0 [pid 15190] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15190] close(4) = 0 [pid 15190] close(3) = 0 [pid 15190] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15190] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15190] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15190] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15190] open("./bus", O_RDONLY) = 3 [pid 15190] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15190] exit_group(0) = ? [pid 15190] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15190, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15191 ./strace-static-x86_64: Process 15191 attached [pid 15191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15191] setpgid(0, 0) = 0 [pid 15191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15191] write(3, "1000", 4) = 4 [pid 15191] close(3) = 0 [pid 15191] memfd_create("syzkaller", 0) = 3 [pid 15191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15191] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15191] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15191] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15191] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15191] ioctl(4, LOOP_CLR_FD) = 0 [pid 15191] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15191] close(4) = 0 [pid 15191] close(3) = 0 [pid 15191] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15191] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15191] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15191] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15191] open("./bus", O_RDONLY) = 3 [pid 15191] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15191] exit_group(0) = ? [pid 15191] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15191, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15192 ./strace-static-x86_64: Process 15192 attached [pid 15192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15192] setpgid(0, 0) = 0 [pid 15192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15192] write(3, "1000", 4) = 4 [pid 15192] close(3) = 0 [pid 15192] memfd_create("syzkaller", 0) = 3 [pid 15192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15192] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15192] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15192] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15192] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15192] ioctl(4, LOOP_CLR_FD) = 0 [pid 15192] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15192] close(4) = 0 [pid 15192] close(3) = 0 [pid 15192] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15192] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15192] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15192] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15192] open("./bus", O_RDONLY) = 3 [pid 15192] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15192] exit_group(0) = ? [pid 15192] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15192, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15193 ./strace-static-x86_64: Process 15193 attached [pid 15193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15193] setpgid(0, 0) = 0 [pid 15193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15193] write(3, "1000", 4) = 4 [pid 15193] close(3) = 0 [pid 15193] memfd_create("syzkaller", 0) = 3 [pid 15193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15193] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15193] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15193] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15193] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15193] ioctl(4, LOOP_CLR_FD) = 0 [pid 15193] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15193] close(4) = 0 [pid 15193] close(3) = 0 [pid 15193] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15193] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15193] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15193] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15193] open("./bus", O_RDONLY) = 3 [pid 15193] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15193] exit_group(0) = ? [pid 15193] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15193, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15194 attached , child_tidptr=0x5555575235d0) = 15194 [pid 15194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15194] setpgid(0, 0) = 0 [pid 15194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15194] write(3, "1000", 4) = 4 [pid 15194] close(3) = 0 [pid 15194] memfd_create("syzkaller", 0) = 3 [pid 15194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15194] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15194] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15194] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15194] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15194] ioctl(4, LOOP_CLR_FD) = 0 [pid 15194] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15194] close(4) = 0 [pid 15194] close(3) = 0 [pid 15194] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15194] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15194] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15194] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15194] open("./bus", O_RDONLY) = 3 [pid 15194] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15194] exit_group(0) = ? [pid 15194] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15194, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15195 attached , child_tidptr=0x5555575235d0) = 15195 [pid 15195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15195] setpgid(0, 0) = 0 [pid 15195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15195] write(3, "1000", 4) = 4 [pid 15195] close(3) = 0 [pid 15195] memfd_create("syzkaller", 0) = 3 [pid 15195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15195] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15195] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15195] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15195] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15195] ioctl(4, LOOP_CLR_FD) = 0 [pid 15195] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15195] close(4) = 0 [pid 15195] close(3) = 0 [pid 15195] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15195] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15195] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15195] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15195] open("./bus", O_RDONLY) = 3 [pid 15195] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15195] exit_group(0) = ? [pid 15195] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15195, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15196 attached , child_tidptr=0x5555575235d0) = 15196 [pid 15196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15196] setpgid(0, 0) = 0 [pid 15196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15196] write(3, "1000", 4) = 4 [pid 15196] close(3) = 0 [pid 15196] memfd_create("syzkaller", 0) = 3 [pid 15196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15196] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15196] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15196] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15196] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15196] ioctl(4, LOOP_CLR_FD) = 0 [pid 15196] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15196] close(4) = 0 [pid 15196] close(3) = 0 [pid 15196] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15196] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15196] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15196] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15196] open("./bus", O_RDONLY) = 3 [pid 15196] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15196] exit_group(0) = ? [pid 15196] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15196, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15197 ./strace-static-x86_64: Process 15197 attached [pid 15197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15197] setpgid(0, 0) = 0 [pid 15197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15197] write(3, "1000", 4) = 4 [pid 15197] close(3) = 0 [pid 15197] memfd_create("syzkaller", 0) = 3 [pid 15197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15197] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15197] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15197] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15197] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15197] ioctl(4, LOOP_CLR_FD) = 0 [pid 15197] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15197] close(4) = 0 [pid 15197] close(3) = 0 [pid 15197] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15197] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15197] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15197] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15197] open("./bus", O_RDONLY) = 3 [pid 15197] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15197] exit_group(0) = ? [pid 15197] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15197, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15198 ./strace-static-x86_64: Process 15198 attached [pid 15198] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15198] setpgid(0, 0) = 0 [pid 15198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15198] write(3, "1000", 4) = 4 [pid 15198] close(3) = 0 [pid 15198] memfd_create("syzkaller", 0) = 3 [pid 15198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15198] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15198] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15198] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15198] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15198] ioctl(4, LOOP_CLR_FD) = 0 [pid 15198] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15198] close(4) = 0 [pid 15198] close(3) = 0 [pid 15198] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15198] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15198] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15198] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15198] open("./bus", O_RDONLY) = 3 [pid 15198] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15198] exit_group(0) = ? [pid 15198] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15198, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15199 attached , child_tidptr=0x5555575235d0) = 15199 [pid 15199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15199] setpgid(0, 0) = 0 [pid 15199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15199] write(3, "1000", 4) = 4 [pid 15199] close(3) = 0 [pid 15199] memfd_create("syzkaller", 0) = 3 [pid 15199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15199] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15199] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15199] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15199] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15199] ioctl(4, LOOP_CLR_FD) = 0 [pid 15199] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15199] close(4) = 0 [pid 15199] close(3) = 0 [pid 15199] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15199] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15199] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15199] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15199] open("./bus", O_RDONLY) = 3 [pid 15199] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15199] exit_group(0) = ? [pid 15199] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15199, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15200 attached , child_tidptr=0x5555575235d0) = 15200 [pid 15200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15200] setpgid(0, 0) = 0 [pid 15200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15200] write(3, "1000", 4) = 4 [pid 15200] close(3) = 0 [pid 15200] memfd_create("syzkaller", 0) = 3 [pid 15200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15200] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15200] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15200] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15200] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15200] ioctl(4, LOOP_CLR_FD) = 0 [pid 15200] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15200] close(4) = 0 [pid 15200] close(3) = 0 [pid 15200] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15200] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15200] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15200] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15200] open("./bus", O_RDONLY) = 3 [pid 15200] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15200] exit_group(0) = ? [pid 15200] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15200, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15201 attached , child_tidptr=0x5555575235d0) = 15201 [pid 15201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15201] setpgid(0, 0) = 0 [pid 15201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15201] write(3, "1000", 4) = 4 [pid 15201] close(3) = 0 [pid 15201] memfd_create("syzkaller", 0) = 3 [pid 15201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15201] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15201] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15201] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15201] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15201] ioctl(4, LOOP_CLR_FD) = 0 [pid 15201] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15201] close(4) = 0 [pid 15201] close(3) = 0 [pid 15201] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15201] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15201] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15201] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15201] open("./bus", O_RDONLY) = 3 [pid 15201] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15201] exit_group(0) = ? [pid 15201] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15201, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15202 attached , child_tidptr=0x5555575235d0) = 15202 [pid 15202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15202] setpgid(0, 0) = 0 [pid 15202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15202] write(3, "1000", 4) = 4 [pid 15202] close(3) = 0 [pid 15202] memfd_create("syzkaller", 0) = 3 [pid 15202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15202] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15202] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15202] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15202] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15202] ioctl(4, LOOP_CLR_FD) = 0 [pid 15202] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15202] close(4) = 0 [pid 15202] close(3) = 0 [pid 15202] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15202] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15202] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15202] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15202] open("./bus", O_RDONLY) = 3 [pid 15202] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15202] exit_group(0) = ? [pid 15202] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15202, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15203 ./strace-static-x86_64: Process 15203 attached [pid 15203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15203] setpgid(0, 0) = 0 [pid 15203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15203] write(3, "1000", 4) = 4 [pid 15203] close(3) = 0 [pid 15203] memfd_create("syzkaller", 0) = 3 [pid 15203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15203] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15203] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15203] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15203] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15203] ioctl(4, LOOP_CLR_FD) = 0 [pid 15203] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15203] close(4) = 0 [pid 15203] close(3) = 0 [pid 15203] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15203] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15203] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15203] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15203] open("./bus", O_RDONLY) = 3 [pid 15203] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15203] exit_group(0) = ? [pid 15203] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15203, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15204 ./strace-static-x86_64: Process 15204 attached [pid 15204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15204] setpgid(0, 0) = 0 [pid 15204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15204] write(3, "1000", 4) = 4 [pid 15204] close(3) = 0 [pid 15204] memfd_create("syzkaller", 0) = 3 [pid 15204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15204] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15204] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15204] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15204] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15204] ioctl(4, LOOP_CLR_FD) = 0 [pid 15204] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15204] close(4) = 0 [pid 15204] close(3) = 0 [pid 15204] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15204] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15204] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15204] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15204] open("./bus", O_RDONLY) = 3 [pid 15204] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15204] exit_group(0) = ? [pid 15204] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15204, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15205 attached , child_tidptr=0x5555575235d0) = 15205 [pid 15205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15205] setpgid(0, 0) = 0 [pid 15205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15205] write(3, "1000", 4) = 4 [pid 15205] close(3) = 0 [pid 15205] memfd_create("syzkaller", 0) = 3 [pid 15205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15205] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15205] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15205] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15205] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15205] ioctl(4, LOOP_CLR_FD) = 0 [pid 15205] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15205] close(4) = 0 [pid 15205] close(3) = 0 [pid 15205] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15205] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15205] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15205] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15205] open("./bus", O_RDONLY) = 3 [pid 15205] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15205] exit_group(0) = ? [pid 15205] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15205, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15206 attached , child_tidptr=0x5555575235d0) = 15206 [pid 15206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15206] setpgid(0, 0) = 0 [pid 15206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15206] write(3, "1000", 4) = 4 [pid 15206] close(3) = 0 [pid 15206] memfd_create("syzkaller", 0) = 3 [pid 15206] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15206] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15206] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15206] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15206] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15206] ioctl(4, LOOP_CLR_FD) = 0 [pid 15206] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15206] close(4) = 0 [pid 15206] close(3) = 0 [pid 15206] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15206] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15206] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15206] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15206] open("./bus", O_RDONLY) = 3 [pid 15206] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15206] exit_group(0) = ? [pid 15206] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15206, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15207 attached , child_tidptr=0x5555575235d0) = 15207 [pid 15207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15207] setpgid(0, 0) = 0 [pid 15207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15207] write(3, "1000", 4) = 4 [pid 15207] close(3) = 0 [pid 15207] memfd_create("syzkaller", 0) = 3 [pid 15207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15207] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15207] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15207] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15207] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15207] ioctl(4, LOOP_CLR_FD) = 0 [pid 15207] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15207] close(4) = 0 [pid 15207] close(3) = 0 [pid 15207] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15207] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15207] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15207] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15207] open("./bus", O_RDONLY) = 3 [pid 15207] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15207] exit_group(0) = ? [pid 15207] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15207, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15208 ./strace-static-x86_64: Process 15208 attached [pid 15208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15208] setpgid(0, 0) = 0 [pid 15208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15208] write(3, "1000", 4) = 4 [pid 15208] close(3) = 0 [pid 15208] memfd_create("syzkaller", 0) = 3 [pid 15208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15208] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15208] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15208] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15208] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15208] ioctl(4, LOOP_CLR_FD) = 0 [pid 15208] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15208] close(4) = 0 [pid 15208] close(3) = 0 [pid 15208] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15208] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15208] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15208] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15208] open("./bus", O_RDONLY) = 3 [pid 15208] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15208] exit_group(0) = ? [pid 15208] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15208, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15209 ./strace-static-x86_64: Process 15209 attached [pid 15209] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15209] setpgid(0, 0) = 0 [pid 15209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15209] write(3, "1000", 4) = 4 [pid 15209] close(3) = 0 [pid 15209] memfd_create("syzkaller", 0) = 3 [pid 15209] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15209] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15209] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15209] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15209] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15209] ioctl(4, LOOP_CLR_FD) = 0 [pid 15209] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15209] close(4) = 0 [pid 15209] close(3) = 0 [pid 15209] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15209] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15209] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15209] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15209] open("./bus", O_RDONLY) = 3 [pid 15209] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15209] exit_group(0) = ? [pid 15209] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15209, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15210 ./strace-static-x86_64: Process 15210 attached [pid 15210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15210] setpgid(0, 0) = 0 [pid 15210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15210] write(3, "1000", 4) = 4 [pid 15210] close(3) = 0 [pid 15210] memfd_create("syzkaller", 0) = 3 [pid 15210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15210] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15210] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15210] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15210] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15210] ioctl(4, LOOP_CLR_FD) = 0 [pid 15210] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15210] close(4) = 0 [pid 15210] close(3) = 0 [pid 15210] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15210] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15210] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15210] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15210] open("./bus", O_RDONLY) = 3 [pid 15210] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15210] exit_group(0) = ? [pid 15210] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15210, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15211 attached , child_tidptr=0x5555575235d0) = 15211 [pid 15211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15211] setpgid(0, 0) = 0 [pid 15211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15211] write(3, "1000", 4) = 4 [pid 15211] close(3) = 0 [pid 15211] memfd_create("syzkaller", 0) = 3 [pid 15211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15211] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15211] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15211] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15211] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15211] ioctl(4, LOOP_CLR_FD) = 0 [pid 15211] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15211] close(4) = 0 [pid 15211] close(3) = 0 [pid 15211] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15211] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15211] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15211] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15211] open("./bus", O_RDONLY) = 3 [pid 15211] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15211] exit_group(0) = ? [pid 15211] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15211, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15212 attached , child_tidptr=0x5555575235d0) = 15212 [pid 15212] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15212] setpgid(0, 0) = 0 [pid 15212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15212] write(3, "1000", 4) = 4 [pid 15212] close(3) = 0 [pid 15212] memfd_create("syzkaller", 0) = 3 [pid 15212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15212] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15212] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15212] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15212] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15212] ioctl(4, LOOP_CLR_FD) = 0 [pid 15212] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15212] close(4) = 0 [pid 15212] close(3) = 0 [pid 15212] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15212] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15212] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15212] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15212] open("./bus", O_RDONLY) = 3 [pid 15212] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15212] exit_group(0) = ? [pid 15212] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15212, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15213 ./strace-static-x86_64: Process 15213 attached [pid 15213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15213] setpgid(0, 0) = 0 [pid 15213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15213] write(3, "1000", 4) = 4 [pid 15213] close(3) = 0 [pid 15213] memfd_create("syzkaller", 0) = 3 [pid 15213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15213] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15213] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15213] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15213] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15213] ioctl(4, LOOP_CLR_FD) = 0 [pid 15213] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15213] close(4) = 0 [pid 15213] close(3) = 0 [pid 15213] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15213] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15213] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15213] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15213] open("./bus", O_RDONLY) = 3 [pid 15213] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15213] exit_group(0) = ? [pid 15213] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15213, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15214 ./strace-static-x86_64: Process 15214 attached [pid 15214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15214] setpgid(0, 0) = 0 [pid 15214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15214] write(3, "1000", 4) = 4 [pid 15214] close(3) = 0 [pid 15214] memfd_create("syzkaller", 0) = 3 [pid 15214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15214] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15214] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15214] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15214] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15214] ioctl(4, LOOP_CLR_FD) = 0 [pid 15214] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15214] close(4) = 0 [pid 15214] close(3) = 0 [pid 15214] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15214] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15214] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15214] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15214] open("./bus", O_RDONLY) = 3 [pid 15214] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15214] exit_group(0) = ? [pid 15214] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15214, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15215 attached , child_tidptr=0x5555575235d0) = 15215 [pid 15215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15215] setpgid(0, 0) = 0 [pid 15215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15215] write(3, "1000", 4) = 4 [pid 15215] close(3) = 0 [pid 15215] memfd_create("syzkaller", 0) = 3 [pid 15215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15215] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15215] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15215] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15215] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15215] ioctl(4, LOOP_CLR_FD) = 0 [pid 15215] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15215] close(4) = 0 [pid 15215] close(3) = 0 [pid 15215] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15215] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15215] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15215] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15215] open("./bus", O_RDONLY) = 3 [pid 15215] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15215] exit_group(0) = ? [pid 15215] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15215, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15216 ./strace-static-x86_64: Process 15216 attached [pid 15216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15216] setpgid(0, 0) = 0 [pid 15216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15216] write(3, "1000", 4) = 4 [pid 15216] close(3) = 0 [pid 15216] memfd_create("syzkaller", 0) = 3 [pid 15216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15216] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15216] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15216] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15216] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15216] ioctl(4, LOOP_CLR_FD) = 0 [pid 15216] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15216] close(4) = 0 [pid 15216] close(3) = 0 [pid 15216] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15216] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15216] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15216] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15216] open("./bus", O_RDONLY) = 3 [pid 15216] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15216] exit_group(0) = ? [pid 15216] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15216, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15217 ./strace-static-x86_64: Process 15217 attached [pid 15217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15217] setpgid(0, 0) = 0 [pid 15217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15217] write(3, "1000", 4) = 4 [pid 15217] close(3) = 0 [pid 15217] memfd_create("syzkaller", 0) = 3 [pid 15217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15217] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15217] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15217] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15217] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15217] ioctl(4, LOOP_CLR_FD) = 0 [pid 15217] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15217] close(4) = 0 [pid 15217] close(3) = 0 [pid 15217] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15217] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15217] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15217] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15217] open("./bus", O_RDONLY) = 3 [pid 15217] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15217] exit_group(0) = ? [pid 15217] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15217, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15218 attached , child_tidptr=0x5555575235d0) = 15218 [pid 15218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15218] setpgid(0, 0) = 0 [pid 15218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15218] write(3, "1000", 4) = 4 [pid 15218] close(3) = 0 [pid 15218] memfd_create("syzkaller", 0) = 3 [pid 15218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15218] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15218] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15218] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15218] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15218] ioctl(4, LOOP_CLR_FD) = 0 [pid 15218] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15218] close(4) = 0 [pid 15218] close(3) = 0 [pid 15218] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15218] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15218] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15218] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15218] open("./bus", O_RDONLY) = 3 [pid 15218] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15218] exit_group(0) = ? [pid 15218] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15218, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15219 attached , child_tidptr=0x5555575235d0) = 15219 [pid 15219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15219] setpgid(0, 0) = 0 [pid 15219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15219] write(3, "1000", 4) = 4 [pid 15219] close(3) = 0 [pid 15219] memfd_create("syzkaller", 0) = 3 [pid 15219] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15219] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15219] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15219] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15219] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15219] ioctl(4, LOOP_CLR_FD) = 0 [pid 15219] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15219] close(4) = 0 [pid 15219] close(3) = 0 [pid 15219] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15219] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15219] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15219] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15219] open("./bus", O_RDONLY) = 3 [pid 15219] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15219] exit_group(0) = ? [pid 15219] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15219, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15220 attached , child_tidptr=0x5555575235d0) = 15220 [pid 15220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15220] setpgid(0, 0) = 0 [pid 15220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15220] write(3, "1000", 4) = 4 [pid 15220] close(3) = 0 [pid 15220] memfd_create("syzkaller", 0) = 3 [pid 15220] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15220] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15220] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15220] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15220] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15220] ioctl(4, LOOP_CLR_FD) = 0 [pid 15220] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15220] close(4) = 0 [pid 15220] close(3) = 0 [pid 15220] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15220] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15220] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15220] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15220] open("./bus", O_RDONLY) = 3 [pid 15220] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15220] exit_group(0) = ? [pid 15220] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15220, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15221 ./strace-static-x86_64: Process 15221 attached [pid 15221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15221] setpgid(0, 0) = 0 [pid 15221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15221] write(3, "1000", 4) = 4 [pid 15221] close(3) = 0 [pid 15221] memfd_create("syzkaller", 0) = 3 [pid 15221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15221] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15221] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15221] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15221] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15221] ioctl(4, LOOP_CLR_FD) = 0 [pid 15221] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15221] close(4) = 0 [pid 15221] close(3) = 0 [pid 15221] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15221] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15221] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15221] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15221] open("./bus", O_RDONLY) = 3 [pid 15221] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15221] exit_group(0) = ? [pid 15221] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15221, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15222 attached , child_tidptr=0x5555575235d0) = 15222 [pid 15222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15222] setpgid(0, 0) = 0 [pid 15222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15222] write(3, "1000", 4) = 4 [pid 15222] close(3) = 0 [pid 15222] memfd_create("syzkaller", 0) = 3 [pid 15222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15222] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15222] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15222] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15222] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15222] ioctl(4, LOOP_CLR_FD) = 0 [pid 15222] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15222] close(4) = 0 [pid 15222] close(3) = 0 [pid 15222] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15222] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15222] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15222] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15222] open("./bus", O_RDONLY) = 3 [pid 15222] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15222] exit_group(0) = ? [pid 15222] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15222, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15223 attached , child_tidptr=0x5555575235d0) = 15223 [pid 15223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15223] setpgid(0, 0) = 0 [pid 15223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15223] write(3, "1000", 4) = 4 [pid 15223] close(3) = 0 [pid 15223] memfd_create("syzkaller", 0) = 3 [pid 15223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15223] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15223] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15223] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15223] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15223] ioctl(4, LOOP_CLR_FD) = 0 [pid 15223] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15223] close(4) = 0 [pid 15223] close(3) = 0 [pid 15223] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15223] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15223] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15223] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15223] open("./bus", O_RDONLY) = 3 [pid 15223] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15223] exit_group(0) = ? [pid 15223] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15223, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15224 attached , child_tidptr=0x5555575235d0) = 15224 [pid 15224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15224] setpgid(0, 0) = 0 [pid 15224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15224] write(3, "1000", 4) = 4 [pid 15224] close(3) = 0 [pid 15224] memfd_create("syzkaller", 0) = 3 [pid 15224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15224] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15224] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15224] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15224] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15224] ioctl(4, LOOP_CLR_FD) = 0 [pid 15224] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15224] close(4) = 0 [pid 15224] close(3) = 0 [pid 15224] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15224] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15224] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15224] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15224] open("./bus", O_RDONLY) = 3 [pid 15224] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15224] exit_group(0) = ? [pid 15224] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15224, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15225 attached , child_tidptr=0x5555575235d0) = 15225 [pid 15225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15225] setpgid(0, 0) = 0 [pid 15225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15225] write(3, "1000", 4) = 4 [pid 15225] close(3) = 0 [pid 15225] memfd_create("syzkaller", 0) = 3 [pid 15225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15225] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15225] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15225] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15225] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15225] ioctl(4, LOOP_CLR_FD) = 0 [pid 15225] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15225] close(4) = 0 [pid 15225] close(3) = 0 [pid 15225] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15225] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15225] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15225] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15225] open("./bus", O_RDONLY) = 3 [pid 15225] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15225] exit_group(0) = ? [pid 15225] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15225, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15226 ./strace-static-x86_64: Process 15226 attached [pid 15226] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15226] setpgid(0, 0) = 0 [pid 15226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15226] write(3, "1000", 4) = 4 [pid 15226] close(3) = 0 [pid 15226] memfd_create("syzkaller", 0) = 3 [pid 15226] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15226] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15226] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15226] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15226] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15226] ioctl(4, LOOP_CLR_FD) = 0 [pid 15226] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15226] close(4) = 0 [pid 15226] close(3) = 0 [pid 15226] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15226] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15226] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15226] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15226] open("./bus", O_RDONLY) = 3 [pid 15226] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15226] exit_group(0) = ? [pid 15226] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15226, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15227 ./strace-static-x86_64: Process 15227 attached [pid 15227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15227] setpgid(0, 0) = 0 [pid 15227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15227] write(3, "1000", 4) = 4 [pid 15227] close(3) = 0 [pid 15227] memfd_create("syzkaller", 0) = 3 [pid 15227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15227] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15227] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15227] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15227] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15227] ioctl(4, LOOP_CLR_FD) = 0 [pid 15227] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15227] close(4) = 0 [pid 15227] close(3) = 0 [pid 15227] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15227] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15227] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15227] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15227] open("./bus", O_RDONLY) = 3 [pid 15227] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15227] exit_group(0) = ? [pid 15227] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15227, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15228 ./strace-static-x86_64: Process 15228 attached [pid 15228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15228] setpgid(0, 0) = 0 [pid 15228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15228] write(3, "1000", 4) = 4 [pid 15228] close(3) = 0 [pid 15228] memfd_create("syzkaller", 0) = 3 [pid 15228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15228] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15228] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15228] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15228] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15228] ioctl(4, LOOP_CLR_FD) = 0 [pid 15228] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15228] close(4) = 0 [pid 15228] close(3) = 0 [pid 15228] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15228] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15228] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15228] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15228] open("./bus", O_RDONLY) = 3 [pid 15228] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15228] exit_group(0) = ? [pid 15228] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15228, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15229 ./strace-static-x86_64: Process 15229 attached [pid 15229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15229] setpgid(0, 0) = 0 [pid 15229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15229] write(3, "1000", 4) = 4 [pid 15229] close(3) = 0 [pid 15229] memfd_create("syzkaller", 0) = 3 [pid 15229] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15229] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15229] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15229] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15229] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15229] ioctl(4, LOOP_CLR_FD) = 0 [pid 15229] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15229] close(4) = 0 [pid 15229] close(3) = 0 [pid 15229] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15229] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15229] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15229] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15229] open("./bus", O_RDONLY) = 3 [pid 15229] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15229] exit_group(0) = ? [pid 15229] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15229, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15230 ./strace-static-x86_64: Process 15230 attached [pid 15230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15230] setpgid(0, 0) = 0 [pid 15230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15230] write(3, "1000", 4) = 4 [pid 15230] close(3) = 0 [pid 15230] memfd_create("syzkaller", 0) = 3 [pid 15230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15230] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15230] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15230] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15230] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15230] ioctl(4, LOOP_CLR_FD) = 0 [pid 15230] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15230] close(4) = 0 [pid 15230] close(3) = 0 [pid 15230] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15230] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15230] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15230] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15230] open("./bus", O_RDONLY) = 3 [pid 15230] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15230] exit_group(0) = ? [pid 15230] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15230, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15231 ./strace-static-x86_64: Process 15231 attached [pid 15231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15231] setpgid(0, 0) = 0 [pid 15231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15231] write(3, "1000", 4) = 4 [pid 15231] close(3) = 0 [pid 15231] memfd_create("syzkaller", 0) = 3 [pid 15231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15231] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15231] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15231] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15231] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15231] ioctl(4, LOOP_CLR_FD) = 0 [pid 15231] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15231] close(4) = 0 [pid 15231] close(3) = 0 [pid 15231] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15231] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15231] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15231] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15231] open("./bus", O_RDONLY) = 3 [pid 15231] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15231] exit_group(0) = ? [pid 15231] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15231, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15232 ./strace-static-x86_64: Process 15232 attached [pid 15232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15232] setpgid(0, 0) = 0 [pid 15232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15232] write(3, "1000", 4) = 4 [pid 15232] close(3) = 0 [pid 15232] memfd_create("syzkaller", 0) = 3 [pid 15232] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15232] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15232] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15232] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15232] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15232] ioctl(4, LOOP_CLR_FD) = 0 [pid 15232] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15232] close(4) = 0 [pid 15232] close(3) = 0 [pid 15232] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15232] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15232] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15232] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15232] open("./bus", O_RDONLY) = 3 [pid 15232] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15232] exit_group(0) = ? [pid 15232] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15232, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15233 ./strace-static-x86_64: Process 15233 attached [pid 15233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15233] setpgid(0, 0) = 0 [pid 15233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15233] write(3, "1000", 4) = 4 [pid 15233] close(3) = 0 [pid 15233] memfd_create("syzkaller", 0) = 3 [pid 15233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15233] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15233] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15233] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15233] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15233] ioctl(4, LOOP_CLR_FD) = 0 [pid 15233] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15233] close(4) = 0 [pid 15233] close(3) = 0 [pid 15233] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15233] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15233] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15233] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15233] open("./bus", O_RDONLY) = 3 [pid 15233] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15233] exit_group(0) = ? [pid 15233] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15233, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15234 attached , child_tidptr=0x5555575235d0) = 15234 [pid 15234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15234] setpgid(0, 0) = 0 [pid 15234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15234] write(3, "1000", 4) = 4 [pid 15234] close(3) = 0 [pid 15234] memfd_create("syzkaller", 0) = 3 [pid 15234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15234] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15234] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15234] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15234] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15234] ioctl(4, LOOP_CLR_FD) = 0 [pid 15234] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15234] close(4) = 0 [pid 15234] close(3) = 0 [pid 15234] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15234] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15234] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15234] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15234] open("./bus", O_RDONLY) = 3 [pid 15234] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15234] exit_group(0) = ? [pid 15234] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15234, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15235 ./strace-static-x86_64: Process 15235 attached [pid 15235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15235] setpgid(0, 0) = 0 [pid 15235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15235] write(3, "1000", 4) = 4 [pid 15235] close(3) = 0 [pid 15235] memfd_create("syzkaller", 0) = 3 [pid 15235] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15235] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15235] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15235] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15235] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15235] ioctl(4, LOOP_CLR_FD) = 0 [pid 15235] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15235] close(4) = 0 [pid 15235] close(3) = 0 [pid 15235] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15235] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15235] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15235] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15235] open("./bus", O_RDONLY) = 3 [pid 15235] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15235] exit_group(0) = ? [pid 15235] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15235, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15236 ./strace-static-x86_64: Process 15236 attached [pid 15236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15236] setpgid(0, 0) = 0 [pid 15236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15236] write(3, "1000", 4) = 4 [pid 15236] close(3) = 0 [pid 15236] memfd_create("syzkaller", 0) = 3 [pid 15236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15236] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15236] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15236] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15236] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15236] ioctl(4, LOOP_CLR_FD) = 0 [pid 15236] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15236] close(4) = 0 [pid 15236] close(3) = 0 [pid 15236] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15236] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15236] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15236] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15236] open("./bus", O_RDONLY) = 3 [pid 15236] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15236] exit_group(0) = ? [pid 15236] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15236, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15237 ./strace-static-x86_64: Process 15237 attached [pid 15237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15237] setpgid(0, 0) = 0 [pid 15237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15237] write(3, "1000", 4) = 4 [pid 15237] close(3) = 0 [pid 15237] memfd_create("syzkaller", 0) = 3 [pid 15237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15237] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15237] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15237] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15237] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15237] ioctl(4, LOOP_CLR_FD) = 0 [pid 15237] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15237] close(4) = 0 [pid 15237] close(3) = 0 [pid 15237] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15237] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15237] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15237] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15237] open("./bus", O_RDONLY) = 3 [pid 15237] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15237] exit_group(0) = ? [pid 15237] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15237, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15238 attached , child_tidptr=0x5555575235d0) = 15238 [pid 15238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15238] setpgid(0, 0) = 0 [pid 15238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15238] write(3, "1000", 4) = 4 [pid 15238] close(3) = 0 [pid 15238] memfd_create("syzkaller", 0) = 3 [pid 15238] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15238] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15238] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15238] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15238] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15238] ioctl(4, LOOP_CLR_FD) = 0 [pid 15238] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15238] close(4) = 0 [pid 15238] close(3) = 0 [pid 15238] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15238] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15238] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15238] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15238] open("./bus", O_RDONLY) = 3 [pid 15238] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15238] exit_group(0) = ? [pid 15238] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15238, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15239 ./strace-static-x86_64: Process 15239 attached [pid 15239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15239] setpgid(0, 0) = 0 [pid 15239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15239] write(3, "1000", 4) = 4 [pid 15239] close(3) = 0 [pid 15239] memfd_create("syzkaller", 0) = 3 [pid 15239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15239] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15239] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15239] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15239] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15239] ioctl(4, LOOP_CLR_FD) = 0 [pid 15239] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15239] close(4) = 0 [pid 15239] close(3) = 0 [pid 15239] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15239] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15239] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15239] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15239] open("./bus", O_RDONLY) = 3 [pid 15239] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15239] exit_group(0) = ? [pid 15239] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15239, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15240 attached , child_tidptr=0x5555575235d0) = 15240 [pid 15240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15240] setpgid(0, 0) = 0 [pid 15240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15240] write(3, "1000", 4) = 4 [pid 15240] close(3) = 0 [pid 15240] memfd_create("syzkaller", 0) = 3 [pid 15240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15240] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15240] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15240] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15240] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15240] ioctl(4, LOOP_CLR_FD) = 0 [pid 15240] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15240] close(4) = 0 [pid 15240] close(3) = 0 [pid 15240] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15240] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15240] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15240] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15240] open("./bus", O_RDONLY) = 3 [pid 15240] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15240] exit_group(0) = ? [pid 15240] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15240, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15241 ./strace-static-x86_64: Process 15241 attached [pid 15241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15241] setpgid(0, 0) = 0 [pid 15241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15241] write(3, "1000", 4) = 4 [pid 15241] close(3) = 0 [pid 15241] memfd_create("syzkaller", 0) = 3 [pid 15241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15241] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15241] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15241] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15241] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15241] ioctl(4, LOOP_CLR_FD) = 0 [pid 15241] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15241] close(4) = 0 [pid 15241] close(3) = 0 [pid 15241] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15241] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15241] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15241] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15241] open("./bus", O_RDONLY) = 3 [pid 15241] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15241] exit_group(0) = ? [pid 15241] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15241, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15242 ./strace-static-x86_64: Process 15242 attached [pid 15242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15242] setpgid(0, 0) = 0 [pid 15242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15242] write(3, "1000", 4) = 4 [pid 15242] close(3) = 0 [pid 15242] memfd_create("syzkaller", 0) = 3 [pid 15242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15242] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15242] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15242] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15242] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15242] ioctl(4, LOOP_CLR_FD) = 0 [pid 15242] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15242] close(4) = 0 [pid 15242] close(3) = 0 [pid 15242] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15242] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15242] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15242] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15242] open("./bus", O_RDONLY) = 3 [pid 15242] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15242] exit_group(0) = ? [pid 15242] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15242, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15243 ./strace-static-x86_64: Process 15243 attached [pid 15243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15243] setpgid(0, 0) = 0 [pid 15243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15243] write(3, "1000", 4) = 4 [pid 15243] close(3) = 0 [pid 15243] memfd_create("syzkaller", 0) = 3 [pid 15243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15243] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15243] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15243] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15243] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15243] ioctl(4, LOOP_CLR_FD) = 0 [pid 15243] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15243] close(4) = 0 [pid 15243] close(3) = 0 [pid 15243] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15243] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15243] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15243] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15243] open("./bus", O_RDONLY) = 3 [pid 15243] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15243] exit_group(0) = ? [pid 15243] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15243, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15244 attached , child_tidptr=0x5555575235d0) = 15244 [pid 15244] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15244] setpgid(0, 0) = 0 [pid 15244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15244] write(3, "1000", 4) = 4 [pid 15244] close(3) = 0 [pid 15244] memfd_create("syzkaller", 0) = 3 [pid 15244] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15244] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15244] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15244] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15244] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15244] ioctl(4, LOOP_CLR_FD) = 0 [pid 15244] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15244] close(4) = 0 [pid 15244] close(3) = 0 [pid 15244] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15244] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15244] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15244] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15244] open("./bus", O_RDONLY) = 3 [pid 15244] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15244] exit_group(0) = ? [pid 15244] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15244, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15245 ./strace-static-x86_64: Process 15245 attached [pid 15245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15245] setpgid(0, 0) = 0 [pid 15245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15245] write(3, "1000", 4) = 4 [pid 15245] close(3) = 0 [pid 15245] memfd_create("syzkaller", 0) = 3 [pid 15245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15245] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15245] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15245] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15245] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15245] ioctl(4, LOOP_CLR_FD) = 0 [pid 15245] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15245] close(4) = 0 [pid 15245] close(3) = 0 [pid 15245] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15245] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15245] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15245] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15245] open("./bus", O_RDONLY) = 3 [pid 15245] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15245] exit_group(0) = ? [pid 15245] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15245, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15246 attached , child_tidptr=0x5555575235d0) = 15246 [pid 15246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15246] setpgid(0, 0) = 0 [pid 15246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15246] write(3, "1000", 4) = 4 [pid 15246] close(3) = 0 [pid 15246] memfd_create("syzkaller", 0) = 3 [pid 15246] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15246] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15246] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15246] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15246] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15246] ioctl(4, LOOP_CLR_FD) = 0 [pid 15246] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15246] close(4) = 0 [pid 15246] close(3) = 0 [pid 15246] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15246] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15246] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15246] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15246] open("./bus", O_RDONLY) = 3 [pid 15246] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15246] exit_group(0) = ? [pid 15246] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15246, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15247 ./strace-static-x86_64: Process 15247 attached [pid 15247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15247] setpgid(0, 0) = 0 [pid 15247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15247] write(3, "1000", 4) = 4 [pid 15247] close(3) = 0 [pid 15247] memfd_create("syzkaller", 0) = 3 [pid 15247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15247] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15247] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15247] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15247] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15247] ioctl(4, LOOP_CLR_FD) = 0 [pid 15247] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15247] close(4) = 0 [pid 15247] close(3) = 0 [pid 15247] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15247] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15247] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15247] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15247] open("./bus", O_RDONLY) = 3 [pid 15247] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15247] exit_group(0) = ? [pid 15247] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15247, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15248 attached , child_tidptr=0x5555575235d0) = 15248 [pid 15248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15248] setpgid(0, 0) = 0 [pid 15248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15248] write(3, "1000", 4) = 4 [pid 15248] close(3) = 0 [pid 15248] memfd_create("syzkaller", 0) = 3 [pid 15248] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15248] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15248] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15248] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15248] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15248] ioctl(4, LOOP_CLR_FD) = 0 [pid 15248] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15248] close(4) = 0 [pid 15248] close(3) = 0 [pid 15248] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15248] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15248] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15248] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15248] open("./bus", O_RDONLY) = 3 [pid 15248] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15248] exit_group(0) = ? [pid 15248] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15248, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15249 ./strace-static-x86_64: Process 15249 attached [pid 15249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15249] setpgid(0, 0) = 0 [pid 15249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15249] write(3, "1000", 4) = 4 [pid 15249] close(3) = 0 [pid 15249] memfd_create("syzkaller", 0) = 3 [pid 15249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15249] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15249] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15249] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15249] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15249] ioctl(4, LOOP_CLR_FD) = 0 [pid 15249] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15249] close(4) = 0 [pid 15249] close(3) = 0 [pid 15249] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15249] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15249] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15249] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15249] open("./bus", O_RDONLY) = 3 [pid 15249] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15249] exit_group(0) = ? [pid 15249] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15249, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15250 attached , child_tidptr=0x5555575235d0) = 15250 [pid 15250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15250] setpgid(0, 0) = 0 [pid 15250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15250] write(3, "1000", 4) = 4 [pid 15250] close(3) = 0 [pid 15250] memfd_create("syzkaller", 0) = 3 [pid 15250] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15250] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15250] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15250] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15250] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15250] ioctl(4, LOOP_CLR_FD) = 0 [pid 15250] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15250] close(4) = 0 [pid 15250] close(3) = 0 [pid 15250] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15250] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15250] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15250] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15250] open("./bus", O_RDONLY) = 3 [pid 15250] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15250] exit_group(0) = ? [pid 15250] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15250, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15251 ./strace-static-x86_64: Process 15251 attached [pid 15251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15251] setpgid(0, 0) = 0 [pid 15251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15251] write(3, "1000", 4) = 4 [pid 15251] close(3) = 0 [pid 15251] memfd_create("syzkaller", 0) = 3 [pid 15251] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15251] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15251] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15251] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15251] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15251] ioctl(4, LOOP_CLR_FD) = 0 [pid 15251] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15251] close(4) = 0 [pid 15251] close(3) = 0 [pid 15251] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15251] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15251] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15251] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15251] open("./bus", O_RDONLY) = 3 [pid 15251] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15251] exit_group(0) = ? [pid 15251] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15251, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15252 attached , child_tidptr=0x5555575235d0) = 15252 [pid 15252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15252] setpgid(0, 0) = 0 [pid 15252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15252] write(3, "1000", 4) = 4 [pid 15252] close(3) = 0 [pid 15252] memfd_create("syzkaller", 0) = 3 [pid 15252] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15252] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15252] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15252] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15252] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15252] ioctl(4, LOOP_CLR_FD) = 0 [pid 15252] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15252] close(4) = 0 [pid 15252] close(3) = 0 [pid 15252] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15252] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15252] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15252] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15252] open("./bus", O_RDONLY) = 3 [pid 15252] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15252] exit_group(0) = ? [pid 15252] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15252, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15253 attached , child_tidptr=0x5555575235d0) = 15253 [pid 15253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15253] setpgid(0, 0) = 0 [pid 15253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15253] write(3, "1000", 4) = 4 [pid 15253] close(3) = 0 [pid 15253] memfd_create("syzkaller", 0) = 3 [pid 15253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15253] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15253] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15253] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15253] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15253] ioctl(4, LOOP_CLR_FD) = 0 [pid 15253] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15253] close(4) = 0 [pid 15253] close(3) = 0 [pid 15253] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15253] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15253] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15253] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15253] open("./bus", O_RDONLY) = 3 [pid 15253] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15253] exit_group(0) = ? [pid 15253] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15253, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15254 attached , child_tidptr=0x5555575235d0) = 15254 [pid 15254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15254] setpgid(0, 0) = 0 [pid 15254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15254] write(3, "1000", 4) = 4 [pid 15254] close(3) = 0 [pid 15254] memfd_create("syzkaller", 0) = 3 [pid 15254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15254] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15254] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15254] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15254] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15254] ioctl(4, LOOP_CLR_FD) = 0 [pid 15254] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15254] close(4) = 0 [pid 15254] close(3) = 0 [pid 15254] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15254] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15254] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15254] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15254] open("./bus", O_RDONLY) = 3 [pid 15254] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15254] exit_group(0) = ? [pid 15254] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15254, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15255 attached , child_tidptr=0x5555575235d0) = 15255 [pid 15255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15255] setpgid(0, 0) = 0 [pid 15255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15255] write(3, "1000", 4) = 4 [pid 15255] close(3) = 0 [pid 15255] memfd_create("syzkaller", 0) = 3 [pid 15255] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15255] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15255] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15255] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15255] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15255] ioctl(4, LOOP_CLR_FD) = 0 [pid 15255] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15255] close(4) = 0 [pid 15255] close(3) = 0 [pid 15255] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15255] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15255] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15255] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15255] open("./bus", O_RDONLY) = 3 [pid 15255] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15255] exit_group(0) = ? [pid 15255] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15255, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15256 ./strace-static-x86_64: Process 15256 attached [pid 15256] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15256] setpgid(0, 0) = 0 [pid 15256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15256] write(3, "1000", 4) = 4 [pid 15256] close(3) = 0 [pid 15256] memfd_create("syzkaller", 0) = 3 [pid 15256] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15256] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15256] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15256] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15256] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15256] ioctl(4, LOOP_CLR_FD) = 0 [pid 15256] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15256] close(4) = 0 [pid 15256] close(3) = 0 [pid 15256] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15256] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15256] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15256] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15256] open("./bus", O_RDONLY) = 3 [pid 15256] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15256] exit_group(0) = ? [pid 15256] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15256, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15257 attached , child_tidptr=0x5555575235d0) = 15257 [pid 15257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15257] setpgid(0, 0) = 0 [pid 15257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15257] write(3, "1000", 4) = 4 [pid 15257] close(3) = 0 [pid 15257] memfd_create("syzkaller", 0) = 3 [pid 15257] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15257] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15257] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15257] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15257] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15257] ioctl(4, LOOP_CLR_FD) = 0 [pid 15257] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15257] close(4) = 0 [pid 15257] close(3) = 0 [pid 15257] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15257] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15257] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15257] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15257] open("./bus", O_RDONLY) = 3 [pid 15257] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15257] exit_group(0) = ? [pid 15257] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15257, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15258 attached , child_tidptr=0x5555575235d0) = 15258 [pid 15258] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15258] setpgid(0, 0) = 0 [pid 15258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15258] write(3, "1000", 4) = 4 [pid 15258] close(3) = 0 [pid 15258] memfd_create("syzkaller", 0) = 3 [pid 15258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15258] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15258] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15258] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15258] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15258] ioctl(4, LOOP_CLR_FD) = 0 [pid 15258] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15258] close(4) = 0 [pid 15258] close(3) = 0 [pid 15258] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15258] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15258] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15258] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15258] open("./bus", O_RDONLY) = 3 [pid 15258] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15258] exit_group(0) = ? [pid 15258] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15258, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15259 ./strace-static-x86_64: Process 15259 attached [pid 15259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15259] setpgid(0, 0) = 0 [pid 15259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15259] write(3, "1000", 4) = 4 [pid 15259] close(3) = 0 [pid 15259] memfd_create("syzkaller", 0) = 3 [pid 15259] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15259] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15259] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15259] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15259] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15259] ioctl(4, LOOP_CLR_FD) = 0 [pid 15259] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15259] close(4) = 0 [pid 15259] close(3) = 0 [pid 15259] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15259] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15259] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15259] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15259] open("./bus", O_RDONLY) = 3 [pid 15259] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15259] exit_group(0) = ? [pid 15259] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15259, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15260 ./strace-static-x86_64: Process 15260 attached [pid 15260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15260] setpgid(0, 0) = 0 [pid 15260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15260] write(3, "1000", 4) = 4 [pid 15260] close(3) = 0 [pid 15260] memfd_create("syzkaller", 0) = 3 [pid 15260] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15260] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15260] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15260] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15260] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15260] ioctl(4, LOOP_CLR_FD) = 0 [pid 15260] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15260] close(4) = 0 [pid 15260] close(3) = 0 [pid 15260] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15260] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15260] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15260] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15260] open("./bus", O_RDONLY) = 3 [pid 15260] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15260] exit_group(0) = ? [pid 15260] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15260, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15261 attached , child_tidptr=0x5555575235d0) = 15261 [pid 15261] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15261] setpgid(0, 0) = 0 [pid 15261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15261] write(3, "1000", 4) = 4 [pid 15261] close(3) = 0 [pid 15261] memfd_create("syzkaller", 0) = 3 [pid 15261] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15261] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15261] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15261] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15261] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15261] ioctl(4, LOOP_CLR_FD) = 0 [pid 15261] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15261] close(4) = 0 [pid 15261] close(3) = 0 [pid 15261] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15261] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15261] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15261] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15261] open("./bus", O_RDONLY) = 3 [pid 15261] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15261] exit_group(0) = ? [pid 15261] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15261, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15262 ./strace-static-x86_64: Process 15262 attached [pid 15262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15262] setpgid(0, 0) = 0 [pid 15262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15262] write(3, "1000", 4) = 4 [pid 15262] close(3) = 0 [pid 15262] memfd_create("syzkaller", 0) = 3 [pid 15262] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15262] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15262] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15262] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15262] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15262] ioctl(4, LOOP_CLR_FD) = 0 [pid 15262] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15262] close(4) = 0 [pid 15262] close(3) = 0 [pid 15262] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15262] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15262] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15262] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15262] open("./bus", O_RDONLY) = 3 [pid 15262] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15262] exit_group(0) = ? [pid 15262] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15262, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15263 ./strace-static-x86_64: Process 15263 attached [pid 15263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15263] setpgid(0, 0) = 0 [pid 15263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15263] write(3, "1000", 4) = 4 [pid 15263] close(3) = 0 [pid 15263] memfd_create("syzkaller", 0) = 3 [pid 15263] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15263] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15263] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15263] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15263] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15263] ioctl(4, LOOP_CLR_FD) = 0 [pid 15263] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15263] close(4) = 0 [pid 15263] close(3) = 0 [pid 15263] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15263] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15263] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15263] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15263] open("./bus", O_RDONLY) = 3 [pid 15263] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15263] exit_group(0) = ? [pid 15263] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15263, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15264 ./strace-static-x86_64: Process 15264 attached [pid 15264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15264] setpgid(0, 0) = 0 [pid 15264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15264] write(3, "1000", 4) = 4 [pid 15264] close(3) = 0 [pid 15264] memfd_create("syzkaller", 0) = 3 [pid 15264] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15264] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15264] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15264] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15264] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15264] ioctl(4, LOOP_CLR_FD) = 0 [pid 15264] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15264] close(4) = 0 [pid 15264] close(3) = 0 [pid 15264] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15264] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15264] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15264] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15264] open("./bus", O_RDONLY) = 3 [pid 15264] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15264] exit_group(0) = ? [pid 15264] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15264, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15265 ./strace-static-x86_64: Process 15265 attached [pid 15265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15265] setpgid(0, 0) = 0 [pid 15265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15265] write(3, "1000", 4) = 4 [pid 15265] close(3) = 0 [pid 15265] memfd_create("syzkaller", 0) = 3 [pid 15265] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15265] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15265] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15265] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15265] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15265] ioctl(4, LOOP_CLR_FD) = 0 [pid 15265] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15265] close(4) = 0 [pid 15265] close(3) = 0 [pid 15265] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15265] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15265] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15265] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15265] open("./bus", O_RDONLY) = 3 [pid 15265] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15265] exit_group(0) = ? [pid 15265] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15265, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15266 attached , child_tidptr=0x5555575235d0) = 15266 [pid 15266] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15266] setpgid(0, 0) = 0 [pid 15266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15266] write(3, "1000", 4) = 4 [pid 15266] close(3) = 0 [pid 15266] memfd_create("syzkaller", 0) = 3 [pid 15266] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15266] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15266] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15266] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15266] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15266] ioctl(4, LOOP_CLR_FD) = 0 [pid 15266] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15266] close(4) = 0 [pid 15266] close(3) = 0 [pid 15266] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15266] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15266] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15266] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15266] open("./bus", O_RDONLY) = 3 [pid 15266] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15266] exit_group(0) = ? [pid 15266] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15266, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15267 attached , child_tidptr=0x5555575235d0) = 15267 [pid 15267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15267] setpgid(0, 0) = 0 [pid 15267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15267] write(3, "1000", 4) = 4 [pid 15267] close(3) = 0 [pid 15267] memfd_create("syzkaller", 0) = 3 [pid 15267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15267] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15267] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15267] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15267] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15267] ioctl(4, LOOP_CLR_FD) = 0 [pid 15267] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15267] close(4) = 0 [pid 15267] close(3) = 0 [pid 15267] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15267] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15267] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15267] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15267] open("./bus", O_RDONLY) = 3 [pid 15267] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15267] exit_group(0) = ? [pid 15267] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15267, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15268 attached , child_tidptr=0x5555575235d0) = 15268 [pid 15268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15268] setpgid(0, 0) = 0 [pid 15268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15268] write(3, "1000", 4) = 4 [pid 15268] close(3) = 0 [pid 15268] memfd_create("syzkaller", 0) = 3 [pid 15268] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15268] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15268] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15268] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15268] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15268] ioctl(4, LOOP_CLR_FD) = 0 [pid 15268] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15268] close(4) = 0 [pid 15268] close(3) = 0 [pid 15268] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15268] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15268] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15268] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15268] open("./bus", O_RDONLY) = 3 [pid 15268] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15268] exit_group(0) = ? [pid 15268] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15268, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15269 ./strace-static-x86_64: Process 15269 attached [pid 15269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15269] setpgid(0, 0) = 0 [pid 15269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15269] write(3, "1000", 4) = 4 [pid 15269] close(3) = 0 [pid 15269] memfd_create("syzkaller", 0) = 3 [pid 15269] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15269] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15269] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15269] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15269] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15269] ioctl(4, LOOP_CLR_FD) = 0 [pid 15269] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15269] close(4) = 0 [pid 15269] close(3) = 0 [pid 15269] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15269] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15269] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15269] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15269] open("./bus", O_RDONLY) = 3 [pid 15269] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15269] exit_group(0) = ? [pid 15269] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15269, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15270 ./strace-static-x86_64: Process 15270 attached [pid 15270] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15270] setpgid(0, 0) = 0 [pid 15270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15270] write(3, "1000", 4) = 4 [pid 15270] close(3) = 0 [pid 15270] memfd_create("syzkaller", 0) = 3 [pid 15270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15270] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15270] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15270] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15270] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15270] ioctl(4, LOOP_CLR_FD) = 0 [pid 15270] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15270] close(4) = 0 [pid 15270] close(3) = 0 [pid 15270] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15270] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15270] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15270] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15270] open("./bus", O_RDONLY) = 3 [pid 15270] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15270] exit_group(0) = ? [pid 15270] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15270, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15271 ./strace-static-x86_64: Process 15271 attached [pid 15271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15271] setpgid(0, 0) = 0 [pid 15271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15271] write(3, "1000", 4) = 4 [pid 15271] close(3) = 0 [pid 15271] memfd_create("syzkaller", 0) = 3 [pid 15271] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15271] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15271] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15271] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15271] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15271] ioctl(4, LOOP_CLR_FD) = 0 [pid 15271] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15271] close(4) = 0 [pid 15271] close(3) = 0 [pid 15271] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15271] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15271] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15271] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15271] open("./bus", O_RDONLY) = 3 [pid 15271] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15271] exit_group(0) = ? [pid 15271] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15271, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15272 ./strace-static-x86_64: Process 15272 attached [pid 15272] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15272] setpgid(0, 0) = 0 [pid 15272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15272] write(3, "1000", 4) = 4 [pid 15272] close(3) = 0 [pid 15272] memfd_create("syzkaller", 0) = 3 [pid 15272] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15272] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15272] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15272] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15272] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15272] ioctl(4, LOOP_CLR_FD) = 0 [pid 15272] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15272] close(4) = 0 [pid 15272] close(3) = 0 [pid 15272] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15272] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15272] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15272] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15272] open("./bus", O_RDONLY) = 3 [pid 15272] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15272] exit_group(0) = ? [pid 15272] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15272, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15273 ./strace-static-x86_64: Process 15273 attached [pid 15273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15273] setpgid(0, 0) = 0 [pid 15273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15273] write(3, "1000", 4) = 4 [pid 15273] close(3) = 0 [pid 15273] memfd_create("syzkaller", 0) = 3 [pid 15273] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15273] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15273] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15273] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15273] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15273] ioctl(4, LOOP_CLR_FD) = 0 [pid 15273] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15273] close(4) = 0 [pid 15273] close(3) = 0 [pid 15273] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15273] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15273] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15273] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15273] open("./bus", O_RDONLY) = 3 [pid 15273] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15273] exit_group(0) = ? [pid 15273] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15273, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15274 ./strace-static-x86_64: Process 15274 attached [pid 15274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15274] setpgid(0, 0) = 0 [pid 15274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15274] write(3, "1000", 4) = 4 [pid 15274] close(3) = 0 [pid 15274] memfd_create("syzkaller", 0) = 3 [pid 15274] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15274] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15274] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15274] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15274] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15274] ioctl(4, LOOP_CLR_FD) = 0 [pid 15274] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15274] close(4) = 0 [pid 15274] close(3) = 0 [pid 15274] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15274] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15274] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15274] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15274] open("./bus", O_RDONLY) = 3 [pid 15274] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15274] exit_group(0) = ? [pid 15274] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15274, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15275 ./strace-static-x86_64: Process 15275 attached [pid 15275] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15275] setpgid(0, 0) = 0 [pid 15275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15275] write(3, "1000", 4) = 4 [pid 15275] close(3) = 0 [pid 15275] memfd_create("syzkaller", 0) = 3 [pid 15275] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15275] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15275] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15275] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15275] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15275] ioctl(4, LOOP_CLR_FD) = 0 [pid 15275] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15275] close(4) = 0 [pid 15275] close(3) = 0 [pid 15275] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15275] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15275] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15275] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15275] open("./bus", O_RDONLY) = 3 [pid 15275] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15275] exit_group(0) = ? [pid 15275] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15275, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15276 attached , child_tidptr=0x5555575235d0) = 15276 [pid 15276] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15276] setpgid(0, 0) = 0 [pid 15276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15276] write(3, "1000", 4) = 4 [pid 15276] close(3) = 0 [pid 15276] memfd_create("syzkaller", 0) = 3 [pid 15276] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15276] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15276] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15276] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15276] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15276] ioctl(4, LOOP_CLR_FD) = 0 [pid 15276] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15276] close(4) = 0 [pid 15276] close(3) = 0 [pid 15276] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15276] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15276] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15276] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15276] open("./bus", O_RDONLY) = 3 [pid 15276] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15276] exit_group(0) = ? [pid 15276] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15276, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15277 ./strace-static-x86_64: Process 15277 attached [pid 15277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15277] setpgid(0, 0) = 0 [pid 15277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15277] write(3, "1000", 4) = 4 [pid 15277] close(3) = 0 [pid 15277] memfd_create("syzkaller", 0) = 3 [pid 15277] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15277] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15277] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15277] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15277] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15277] ioctl(4, LOOP_CLR_FD) = 0 [pid 15277] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15277] close(4) = 0 [pid 15277] close(3) = 0 [pid 15277] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15277] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15277] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15277] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15277] open("./bus", O_RDONLY) = 3 [pid 15277] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15277] exit_group(0) = ? [pid 15277] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15277, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15278 ./strace-static-x86_64: Process 15278 attached [pid 15278] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15278] setpgid(0, 0) = 0 [pid 15278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15278] write(3, "1000", 4) = 4 [pid 15278] close(3) = 0 [pid 15278] memfd_create("syzkaller", 0) = 3 [pid 15278] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15278] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15278] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15278] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15278] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15278] ioctl(4, LOOP_CLR_FD) = 0 [pid 15278] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15278] close(4) = 0 [pid 15278] close(3) = 0 [pid 15278] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15278] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15278] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15278] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15278] open("./bus", O_RDONLY) = 3 [pid 15278] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15278] exit_group(0) = ? [pid 15278] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15278, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15279 ./strace-static-x86_64: Process 15279 attached [pid 15279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15279] setpgid(0, 0) = 0 [pid 15279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15279] write(3, "1000", 4) = 4 [pid 15279] close(3) = 0 [pid 15279] memfd_create("syzkaller", 0) = 3 [pid 15279] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15279] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15279] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15279] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15279] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15279] ioctl(4, LOOP_CLR_FD) = 0 [pid 15279] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15279] close(4) = 0 [pid 15279] close(3) = 0 [pid 15279] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15279] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15279] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15279] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15279] open("./bus", O_RDONLY) = 3 [pid 15279] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15279] exit_group(0) = ? [pid 15279] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15279, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15280 ./strace-static-x86_64: Process 15280 attached [pid 15280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15280] setpgid(0, 0) = 0 [pid 15280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15280] write(3, "1000", 4) = 4 [pid 15280] close(3) = 0 [pid 15280] memfd_create("syzkaller", 0) = 3 [pid 15280] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15280] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15280] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15280] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15280] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15280] ioctl(4, LOOP_CLR_FD) = 0 [pid 15280] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15280] close(4) = 0 [pid 15280] close(3) = 0 [pid 15280] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15280] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15280] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15280] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15280] open("./bus", O_RDONLY) = 3 [pid 15280] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15280] exit_group(0) = ? [pid 15280] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15280, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15281 ./strace-static-x86_64: Process 15281 attached [pid 15281] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15281] setpgid(0, 0) = 0 [pid 15281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15281] write(3, "1000", 4) = 4 [pid 15281] close(3) = 0 [pid 15281] memfd_create("syzkaller", 0) = 3 [pid 15281] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15281] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15281] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15281] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15281] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15281] ioctl(4, LOOP_CLR_FD) = 0 [pid 15281] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15281] close(4) = 0 [pid 15281] close(3) = 0 [pid 15281] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15281] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15281] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15281] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15281] open("./bus", O_RDONLY) = 3 [pid 15281] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15281] exit_group(0) = ? [pid 15281] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15281, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15282 ./strace-static-x86_64: Process 15282 attached [pid 15282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15282] setpgid(0, 0) = 0 [pid 15282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15282] write(3, "1000", 4) = 4 [pid 15282] close(3) = 0 [pid 15282] memfd_create("syzkaller", 0) = 3 [pid 15282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15282] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15282] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15282] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15282] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15282] ioctl(4, LOOP_CLR_FD) = 0 [pid 15282] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15282] close(4) = 0 [pid 15282] close(3) = 0 [pid 15282] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15282] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15282] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15282] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15282] open("./bus", O_RDONLY) = 3 [pid 15282] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15282] exit_group(0) = ? [pid 15282] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15282, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15283 attached , child_tidptr=0x5555575235d0) = 15283 [pid 15283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15283] setpgid(0, 0) = 0 [pid 15283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15283] write(3, "1000", 4) = 4 [pid 15283] close(3) = 0 [pid 15283] memfd_create("syzkaller", 0) = 3 [pid 15283] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15283] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15283] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15283] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15283] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15283] ioctl(4, LOOP_CLR_FD) = 0 [pid 15283] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15283] close(4) = 0 [pid 15283] close(3) = 0 [pid 15283] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15283] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15283] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15283] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15283] open("./bus", O_RDONLY) = 3 [pid 15283] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15283] exit_group(0) = ? [pid 15283] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15283, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15284 attached , child_tidptr=0x5555575235d0) = 15284 [pid 15284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15284] setpgid(0, 0) = 0 [pid 15284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15284] write(3, "1000", 4) = 4 [pid 15284] close(3) = 0 [pid 15284] memfd_create("syzkaller", 0) = 3 [pid 15284] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15284] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15284] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15284] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15284] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15284] ioctl(4, LOOP_CLR_FD) = 0 [pid 15284] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15284] close(4) = 0 [pid 15284] close(3) = 0 [pid 15284] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15284] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15284] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15284] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15284] open("./bus", O_RDONLY) = 3 [pid 15284] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15284] exit_group(0) = ? [pid 15284] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15284, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15285 ./strace-static-x86_64: Process 15285 attached [pid 15285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15285] setpgid(0, 0) = 0 [pid 15285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15285] write(3, "1000", 4) = 4 [pid 15285] close(3) = 0 [pid 15285] memfd_create("syzkaller", 0) = 3 [pid 15285] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15285] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15285] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15285] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15285] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15285] ioctl(4, LOOP_CLR_FD) = 0 [pid 15285] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15285] close(4) = 0 [pid 15285] close(3) = 0 [pid 15285] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15285] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15285] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15285] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15285] open("./bus", O_RDONLY) = 3 [pid 15285] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15285] exit_group(0) = ? [pid 15285] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15285, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15286 ./strace-static-x86_64: Process 15286 attached [pid 15286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15286] setpgid(0, 0) = 0 [pid 15286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15286] write(3, "1000", 4) = 4 [pid 15286] close(3) = 0 [pid 15286] memfd_create("syzkaller", 0) = 3 [pid 15286] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15286] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15286] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15286] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15286] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15286] ioctl(4, LOOP_CLR_FD) = 0 [pid 15286] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15286] close(4) = 0 [pid 15286] close(3) = 0 [pid 15286] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15286] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15286] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15286] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15286] open("./bus", O_RDONLY) = 3 [pid 15286] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15286] exit_group(0) = ? [pid 15286] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15286, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15287 ./strace-static-x86_64: Process 15287 attached [pid 15287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15287] setpgid(0, 0) = 0 [pid 15287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15287] write(3, "1000", 4) = 4 [pid 15287] close(3) = 0 [pid 15287] memfd_create("syzkaller", 0) = 3 [pid 15287] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15287] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15287] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15287] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15287] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15287] ioctl(4, LOOP_CLR_FD) = 0 [pid 15287] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15287] close(4) = 0 [pid 15287] close(3) = 0 [pid 15287] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15287] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15287] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15287] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15287] open("./bus", O_RDONLY) = 3 [pid 15287] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15287] exit_group(0) = ? [pid 15287] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15287, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15288 attached , child_tidptr=0x5555575235d0) = 15288 [pid 15288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15288] setpgid(0, 0) = 0 [pid 15288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15288] write(3, "1000", 4) = 4 [pid 15288] close(3) = 0 [pid 15288] memfd_create("syzkaller", 0) = 3 [pid 15288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15288] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15288] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15288] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15288] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15288] ioctl(4, LOOP_CLR_FD) = 0 [pid 15288] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15288] close(4) = 0 [pid 15288] close(3) = 0 [pid 15288] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15288] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15288] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15288] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15288] open("./bus", O_RDONLY) = 3 [pid 15288] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15288] exit_group(0) = ? [pid 15288] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15288, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15289 ./strace-static-x86_64: Process 15289 attached [pid 15289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15289] setpgid(0, 0) = 0 [pid 15289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15289] write(3, "1000", 4) = 4 [pid 15289] close(3) = 0 [pid 15289] memfd_create("syzkaller", 0) = 3 [pid 15289] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15289] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15289] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15289] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15289] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15289] ioctl(4, LOOP_CLR_FD) = 0 [pid 15289] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15289] close(4) = 0 [pid 15289] close(3) = 0 [pid 15289] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15289] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15289] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15289] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15289] open("./bus", O_RDONLY) = 3 [pid 15289] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15289] exit_group(0) = ? [pid 15289] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15289, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15290 ./strace-static-x86_64: Process 15290 attached [pid 15290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15290] setpgid(0, 0) = 0 [pid 15290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15290] write(3, "1000", 4) = 4 [pid 15290] close(3) = 0 [pid 15290] memfd_create("syzkaller", 0) = 3 [pid 15290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15290] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15290] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15290] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15290] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15290] ioctl(4, LOOP_CLR_FD) = 0 [pid 15290] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15290] close(4) = 0 [pid 15290] close(3) = 0 [pid 15290] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15290] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15290] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15290] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15290] open("./bus", O_RDONLY) = 3 [pid 15290] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15290] exit_group(0) = ? [pid 15290] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15290, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15291 ./strace-static-x86_64: Process 15291 attached [pid 15291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15291] setpgid(0, 0) = 0 [pid 15291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15291] write(3, "1000", 4) = 4 [pid 15291] close(3) = 0 [pid 15291] memfd_create("syzkaller", 0) = 3 [pid 15291] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15291] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15291] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15291] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15291] ioctl(4, LOOP_CLR_FD) = 0 [pid 15291] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15291] close(4) = 0 [pid 15291] close(3) = 0 [pid 15291] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15291] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15291] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15291] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15291] open("./bus", O_RDONLY) = 3 [pid 15291] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15291] exit_group(0) = ? [pid 15291] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15291, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15292 ./strace-static-x86_64: Process 15292 attached [pid 15292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15292] setpgid(0, 0) = 0 [pid 15292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15292] write(3, "1000", 4) = 4 [pid 15292] close(3) = 0 [pid 15292] memfd_create("syzkaller", 0) = 3 [pid 15292] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15292] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15292] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15292] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15292] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15292] ioctl(4, LOOP_CLR_FD) = 0 [pid 15292] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15292] close(4) = 0 [pid 15292] close(3) = 0 [pid 15292] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15292] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15292] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15292] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15292] open("./bus", O_RDONLY) = 3 [pid 15292] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15292] exit_group(0) = ? [pid 15292] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15292, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15293 attached , child_tidptr=0x5555575235d0) = 15293 [pid 15293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15293] setpgid(0, 0) = 0 [pid 15293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15293] write(3, "1000", 4) = 4 [pid 15293] close(3) = 0 [pid 15293] memfd_create("syzkaller", 0) = 3 [pid 15293] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15293] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15293] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15293] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15293] ioctl(4, LOOP_CLR_FD) = 0 [pid 15293] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15293] close(4) = 0 [pid 15293] close(3) = 0 [pid 15293] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15293] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15293] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15293] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15293] open("./bus", O_RDONLY) = 3 [pid 15293] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15293] exit_group(0) = ? [pid 15293] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15293, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15294 attached , child_tidptr=0x5555575235d0) = 15294 [pid 15294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15294] setpgid(0, 0) = 0 [pid 15294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15294] write(3, "1000", 4) = 4 [pid 15294] close(3) = 0 [pid 15294] memfd_create("syzkaller", 0) = 3 [pid 15294] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15294] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15294] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15294] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15294] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15294] ioctl(4, LOOP_CLR_FD) = 0 [pid 15294] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15294] close(4) = 0 [pid 15294] close(3) = 0 [pid 15294] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15294] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15294] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15294] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15294] open("./bus", O_RDONLY) = 3 [pid 15294] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15294] exit_group(0) = ? [pid 15294] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15294, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15295 ./strace-static-x86_64: Process 15295 attached [pid 15295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15295] setpgid(0, 0) = 0 [pid 15295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15295] write(3, "1000", 4) = 4 [pid 15295] close(3) = 0 [pid 15295] memfd_create("syzkaller", 0) = 3 [pid 15295] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15295] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15295] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15295] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15295] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15295] ioctl(4, LOOP_CLR_FD) = 0 [pid 15295] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15295] close(4) = 0 [pid 15295] close(3) = 0 [pid 15295] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15295] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15295] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15295] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15295] open("./bus", O_RDONLY) = 3 [pid 15295] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15295] exit_group(0) = ? [pid 15295] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15295, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15296 ./strace-static-x86_64: Process 15296 attached [pid 15296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15296] setpgid(0, 0) = 0 [pid 15296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15296] write(3, "1000", 4) = 4 [pid 15296] close(3) = 0 [pid 15296] memfd_create("syzkaller", 0) = 3 [pid 15296] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15296] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15296] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15296] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15296] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15296] ioctl(4, LOOP_CLR_FD) = 0 [pid 15296] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15296] close(4) = 0 [pid 15296] close(3) = 0 [pid 15296] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15296] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15296] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15296] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15296] open("./bus", O_RDONLY) = 3 [pid 15296] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15296] exit_group(0) = ? [pid 15296] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15296, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15297 ./strace-static-x86_64: Process 15297 attached [pid 15297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15297] setpgid(0, 0) = 0 [pid 15297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15297] write(3, "1000", 4) = 4 [pid 15297] close(3) = 0 [pid 15297] memfd_create("syzkaller", 0) = 3 [pid 15297] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15297] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15297] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15297] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15297] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15297] ioctl(4, LOOP_CLR_FD) = 0 [pid 15297] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15297] close(4) = 0 [pid 15297] close(3) = 0 [pid 15297] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15297] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15297] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15297] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15297] open("./bus", O_RDONLY) = 3 [pid 15297] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15297] exit_group(0) = ? [pid 15297] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15297, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15298 ./strace-static-x86_64: Process 15298 attached [pid 15298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15298] setpgid(0, 0) = 0 [pid 15298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15298] write(3, "1000", 4) = 4 [pid 15298] close(3) = 0 [pid 15298] memfd_create("syzkaller", 0) = 3 [pid 15298] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15298] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15298] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15298] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15298] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15298] ioctl(4, LOOP_CLR_FD) = 0 [pid 15298] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15298] close(4) = 0 [pid 15298] close(3) = 0 [pid 15298] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15298] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15298] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15298] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15298] open("./bus", O_RDONLY) = 3 [pid 15298] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15298] exit_group(0) = ? [pid 15298] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15298, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15299 ./strace-static-x86_64: Process 15299 attached [pid 15299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15299] setpgid(0, 0) = 0 [pid 15299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15299] write(3, "1000", 4) = 4 [pid 15299] close(3) = 0 [pid 15299] memfd_create("syzkaller", 0) = 3 [pid 15299] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15299] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15299] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15299] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15299] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15299] ioctl(4, LOOP_CLR_FD) = 0 [pid 15299] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15299] close(4) = 0 [pid 15299] close(3) = 0 [pid 15299] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15299] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15299] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15299] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15299] open("./bus", O_RDONLY) = 3 [pid 15299] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15299] exit_group(0) = ? [pid 15299] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15299, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15300 attached , child_tidptr=0x5555575235d0) = 15300 [pid 15300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15300] setpgid(0, 0) = 0 [pid 15300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15300] write(3, "1000", 4) = 4 [pid 15300] close(3) = 0 [pid 15300] memfd_create("syzkaller", 0) = 3 [pid 15300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15300] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15300] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15300] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15300] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15300] ioctl(4, LOOP_CLR_FD) = 0 [pid 15300] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15300] close(4) = 0 [pid 15300] close(3) = 0 [pid 15300] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15300] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15300] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15300] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15300] open("./bus", O_RDONLY) = 3 [pid 15300] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15300] exit_group(0) = ? [pid 15300] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15300, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15301 ./strace-static-x86_64: Process 15301 attached [pid 15301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15301] setpgid(0, 0) = 0 [pid 15301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15301] write(3, "1000", 4) = 4 [pid 15301] close(3) = 0 [pid 15301] memfd_create("syzkaller", 0) = 3 [pid 15301] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15301] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15301] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15301] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15301] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15301] ioctl(4, LOOP_CLR_FD) = 0 [pid 15301] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15301] close(4) = 0 [pid 15301] close(3) = 0 [pid 15301] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15301] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15301] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15301] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15301] open("./bus", O_RDONLY) = 3 [pid 15301] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15301] exit_group(0) = ? [pid 15301] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15301, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15302 ./strace-static-x86_64: Process 15302 attached [pid 15302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15302] setpgid(0, 0) = 0 [pid 15302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15302] write(3, "1000", 4) = 4 [pid 15302] close(3) = 0 [pid 15302] memfd_create("syzkaller", 0) = 3 [pid 15302] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15302] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15302] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15302] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15302] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15302] ioctl(4, LOOP_CLR_FD) = 0 [pid 15302] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15302] close(4) = 0 [pid 15302] close(3) = 0 [pid 15302] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15302] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15302] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15302] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15302] open("./bus", O_RDONLY) = 3 [pid 15302] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15302] exit_group(0) = ? [pid 15302] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15302, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15303 attached , child_tidptr=0x5555575235d0) = 15303 [pid 15303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15303] setpgid(0, 0) = 0 [pid 15303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15303] write(3, "1000", 4) = 4 [pid 15303] close(3) = 0 [pid 15303] memfd_create("syzkaller", 0) = 3 [pid 15303] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15303] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15303] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15303] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15303] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15303] ioctl(4, LOOP_CLR_FD) = 0 [pid 15303] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15303] close(4) = 0 [pid 15303] close(3) = 0 [pid 15303] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15303] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15303] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15303] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15303] open("./bus", O_RDONLY) = 3 [pid 15303] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15303] exit_group(0) = ? [pid 15303] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15303, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15304 attached , child_tidptr=0x5555575235d0) = 15304 [pid 15304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15304] setpgid(0, 0) = 0 [pid 15304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15304] write(3, "1000", 4) = 4 [pid 15304] close(3) = 0 [pid 15304] memfd_create("syzkaller", 0) = 3 [pid 15304] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15304] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15304] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15304] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15304] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15304] ioctl(4, LOOP_CLR_FD) = 0 [pid 15304] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15304] close(4) = 0 [pid 15304] close(3) = 0 [pid 15304] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15304] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15304] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15304] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15304] open("./bus", O_RDONLY) = 3 [pid 15304] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15304] exit_group(0) = ? [pid 15304] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15304, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15305 ./strace-static-x86_64: Process 15305 attached [pid 15305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15305] setpgid(0, 0) = 0 [pid 15305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15305] write(3, "1000", 4) = 4 [pid 15305] close(3) = 0 [pid 15305] memfd_create("syzkaller", 0) = 3 [pid 15305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15305] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15305] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15305] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15305] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15305] ioctl(4, LOOP_CLR_FD) = 0 [pid 15305] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15305] close(4) = 0 [pid 15305] close(3) = 0 [pid 15305] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15305] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15305] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15305] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15305] open("./bus", O_RDONLY) = 3 [pid 15305] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15305] exit_group(0) = ? [pid 15305] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15305, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15306 ./strace-static-x86_64: Process 15306 attached [pid 15306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15306] setpgid(0, 0) = 0 [pid 15306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15306] write(3, "1000", 4) = 4 [pid 15306] close(3) = 0 [pid 15306] memfd_create("syzkaller", 0) = 3 [pid 15306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15306] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15306] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15306] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15306] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15306] ioctl(4, LOOP_CLR_FD) = 0 [pid 15306] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15306] close(4) = 0 [pid 15306] close(3) = 0 [pid 15306] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15306] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15306] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15306] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15306] open("./bus", O_RDONLY) = 3 [pid 15306] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15306] exit_group(0) = ? [pid 15306] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15306, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15307 ./strace-static-x86_64: Process 15307 attached [pid 15307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15307] setpgid(0, 0) = 0 [pid 15307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15307] write(3, "1000", 4) = 4 [pid 15307] close(3) = 0 [pid 15307] memfd_create("syzkaller", 0) = 3 [pid 15307] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15307] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15307] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15307] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15307] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15307] ioctl(4, LOOP_CLR_FD) = 0 [pid 15307] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15307] close(4) = 0 [pid 15307] close(3) = 0 [pid 15307] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15307] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15307] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15307] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15307] open("./bus", O_RDONLY) = 3 [pid 15307] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15307] exit_group(0) = ? [pid 15307] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15307, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15308 ./strace-static-x86_64: Process 15308 attached [pid 15308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15308] setpgid(0, 0) = 0 [pid 15308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15308] write(3, "1000", 4) = 4 [pid 15308] close(3) = 0 [pid 15308] memfd_create("syzkaller", 0) = 3 [pid 15308] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15308] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15308] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15308] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15308] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15308] ioctl(4, LOOP_CLR_FD) = 0 [pid 15308] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15308] close(4) = 0 [pid 15308] close(3) = 0 [pid 15308] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15308] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15308] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15308] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15308] open("./bus", O_RDONLY) = 3 [pid 15308] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15308] exit_group(0) = ? [pid 15308] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15308, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15309 ./strace-static-x86_64: Process 15309 attached [pid 15309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15309] setpgid(0, 0) = 0 [pid 15309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15309] write(3, "1000", 4) = 4 [pid 15309] close(3) = 0 [pid 15309] memfd_create("syzkaller", 0) = 3 [pid 15309] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15309] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15309] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15309] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15309] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15309] ioctl(4, LOOP_CLR_FD) = 0 [pid 15309] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15309] close(4) = 0 [pid 15309] close(3) = 0 [pid 15309] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15309] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15309] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15309] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15309] open("./bus", O_RDONLY) = 3 [pid 15309] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15309] exit_group(0) = ? [pid 15309] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15309, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15310 ./strace-static-x86_64: Process 15310 attached [pid 15310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15310] setpgid(0, 0) = 0 [pid 15310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15310] write(3, "1000", 4) = 4 [pid 15310] close(3) = 0 [pid 15310] memfd_create("syzkaller", 0) = 3 [pid 15310] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15310] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15310] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15310] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15310] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15310] ioctl(4, LOOP_CLR_FD) = 0 [pid 15310] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15310] close(4) = 0 [pid 15310] close(3) = 0 [pid 15310] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15310] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15310] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15310] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15310] open("./bus", O_RDONLY) = 3 [pid 15310] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15310] exit_group(0) = ? [pid 15310] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15310, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15311 ./strace-static-x86_64: Process 15311 attached [pid 15311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15311] setpgid(0, 0) = 0 [pid 15311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15311] write(3, "1000", 4) = 4 [pid 15311] close(3) = 0 [pid 15311] memfd_create("syzkaller", 0) = 3 [pid 15311] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15311] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15311] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15311] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15311] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15311] ioctl(4, LOOP_CLR_FD) = 0 [pid 15311] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15311] close(4) = 0 [pid 15311] close(3) = 0 [pid 15311] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15311] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15311] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15311] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15311] open("./bus", O_RDONLY) = 3 [pid 15311] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15311] exit_group(0) = ? [pid 15311] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15311, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15312 attached , child_tidptr=0x5555575235d0) = 15312 [pid 15312] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15312] setpgid(0, 0) = 0 [pid 15312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15312] write(3, "1000", 4) = 4 [pid 15312] close(3) = 0 [pid 15312] memfd_create("syzkaller", 0) = 3 [pid 15312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15312] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15312] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15312] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15312] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15312] ioctl(4, LOOP_CLR_FD) = 0 [pid 15312] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15312] close(4) = 0 [pid 15312] close(3) = 0 [pid 15312] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15312] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15312] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15312] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15312] open("./bus", O_RDONLY) = 3 [pid 15312] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15312] exit_group(0) = ? [pid 15312] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15312, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15313 attached , child_tidptr=0x5555575235d0) = 15313 [pid 15313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15313] setpgid(0, 0) = 0 [pid 15313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15313] write(3, "1000", 4) = 4 [pid 15313] close(3) = 0 [pid 15313] memfd_create("syzkaller", 0) = 3 [pid 15313] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15313] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15313] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15313] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15313] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15313] ioctl(4, LOOP_CLR_FD) = 0 [pid 15313] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15313] close(4) = 0 [pid 15313] close(3) = 0 [pid 15313] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15313] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15313] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15313] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15313] open("./bus", O_RDONLY) = 3 [pid 15313] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15313] exit_group(0) = ? [pid 15313] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15313, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15314 ./strace-static-x86_64: Process 15314 attached [pid 15314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15314] setpgid(0, 0) = 0 [pid 15314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15314] write(3, "1000", 4) = 4 [pid 15314] close(3) = 0 [pid 15314] memfd_create("syzkaller", 0) = 3 [pid 15314] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15314] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15314] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15314] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15314] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15314] ioctl(4, LOOP_CLR_FD) = 0 [pid 15314] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15314] close(4) = 0 [pid 15314] close(3) = 0 [pid 15314] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15314] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15314] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15314] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15314] open("./bus", O_RDONLY) = 3 [pid 15314] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15314] exit_group(0) = ? [pid 15314] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15314, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15315 ./strace-static-x86_64: Process 15315 attached [pid 15315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15315] setpgid(0, 0) = 0 [pid 15315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15315] write(3, "1000", 4) = 4 [pid 15315] close(3) = 0 [pid 15315] memfd_create("syzkaller", 0) = 3 [pid 15315] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15315] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15315] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15315] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15315] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15315] ioctl(4, LOOP_CLR_FD) = 0 [pid 15315] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15315] close(4) = 0 [pid 15315] close(3) = 0 [pid 15315] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15315] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15315] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15315] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15315] open("./bus", O_RDONLY) = 3 [pid 15315] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15315] exit_group(0) = ? [pid 15315] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15315, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15316 attached , child_tidptr=0x5555575235d0) = 15316 [pid 15316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15316] setpgid(0, 0) = 0 [pid 15316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15316] write(3, "1000", 4) = 4 [pid 15316] close(3) = 0 [pid 15316] memfd_create("syzkaller", 0) = 3 [pid 15316] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15316] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15316] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15316] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15316] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15316] ioctl(4, LOOP_CLR_FD) = 0 [pid 15316] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15316] close(4) = 0 [pid 15316] close(3) = 0 [pid 15316] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15316] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15316] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15316] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15316] open("./bus", O_RDONLY) = 3 [pid 15316] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15316] exit_group(0) = ? [pid 15316] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15316, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15317 ./strace-static-x86_64: Process 15317 attached [pid 15317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15317] setpgid(0, 0) = 0 [pid 15317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15317] write(3, "1000", 4) = 4 [pid 15317] close(3) = 0 [pid 15317] memfd_create("syzkaller", 0) = 3 [pid 15317] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15317] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15317] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15317] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15317] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15317] ioctl(4, LOOP_CLR_FD) = 0 [pid 15317] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15317] close(4) = 0 [pid 15317] close(3) = 0 [pid 15317] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15317] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15317] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15317] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15317] open("./bus", O_RDONLY) = 3 [pid 15317] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15317] exit_group(0) = ? [pid 15317] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15317, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15318 ./strace-static-x86_64: Process 15318 attached [pid 15318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15318] setpgid(0, 0) = 0 [pid 15318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15318] write(3, "1000", 4) = 4 [pid 15318] close(3) = 0 [pid 15318] memfd_create("syzkaller", 0) = 3 [pid 15318] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15318] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15318] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15318] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15318] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15318] ioctl(4, LOOP_CLR_FD) = 0 [pid 15318] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15318] close(4) = 0 [pid 15318] close(3) = 0 [pid 15318] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15318] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15318] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15318] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15318] open("./bus", O_RDONLY) = 3 [pid 15318] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15318] exit_group(0) = ? [pid 15318] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15318, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15319 attached , child_tidptr=0x5555575235d0) = 15319 [pid 15319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15319] setpgid(0, 0) = 0 [pid 15319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15319] write(3, "1000", 4) = 4 [pid 15319] close(3) = 0 [pid 15319] memfd_create("syzkaller", 0) = 3 [pid 15319] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15319] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15319] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15319] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15319] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15319] ioctl(4, LOOP_CLR_FD) = 0 [pid 15319] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15319] close(4) = 0 [pid 15319] close(3) = 0 [pid 15319] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15319] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15319] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15319] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15319] open("./bus", O_RDONLY) = 3 [pid 15319] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15319] exit_group(0) = ? [pid 15319] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15319, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15320 attached , child_tidptr=0x5555575235d0) = 15320 [pid 15320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15320] setpgid(0, 0) = 0 [pid 15320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15320] write(3, "1000", 4) = 4 [pid 15320] close(3) = 0 [pid 15320] memfd_create("syzkaller", 0) = 3 [pid 15320] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15320] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15320] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15320] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15320] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15320] ioctl(4, LOOP_CLR_FD) = 0 [pid 15320] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15320] close(4) = 0 [pid 15320] close(3) = 0 [pid 15320] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15320] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15320] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15320] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15320] open("./bus", O_RDONLY) = 3 [pid 15320] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15320] exit_group(0) = ? [pid 15320] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15320, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15321 ./strace-static-x86_64: Process 15321 attached [pid 15321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15321] setpgid(0, 0) = 0 [pid 15321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15321] write(3, "1000", 4) = 4 [pid 15321] close(3) = 0 [pid 15321] memfd_create("syzkaller", 0) = 3 [pid 15321] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15321] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15321] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15321] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15321] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15321] ioctl(4, LOOP_CLR_FD) = 0 [pid 15321] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15321] close(4) = 0 [pid 15321] close(3) = 0 [pid 15321] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15321] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15321] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15321] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15321] open("./bus", O_RDONLY) = 3 [pid 15321] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15321] exit_group(0) = ? [pid 15321] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15321, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15322 ./strace-static-x86_64: Process 15322 attached [pid 15322] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15322] setpgid(0, 0) = 0 [pid 15322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15322] write(3, "1000", 4) = 4 [pid 15322] close(3) = 0 [pid 15322] memfd_create("syzkaller", 0) = 3 [pid 15322] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15322] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15322] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15322] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15322] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15322] ioctl(4, LOOP_CLR_FD) = 0 [pid 15322] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15322] close(4) = 0 [pid 15322] close(3) = 0 [pid 15322] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15322] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15322] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15322] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15322] open("./bus", O_RDONLY) = 3 [pid 15322] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15322] exit_group(0) = ? [pid 15322] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15322, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15323 attached , child_tidptr=0x5555575235d0) = 15323 [pid 15323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15323] setpgid(0, 0) = 0 [pid 15323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15323] write(3, "1000", 4) = 4 [pid 15323] close(3) = 0 [pid 15323] memfd_create("syzkaller", 0) = 3 [pid 15323] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15323] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15323] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15323] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15323] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15323] ioctl(4, LOOP_CLR_FD) = 0 [pid 15323] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15323] close(4) = 0 [pid 15323] close(3) = 0 [pid 15323] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15323] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15323] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15323] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15323] open("./bus", O_RDONLY) = 3 [pid 15323] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15323] exit_group(0) = ? [pid 15323] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15323, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15324 ./strace-static-x86_64: Process 15324 attached [pid 15324] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15324] setpgid(0, 0) = 0 [pid 15324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15324] write(3, "1000", 4) = 4 [pid 15324] close(3) = 0 [pid 15324] memfd_create("syzkaller", 0) = 3 [pid 15324] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15324] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15324] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15324] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15324] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15324] ioctl(4, LOOP_CLR_FD) = 0 [pid 15324] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15324] close(4) = 0 [pid 15324] close(3) = 0 [pid 15324] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15324] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15324] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15324] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15324] open("./bus", O_RDONLY) = 3 [pid 15324] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15324] exit_group(0) = ? [pid 15324] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15324, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15325 ./strace-static-x86_64: Process 15325 attached [pid 15325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15325] setpgid(0, 0) = 0 [pid 15325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15325] write(3, "1000", 4) = 4 [pid 15325] close(3) = 0 [pid 15325] memfd_create("syzkaller", 0) = 3 [pid 15325] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15325] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15325] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15325] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15325] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15325] ioctl(4, LOOP_CLR_FD) = 0 [pid 15325] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15325] close(4) = 0 [pid 15325] close(3) = 0 [pid 15325] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15325] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15325] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15325] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15325] open("./bus", O_RDONLY) = 3 [pid 15325] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15325] exit_group(0) = ? [pid 15325] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15325, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15326 ./strace-static-x86_64: Process 15326 attached [pid 15326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15326] setpgid(0, 0) = 0 [pid 15326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15326] write(3, "1000", 4) = 4 [pid 15326] close(3) = 0 [pid 15326] memfd_create("syzkaller", 0) = 3 [pid 15326] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15326] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15326] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15326] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15326] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15326] ioctl(4, LOOP_CLR_FD) = 0 [pid 15326] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15326] close(4) = 0 [pid 15326] close(3) = 0 [pid 15326] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15326] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15326] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15326] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15326] open("./bus", O_RDONLY) = 3 [pid 15326] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15326] exit_group(0) = ? [pid 15326] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15326, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15327 attached , child_tidptr=0x5555575235d0) = 15327 [pid 15327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15327] setpgid(0, 0) = 0 [pid 15327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15327] write(3, "1000", 4) = 4 [pid 15327] close(3) = 0 [pid 15327] memfd_create("syzkaller", 0) = 3 [pid 15327] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15327] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15327] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15327] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15327] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15327] ioctl(4, LOOP_CLR_FD) = 0 [pid 15327] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15327] close(4) = 0 [pid 15327] close(3) = 0 [pid 15327] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15327] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15327] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15327] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15327] open("./bus", O_RDONLY) = 3 [pid 15327] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15327] exit_group(0) = ? [pid 15327] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15327, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15328 attached , child_tidptr=0x5555575235d0) = 15328 [pid 15328] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15328] setpgid(0, 0) = 0 [pid 15328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15328] write(3, "1000", 4) = 4 [pid 15328] close(3) = 0 [pid 15328] memfd_create("syzkaller", 0) = 3 [pid 15328] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15328] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15328] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15328] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15328] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15328] ioctl(4, LOOP_CLR_FD) = 0 [pid 15328] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15328] close(4) = 0 [pid 15328] close(3) = 0 [pid 15328] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15328] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15328] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15328] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15328] open("./bus", O_RDONLY) = 3 [pid 15328] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15328] exit_group(0) = ? [pid 15328] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15328, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15329 attached , child_tidptr=0x5555575235d0) = 15329 [pid 15329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15329] setpgid(0, 0) = 0 [pid 15329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15329] write(3, "1000", 4) = 4 [pid 15329] close(3) = 0 [pid 15329] memfd_create("syzkaller", 0) = 3 [pid 15329] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15329] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15329] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15329] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15329] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15329] ioctl(4, LOOP_CLR_FD) = 0 [pid 15329] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15329] close(4) = 0 [pid 15329] close(3) = 0 [pid 15329] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15329] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15329] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15329] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15329] open("./bus", O_RDONLY) = 3 [pid 15329] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15329] exit_group(0) = ? [pid 15329] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15329, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15330 attached , child_tidptr=0x5555575235d0) = 15330 [pid 15330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15330] setpgid(0, 0) = 0 [pid 15330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15330] write(3, "1000", 4) = 4 [pid 15330] close(3) = 0 [pid 15330] memfd_create("syzkaller", 0) = 3 [pid 15330] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15330] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15330] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15330] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15330] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15330] ioctl(4, LOOP_CLR_FD) = 0 [pid 15330] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15330] close(4) = 0 [pid 15330] close(3) = 0 [pid 15330] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15330] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15330] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15330] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15330] open("./bus", O_RDONLY) = 3 [pid 15330] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15330] exit_group(0) = ? [pid 15330] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15330, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15331 ./strace-static-x86_64: Process 15331 attached [pid 15331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15331] setpgid(0, 0) = 0 [pid 15331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15331] write(3, "1000", 4) = 4 [pid 15331] close(3) = 0 [pid 15331] memfd_create("syzkaller", 0) = 3 [pid 15331] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15331] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15331] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15331] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15331] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15331] ioctl(4, LOOP_CLR_FD) = 0 [pid 15331] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15331] close(4) = 0 [pid 15331] close(3) = 0 [pid 15331] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15331] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15331] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15331] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15331] open("./bus", O_RDONLY) = 3 [pid 15331] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15331] exit_group(0) = ? [pid 15331] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15331, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15332 attached , child_tidptr=0x5555575235d0) = 15332 [pid 15332] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15332] setpgid(0, 0) = 0 [pid 15332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15332] write(3, "1000", 4) = 4 [pid 15332] close(3) = 0 [pid 15332] memfd_create("syzkaller", 0) = 3 [pid 15332] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15332] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15332] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15332] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15332] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15332] ioctl(4, LOOP_CLR_FD) = 0 [pid 15332] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15332] close(4) = 0 [pid 15332] close(3) = 0 [pid 15332] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15332] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15332] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15332] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15332] open("./bus", O_RDONLY) = 3 [pid 15332] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15332] exit_group(0) = ? [pid 15332] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15332, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15333 attached , child_tidptr=0x5555575235d0) = 15333 [pid 15333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15333] setpgid(0, 0) = 0 [pid 15333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15333] write(3, "1000", 4) = 4 [pid 15333] close(3) = 0 [pid 15333] memfd_create("syzkaller", 0) = 3 [pid 15333] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15333] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15333] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15333] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15333] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15333] ioctl(4, LOOP_CLR_FD) = 0 [pid 15333] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15333] close(4) = 0 [pid 15333] close(3) = 0 [pid 15333] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15333] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15333] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15333] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15333] open("./bus", O_RDONLY) = 3 [pid 15333] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15333] exit_group(0) = ? [pid 15333] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15333, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15334 ./strace-static-x86_64: Process 15334 attached [pid 15334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15334] setpgid(0, 0) = 0 [pid 15334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15334] write(3, "1000", 4) = 4 [pid 15334] close(3) = 0 [pid 15334] memfd_create("syzkaller", 0) = 3 [pid 15334] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15334] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15334] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15334] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15334] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15334] ioctl(4, LOOP_CLR_FD) = 0 [pid 15334] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15334] close(4) = 0 [pid 15334] close(3) = 0 [pid 15334] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15334] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15334] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15334] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15334] open("./bus", O_RDONLY) = 3 [pid 15334] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15334] exit_group(0) = ? [pid 15334] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15334, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15335 attached , child_tidptr=0x5555575235d0) = 15335 [pid 15335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15335] setpgid(0, 0) = 0 [pid 15335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15335] write(3, "1000", 4) = 4 [pid 15335] close(3) = 0 [pid 15335] memfd_create("syzkaller", 0) = 3 [pid 15335] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15335] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15335] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15335] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15335] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15335] ioctl(4, LOOP_CLR_FD) = 0 [pid 15335] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15335] close(4) = 0 [pid 15335] close(3) = 0 [pid 15335] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15335] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15335] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15335] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15335] open("./bus", O_RDONLY) = 3 [pid 15335] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15335] exit_group(0) = ? [pid 15335] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15335, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15336 attached , child_tidptr=0x5555575235d0) = 15336 [pid 15336] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15336] setpgid(0, 0) = 0 [pid 15336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15336] write(3, "1000", 4) = 4 [pid 15336] close(3) = 0 [pid 15336] memfd_create("syzkaller", 0) = 3 [pid 15336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15336] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15336] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15336] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15336] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15336] ioctl(4, LOOP_CLR_FD) = 0 [pid 15336] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15336] close(4) = 0 [pid 15336] close(3) = 0 [pid 15336] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15336] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15336] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15336] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15336] open("./bus", O_RDONLY) = 3 [pid 15336] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15336] exit_group(0) = ? [pid 15336] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15336, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15337 ./strace-static-x86_64: Process 15337 attached [pid 15337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15337] setpgid(0, 0) = 0 [pid 15337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15337] write(3, "1000", 4) = 4 [pid 15337] close(3) = 0 [pid 15337] memfd_create("syzkaller", 0) = 3 [pid 15337] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15337] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15337] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15337] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15337] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15337] ioctl(4, LOOP_CLR_FD) = 0 [pid 15337] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15337] close(4) = 0 [pid 15337] close(3) = 0 [pid 15337] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15337] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15337] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15337] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15337] open("./bus", O_RDONLY) = 3 [pid 15337] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15337] exit_group(0) = ? [pid 15337] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15337, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15338 ./strace-static-x86_64: Process 15338 attached [pid 15338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15338] setpgid(0, 0) = 0 [pid 15338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15338] write(3, "1000", 4) = 4 [pid 15338] close(3) = 0 [pid 15338] memfd_create("syzkaller", 0) = 3 [pid 15338] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15338] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15338] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15338] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15338] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15338] ioctl(4, LOOP_CLR_FD) = 0 [pid 15338] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15338] close(4) = 0 [pid 15338] close(3) = 0 [pid 15338] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15338] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15338] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15338] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15338] open("./bus", O_RDONLY) = 3 [pid 15338] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15338] exit_group(0) = ? [pid 15338] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15338, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15339 ./strace-static-x86_64: Process 15339 attached [pid 15339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15339] setpgid(0, 0) = 0 [pid 15339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15339] write(3, "1000", 4) = 4 [pid 15339] close(3) = 0 [pid 15339] memfd_create("syzkaller", 0) = 3 [pid 15339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15339] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15339] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15339] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15339] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15339] ioctl(4, LOOP_CLR_FD) = 0 [pid 15339] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15339] close(4) = 0 [pid 15339] close(3) = 0 [pid 15339] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15339] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15339] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15339] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15339] open("./bus", O_RDONLY) = 3 [pid 15339] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15339] exit_group(0) = ? [pid 15339] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15339, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15340 ./strace-static-x86_64: Process 15340 attached [pid 15340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15340] setpgid(0, 0) = 0 [pid 15340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15340] write(3, "1000", 4) = 4 [pid 15340] close(3) = 0 [pid 15340] memfd_create("syzkaller", 0) = 3 [pid 15340] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15340] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15340] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15340] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15340] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15340] ioctl(4, LOOP_CLR_FD) = 0 [pid 15340] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15340] close(4) = 0 [pid 15340] close(3) = 0 [pid 15340] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15340] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15340] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15340] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15340] open("./bus", O_RDONLY) = 3 [pid 15340] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15340] exit_group(0) = ? [pid 15340] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15340, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15341 attached , child_tidptr=0x5555575235d0) = 15341 [pid 15341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15341] setpgid(0, 0) = 0 [pid 15341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15341] write(3, "1000", 4) = 4 [pid 15341] close(3) = 0 [pid 15341] memfd_create("syzkaller", 0) = 3 [pid 15341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15341] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15341] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15341] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15341] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15341] ioctl(4, LOOP_CLR_FD) = 0 [pid 15341] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15341] close(4) = 0 [pid 15341] close(3) = 0 [pid 15341] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15341] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15341] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15341] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15341] open("./bus", O_RDONLY) = 3 [pid 15341] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15341] exit_group(0) = ? [pid 15341] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15341, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15342 ./strace-static-x86_64: Process 15342 attached [pid 15342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15342] setpgid(0, 0) = 0 [pid 15342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15342] write(3, "1000", 4) = 4 [pid 15342] close(3) = 0 [pid 15342] memfd_create("syzkaller", 0) = 3 [pid 15342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15342] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15342] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15342] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15342] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15342] ioctl(4, LOOP_CLR_FD) = 0 [pid 15342] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15342] close(4) = 0 [pid 15342] close(3) = 0 [pid 15342] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15342] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15342] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15342] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15342] open("./bus", O_RDONLY) = 3 [pid 15342] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15342] exit_group(0) = ? [pid 15342] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15342, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15343 attached , child_tidptr=0x5555575235d0) = 15343 [pid 15343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15343] setpgid(0, 0) = 0 [pid 15343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15343] write(3, "1000", 4) = 4 [pid 15343] close(3) = 0 [pid 15343] memfd_create("syzkaller", 0) = 3 [pid 15343] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15343] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15343] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15343] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15343] ioctl(4, LOOP_CLR_FD) = 0 [pid 15343] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15343] close(4) = 0 [pid 15343] close(3) = 0 [pid 15343] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15343] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15343] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15343] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15343] open("./bus", O_RDONLY) = 3 [pid 15343] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15343] exit_group(0) = ? [pid 15343] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15343, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15344 ./strace-static-x86_64: Process 15344 attached [pid 15344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15344] setpgid(0, 0) = 0 [pid 15344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15344] write(3, "1000", 4) = 4 [pid 15344] close(3) = 0 [pid 15344] memfd_create("syzkaller", 0) = 3 [pid 15344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15344] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15344] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15344] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15344] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15344] ioctl(4, LOOP_CLR_FD) = 0 [pid 15344] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15344] close(4) = 0 [pid 15344] close(3) = 0 [pid 15344] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15344] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15344] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15344] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15344] open("./bus", O_RDONLY) = 3 [pid 15344] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15344] exit_group(0) = ? [pid 15344] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15344, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15345 attached , child_tidptr=0x5555575235d0) = 15345 [pid 15345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15345] setpgid(0, 0) = 0 [pid 15345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15345] write(3, "1000", 4) = 4 [pid 15345] close(3) = 0 [pid 15345] memfd_create("syzkaller", 0) = 3 [pid 15345] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15345] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15345] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15345] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15345] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15345] ioctl(4, LOOP_CLR_FD) = 0 [pid 15345] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15345] close(4) = 0 [pid 15345] close(3) = 0 [pid 15345] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15345] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15345] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15345] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15345] open("./bus", O_RDONLY) = 3 [pid 15345] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15345] exit_group(0) = ? [pid 15345] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15345, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15346 attached , child_tidptr=0x5555575235d0) = 15346 [pid 15346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15346] setpgid(0, 0) = 0 [pid 15346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15346] write(3, "1000", 4) = 4 [pid 15346] close(3) = 0 [pid 15346] memfd_create("syzkaller", 0) = 3 [pid 15346] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15346] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15346] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15346] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15346] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15346] ioctl(4, LOOP_CLR_FD) = 0 [pid 15346] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15346] close(4) = 0 [pid 15346] close(3) = 0 [pid 15346] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15346] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15346] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15346] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15346] open("./bus", O_RDONLY) = 3 [pid 15346] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15346] exit_group(0) = ? [pid 15346] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15346, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15347 ./strace-static-x86_64: Process 15347 attached [pid 15347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15347] setpgid(0, 0) = 0 [pid 15347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15347] write(3, "1000", 4) = 4 [pid 15347] close(3) = 0 [pid 15347] memfd_create("syzkaller", 0) = 3 [pid 15347] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15347] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15347] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15347] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15347] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15347] ioctl(4, LOOP_CLR_FD) = 0 [pid 15347] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15347] close(4) = 0 [pid 15347] close(3) = 0 [pid 15347] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15347] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15347] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15347] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15347] open("./bus", O_RDONLY) = 3 [pid 15347] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15347] exit_group(0) = ? [pid 15347] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15347, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15348 attached , child_tidptr=0x5555575235d0) = 15348 [pid 15348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15348] setpgid(0, 0) = 0 [pid 15348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15348] write(3, "1000", 4) = 4 [pid 15348] close(3) = 0 [pid 15348] memfd_create("syzkaller", 0) = 3 [pid 15348] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15348] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15348] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15348] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15348] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15348] ioctl(4, LOOP_CLR_FD) = 0 [pid 15348] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15348] close(4) = 0 [pid 15348] close(3) = 0 [pid 15348] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15348] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15348] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15348] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15348] open("./bus", O_RDONLY) = 3 [pid 15348] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15348] exit_group(0) = ? [pid 15348] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15348, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15349 ./strace-static-x86_64: Process 15349 attached [pid 15349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15349] setpgid(0, 0) = 0 [pid 15349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15349] write(3, "1000", 4) = 4 [pid 15349] close(3) = 0 [pid 15349] memfd_create("syzkaller", 0) = 3 [pid 15349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15349] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15349] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15349] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15349] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15349] ioctl(4, LOOP_CLR_FD) = 0 [pid 15349] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15349] close(4) = 0 [pid 15349] close(3) = 0 [pid 15349] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15349] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15349] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15349] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15349] open("./bus", O_RDONLY) = 3 [pid 15349] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15349] exit_group(0) = ? [pid 15349] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15349, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15350 attached , child_tidptr=0x5555575235d0) = 15350 [pid 15350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15350] setpgid(0, 0) = 0 [pid 15350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15350] write(3, "1000", 4) = 4 [pid 15350] close(3) = 0 [pid 15350] memfd_create("syzkaller", 0) = 3 [pid 15350] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15350] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15350] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15350] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15350] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15350] ioctl(4, LOOP_CLR_FD) = 0 [pid 15350] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15350] close(4) = 0 [pid 15350] close(3) = 0 [pid 15350] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15350] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15350] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15350] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15350] open("./bus", O_RDONLY) = 3 [pid 15350] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15350] exit_group(0) = ? [pid 15350] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15350, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15351 ./strace-static-x86_64: Process 15351 attached [pid 15351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15351] setpgid(0, 0) = 0 [pid 15351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15351] write(3, "1000", 4) = 4 [pid 15351] close(3) = 0 [pid 15351] memfd_create("syzkaller", 0) = 3 [pid 15351] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15351] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15351] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15351] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15351] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15351] ioctl(4, LOOP_CLR_FD) = 0 [pid 15351] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15351] close(4) = 0 [pid 15351] close(3) = 0 [pid 15351] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15351] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15351] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15351] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15351] open("./bus", O_RDONLY) = 3 [pid 15351] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15351] exit_group(0) = ? [pid 15351] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15351, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15352 ./strace-static-x86_64: Process 15352 attached [pid 15352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15352] setpgid(0, 0) = 0 [pid 15352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15352] write(3, "1000", 4) = 4 [pid 15352] close(3) = 0 [pid 15352] memfd_create("syzkaller", 0) = 3 [pid 15352] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15352] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15352] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15352] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15352] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15352] ioctl(4, LOOP_CLR_FD) = 0 [pid 15352] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15352] close(4) = 0 [pid 15352] close(3) = 0 [pid 15352] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15352] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15352] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15352] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15352] open("./bus", O_RDONLY) = 3 [pid 15352] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15352] exit_group(0) = ? [pid 15352] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15352, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15353 attached , child_tidptr=0x5555575235d0) = 15353 [pid 15353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15353] setpgid(0, 0) = 0 [pid 15353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15353] write(3, "1000", 4) = 4 [pid 15353] close(3) = 0 [pid 15353] memfd_create("syzkaller", 0) = 3 [pid 15353] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15353] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15353] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15353] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15353] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15353] ioctl(4, LOOP_CLR_FD) = 0 [pid 15353] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15353] close(4) = 0 [pid 15353] close(3) = 0 [pid 15353] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15353] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15353] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15353] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15353] open("./bus", O_RDONLY) = 3 [pid 15353] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15353] exit_group(0) = ? [pid 15353] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15353, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15354 attached , child_tidptr=0x5555575235d0) = 15354 [pid 15354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15354] setpgid(0, 0) = 0 [pid 15354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15354] write(3, "1000", 4) = 4 [pid 15354] close(3) = 0 [pid 15354] memfd_create("syzkaller", 0) = 3 [pid 15354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15354] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15354] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15354] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15354] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15354] ioctl(4, LOOP_CLR_FD) = 0 [pid 15354] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15354] close(4) = 0 [pid 15354] close(3) = 0 [pid 15354] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15354] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15354] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15354] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15354] open("./bus", O_RDONLY) = 3 [pid 15354] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15354] exit_group(0) = ? [pid 15354] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15354, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15355 attached , child_tidptr=0x5555575235d0) = 15355 [pid 15355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15355] setpgid(0, 0) = 0 [pid 15355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15355] write(3, "1000", 4) = 4 [pid 15355] close(3) = 0 [pid 15355] memfd_create("syzkaller", 0) = 3 [pid 15355] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15355] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15355] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15355] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15355] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15355] ioctl(4, LOOP_CLR_FD) = 0 [pid 15355] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15355] close(4) = 0 [pid 15355] close(3) = 0 [pid 15355] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15355] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15355] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15355] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15355] open("./bus", O_RDONLY) = 3 [pid 15355] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15355] exit_group(0) = ? [pid 15355] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15355, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15356 ./strace-static-x86_64: Process 15356 attached [pid 15356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15356] setpgid(0, 0) = 0 [pid 15356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15356] write(3, "1000", 4) = 4 [pid 15356] close(3) = 0 [pid 15356] memfd_create("syzkaller", 0) = 3 [pid 15356] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15356] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15356] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15356] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15356] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15356] ioctl(4, LOOP_CLR_FD) = 0 [pid 15356] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15356] close(4) = 0 [pid 15356] close(3) = 0 [pid 15356] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15356] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15356] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15356] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15356] open("./bus", O_RDONLY) = 3 [pid 15356] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15356] exit_group(0) = ? [pid 15356] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15356, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15357 ./strace-static-x86_64: Process 15357 attached [pid 15357] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15357] setpgid(0, 0) = 0 [pid 15357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15357] write(3, "1000", 4) = 4 [pid 15357] close(3) = 0 [pid 15357] memfd_create("syzkaller", 0) = 3 [pid 15357] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15357] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15357] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15357] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15357] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15357] ioctl(4, LOOP_CLR_FD) = 0 [pid 15357] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15357] close(4) = 0 [pid 15357] close(3) = 0 [pid 15357] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15357] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15357] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15357] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15357] open("./bus", O_RDONLY) = 3 [pid 15357] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15357] exit_group(0) = ? [pid 15357] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15357, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15358 ./strace-static-x86_64: Process 15358 attached [pid 15358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15358] setpgid(0, 0) = 0 [pid 15358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15358] write(3, "1000", 4) = 4 [pid 15358] close(3) = 0 [pid 15358] memfd_create("syzkaller", 0) = 3 [pid 15358] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15358] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15358] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15358] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15358] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15358] ioctl(4, LOOP_CLR_FD) = 0 [pid 15358] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15358] close(4) = 0 [pid 15358] close(3) = 0 [pid 15358] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15358] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15358] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15358] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15358] open("./bus", O_RDONLY) = 3 [pid 15358] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15358] exit_group(0) = ? [pid 15358] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15358, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15359 ./strace-static-x86_64: Process 15359 attached [pid 15359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15359] setpgid(0, 0) = 0 [pid 15359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15359] write(3, "1000", 4) = 4 [pid 15359] close(3) = 0 [pid 15359] memfd_create("syzkaller", 0) = 3 [pid 15359] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15359] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15359] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15359] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15359] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15359] ioctl(4, LOOP_CLR_FD) = 0 [pid 15359] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15359] close(4) = 0 [pid 15359] close(3) = 0 [pid 15359] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15359] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15359] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15359] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15359] open("./bus", O_RDONLY) = 3 [pid 15359] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15359] exit_group(0) = ? [pid 15359] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15359, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15360 attached , child_tidptr=0x5555575235d0) = 15360 [pid 15360] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15360] setpgid(0, 0) = 0 [pid 15360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15360] write(3, "1000", 4) = 4 [pid 15360] close(3) = 0 [pid 15360] memfd_create("syzkaller", 0) = 3 [pid 15360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15360] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15360] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15360] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15360] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15360] ioctl(4, LOOP_CLR_FD) = 0 [pid 15360] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15360] close(4) = 0 [pid 15360] close(3) = 0 [pid 15360] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15360] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15360] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15360] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15360] open("./bus", O_RDONLY) = 3 [pid 15360] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15360] exit_group(0) = ? [pid 15360] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15360, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15361 attached , child_tidptr=0x5555575235d0) = 15361 [pid 15361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15361] setpgid(0, 0) = 0 [pid 15361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15361] write(3, "1000", 4) = 4 [pid 15361] close(3) = 0 [pid 15361] memfd_create("syzkaller", 0) = 3 [pid 15361] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15361] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15361] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15361] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15361] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15361] ioctl(4, LOOP_CLR_FD) = 0 [pid 15361] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15361] close(4) = 0 [pid 15361] close(3) = 0 [pid 15361] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15361] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15361] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15361] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15361] open("./bus", O_RDONLY) = 3 [pid 15361] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15361] exit_group(0) = ? [pid 15361] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15361, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15362 attached , child_tidptr=0x5555575235d0) = 15362 [pid 15362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15362] setpgid(0, 0) = 0 [pid 15362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15362] write(3, "1000", 4) = 4 [pid 15362] close(3) = 0 [pid 15362] memfd_create("syzkaller", 0) = 3 [pid 15362] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15362] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15362] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15362] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15362] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15362] ioctl(4, LOOP_CLR_FD) = 0 [pid 15362] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15362] close(4) = 0 [pid 15362] close(3) = 0 [pid 15362] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15362] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15362] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15362] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15362] open("./bus", O_RDONLY) = 3 [pid 15362] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15362] exit_group(0) = ? [pid 15362] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15362, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15363 ./strace-static-x86_64: Process 15363 attached [pid 15363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15363] setpgid(0, 0) = 0 [pid 15363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15363] write(3, "1000", 4) = 4 [pid 15363] close(3) = 0 [pid 15363] memfd_create("syzkaller", 0) = 3 [pid 15363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15363] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15363] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15363] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15363] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15363] ioctl(4, LOOP_CLR_FD) = 0 [pid 15363] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15363] close(4) = 0 [pid 15363] close(3) = 0 [pid 15363] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15363] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15363] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15363] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15363] open("./bus", O_RDONLY) = 3 [pid 15363] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15363] exit_group(0) = ? [pid 15363] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15363, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15364 attached , child_tidptr=0x5555575235d0) = 15364 [pid 15364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15364] setpgid(0, 0) = 0 [pid 15364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15364] write(3, "1000", 4) = 4 [pid 15364] close(3) = 0 [pid 15364] memfd_create("syzkaller", 0) = 3 [pid 15364] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15364] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15364] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15364] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15364] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15364] ioctl(4, LOOP_CLR_FD) = 0 [pid 15364] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15364] close(4) = 0 [pid 15364] close(3) = 0 [pid 15364] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15364] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15364] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15364] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15364] open("./bus", O_RDONLY) = 3 [pid 15364] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15364] exit_group(0) = ? [pid 15364] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15364, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15365 ./strace-static-x86_64: Process 15365 attached [pid 15365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15365] setpgid(0, 0) = 0 [pid 15365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15365] write(3, "1000", 4) = 4 [pid 15365] close(3) = 0 [pid 15365] memfd_create("syzkaller", 0) = 3 [pid 15365] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15365] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15365] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15365] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15365] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15365] ioctl(4, LOOP_CLR_FD) = 0 [pid 15365] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15365] close(4) = 0 [pid 15365] close(3) = 0 [pid 15365] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15365] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15365] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15365] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15365] open("./bus", O_RDONLY) = 3 [pid 15365] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15365] exit_group(0) = ? [pid 15365] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15365, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15366 ./strace-static-x86_64: Process 15366 attached [pid 15366] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15366] setpgid(0, 0) = 0 [pid 15366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15366] write(3, "1000", 4) = 4 [pid 15366] close(3) = 0 [pid 15366] memfd_create("syzkaller", 0) = 3 [pid 15366] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15366] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15366] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15366] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15366] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15366] ioctl(4, LOOP_CLR_FD) = 0 [pid 15366] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15366] close(4) = 0 [pid 15366] close(3) = 0 [pid 15366] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15366] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15366] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15366] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15366] open("./bus", O_RDONLY) = 3 [pid 15366] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15366] exit_group(0) = ? [pid 15366] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15366, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15367 attached , child_tidptr=0x5555575235d0) = 15367 [pid 15367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15367] setpgid(0, 0) = 0 [pid 15367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15367] write(3, "1000", 4) = 4 [pid 15367] close(3) = 0 [pid 15367] memfd_create("syzkaller", 0) = 3 [pid 15367] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15367] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15367] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15367] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15367] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15367] ioctl(4, LOOP_CLR_FD) = 0 [pid 15367] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15367] close(4) = 0 [pid 15367] close(3) = 0 [pid 15367] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15367] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15367] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15367] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15367] open("./bus", O_RDONLY) = 3 [pid 15367] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15367] exit_group(0) = ? [pid 15367] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15367, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15368 attached , child_tidptr=0x5555575235d0) = 15368 [pid 15368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15368] setpgid(0, 0) = 0 [pid 15368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15368] write(3, "1000", 4) = 4 [pid 15368] close(3) = 0 [pid 15368] memfd_create("syzkaller", 0) = 3 [pid 15368] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15368] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15368] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15368] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15368] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15368] ioctl(4, LOOP_CLR_FD) = 0 [pid 15368] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15368] close(4) = 0 [pid 15368] close(3) = 0 [pid 15368] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15368] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15368] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15368] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15368] open("./bus", O_RDONLY) = 3 [pid 15368] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15368] exit_group(0) = ? [pid 15368] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15368, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15369 attached , child_tidptr=0x5555575235d0) = 15369 [pid 15369] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15369] setpgid(0, 0) = 0 [pid 15369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15369] write(3, "1000", 4) = 4 [pid 15369] close(3) = 0 [pid 15369] memfd_create("syzkaller", 0) = 3 [pid 15369] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15369] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15369] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15369] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15369] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15369] ioctl(4, LOOP_CLR_FD) = 0 [pid 15369] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15369] close(4) = 0 [pid 15369] close(3) = 0 [pid 15369] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15369] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15369] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15369] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15369] open("./bus", O_RDONLY) = 3 [pid 15369] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15369] exit_group(0) = ? [pid 15369] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15369, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15370 ./strace-static-x86_64: Process 15370 attached [pid 15370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15370] setpgid(0, 0) = 0 [pid 15370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15370] write(3, "1000", 4) = 4 [pid 15370] close(3) = 0 [pid 15370] memfd_create("syzkaller", 0) = 3 [pid 15370] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15370] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15370] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15370] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15370] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15370] ioctl(4, LOOP_CLR_FD) = 0 [pid 15370] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15370] close(4) = 0 [pid 15370] close(3) = 0 [pid 15370] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15370] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15370] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15370] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15370] open("./bus", O_RDONLY) = 3 [pid 15370] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15370] exit_group(0) = ? [pid 15370] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15370, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15371 attached , child_tidptr=0x5555575235d0) = 15371 [pid 15371] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15371] setpgid(0, 0) = 0 [pid 15371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15371] write(3, "1000", 4) = 4 [pid 15371] close(3) = 0 [pid 15371] memfd_create("syzkaller", 0) = 3 [pid 15371] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15371] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15371] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15371] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15371] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15371] ioctl(4, LOOP_CLR_FD) = 0 [pid 15371] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15371] close(4) = 0 [pid 15371] close(3) = 0 [pid 15371] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15371] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15371] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15371] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15371] open("./bus", O_RDONLY) = 3 [pid 15371] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15371] exit_group(0) = ? [pid 15371] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15371, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15372 ./strace-static-x86_64: Process 15372 attached [pid 15372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15372] setpgid(0, 0) = 0 [pid 15372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15372] write(3, "1000", 4) = 4 [pid 15372] close(3) = 0 [pid 15372] memfd_create("syzkaller", 0) = 3 [pid 15372] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15372] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15372] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15372] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15372] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15372] ioctl(4, LOOP_CLR_FD) = 0 [pid 15372] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15372] close(4) = 0 [pid 15372] close(3) = 0 [pid 15372] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15372] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15372] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15372] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15372] open("./bus", O_RDONLY) = 3 [pid 15372] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15372] exit_group(0) = ? [pid 15372] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15372, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15373 ./strace-static-x86_64: Process 15373 attached [pid 15373] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15373] setpgid(0, 0) = 0 [pid 15373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15373] write(3, "1000", 4) = 4 [pid 15373] close(3) = 0 [pid 15373] memfd_create("syzkaller", 0) = 3 [pid 15373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15373] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15373] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15373] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15373] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15373] ioctl(4, LOOP_CLR_FD) = 0 [pid 15373] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15373] close(4) = 0 [pid 15373] close(3) = 0 [pid 15373] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15373] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15373] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15373] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15373] open("./bus", O_RDONLY) = 3 [pid 15373] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15373] exit_group(0) = ? [pid 15373] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15373, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15374 attached , child_tidptr=0x5555575235d0) = 15374 [pid 15374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15374] setpgid(0, 0) = 0 [pid 15374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15374] write(3, "1000", 4) = 4 [pid 15374] close(3) = 0 [pid 15374] memfd_create("syzkaller", 0) = 3 [pid 15374] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15374] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15374] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15374] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15374] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15374] ioctl(4, LOOP_CLR_FD) = 0 [pid 15374] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15374] close(4) = 0 [pid 15374] close(3) = 0 [pid 15374] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15374] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15374] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15374] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15374] open("./bus", O_RDONLY) = 3 [pid 15374] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15374] exit_group(0) = ? [pid 15374] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15374, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15375 attached , child_tidptr=0x5555575235d0) = 15375 [pid 15375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15375] setpgid(0, 0) = 0 [pid 15375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15375] write(3, "1000", 4) = 4 [pid 15375] close(3) = 0 [pid 15375] memfd_create("syzkaller", 0) = 3 [pid 15375] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15375] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15375] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15375] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15375] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15375] ioctl(4, LOOP_CLR_FD) = 0 [pid 15375] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15375] close(4) = 0 [pid 15375] close(3) = 0 [pid 15375] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15375] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15375] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15375] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15375] open("./bus", O_RDONLY) = 3 [pid 15375] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15375] exit_group(0) = ? [pid 15375] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15375, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15376 ./strace-static-x86_64: Process 15376 attached [pid 15376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15376] setpgid(0, 0) = 0 [pid 15376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15376] write(3, "1000", 4) = 4 [pid 15376] close(3) = 0 [pid 15376] memfd_create("syzkaller", 0) = 3 [pid 15376] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15376] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15376] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15376] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15376] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15376] ioctl(4, LOOP_CLR_FD) = 0 [pid 15376] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15376] close(4) = 0 [pid 15376] close(3) = 0 [pid 15376] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15376] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15376] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15376] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15376] open("./bus", O_RDONLY) = 3 [pid 15376] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15376] exit_group(0) = ? [pid 15376] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15376, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15377 ./strace-static-x86_64: Process 15377 attached [pid 15377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15377] setpgid(0, 0) = 0 [pid 15377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15377] write(3, "1000", 4) = 4 [pid 15377] close(3) = 0 [pid 15377] memfd_create("syzkaller", 0) = 3 [pid 15377] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15377] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15377] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15377] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15377] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15377] ioctl(4, LOOP_CLR_FD) = 0 [pid 15377] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15377] close(4) = 0 [pid 15377] close(3) = 0 [pid 15377] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15377] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15377] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15377] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15377] open("./bus", O_RDONLY) = 3 [pid 15377] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15377] exit_group(0) = ? [pid 15377] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15377, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15378 ./strace-static-x86_64: Process 15378 attached [pid 15378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15378] setpgid(0, 0) = 0 [pid 15378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15378] write(3, "1000", 4) = 4 [pid 15378] close(3) = 0 [pid 15378] memfd_create("syzkaller", 0) = 3 [pid 15378] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15378] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15378] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15378] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15378] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15378] ioctl(4, LOOP_CLR_FD) = 0 [pid 15378] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15378] close(4) = 0 [pid 15378] close(3) = 0 [pid 15378] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15378] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15378] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15378] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15378] open("./bus", O_RDONLY) = 3 [pid 15378] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15378] exit_group(0) = ? [pid 15378] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15378, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15379 ./strace-static-x86_64: Process 15379 attached [pid 15379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15379] setpgid(0, 0) = 0 [pid 15379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15379] write(3, "1000", 4) = 4 [pid 15379] close(3) = 0 [pid 15379] memfd_create("syzkaller", 0) = 3 [pid 15379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15379] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15379] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15379] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15379] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15379] ioctl(4, LOOP_CLR_FD) = 0 [pid 15379] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15379] close(4) = 0 [pid 15379] close(3) = 0 [pid 15379] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15379] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15379] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15379] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15379] open("./bus", O_RDONLY) = 3 [pid 15379] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15379] exit_group(0) = ? [pid 15379] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15379, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15380 ./strace-static-x86_64: Process 15380 attached [pid 15380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15380] setpgid(0, 0) = 0 [pid 15380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15380] write(3, "1000", 4) = 4 [pid 15380] close(3) = 0 [pid 15380] memfd_create("syzkaller", 0) = 3 [pid 15380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15380] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15380] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15380] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15380] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15380] ioctl(4, LOOP_CLR_FD) = 0 [pid 15380] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15380] close(4) = 0 [pid 15380] close(3) = 0 [pid 15380] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15380] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15380] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15380] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15380] open("./bus", O_RDONLY) = 3 [pid 15380] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15380] exit_group(0) = ? [pid 15380] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15380, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15381 attached , child_tidptr=0x5555575235d0) = 15381 [pid 15381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15381] setpgid(0, 0) = 0 [pid 15381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15381] write(3, "1000", 4) = 4 [pid 15381] close(3) = 0 [pid 15381] memfd_create("syzkaller", 0) = 3 [pid 15381] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15381] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15381] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15381] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15381] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15381] ioctl(4, LOOP_CLR_FD) = 0 [pid 15381] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15381] close(4) = 0 [pid 15381] close(3) = 0 [pid 15381] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15381] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15381] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15381] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15381] open("./bus", O_RDONLY) = 3 [pid 15381] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15381] exit_group(0) = ? [pid 15381] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15381, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15382 ./strace-static-x86_64: Process 15382 attached [pid 15382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15382] setpgid(0, 0) = 0 [pid 15382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15382] write(3, "1000", 4) = 4 [pid 15382] close(3) = 0 [pid 15382] memfd_create("syzkaller", 0) = 3 [pid 15382] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15382] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15382] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15382] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15382] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15382] ioctl(4, LOOP_CLR_FD) = 0 [pid 15382] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15382] close(4) = 0 [pid 15382] close(3) = 0 [pid 15382] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15382] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15382] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15382] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15382] open("./bus", O_RDONLY) = 3 [pid 15382] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15382] exit_group(0) = ? [pid 15382] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15382, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15383 attached , child_tidptr=0x5555575235d0) = 15383 [pid 15383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15383] setpgid(0, 0) = 0 [pid 15383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15383] write(3, "1000", 4) = 4 [pid 15383] close(3) = 0 [pid 15383] memfd_create("syzkaller", 0) = 3 [pid 15383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15383] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15383] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15383] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15383] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15383] ioctl(4, LOOP_CLR_FD) = 0 [pid 15383] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15383] close(4) = 0 [pid 15383] close(3) = 0 [pid 15383] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15383] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15383] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15383] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15383] open("./bus", O_RDONLY) = 3 [pid 15383] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15383] exit_group(0) = ? [pid 15383] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15383, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15384 ./strace-static-x86_64: Process 15384 attached [pid 15384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15384] setpgid(0, 0) = 0 [pid 15384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15384] write(3, "1000", 4) = 4 [pid 15384] close(3) = 0 [pid 15384] memfd_create("syzkaller", 0) = 3 [pid 15384] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15384] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15384] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15384] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15384] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15384] ioctl(4, LOOP_CLR_FD) = 0 [pid 15384] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15384] close(4) = 0 [pid 15384] close(3) = 0 [pid 15384] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15384] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15384] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15384] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15384] open("./bus", O_RDONLY) = 3 [pid 15384] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15384] exit_group(0) = ? [pid 15384] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15384, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15385 ./strace-static-x86_64: Process 15385 attached [pid 15385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15385] setpgid(0, 0) = 0 [pid 15385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15385] write(3, "1000", 4) = 4 [pid 15385] close(3) = 0 [pid 15385] memfd_create("syzkaller", 0) = 3 [pid 15385] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15385] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15385] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15385] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15385] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15385] ioctl(4, LOOP_CLR_FD) = 0 [pid 15385] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15385] close(4) = 0 [pid 15385] close(3) = 0 [pid 15385] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15385] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15385] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15385] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15385] open("./bus", O_RDONLY) = 3 [pid 15385] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15385] exit_group(0) = ? [pid 15385] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15385, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15386 ./strace-static-x86_64: Process 15386 attached [pid 15386] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15386] setpgid(0, 0) = 0 [pid 15386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15386] write(3, "1000", 4) = 4 [pid 15386] close(3) = 0 [pid 15386] memfd_create("syzkaller", 0) = 3 [pid 15386] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15386] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15386] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15386] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15386] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15386] ioctl(4, LOOP_CLR_FD) = 0 [pid 15386] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15386] close(4) = 0 [pid 15386] close(3) = 0 [pid 15386] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15386] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15386] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15386] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15386] open("./bus", O_RDONLY) = 3 [pid 15386] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15386] exit_group(0) = ? [pid 15386] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15386, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15387 ./strace-static-x86_64: Process 15387 attached [pid 15387] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15387] setpgid(0, 0) = 0 [pid 15387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15387] write(3, "1000", 4) = 4 [pid 15387] close(3) = 0 [pid 15387] memfd_create("syzkaller", 0) = 3 [pid 15387] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15387] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15387] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15387] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15387] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15387] ioctl(4, LOOP_CLR_FD) = 0 [pid 15387] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15387] close(4) = 0 [pid 15387] close(3) = 0 [pid 15387] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15387] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15387] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15387] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15387] open("./bus", O_RDONLY) = 3 [pid 15387] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15387] exit_group(0) = ? [pid 15387] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15387, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15388 attached , child_tidptr=0x5555575235d0) = 15388 [pid 15388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15388] setpgid(0, 0) = 0 [pid 15388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15388] write(3, "1000", 4) = 4 [pid 15388] close(3) = 0 [pid 15388] memfd_create("syzkaller", 0) = 3 [pid 15388] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15388] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15388] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15388] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15388] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15388] ioctl(4, LOOP_CLR_FD) = 0 [pid 15388] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15388] close(4) = 0 [pid 15388] close(3) = 0 [pid 15388] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15388] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15388] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15388] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15388] open("./bus", O_RDONLY) = 3 [pid 15388] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15388] exit_group(0) = ? [pid 15388] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15388, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15389 ./strace-static-x86_64: Process 15389 attached [pid 15389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15389] setpgid(0, 0) = 0 [pid 15389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15389] write(3, "1000", 4) = 4 [pid 15389] close(3) = 0 [pid 15389] memfd_create("syzkaller", 0) = 3 [pid 15389] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15389] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15389] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15389] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15389] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15389] ioctl(4, LOOP_CLR_FD) = 0 [pid 15389] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15389] close(4) = 0 [pid 15389] close(3) = 0 [pid 15389] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15389] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15389] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15389] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15389] open("./bus", O_RDONLY) = 3 [pid 15389] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15389] exit_group(0) = ? [pid 15389] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15389, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15390 attached , child_tidptr=0x5555575235d0) = 15390 [pid 15390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15390] setpgid(0, 0) = 0 [pid 15390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15390] write(3, "1000", 4) = 4 [pid 15390] close(3) = 0 [pid 15390] memfd_create("syzkaller", 0) = 3 [pid 15390] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15390] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15390] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15390] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15390] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15390] ioctl(4, LOOP_CLR_FD) = 0 [pid 15390] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15390] close(4) = 0 [pid 15390] close(3) = 0 [pid 15390] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15390] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15390] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15390] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15390] open("./bus", O_RDONLY) = 3 [pid 15390] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15390] exit_group(0) = ? [pid 15390] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15390, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15391 attached , child_tidptr=0x5555575235d0) = 15391 [pid 15391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15391] setpgid(0, 0) = 0 [pid 15391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15391] write(3, "1000", 4) = 4 [pid 15391] close(3) = 0 [pid 15391] memfd_create("syzkaller", 0) = 3 [pid 15391] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15391] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15391] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15391] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15391] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15391] ioctl(4, LOOP_CLR_FD) = 0 [pid 15391] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15391] close(4) = 0 [pid 15391] close(3) = 0 [pid 15391] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15391] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15391] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15391] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15391] open("./bus", O_RDONLY) = 3 [pid 15391] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15391] exit_group(0) = ? [pid 15391] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15391, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15392 ./strace-static-x86_64: Process 15392 attached [pid 15392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15392] setpgid(0, 0) = 0 [pid 15392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15392] write(3, "1000", 4) = 4 [pid 15392] close(3) = 0 [pid 15392] memfd_create("syzkaller", 0) = 3 [pid 15392] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15392] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15392] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15392] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15392] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15392] ioctl(4, LOOP_CLR_FD) = 0 [pid 15392] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15392] close(4) = 0 [pid 15392] close(3) = 0 [pid 15392] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15392] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15392] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15392] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15392] open("./bus", O_RDONLY) = 3 [pid 15392] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15392] exit_group(0) = ? [pid 15392] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15392, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15393 ./strace-static-x86_64: Process 15393 attached [pid 15393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15393] setpgid(0, 0) = 0 [pid 15393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15393] write(3, "1000", 4) = 4 [pid 15393] close(3) = 0 [pid 15393] memfd_create("syzkaller", 0) = 3 [pid 15393] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15393] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15393] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15393] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15393] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15393] ioctl(4, LOOP_CLR_FD) = 0 [pid 15393] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15393] close(4) = 0 [pid 15393] close(3) = 0 [pid 15393] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15393] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15393] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15393] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15393] open("./bus", O_RDONLY) = 3 [pid 15393] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15393] exit_group(0) = ? [pid 15393] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15393, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15394 attached , child_tidptr=0x5555575235d0) = 15394 [pid 15394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15394] setpgid(0, 0) = 0 [pid 15394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15394] write(3, "1000", 4) = 4 [pid 15394] close(3) = 0 [pid 15394] memfd_create("syzkaller", 0) = 3 [pid 15394] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15394] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15394] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15394] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15394] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15394] ioctl(4, LOOP_CLR_FD) = 0 [pid 15394] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15394] close(4) = 0 [pid 15394] close(3) = 0 [pid 15394] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15394] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15394] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15394] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15394] open("./bus", O_RDONLY) = 3 [pid 15394] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15394] exit_group(0) = ? [pid 15394] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15394, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15395 ./strace-static-x86_64: Process 15395 attached [pid 15395] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15395] setpgid(0, 0) = 0 [pid 15395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15395] write(3, "1000", 4) = 4 [pid 15395] close(3) = 0 [pid 15395] memfd_create("syzkaller", 0) = 3 [pid 15395] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15395] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15395] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15395] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15395] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15395] ioctl(4, LOOP_CLR_FD) = 0 [pid 15395] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15395] close(4) = 0 [pid 15395] close(3) = 0 [pid 15395] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15395] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15395] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15395] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15395] open("./bus", O_RDONLY) = 3 [pid 15395] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15395] exit_group(0) = ? [pid 15395] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15395, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15396 attached , child_tidptr=0x5555575235d0) = 15396 [pid 15396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15396] setpgid(0, 0) = 0 [pid 15396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15396] write(3, "1000", 4) = 4 [pid 15396] close(3) = 0 [pid 15396] memfd_create("syzkaller", 0) = 3 [pid 15396] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15396] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15396] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15396] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15396] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15396] ioctl(4, LOOP_CLR_FD) = 0 [pid 15396] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15396] close(4) = 0 [pid 15396] close(3) = 0 [pid 15396] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15396] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15396] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15396] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15396] open("./bus", O_RDONLY) = 3 [pid 15396] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15396] exit_group(0) = ? [pid 15396] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15396, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15397 ./strace-static-x86_64: Process 15397 attached [pid 15397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15397] setpgid(0, 0) = 0 [pid 15397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15397] write(3, "1000", 4) = 4 [pid 15397] close(3) = 0 [pid 15397] memfd_create("syzkaller", 0) = 3 [pid 15397] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15397] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15397] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15397] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15397] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15397] ioctl(4, LOOP_CLR_FD) = 0 [pid 15397] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15397] close(4) = 0 [pid 15397] close(3) = 0 [pid 15397] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15397] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15397] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15397] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15397] open("./bus", O_RDONLY) = 3 [pid 15397] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15397] exit_group(0) = ? [pid 15397] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15397, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15398 ./strace-static-x86_64: Process 15398 attached [pid 15398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15398] setpgid(0, 0) = 0 [pid 15398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15398] write(3, "1000", 4) = 4 [pid 15398] close(3) = 0 [pid 15398] memfd_create("syzkaller", 0) = 3 [pid 15398] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15398] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15398] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15398] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15398] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15398] ioctl(4, LOOP_CLR_FD) = 0 [pid 15398] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15398] close(4) = 0 [pid 15398] close(3) = 0 [pid 15398] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15398] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15398] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15398] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15398] open("./bus", O_RDONLY) = 3 [pid 15398] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15398] exit_group(0) = ? [pid 15398] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15398, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15399 ./strace-static-x86_64: Process 15399 attached [pid 15399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15399] setpgid(0, 0) = 0 [pid 15399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15399] write(3, "1000", 4) = 4 [pid 15399] close(3) = 0 [pid 15399] memfd_create("syzkaller", 0) = 3 [pid 15399] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15399] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15399] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15399] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15399] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15399] ioctl(4, LOOP_CLR_FD) = 0 [pid 15399] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15399] close(4) = 0 [pid 15399] close(3) = 0 [pid 15399] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15399] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15399] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15399] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15399] open("./bus", O_RDONLY) = 3 [pid 15399] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15399] exit_group(0) = ? [pid 15399] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15399, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15400 attached , child_tidptr=0x5555575235d0) = 15400 [pid 15400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15400] setpgid(0, 0) = 0 [pid 15400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15400] write(3, "1000", 4) = 4 [pid 15400] close(3) = 0 [pid 15400] memfd_create("syzkaller", 0) = 3 [pid 15400] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15400] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15400] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15400] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15400] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15400] ioctl(4, LOOP_CLR_FD) = 0 [pid 15400] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15400] close(4) = 0 [pid 15400] close(3) = 0 [pid 15400] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15400] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15400] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15400] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15400] open("./bus", O_RDONLY) = 3 [pid 15400] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15400] exit_group(0) = ? [pid 15400] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15400, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15401 attached , child_tidptr=0x5555575235d0) = 15401 [pid 15401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15401] setpgid(0, 0) = 0 [pid 15401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15401] write(3, "1000", 4) = 4 [pid 15401] close(3) = 0 [pid 15401] memfd_create("syzkaller", 0) = 3 [pid 15401] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15401] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15401] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15401] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15401] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15401] ioctl(4, LOOP_CLR_FD) = 0 [pid 15401] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15401] close(4) = 0 [pid 15401] close(3) = 0 [pid 15401] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15401] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15401] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15401] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15401] open("./bus", O_RDONLY) = 3 [pid 15401] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15401] exit_group(0) = ? [pid 15401] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15401, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15402 ./strace-static-x86_64: Process 15402 attached [pid 15402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15402] setpgid(0, 0) = 0 [pid 15402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15402] write(3, "1000", 4) = 4 [pid 15402] close(3) = 0 [pid 15402] memfd_create("syzkaller", 0) = 3 [pid 15402] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15402] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15402] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15402] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15402] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15402] ioctl(4, LOOP_CLR_FD) = 0 [pid 15402] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15402] close(4) = 0 [pid 15402] close(3) = 0 [pid 15402] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15402] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15402] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15402] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15402] open("./bus", O_RDONLY) = 3 [pid 15402] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15402] exit_group(0) = ? [pid 15402] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15402, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15403 attached , child_tidptr=0x5555575235d0) = 15403 [pid 15403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15403] setpgid(0, 0) = 0 [pid 15403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15403] write(3, "1000", 4) = 4 [pid 15403] close(3) = 0 [pid 15403] memfd_create("syzkaller", 0) = 3 [pid 15403] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15403] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15403] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15403] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15403] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15403] ioctl(4, LOOP_CLR_FD) = 0 [pid 15403] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15403] close(4) = 0 [pid 15403] close(3) = 0 [pid 15403] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15403] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15403] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15403] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15403] open("./bus", O_RDONLY) = 3 [pid 15403] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15403] exit_group(0) = ? [pid 15403] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15403, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15404 ./strace-static-x86_64: Process 15404 attached [pid 15404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15404] setpgid(0, 0) = 0 [pid 15404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15404] write(3, "1000", 4) = 4 [pid 15404] close(3) = 0 [pid 15404] memfd_create("syzkaller", 0) = 3 [pid 15404] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15404] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15404] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15404] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15404] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15404] ioctl(4, LOOP_CLR_FD) = 0 [pid 15404] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15404] close(4) = 0 [pid 15404] close(3) = 0 [pid 15404] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15404] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15404] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15404] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15404] open("./bus", O_RDONLY) = 3 [pid 15404] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15404] exit_group(0) = ? [pid 15404] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15404, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15405 ./strace-static-x86_64: Process 15405 attached [pid 15405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15405] setpgid(0, 0) = 0 [pid 15405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15405] write(3, "1000", 4) = 4 [pid 15405] close(3) = 0 [pid 15405] memfd_create("syzkaller", 0) = 3 [pid 15405] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15405] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15405] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15405] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15405] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15405] ioctl(4, LOOP_CLR_FD) = 0 [pid 15405] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15405] close(4) = 0 [pid 15405] close(3) = 0 [pid 15405] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15405] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15405] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15405] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15405] open("./bus", O_RDONLY) = 3 [pid 15405] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15405] exit_group(0) = ? [pid 15405] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15405, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15406 ./strace-static-x86_64: Process 15406 attached [pid 15406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15406] setpgid(0, 0) = 0 [pid 15406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15406] write(3, "1000", 4) = 4 [pid 15406] close(3) = 0 [pid 15406] memfd_create("syzkaller", 0) = 3 [pid 15406] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15406] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15406] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15406] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15406] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15406] ioctl(4, LOOP_CLR_FD) = 0 [pid 15406] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15406] close(4) = 0 [pid 15406] close(3) = 0 [pid 15406] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15406] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15406] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15406] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15406] open("./bus", O_RDONLY) = 3 [pid 15406] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15406] exit_group(0) = ? [pid 15406] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15406, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15407 ./strace-static-x86_64: Process 15407 attached [pid 15407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15407] setpgid(0, 0) = 0 [pid 15407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15407] write(3, "1000", 4) = 4 [pid 15407] close(3) = 0 [pid 15407] memfd_create("syzkaller", 0) = 3 [pid 15407] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15407] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15407] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15407] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15407] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15407] ioctl(4, LOOP_CLR_FD) = 0 [pid 15407] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15407] close(4) = 0 [pid 15407] close(3) = 0 [pid 15407] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15407] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15407] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15407] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15407] open("./bus", O_RDONLY) = 3 [pid 15407] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15407] exit_group(0) = ? [pid 15407] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15407, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15408 attached , child_tidptr=0x5555575235d0) = 15408 [pid 15408] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15408] setpgid(0, 0) = 0 [pid 15408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15408] write(3, "1000", 4) = 4 [pid 15408] close(3) = 0 [pid 15408] memfd_create("syzkaller", 0) = 3 [pid 15408] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15408] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15408] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15408] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15408] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15408] ioctl(4, LOOP_CLR_FD) = 0 [pid 15408] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15408] close(4) = 0 [pid 15408] close(3) = 0 [pid 15408] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15408] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15408] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15408] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15408] open("./bus", O_RDONLY) = 3 [pid 15408] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15408] exit_group(0) = ? [pid 15408] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15408, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15409 attached , child_tidptr=0x5555575235d0) = 15409 [pid 15409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15409] setpgid(0, 0) = 0 [pid 15409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15409] write(3, "1000", 4) = 4 [pid 15409] close(3) = 0 [pid 15409] memfd_create("syzkaller", 0) = 3 [pid 15409] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15409] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15409] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15409] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15409] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15409] ioctl(4, LOOP_CLR_FD) = 0 [pid 15409] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15409] close(4) = 0 [pid 15409] close(3) = 0 [pid 15409] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15409] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15409] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15409] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15409] open("./bus", O_RDONLY) = 3 [pid 15409] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15409] exit_group(0) = ? [pid 15409] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15409, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15410 ./strace-static-x86_64: Process 15410 attached [pid 15410] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15410] setpgid(0, 0) = 0 [pid 15410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15410] write(3, "1000", 4) = 4 [pid 15410] close(3) = 0 [pid 15410] memfd_create("syzkaller", 0) = 3 [pid 15410] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15410] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15410] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15410] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15410] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15410] ioctl(4, LOOP_CLR_FD) = 0 [pid 15410] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15410] close(4) = 0 [pid 15410] close(3) = 0 [pid 15410] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15410] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15410] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15410] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15410] open("./bus", O_RDONLY) = 3 [pid 15410] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15410] exit_group(0) = ? [pid 15410] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15410, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15411 ./strace-static-x86_64: Process 15411 attached [pid 15411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15411] setpgid(0, 0) = 0 [pid 15411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15411] write(3, "1000", 4) = 4 [pid 15411] close(3) = 0 [pid 15411] memfd_create("syzkaller", 0) = 3 [pid 15411] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15411] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15411] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15411] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15411] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15411] ioctl(4, LOOP_CLR_FD) = 0 [pid 15411] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15411] close(4) = 0 [pid 15411] close(3) = 0 [pid 15411] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15411] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15411] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15411] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15411] open("./bus", O_RDONLY) = 3 [pid 15411] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15411] exit_group(0) = ? [pid 15411] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15411, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15412 attached , child_tidptr=0x5555575235d0) = 15412 [pid 15412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15412] setpgid(0, 0) = 0 [pid 15412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15412] write(3, "1000", 4) = 4 [pid 15412] close(3) = 0 [pid 15412] memfd_create("syzkaller", 0) = 3 [pid 15412] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15412] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15412] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15412] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15412] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15412] ioctl(4, LOOP_CLR_FD) = 0 [pid 15412] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15412] close(4) = 0 [pid 15412] close(3) = 0 [pid 15412] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15412] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15412] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15412] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15412] open("./bus", O_RDONLY) = 3 [pid 15412] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15412] exit_group(0) = ? [pid 15412] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15412, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15413 ./strace-static-x86_64: Process 15413 attached [pid 15413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15413] setpgid(0, 0) = 0 [pid 15413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15413] write(3, "1000", 4) = 4 [pid 15413] close(3) = 0 [pid 15413] memfd_create("syzkaller", 0) = 3 [pid 15413] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15413] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15413] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15413] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15413] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15413] ioctl(4, LOOP_CLR_FD) = 0 [pid 15413] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15413] close(4) = 0 [pid 15413] close(3) = 0 [pid 15413] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15413] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15413] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15413] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15413] open("./bus", O_RDONLY) = 3 [pid 15413] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15413] exit_group(0) = ? [pid 15413] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15413, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15414 attached , child_tidptr=0x5555575235d0) = 15414 [pid 15414] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15414] setpgid(0, 0) = 0 [pid 15414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15414] write(3, "1000", 4) = 4 [pid 15414] close(3) = 0 [pid 15414] memfd_create("syzkaller", 0) = 3 [pid 15414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15414] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15414] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15414] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15414] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15414] ioctl(4, LOOP_CLR_FD) = 0 [pid 15414] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15414] close(4) = 0 [pid 15414] close(3) = 0 [pid 15414] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15414] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15414] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15414] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15414] open("./bus", O_RDONLY) = 3 [pid 15414] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15414] exit_group(0) = ? [pid 15414] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15414, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15415 ./strace-static-x86_64: Process 15415 attached [pid 15415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15415] setpgid(0, 0) = 0 [pid 15415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15415] write(3, "1000", 4) = 4 [pid 15415] close(3) = 0 [pid 15415] memfd_create("syzkaller", 0) = 3 [pid 15415] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15415] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15415] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15415] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15415] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15415] ioctl(4, LOOP_CLR_FD) = 0 [pid 15415] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15415] close(4) = 0 [pid 15415] close(3) = 0 [pid 15415] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15415] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15415] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15415] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15415] open("./bus", O_RDONLY) = 3 [pid 15415] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15415] exit_group(0) = ? [pid 15415] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15415, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15416 attached , child_tidptr=0x5555575235d0) = 15416 [pid 15416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15416] setpgid(0, 0) = 0 [pid 15416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15416] write(3, "1000", 4) = 4 [pid 15416] close(3) = 0 [pid 15416] memfd_create("syzkaller", 0) = 3 [pid 15416] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15416] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15416] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15416] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15416] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15416] ioctl(4, LOOP_CLR_FD) = 0 [pid 15416] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15416] close(4) = 0 [pid 15416] close(3) = 0 [pid 15416] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15416] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15416] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15416] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15416] open("./bus", O_RDONLY) = 3 [pid 15416] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15416] exit_group(0) = ? [pid 15416] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15416, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15417 attached , child_tidptr=0x5555575235d0) = 15417 [pid 15417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15417] setpgid(0, 0) = 0 [pid 15417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15417] write(3, "1000", 4) = 4 [pid 15417] close(3) = 0 [pid 15417] memfd_create("syzkaller", 0) = 3 [pid 15417] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15417] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15417] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15417] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15417] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15417] ioctl(4, LOOP_CLR_FD) = 0 [pid 15417] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15417] close(4) = 0 [pid 15417] close(3) = 0 [pid 15417] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15417] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15417] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15417] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15417] open("./bus", O_RDONLY) = 3 [pid 15417] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15417] exit_group(0) = ? [pid 15417] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15417, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15418 attached , child_tidptr=0x5555575235d0) = 15418 [pid 15418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15418] setpgid(0, 0) = 0 [pid 15418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15418] write(3, "1000", 4) = 4 [pid 15418] close(3) = 0 [pid 15418] memfd_create("syzkaller", 0) = 3 [pid 15418] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15418] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15418] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15418] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15418] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15418] ioctl(4, LOOP_CLR_FD) = 0 [pid 15418] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15418] close(4) = 0 [pid 15418] close(3) = 0 [pid 15418] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15418] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15418] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15418] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15418] open("./bus", O_RDONLY) = 3 [pid 15418] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15418] exit_group(0) = ? [pid 15418] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15418, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15419 ./strace-static-x86_64: Process 15419 attached [pid 15419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15419] setpgid(0, 0) = 0 [pid 15419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15419] write(3, "1000", 4) = 4 [pid 15419] close(3) = 0 [pid 15419] memfd_create("syzkaller", 0) = 3 [pid 15419] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15419] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15419] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15419] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15419] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15419] ioctl(4, LOOP_CLR_FD) = 0 [pid 15419] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15419] close(4) = 0 [pid 15419] close(3) = 0 [pid 15419] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15419] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15419] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15419] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15419] open("./bus", O_RDONLY) = 3 [pid 15419] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15419] exit_group(0) = ? [pid 15419] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15419, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15420 ./strace-static-x86_64: Process 15420 attached [pid 15420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15420] setpgid(0, 0) = 0 [pid 15420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15420] write(3, "1000", 4) = 4 [pid 15420] close(3) = 0 [pid 15420] memfd_create("syzkaller", 0) = 3 [pid 15420] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15420] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15420] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15420] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15420] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15420] ioctl(4, LOOP_CLR_FD) = 0 [pid 15420] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15420] close(4) = 0 [pid 15420] close(3) = 0 [pid 15420] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15420] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15420] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15420] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15420] open("./bus", O_RDONLY) = 3 [pid 15420] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15420] exit_group(0) = ? [pid 15420] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15420, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15421 ./strace-static-x86_64: Process 15421 attached [pid 15421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15421] setpgid(0, 0) = 0 [pid 15421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15421] write(3, "1000", 4) = 4 [pid 15421] close(3) = 0 [pid 15421] memfd_create("syzkaller", 0) = 3 [pid 15421] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15421] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15421] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15421] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15421] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15421] ioctl(4, LOOP_CLR_FD) = 0 [pid 15421] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15421] close(4) = 0 [pid 15421] close(3) = 0 [pid 15421] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15421] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15421] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15421] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15421] open("./bus", O_RDONLY) = 3 [pid 15421] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15421] exit_group(0) = ? [pid 15421] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15421, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15422 ./strace-static-x86_64: Process 15422 attached [pid 15422] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15422] setpgid(0, 0) = 0 [pid 15422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15422] write(3, "1000", 4) = 4 [pid 15422] close(3) = 0 [pid 15422] memfd_create("syzkaller", 0) = 3 [pid 15422] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15422] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15422] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15422] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15422] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15422] ioctl(4, LOOP_CLR_FD) = 0 [pid 15422] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15422] close(4) = 0 [pid 15422] close(3) = 0 [pid 15422] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15422] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15422] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15422] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15422] open("./bus", O_RDONLY) = 3 [pid 15422] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15422] exit_group(0) = ? [pid 15422] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15422, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15423 ./strace-static-x86_64: Process 15423 attached [pid 15423] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15423] setpgid(0, 0) = 0 [pid 15423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15423] write(3, "1000", 4) = 4 [pid 15423] close(3) = 0 [pid 15423] memfd_create("syzkaller", 0) = 3 [pid 15423] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15423] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15423] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15423] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15423] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15423] ioctl(4, LOOP_CLR_FD) = 0 [pid 15423] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15423] close(4) = 0 [pid 15423] close(3) = 0 [pid 15423] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15423] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15423] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15423] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15423] open("./bus", O_RDONLY) = 3 [pid 15423] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15423] exit_group(0) = ? [pid 15423] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15423, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15424 ./strace-static-x86_64: Process 15424 attached [pid 15424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15424] setpgid(0, 0) = 0 [pid 15424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15424] write(3, "1000", 4) = 4 [pid 15424] close(3) = 0 [pid 15424] memfd_create("syzkaller", 0) = 3 [pid 15424] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15424] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15424] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15424] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15424] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15424] ioctl(4, LOOP_CLR_FD) = 0 [pid 15424] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15424] close(4) = 0 [pid 15424] close(3) = 0 [pid 15424] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15424] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15424] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15424] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15424] open("./bus", O_RDONLY) = 3 [pid 15424] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15424] exit_group(0) = ? [pid 15424] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15424, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15425 attached , child_tidptr=0x5555575235d0) = 15425 [pid 15425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15425] setpgid(0, 0) = 0 [pid 15425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15425] write(3, "1000", 4) = 4 [pid 15425] close(3) = 0 [pid 15425] memfd_create("syzkaller", 0) = 3 [pid 15425] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15425] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15425] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15425] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15425] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15425] ioctl(4, LOOP_CLR_FD) = 0 [pid 15425] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15425] close(4) = 0 [pid 15425] close(3) = 0 [pid 15425] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15425] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15425] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15425] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15425] open("./bus", O_RDONLY) = 3 [pid 15425] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15425] exit_group(0) = ? [pid 15425] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15425, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15426 ./strace-static-x86_64: Process 15426 attached [pid 15426] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15426] setpgid(0, 0) = 0 [pid 15426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15426] write(3, "1000", 4) = 4 [pid 15426] close(3) = 0 [pid 15426] memfd_create("syzkaller", 0) = 3 [pid 15426] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15426] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15426] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15426] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15426] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15426] ioctl(4, LOOP_CLR_FD) = 0 [pid 15426] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15426] close(4) = 0 [pid 15426] close(3) = 0 [pid 15426] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15426] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15426] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15426] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15426] open("./bus", O_RDONLY) = 3 [pid 15426] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15426] exit_group(0) = ? [pid 15426] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15426, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15427 ./strace-static-x86_64: Process 15427 attached [pid 15427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15427] setpgid(0, 0) = 0 [pid 15427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15427] write(3, "1000", 4) = 4 [pid 15427] close(3) = 0 [pid 15427] memfd_create("syzkaller", 0) = 3 [pid 15427] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15427] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15427] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15427] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15427] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15427] ioctl(4, LOOP_CLR_FD) = 0 [pid 15427] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15427] close(4) = 0 [pid 15427] close(3) = 0 [pid 15427] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15427] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15427] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15427] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15427] open("./bus", O_RDONLY) = 3 [pid 15427] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15427] exit_group(0) = ? [pid 15427] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15427, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15428 ./strace-static-x86_64: Process 15428 attached [pid 15428] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15428] setpgid(0, 0) = 0 [pid 15428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15428] write(3, "1000", 4) = 4 [pid 15428] close(3) = 0 [pid 15428] memfd_create("syzkaller", 0) = 3 [pid 15428] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15428] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15428] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15428] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15428] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15428] ioctl(4, LOOP_CLR_FD) = 0 [pid 15428] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15428] close(4) = 0 [pid 15428] close(3) = 0 [pid 15428] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15428] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15428] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15428] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15428] open("./bus", O_RDONLY) = 3 [pid 15428] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15428] exit_group(0) = ? [pid 15428] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15428, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15429 ./strace-static-x86_64: Process 15429 attached [pid 15429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15429] setpgid(0, 0) = 0 [pid 15429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15429] write(3, "1000", 4) = 4 [pid 15429] close(3) = 0 [pid 15429] memfd_create("syzkaller", 0) = 3 [pid 15429] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15429] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15429] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15429] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15429] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15429] ioctl(4, LOOP_CLR_FD) = 0 [pid 15429] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15429] close(4) = 0 [pid 15429] close(3) = 0 [pid 15429] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15429] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15429] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15429] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15429] open("./bus", O_RDONLY) = 3 [pid 15429] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15429] exit_group(0) = ? [pid 15429] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15429, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15430 ./strace-static-x86_64: Process 15430 attached [pid 15430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15430] setpgid(0, 0) = 0 [pid 15430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15430] write(3, "1000", 4) = 4 [pid 15430] close(3) = 0 [pid 15430] memfd_create("syzkaller", 0) = 3 [pid 15430] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15430] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15430] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15430] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15430] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15430] ioctl(4, LOOP_CLR_FD) = 0 [pid 15430] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15430] close(4) = 0 [pid 15430] close(3) = 0 [pid 15430] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15430] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15430] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15430] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15430] open("./bus", O_RDONLY) = 3 [pid 15430] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15430] exit_group(0) = ? [pid 15430] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15430, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15431 attached , child_tidptr=0x5555575235d0) = 15431 [pid 15431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15431] setpgid(0, 0) = 0 [pid 15431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15431] write(3, "1000", 4) = 4 [pid 15431] close(3) = 0 [pid 15431] memfd_create("syzkaller", 0) = 3 [pid 15431] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15431] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15431] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15431] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15431] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15431] ioctl(4, LOOP_CLR_FD) = 0 [pid 15431] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15431] close(4) = 0 [pid 15431] close(3) = 0 [pid 15431] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15431] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15431] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15431] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15431] open("./bus", O_RDONLY) = 3 [pid 15431] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15431] exit_group(0) = ? [pid 15431] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15431, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15432 ./strace-static-x86_64: Process 15432 attached [pid 15432] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15432] setpgid(0, 0) = 0 [pid 15432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15432] write(3, "1000", 4) = 4 [pid 15432] close(3) = 0 [pid 15432] memfd_create("syzkaller", 0) = 3 [pid 15432] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15432] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15432] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15432] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15432] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15432] ioctl(4, LOOP_CLR_FD) = 0 [pid 15432] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15432] close(4) = 0 [pid 15432] close(3) = 0 [pid 15432] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15432] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15432] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15432] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15432] open("./bus", O_RDONLY) = 3 [pid 15432] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15432] exit_group(0) = ? [pid 15432] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15432, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15433 ./strace-static-x86_64: Process 15433 attached [pid 15433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15433] setpgid(0, 0) = 0 [pid 15433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15433] write(3, "1000", 4) = 4 [pid 15433] close(3) = 0 [pid 15433] memfd_create("syzkaller", 0) = 3 [pid 15433] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15433] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15433] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15433] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15433] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15433] ioctl(4, LOOP_CLR_FD) = 0 [pid 15433] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15433] close(4) = 0 [pid 15433] close(3) = 0 [pid 15433] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15433] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15433] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15433] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15433] open("./bus", O_RDONLY) = 3 [pid 15433] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15433] exit_group(0) = ? [pid 15433] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15433, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15434 attached , child_tidptr=0x5555575235d0) = 15434 [pid 15434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15434] setpgid(0, 0) = 0 [pid 15434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15434] write(3, "1000", 4) = 4 [pid 15434] close(3) = 0 [pid 15434] memfd_create("syzkaller", 0) = 3 [pid 15434] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15434] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15434] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15434] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15434] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15434] ioctl(4, LOOP_CLR_FD) = 0 [pid 15434] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15434] close(4) = 0 [pid 15434] close(3) = 0 [pid 15434] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15434] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15434] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15434] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15434] open("./bus", O_RDONLY) = 3 [pid 15434] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15434] exit_group(0) = ? [pid 15434] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15434, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15435 ./strace-static-x86_64: Process 15435 attached [pid 15435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15435] setpgid(0, 0) = 0 [pid 15435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15435] write(3, "1000", 4) = 4 [pid 15435] close(3) = 0 [pid 15435] memfd_create("syzkaller", 0) = 3 [pid 15435] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15435] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15435] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15435] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15435] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15435] ioctl(4, LOOP_CLR_FD) = 0 [pid 15435] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15435] close(4) = 0 [pid 15435] close(3) = 0 [pid 15435] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15435] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15435] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15435] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15435] open("./bus", O_RDONLY) = 3 [pid 15435] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15435] exit_group(0) = ? [pid 15435] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15435, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15436 attached , child_tidptr=0x5555575235d0) = 15436 [pid 15436] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15436] setpgid(0, 0) = 0 [pid 15436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15436] write(3, "1000", 4) = 4 [pid 15436] close(3) = 0 [pid 15436] memfd_create("syzkaller", 0) = 3 [pid 15436] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15436] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15436] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15436] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15436] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15436] ioctl(4, LOOP_CLR_FD) = 0 [pid 15436] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15436] close(4) = 0 [pid 15436] close(3) = 0 [pid 15436] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15436] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15436] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15436] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15436] open("./bus", O_RDONLY) = 3 [pid 15436] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15436] exit_group(0) = ? [pid 15436] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15436, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15437 ./strace-static-x86_64: Process 15437 attached [pid 15437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15437] setpgid(0, 0) = 0 [pid 15437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15437] write(3, "1000", 4) = 4 [pid 15437] close(3) = 0 [pid 15437] memfd_create("syzkaller", 0) = 3 [pid 15437] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15437] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15437] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15437] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15437] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15437] ioctl(4, LOOP_CLR_FD) = 0 [pid 15437] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15437] close(4) = 0 [pid 15437] close(3) = 0 [pid 15437] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15437] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15437] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15437] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15437] open("./bus", O_RDONLY) = 3 [pid 15437] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15437] exit_group(0) = ? [pid 15437] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15437, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15438 ./strace-static-x86_64: Process 15438 attached [pid 15438] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15438] setpgid(0, 0) = 0 [pid 15438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15438] write(3, "1000", 4) = 4 [pid 15438] close(3) = 0 [pid 15438] memfd_create("syzkaller", 0) = 3 [pid 15438] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15438] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15438] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15438] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15438] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15438] ioctl(4, LOOP_CLR_FD) = 0 [pid 15438] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15438] close(4) = 0 [pid 15438] close(3) = 0 [pid 15438] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15438] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15438] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15438] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15438] open("./bus", O_RDONLY) = 3 [pid 15438] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15438] exit_group(0) = ? [pid 15438] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15438, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15439 attached , child_tidptr=0x5555575235d0) = 15439 [pid 15439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15439] setpgid(0, 0) = 0 [pid 15439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15439] write(3, "1000", 4) = 4 [pid 15439] close(3) = 0 [pid 15439] memfd_create("syzkaller", 0) = 3 [pid 15439] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15439] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15439] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15439] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15439] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15439] ioctl(4, LOOP_CLR_FD) = 0 [pid 15439] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15439] close(4) = 0 [pid 15439] close(3) = 0 [pid 15439] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15439] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15439] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15439] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15439] open("./bus", O_RDONLY) = 3 [pid 15439] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15439] exit_group(0) = ? [pid 15439] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15439, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15440 attached , child_tidptr=0x5555575235d0) = 15440 [pid 15440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15440] setpgid(0, 0) = 0 [pid 15440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15440] write(3, "1000", 4) = 4 [pid 15440] close(3) = 0 [pid 15440] memfd_create("syzkaller", 0) = 3 [pid 15440] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15440] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15440] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15440] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15440] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15440] ioctl(4, LOOP_CLR_FD) = 0 [pid 15440] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15440] close(4) = 0 [pid 15440] close(3) = 0 [pid 15440] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15440] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15440] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15440] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15440] open("./bus", O_RDONLY) = 3 [pid 15440] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15440] exit_group(0) = ? [pid 15440] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15440, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15441 attached , child_tidptr=0x5555575235d0) = 15441 [pid 15441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15441] setpgid(0, 0) = 0 [pid 15441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15441] write(3, "1000", 4) = 4 [pid 15441] close(3) = 0 [pid 15441] memfd_create("syzkaller", 0) = 3 [pid 15441] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15441] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15441] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15441] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15441] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15441] ioctl(4, LOOP_CLR_FD) = 0 [pid 15441] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15441] close(4) = 0 [pid 15441] close(3) = 0 [pid 15441] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15441] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15441] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15441] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15441] open("./bus", O_RDONLY) = 3 [pid 15441] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15441] exit_group(0) = ? [pid 15441] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15441, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15442 ./strace-static-x86_64: Process 15442 attached [pid 15442] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15442] setpgid(0, 0) = 0 [pid 15442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15442] write(3, "1000", 4) = 4 [pid 15442] close(3) = 0 [pid 15442] memfd_create("syzkaller", 0) = 3 [pid 15442] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15442] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15442] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15442] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15442] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15442] ioctl(4, LOOP_CLR_FD) = 0 [pid 15442] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15442] close(4) = 0 [pid 15442] close(3) = 0 [pid 15442] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15442] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15442] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15442] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15442] open("./bus", O_RDONLY) = 3 [pid 15442] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15442] exit_group(0) = ? [pid 15442] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15442, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15443 attached , child_tidptr=0x5555575235d0) = 15443 [pid 15443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15443] setpgid(0, 0) = 0 [pid 15443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15443] write(3, "1000", 4) = 4 [pid 15443] close(3) = 0 [pid 15443] memfd_create("syzkaller", 0) = 3 [pid 15443] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15443] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15443] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15443] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15443] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15443] ioctl(4, LOOP_CLR_FD) = 0 [pid 15443] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15443] close(4) = 0 [pid 15443] close(3) = 0 [pid 15443] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15443] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15443] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15443] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15443] open("./bus", O_RDONLY) = 3 [pid 15443] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15443] exit_group(0) = ? [pid 15443] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15443, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15444 ./strace-static-x86_64: Process 15444 attached [pid 15444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15444] setpgid(0, 0) = 0 [pid 15444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15444] write(3, "1000", 4) = 4 [pid 15444] close(3) = 0 [pid 15444] memfd_create("syzkaller", 0) = 3 [pid 15444] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15444] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15444] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15444] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15444] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15444] ioctl(4, LOOP_CLR_FD) = 0 [pid 15444] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15444] close(4) = 0 [pid 15444] close(3) = 0 [pid 15444] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15444] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15444] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15444] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15444] open("./bus", O_RDONLY) = 3 [pid 15444] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15444] exit_group(0) = ? [pid 15444] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15444, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15445 ./strace-static-x86_64: Process 15445 attached [pid 15445] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15445] setpgid(0, 0) = 0 [pid 15445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15445] write(3, "1000", 4) = 4 [pid 15445] close(3) = 0 [pid 15445] memfd_create("syzkaller", 0) = 3 [pid 15445] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15445] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15445] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15445] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15445] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15445] ioctl(4, LOOP_CLR_FD) = 0 [pid 15445] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15445] close(4) = 0 [pid 15445] close(3) = 0 [pid 15445] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15445] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15445] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15445] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15445] open("./bus", O_RDONLY) = 3 [pid 15445] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15445] exit_group(0) = ? [pid 15445] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15445, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15446 ./strace-static-x86_64: Process 15446 attached [pid 15446] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15446] setpgid(0, 0) = 0 [pid 15446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15446] write(3, "1000", 4) = 4 [pid 15446] close(3) = 0 [pid 15446] memfd_create("syzkaller", 0) = 3 [pid 15446] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15446] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15446] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15446] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15446] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15446] ioctl(4, LOOP_CLR_FD) = 0 [pid 15446] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15446] close(4) = 0 [pid 15446] close(3) = 0 [pid 15446] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15446] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15446] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15446] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15446] open("./bus", O_RDONLY) = 3 [pid 15446] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15446] exit_group(0) = ? [pid 15446] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15446, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15447 attached , child_tidptr=0x5555575235d0) = 15447 [pid 15447] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15447] setpgid(0, 0) = 0 [pid 15447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15447] write(3, "1000", 4) = 4 [pid 15447] close(3) = 0 [pid 15447] memfd_create("syzkaller", 0) = 3 [pid 15447] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15447] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15447] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15447] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15447] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15447] ioctl(4, LOOP_CLR_FD) = 0 [pid 15447] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15447] close(4) = 0 [pid 15447] close(3) = 0 [pid 15447] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15447] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15447] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15447] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15447] open("./bus", O_RDONLY) = 3 [pid 15447] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15447] exit_group(0) = ? [pid 15447] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15447, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15448 attached , child_tidptr=0x5555575235d0) = 15448 [pid 15448] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15448] setpgid(0, 0) = 0 [pid 15448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15448] write(3, "1000", 4) = 4 [pid 15448] close(3) = 0 [pid 15448] memfd_create("syzkaller", 0) = 3 [pid 15448] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15448] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15448] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15448] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15448] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15448] ioctl(4, LOOP_CLR_FD) = 0 [pid 15448] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15448] close(4) = 0 [pid 15448] close(3) = 0 [pid 15448] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15448] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15448] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15448] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15448] open("./bus", O_RDONLY) = 3 [pid 15448] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15448] exit_group(0) = ? [pid 15448] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15448, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15449 attached , child_tidptr=0x5555575235d0) = 15449 [pid 15449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15449] setpgid(0, 0) = 0 [pid 15449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15449] write(3, "1000", 4) = 4 [pid 15449] close(3) = 0 [pid 15449] memfd_create("syzkaller", 0) = 3 [pid 15449] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15449] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15449] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15449] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15449] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15449] ioctl(4, LOOP_CLR_FD) = 0 [pid 15449] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15449] close(4) = 0 [pid 15449] close(3) = 0 [pid 15449] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15449] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15449] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15449] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15449] open("./bus", O_RDONLY) = 3 [pid 15449] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15449] exit_group(0) = ? [pid 15449] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15449, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15450 attached , child_tidptr=0x5555575235d0) = 15450 [pid 15450] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15450] setpgid(0, 0) = 0 [pid 15450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15450] write(3, "1000", 4) = 4 [pid 15450] close(3) = 0 [pid 15450] memfd_create("syzkaller", 0) = 3 [pid 15450] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15450] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15450] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15450] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15450] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15450] ioctl(4, LOOP_CLR_FD) = 0 [pid 15450] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15450] close(4) = 0 [pid 15450] close(3) = 0 [pid 15450] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15450] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15450] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15450] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15450] open("./bus", O_RDONLY) = 3 [pid 15450] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15450] exit_group(0) = ? [pid 15450] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15450, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15451 ./strace-static-x86_64: Process 15451 attached [pid 15451] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15451] setpgid(0, 0) = 0 [pid 15451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15451] write(3, "1000", 4) = 4 [pid 15451] close(3) = 0 [pid 15451] memfd_create("syzkaller", 0) = 3 [pid 15451] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15451] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15451] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15451] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15451] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15451] ioctl(4, LOOP_CLR_FD) = 0 [pid 15451] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15451] close(4) = 0 [pid 15451] close(3) = 0 [pid 15451] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15451] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15451] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15451] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15451] open("./bus", O_RDONLY) = 3 [pid 15451] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15451] exit_group(0) = ? [pid 15451] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15451, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15452 ./strace-static-x86_64: Process 15452 attached [pid 15452] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15452] setpgid(0, 0) = 0 [pid 15452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15452] write(3, "1000", 4) = 4 [pid 15452] close(3) = 0 [pid 15452] memfd_create("syzkaller", 0) = 3 [pid 15452] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15452] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15452] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15452] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15452] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15452] ioctl(4, LOOP_CLR_FD) = 0 [pid 15452] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15452] close(4) = 0 [pid 15452] close(3) = 0 [pid 15452] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15452] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15452] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15452] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15452] open("./bus", O_RDONLY) = 3 [pid 15452] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15452] exit_group(0) = ? [pid 15452] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15452, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15453 attached , child_tidptr=0x5555575235d0) = 15453 [pid 15453] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15453] setpgid(0, 0) = 0 [pid 15453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15453] write(3, "1000", 4) = 4 [pid 15453] close(3) = 0 [pid 15453] memfd_create("syzkaller", 0) = 3 [pid 15453] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15453] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15453] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15453] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15453] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15453] ioctl(4, LOOP_CLR_FD) = 0 [pid 15453] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15453] close(4) = 0 [pid 15453] close(3) = 0 [pid 15453] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15453] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15453] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15453] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15453] open("./bus", O_RDONLY) = 3 [pid 15453] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15453] exit_group(0) = ? [pid 15453] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15453, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15454 attached , child_tidptr=0x5555575235d0) = 15454 [pid 15454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15454] setpgid(0, 0) = 0 [pid 15454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15454] write(3, "1000", 4) = 4 [pid 15454] close(3) = 0 [pid 15454] memfd_create("syzkaller", 0) = 3 [pid 15454] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15454] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15454] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15454] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15454] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15454] ioctl(4, LOOP_CLR_FD) = 0 [pid 15454] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15454] close(4) = 0 [pid 15454] close(3) = 0 [pid 15454] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15454] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15454] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15454] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15454] open("./bus", O_RDONLY) = 3 [pid 15454] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15454] exit_group(0) = ? [pid 15454] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15454, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15455 ./strace-static-x86_64: Process 15455 attached [pid 15455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15455] setpgid(0, 0) = 0 [pid 15455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15455] write(3, "1000", 4) = 4 [pid 15455] close(3) = 0 [pid 15455] memfd_create("syzkaller", 0) = 3 [pid 15455] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15455] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15455] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15455] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15455] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15455] ioctl(4, LOOP_CLR_FD) = 0 [pid 15455] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15455] close(4) = 0 [pid 15455] close(3) = 0 [pid 15455] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15455] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15455] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15455] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15455] open("./bus", O_RDONLY) = 3 [pid 15455] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15455] exit_group(0) = ? [pid 15455] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15455, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15456 ./strace-static-x86_64: Process 15456 attached [pid 15456] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15456] setpgid(0, 0) = 0 [pid 15456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15456] write(3, "1000", 4) = 4 [pid 15456] close(3) = 0 [pid 15456] memfd_create("syzkaller", 0) = 3 [pid 15456] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15456] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15456] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15456] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15456] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15456] ioctl(4, LOOP_CLR_FD) = 0 [pid 15456] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15456] close(4) = 0 [pid 15456] close(3) = 0 [pid 15456] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15456] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15456] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15456] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15456] open("./bus", O_RDONLY) = 3 [pid 15456] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15456] exit_group(0) = ? [pid 15456] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15456, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15457 attached , child_tidptr=0x5555575235d0) = 15457 [pid 15457] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15457] setpgid(0, 0) = 0 [pid 15457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15457] write(3, "1000", 4) = 4 [pid 15457] close(3) = 0 [pid 15457] memfd_create("syzkaller", 0) = 3 [pid 15457] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15457] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15457] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15457] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15457] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15457] ioctl(4, LOOP_CLR_FD) = 0 [pid 15457] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15457] close(4) = 0 [pid 15457] close(3) = 0 [pid 15457] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15457] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15457] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15457] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15457] open("./bus", O_RDONLY) = 3 [pid 15457] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15457] exit_group(0) = ? [pid 15457] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15457, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15458 attached , child_tidptr=0x5555575235d0) = 15458 [pid 15458] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15458] setpgid(0, 0) = 0 [pid 15458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15458] write(3, "1000", 4) = 4 [pid 15458] close(3) = 0 [pid 15458] memfd_create("syzkaller", 0) = 3 [pid 15458] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15458] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15458] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15458] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15458] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15458] ioctl(4, LOOP_CLR_FD) = 0 [pid 15458] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15458] close(4) = 0 [pid 15458] close(3) = 0 [pid 15458] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15458] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15458] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15458] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15458] open("./bus", O_RDONLY) = 3 [pid 15458] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15458] exit_group(0) = ? [pid 15458] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15458, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15459 ./strace-static-x86_64: Process 15459 attached [pid 15459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15459] setpgid(0, 0) = 0 [pid 15459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15459] write(3, "1000", 4) = 4 [pid 15459] close(3) = 0 [pid 15459] memfd_create("syzkaller", 0) = 3 [pid 15459] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15459] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15459] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15459] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15459] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15459] ioctl(4, LOOP_CLR_FD) = 0 [pid 15459] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15459] close(4) = 0 [pid 15459] close(3) = 0 [pid 15459] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15459] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15459] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15459] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15459] open("./bus", O_RDONLY) = 3 [pid 15459] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15459] exit_group(0) = ? [pid 15459] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15459, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15460 ./strace-static-x86_64: Process 15460 attached [pid 15460] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15460] setpgid(0, 0) = 0 [pid 15460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15460] write(3, "1000", 4) = 4 [pid 15460] close(3) = 0 [pid 15460] memfd_create("syzkaller", 0) = 3 [pid 15460] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15460] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15460] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15460] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15460] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15460] ioctl(4, LOOP_CLR_FD) = 0 [pid 15460] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15460] close(4) = 0 [pid 15460] close(3) = 0 [pid 15460] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15460] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15460] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15460] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15460] open("./bus", O_RDONLY) = 3 [pid 15460] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15460] exit_group(0) = ? [pid 15460] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15460, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15461 attached , child_tidptr=0x5555575235d0) = 15461 [pid 15461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15461] setpgid(0, 0) = 0 [pid 15461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15461] write(3, "1000", 4) = 4 [pid 15461] close(3) = 0 [pid 15461] memfd_create("syzkaller", 0) = 3 [pid 15461] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15461] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15461] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15461] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15461] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15461] ioctl(4, LOOP_CLR_FD) = 0 [pid 15461] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15461] close(4) = 0 [pid 15461] close(3) = 0 [pid 15461] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15461] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15461] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15461] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15461] open("./bus", O_RDONLY) = 3 [pid 15461] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15461] exit_group(0) = ? [pid 15461] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15461, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15462 attached , child_tidptr=0x5555575235d0) = 15462 [pid 15462] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15462] setpgid(0, 0) = 0 [pid 15462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15462] write(3, "1000", 4) = 4 [pid 15462] close(3) = 0 [pid 15462] memfd_create("syzkaller", 0) = 3 [pid 15462] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15462] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15462] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15462] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15462] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15462] ioctl(4, LOOP_CLR_FD) = 0 [pid 15462] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15462] close(4) = 0 [pid 15462] close(3) = 0 [pid 15462] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15462] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15462] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15462] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15462] open("./bus", O_RDONLY) = 3 [pid 15462] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15462] exit_group(0) = ? [pid 15462] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15462, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15463 ./strace-static-x86_64: Process 15463 attached [pid 15463] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15463] setpgid(0, 0) = 0 [pid 15463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15463] write(3, "1000", 4) = 4 [pid 15463] close(3) = 0 [pid 15463] memfd_create("syzkaller", 0) = 3 [pid 15463] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15463] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15463] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15463] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15463] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15463] ioctl(4, LOOP_CLR_FD) = 0 [pid 15463] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15463] close(4) = 0 [pid 15463] close(3) = 0 [pid 15463] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15463] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15463] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15463] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15463] open("./bus", O_RDONLY) = 3 [pid 15463] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15463] exit_group(0) = ? [pid 15463] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15463, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15464 attached , child_tidptr=0x5555575235d0) = 15464 [pid 15464] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15464] setpgid(0, 0) = 0 [pid 15464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15464] write(3, "1000", 4) = 4 [pid 15464] close(3) = 0 [pid 15464] memfd_create("syzkaller", 0) = 3 [pid 15464] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15464] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15464] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15464] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15464] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15464] ioctl(4, LOOP_CLR_FD) = 0 [pid 15464] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15464] close(4) = 0 [pid 15464] close(3) = 0 [pid 15464] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15464] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15464] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15464] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15464] open("./bus", O_RDONLY) = 3 [pid 15464] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15464] exit_group(0) = ? [pid 15464] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15464, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15465 ./strace-static-x86_64: Process 15465 attached [pid 15465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15465] setpgid(0, 0) = 0 [pid 15465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15465] write(3, "1000", 4) = 4 [pid 15465] close(3) = 0 [pid 15465] memfd_create("syzkaller", 0) = 3 [pid 15465] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15465] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15465] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15465] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15465] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15465] ioctl(4, LOOP_CLR_FD) = 0 [pid 15465] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15465] close(4) = 0 [pid 15465] close(3) = 0 [pid 15465] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15465] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15465] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15465] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15465] open("./bus", O_RDONLY) = 3 [pid 15465] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15465] exit_group(0) = ? [pid 15465] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15465, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15466 ./strace-static-x86_64: Process 15466 attached [pid 15466] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15466] setpgid(0, 0) = 0 [pid 15466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15466] write(3, "1000", 4) = 4 [pid 15466] close(3) = 0 [pid 15466] memfd_create("syzkaller", 0) = 3 [pid 15466] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15466] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15466] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15466] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15466] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15466] ioctl(4, LOOP_CLR_FD) = 0 [pid 15466] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15466] close(4) = 0 [pid 15466] close(3) = 0 [pid 15466] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15466] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15466] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15466] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15466] open("./bus", O_RDONLY) = 3 [pid 15466] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15466] exit_group(0) = ? [pid 15466] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15466, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15467 attached , child_tidptr=0x5555575235d0) = 15467 [pid 15467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15467] setpgid(0, 0) = 0 [pid 15467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15467] write(3, "1000", 4) = 4 [pid 15467] close(3) = 0 [pid 15467] memfd_create("syzkaller", 0) = 3 [pid 15467] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15467] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15467] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15467] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15467] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15467] ioctl(4, LOOP_CLR_FD) = 0 [pid 15467] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15467] close(4) = 0 [pid 15467] close(3) = 0 [pid 15467] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15467] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15467] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15467] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15467] open("./bus", O_RDONLY) = 3 [pid 15467] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15467] exit_group(0) = ? [pid 15467] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15467, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15468 ./strace-static-x86_64: Process 15468 attached [pid 15468] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15468] setpgid(0, 0) = 0 [pid 15468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15468] write(3, "1000", 4) = 4 [pid 15468] close(3) = 0 [pid 15468] memfd_create("syzkaller", 0) = 3 [pid 15468] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15468] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15468] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15468] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15468] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15468] ioctl(4, LOOP_CLR_FD) = 0 [pid 15468] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15468] close(4) = 0 [pid 15468] close(3) = 0 [pid 15468] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15468] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15468] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15468] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15468] open("./bus", O_RDONLY) = 3 [pid 15468] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15468] exit_group(0) = ? [pid 15468] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15468, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15469 attached , child_tidptr=0x5555575235d0) = 15469 [pid 15469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15469] setpgid(0, 0) = 0 [pid 15469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15469] write(3, "1000", 4) = 4 [pid 15469] close(3) = 0 [pid 15469] memfd_create("syzkaller", 0) = 3 [pid 15469] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15469] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15469] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15469] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15469] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15469] ioctl(4, LOOP_CLR_FD) = 0 [pid 15469] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15469] close(4) = 0 [pid 15469] close(3) = 0 [pid 15469] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15469] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15469] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15469] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15469] open("./bus", O_RDONLY) = 3 [pid 15469] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15469] exit_group(0) = ? [pid 15469] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15469, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15470 ./strace-static-x86_64: Process 15470 attached [pid 15470] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15470] setpgid(0, 0) = 0 [pid 15470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15470] write(3, "1000", 4) = 4 [pid 15470] close(3) = 0 [pid 15470] memfd_create("syzkaller", 0) = 3 [pid 15470] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15470] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15470] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15470] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15470] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15470] ioctl(4, LOOP_CLR_FD) = 0 [pid 15470] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15470] close(4) = 0 [pid 15470] close(3) = 0 [pid 15470] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15470] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15470] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15470] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15470] open("./bus", O_RDONLY) = 3 [pid 15470] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15470] exit_group(0) = ? [pid 15470] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15470, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15471 ./strace-static-x86_64: Process 15471 attached [pid 15471] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15471] setpgid(0, 0) = 0 [pid 15471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15471] write(3, "1000", 4) = 4 [pid 15471] close(3) = 0 [pid 15471] memfd_create("syzkaller", 0) = 3 [pid 15471] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15471] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15471] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15471] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15471] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15471] ioctl(4, LOOP_CLR_FD) = 0 [pid 15471] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15471] close(4) = 0 [pid 15471] close(3) = 0 [pid 15471] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15471] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15471] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15471] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15471] open("./bus", O_RDONLY) = 3 [pid 15471] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15471] exit_group(0) = ? [pid 15471] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15471, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15472 attached , child_tidptr=0x5555575235d0) = 15472 [pid 15472] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15472] setpgid(0, 0) = 0 [pid 15472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15472] write(3, "1000", 4) = 4 [pid 15472] close(3) = 0 [pid 15472] memfd_create("syzkaller", 0) = 3 [pid 15472] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15472] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15472] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15472] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15472] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15472] ioctl(4, LOOP_CLR_FD) = 0 [pid 15472] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15472] close(4) = 0 [pid 15472] close(3) = 0 [pid 15472] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15472] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15472] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15472] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15472] open("./bus", O_RDONLY) = 3 [pid 15472] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15472] exit_group(0) = ? [pid 15472] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15472, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15473 ./strace-static-x86_64: Process 15473 attached [pid 15473] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15473] setpgid(0, 0) = 0 [pid 15473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15473] write(3, "1000", 4) = 4 [pid 15473] close(3) = 0 [pid 15473] memfd_create("syzkaller", 0) = 3 [pid 15473] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15473] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15473] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15473] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15473] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15473] ioctl(4, LOOP_CLR_FD) = 0 [pid 15473] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15473] close(4) = 0 [pid 15473] close(3) = 0 [pid 15473] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15473] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15473] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15473] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15473] open("./bus", O_RDONLY) = 3 [pid 15473] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15473] exit_group(0) = ? [pid 15473] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15473, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15474 attached , child_tidptr=0x5555575235d0) = 15474 [pid 15474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15474] setpgid(0, 0) = 0 [pid 15474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15474] write(3, "1000", 4) = 4 [pid 15474] close(3) = 0 [pid 15474] memfd_create("syzkaller", 0) = 3 [pid 15474] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15474] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15474] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15474] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15474] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15474] ioctl(4, LOOP_CLR_FD) = 0 [pid 15474] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15474] close(4) = 0 [pid 15474] close(3) = 0 [pid 15474] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15474] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15474] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15474] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15474] open("./bus", O_RDONLY) = 3 [pid 15474] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15474] exit_group(0) = ? [pid 15474] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15474, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15475 attached , child_tidptr=0x5555575235d0) = 15475 [pid 15475] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15475] setpgid(0, 0) = 0 [pid 15475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15475] write(3, "1000", 4) = 4 [pid 15475] close(3) = 0 [pid 15475] memfd_create("syzkaller", 0) = 3 [pid 15475] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15475] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15475] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15475] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15475] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15475] ioctl(4, LOOP_CLR_FD) = 0 [pid 15475] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15475] close(4) = 0 [pid 15475] close(3) = 0 [pid 15475] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15475] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15475] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15475] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15475] open("./bus", O_RDONLY) = 3 [pid 15475] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15475] exit_group(0) = ? [pid 15475] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15475, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15476 ./strace-static-x86_64: Process 15476 attached [pid 15476] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15476] setpgid(0, 0) = 0 [pid 15476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15476] write(3, "1000", 4) = 4 [pid 15476] close(3) = 0 [pid 15476] memfd_create("syzkaller", 0) = 3 [pid 15476] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15476] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15476] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15476] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15476] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15476] ioctl(4, LOOP_CLR_FD) = 0 [pid 15476] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15476] close(4) = 0 [pid 15476] close(3) = 0 [pid 15476] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15476] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15476] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15476] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15476] open("./bus", O_RDONLY) = 3 [pid 15476] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15476] exit_group(0) = ? [pid 15476] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15476, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15477 ./strace-static-x86_64: Process 15477 attached [pid 15477] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15477] setpgid(0, 0) = 0 [pid 15477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15477] write(3, "1000", 4) = 4 [pid 15477] close(3) = 0 [pid 15477] memfd_create("syzkaller", 0) = 3 [pid 15477] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15477] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15477] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15477] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15477] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15477] ioctl(4, LOOP_CLR_FD) = 0 [pid 15477] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15477] close(4) = 0 [pid 15477] close(3) = 0 [pid 15477] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15477] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15477] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15477] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15477] open("./bus", O_RDONLY) = 3 [pid 15477] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15477] exit_group(0) = ? [pid 15477] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15477, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15478 attached , child_tidptr=0x5555575235d0) = 15478 [pid 15478] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15478] setpgid(0, 0) = 0 [pid 15478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15478] write(3, "1000", 4) = 4 [pid 15478] close(3) = 0 [pid 15478] memfd_create("syzkaller", 0) = 3 [pid 15478] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15478] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15478] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15478] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15478] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15478] ioctl(4, LOOP_CLR_FD) = 0 [pid 15478] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15478] close(4) = 0 [pid 15478] close(3) = 0 [pid 15478] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15478] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15478] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15478] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15478] open("./bus", O_RDONLY) = 3 [pid 15478] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15478] exit_group(0) = ? [pid 15478] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15478, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15479 ./strace-static-x86_64: Process 15479 attached [pid 15479] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15479] setpgid(0, 0) = 0 [pid 15479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15479] write(3, "1000", 4) = 4 [pid 15479] close(3) = 0 [pid 15479] memfd_create("syzkaller", 0) = 3 [pid 15479] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15479] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15479] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15479] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15479] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15479] ioctl(4, LOOP_CLR_FD) = 0 [pid 15479] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15479] close(4) = 0 [pid 15479] close(3) = 0 [pid 15479] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15479] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15479] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15479] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15479] open("./bus", O_RDONLY) = 3 [pid 15479] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15479] exit_group(0) = ? [pid 15479] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15479, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15480 attached , child_tidptr=0x5555575235d0) = 15480 [pid 15480] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15480] setpgid(0, 0) = 0 [pid 15480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15480] write(3, "1000", 4) = 4 [pid 15480] close(3) = 0 [pid 15480] memfd_create("syzkaller", 0) = 3 [pid 15480] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15480] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15480] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15480] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15480] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15480] ioctl(4, LOOP_CLR_FD) = 0 [pid 15480] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15480] close(4) = 0 [pid 15480] close(3) = 0 [pid 15480] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15480] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15480] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15480] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15480] open("./bus", O_RDONLY) = 3 [pid 15480] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15480] exit_group(0) = ? [pid 15480] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15480, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15481 ./strace-static-x86_64: Process 15481 attached [pid 15481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15481] setpgid(0, 0) = 0 [pid 15481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15481] write(3, "1000", 4) = 4 [pid 15481] close(3) = 0 [pid 15481] memfd_create("syzkaller", 0) = 3 [pid 15481] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15481] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15481] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15481] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15481] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15481] ioctl(4, LOOP_CLR_FD) = 0 [pid 15481] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15481] close(4) = 0 [pid 15481] close(3) = 0 [pid 15481] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15481] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15481] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15481] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15481] open("./bus", O_RDONLY) = 3 [pid 15481] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15481] exit_group(0) = ? [pid 15481] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15481, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15482 attached , child_tidptr=0x5555575235d0) = 15482 [pid 15482] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15482] setpgid(0, 0) = 0 [pid 15482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15482] write(3, "1000", 4) = 4 [pid 15482] close(3) = 0 [pid 15482] memfd_create("syzkaller", 0) = 3 [pid 15482] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15482] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15482] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15482] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15482] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15482] ioctl(4, LOOP_CLR_FD) = 0 [pid 15482] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15482] close(4) = 0 [pid 15482] close(3) = 0 [pid 15482] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15482] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15482] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15482] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15482] open("./bus", O_RDONLY) = 3 [pid 15482] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15482] exit_group(0) = ? [pid 15482] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15482, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15483 ./strace-static-x86_64: Process 15483 attached [pid 15483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15483] setpgid(0, 0) = 0 [pid 15483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15483] write(3, "1000", 4) = 4 [pid 15483] close(3) = 0 [pid 15483] memfd_create("syzkaller", 0) = 3 [pid 15483] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15483] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15483] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15483] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15483] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15483] ioctl(4, LOOP_CLR_FD) = 0 [pid 15483] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15483] close(4) = 0 [pid 15483] close(3) = 0 [pid 15483] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15483] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15483] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15483] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15483] open("./bus", O_RDONLY) = 3 [pid 15483] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15483] exit_group(0) = ? [pid 15483] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15483, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15484 ./strace-static-x86_64: Process 15484 attached [pid 15484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15484] setpgid(0, 0) = 0 [pid 15484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15484] write(3, "1000", 4) = 4 [pid 15484] close(3) = 0 [pid 15484] memfd_create("syzkaller", 0) = 3 [pid 15484] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15484] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15484] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15484] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15484] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15484] ioctl(4, LOOP_CLR_FD) = 0 [pid 15484] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15484] close(4) = 0 [pid 15484] close(3) = 0 [pid 15484] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15484] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15484] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15484] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15484] open("./bus", O_RDONLY) = 3 [pid 15484] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15484] exit_group(0) = ? [pid 15484] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15484, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15485 ./strace-static-x86_64: Process 15485 attached [pid 15485] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15485] setpgid(0, 0) = 0 [pid 15485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15485] write(3, "1000", 4) = 4 [pid 15485] close(3) = 0 [pid 15485] memfd_create("syzkaller", 0) = 3 [pid 15485] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15485] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15485] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15485] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15485] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15485] ioctl(4, LOOP_CLR_FD) = 0 [pid 15485] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15485] close(4) = 0 [pid 15485] close(3) = 0 [pid 15485] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15485] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15485] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15485] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15485] open("./bus", O_RDONLY) = 3 [pid 15485] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15485] exit_group(0) = ? [pid 15485] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15485, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15486 ./strace-static-x86_64: Process 15486 attached [pid 15486] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15486] setpgid(0, 0) = 0 [pid 15486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15486] write(3, "1000", 4) = 4 [pid 15486] close(3) = 0 [pid 15486] memfd_create("syzkaller", 0) = 3 [pid 15486] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15486] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15486] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15486] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15486] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15486] ioctl(4, LOOP_CLR_FD) = 0 [pid 15486] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15486] close(4) = 0 [pid 15486] close(3) = 0 [pid 15486] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15486] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15486] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15486] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15486] open("./bus", O_RDONLY) = 3 [pid 15486] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15486] exit_group(0) = ? [pid 15486] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15486, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15487 attached , child_tidptr=0x5555575235d0) = 15487 [pid 15487] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15487] setpgid(0, 0) = 0 [pid 15487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15487] write(3, "1000", 4) = 4 [pid 15487] close(3) = 0 [pid 15487] memfd_create("syzkaller", 0) = 3 [pid 15487] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15487] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15487] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15487] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15487] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15487] ioctl(4, LOOP_CLR_FD) = 0 [pid 15487] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15487] close(4) = 0 [pid 15487] close(3) = 0 [pid 15487] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15487] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15487] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15487] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15487] open("./bus", O_RDONLY) = 3 [pid 15487] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15487] exit_group(0) = ? [pid 15487] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15487, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15488 ./strace-static-x86_64: Process 15488 attached [pid 15488] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15488] setpgid(0, 0) = 0 [pid 15488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15488] write(3, "1000", 4) = 4 [pid 15488] close(3) = 0 [pid 15488] memfd_create("syzkaller", 0) = 3 [pid 15488] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15488] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15488] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15488] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15488] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15488] ioctl(4, LOOP_CLR_FD) = 0 [pid 15488] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15488] close(4) = 0 [pid 15488] close(3) = 0 [pid 15488] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15488] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15488] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15488] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15488] open("./bus", O_RDONLY) = 3 [pid 15488] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15488] exit_group(0) = ? [pid 15488] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15488, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15489 ./strace-static-x86_64: Process 15489 attached [pid 15489] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15489] setpgid(0, 0) = 0 [pid 15489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15489] write(3, "1000", 4) = 4 [pid 15489] close(3) = 0 [pid 15489] memfd_create("syzkaller", 0) = 3 [pid 15489] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15489] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15489] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15489] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15489] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15489] ioctl(4, LOOP_CLR_FD) = 0 [pid 15489] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15489] close(4) = 0 [pid 15489] close(3) = 0 [pid 15489] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15489] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15489] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15489] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15489] open("./bus", O_RDONLY) = 3 [pid 15489] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15489] exit_group(0) = ? [pid 15489] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15489, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15490 ./strace-static-x86_64: Process 15490 attached [pid 15490] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15490] setpgid(0, 0) = 0 [pid 15490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15490] write(3, "1000", 4) = 4 [pid 15490] close(3) = 0 [pid 15490] memfd_create("syzkaller", 0) = 3 [pid 15490] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15490] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15490] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15490] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15490] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15490] ioctl(4, LOOP_CLR_FD) = 0 [pid 15490] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15490] close(4) = 0 [pid 15490] close(3) = 0 [pid 15490] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15490] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15490] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15490] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15490] open("./bus", O_RDONLY) = 3 [pid 15490] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15490] exit_group(0) = ? [pid 15490] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15490, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15491 attached , child_tidptr=0x5555575235d0) = 15491 [pid 15491] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15491] setpgid(0, 0) = 0 [pid 15491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15491] write(3, "1000", 4) = 4 [pid 15491] close(3) = 0 [pid 15491] memfd_create("syzkaller", 0) = 3 [pid 15491] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15491] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15491] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15491] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15491] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15491] ioctl(4, LOOP_CLR_FD) = 0 [pid 15491] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15491] close(4) = 0 [pid 15491] close(3) = 0 [pid 15491] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15491] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15491] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15491] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15491] open("./bus", O_RDONLY) = 3 [pid 15491] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15491] exit_group(0) = ? [pid 15491] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15491, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15492 ./strace-static-x86_64: Process 15492 attached [pid 15492] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15492] setpgid(0, 0) = 0 [pid 15492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15492] write(3, "1000", 4) = 4 [pid 15492] close(3) = 0 [pid 15492] memfd_create("syzkaller", 0) = 3 [pid 15492] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15492] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15492] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15492] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15492] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15492] ioctl(4, LOOP_CLR_FD) = 0 [pid 15492] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15492] close(4) = 0 [pid 15492] close(3) = 0 [pid 15492] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15492] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15492] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15492] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15492] open("./bus", O_RDONLY) = 3 [pid 15492] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15492] exit_group(0) = ? [pid 15492] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15492, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15493 attached , child_tidptr=0x5555575235d0) = 15493 [pid 15493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15493] setpgid(0, 0) = 0 [pid 15493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15493] write(3, "1000", 4) = 4 [pid 15493] close(3) = 0 [pid 15493] memfd_create("syzkaller", 0) = 3 [pid 15493] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15493] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15493] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15493] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15493] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15493] ioctl(4, LOOP_CLR_FD) = 0 [pid 15493] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15493] close(4) = 0 [pid 15493] close(3) = 0 [pid 15493] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15493] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15493] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15493] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15493] open("./bus", O_RDONLY) = 3 [pid 15493] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15493] exit_group(0) = ? [pid 15493] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15493, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15494 attached , child_tidptr=0x5555575235d0) = 15494 [pid 15494] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15494] setpgid(0, 0) = 0 [pid 15494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15494] write(3, "1000", 4) = 4 [pid 15494] close(3) = 0 [pid 15494] memfd_create("syzkaller", 0) = 3 [pid 15494] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15494] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15494] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15494] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15494] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15494] ioctl(4, LOOP_CLR_FD) = 0 [pid 15494] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15494] close(4) = 0 [pid 15494] close(3) = 0 [pid 15494] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15494] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15494] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15494] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15494] open("./bus", O_RDONLY) = 3 [pid 15494] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15494] exit_group(0) = ? [pid 15494] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15494, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15495 attached , child_tidptr=0x5555575235d0) = 15495 [pid 15495] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15495] setpgid(0, 0) = 0 [pid 15495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15495] write(3, "1000", 4) = 4 [pid 15495] close(3) = 0 [pid 15495] memfd_create("syzkaller", 0) = 3 [pid 15495] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15495] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15495] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15495] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15495] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15495] ioctl(4, LOOP_CLR_FD) = 0 [pid 15495] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15495] close(4) = 0 [pid 15495] close(3) = 0 [pid 15495] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15495] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15495] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15495] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15495] open("./bus", O_RDONLY) = 3 [pid 15495] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15495] exit_group(0) = ? [pid 15495] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15495, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15496 ./strace-static-x86_64: Process 15496 attached [pid 15496] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15496] setpgid(0, 0) = 0 [pid 15496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15496] write(3, "1000", 4) = 4 [pid 15496] close(3) = 0 [pid 15496] memfd_create("syzkaller", 0) = 3 [pid 15496] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15496] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15496] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15496] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15496] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15496] ioctl(4, LOOP_CLR_FD) = 0 [pid 15496] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15496] close(4) = 0 [pid 15496] close(3) = 0 [pid 15496] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15496] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15496] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15496] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15496] open("./bus", O_RDONLY) = 3 [pid 15496] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15496] exit_group(0) = ? [pid 15496] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15496, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15497 attached , child_tidptr=0x5555575235d0) = 15497 [pid 15497] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15497] setpgid(0, 0) = 0 [pid 15497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15497] write(3, "1000", 4) = 4 [pid 15497] close(3) = 0 [pid 15497] memfd_create("syzkaller", 0) = 3 [pid 15497] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15497] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15497] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15497] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15497] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15497] ioctl(4, LOOP_CLR_FD) = 0 [pid 15497] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15497] close(4) = 0 [pid 15497] close(3) = 0 [pid 15497] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15497] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15497] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15497] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15497] open("./bus", O_RDONLY) = 3 [pid 15497] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15497] exit_group(0) = ? [pid 15497] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15497, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15498 ./strace-static-x86_64: Process 15498 attached [pid 15498] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15498] setpgid(0, 0) = 0 [pid 15498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15498] write(3, "1000", 4) = 4 [pid 15498] close(3) = 0 [pid 15498] memfd_create("syzkaller", 0) = 3 [pid 15498] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15498] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15498] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15498] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15498] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15498] ioctl(4, LOOP_CLR_FD) = 0 [pid 15498] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15498] close(4) = 0 [pid 15498] close(3) = 0 [pid 15498] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15498] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15498] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15498] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15498] open("./bus", O_RDONLY) = 3 [pid 15498] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15498] exit_group(0) = ? [pid 15498] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15498, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15499 ./strace-static-x86_64: Process 15499 attached [pid 15499] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15499] setpgid(0, 0) = 0 [pid 15499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15499] write(3, "1000", 4) = 4 [pid 15499] close(3) = 0 [pid 15499] memfd_create("syzkaller", 0) = 3 [pid 15499] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15499] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15499] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15499] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15499] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15499] ioctl(4, LOOP_CLR_FD) = 0 [pid 15499] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15499] close(4) = 0 [pid 15499] close(3) = 0 [pid 15499] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15499] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15499] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15499] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15499] open("./bus", O_RDONLY) = 3 [pid 15499] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15499] exit_group(0) = ? [pid 15499] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15499, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15500 ./strace-static-x86_64: Process 15500 attached [pid 15500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15500] setpgid(0, 0) = 0 [pid 15500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15500] write(3, "1000", 4) = 4 [pid 15500] close(3) = 0 [pid 15500] memfd_create("syzkaller", 0) = 3 [pid 15500] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15500] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15500] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15500] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15500] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15500] ioctl(4, LOOP_CLR_FD) = 0 [pid 15500] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15500] close(4) = 0 [pid 15500] close(3) = 0 [pid 15500] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15500] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15500] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15500] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15500] open("./bus", O_RDONLY) = 3 [pid 15500] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15500] exit_group(0) = ? [pid 15500] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15500, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15501 ./strace-static-x86_64: Process 15501 attached [pid 15501] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15501] setpgid(0, 0) = 0 [pid 15501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15501] write(3, "1000", 4) = 4 [pid 15501] close(3) = 0 [pid 15501] memfd_create("syzkaller", 0) = 3 [pid 15501] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15501] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15501] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15501] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15501] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15501] ioctl(4, LOOP_CLR_FD) = 0 [pid 15501] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15501] close(4) = 0 [pid 15501] close(3) = 0 [pid 15501] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15501] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15501] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15501] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15501] open("./bus", O_RDONLY) = 3 [pid 15501] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15501] exit_group(0) = ? [pid 15501] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15501, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15502 attached , child_tidptr=0x5555575235d0) = 15502 [pid 15502] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15502] setpgid(0, 0) = 0 [pid 15502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15502] write(3, "1000", 4) = 4 [pid 15502] close(3) = 0 [pid 15502] memfd_create("syzkaller", 0) = 3 [pid 15502] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15502] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15502] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15502] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15502] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15502] ioctl(4, LOOP_CLR_FD) = 0 [pid 15502] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15502] close(4) = 0 [pid 15502] close(3) = 0 [pid 15502] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15502] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15502] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15502] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15502] open("./bus", O_RDONLY) = 3 [pid 15502] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15502] exit_group(0) = ? [pid 15502] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15502, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15503 attached , child_tidptr=0x5555575235d0) = 15503 [pid 15503] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15503] setpgid(0, 0) = 0 [pid 15503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15503] write(3, "1000", 4) = 4 [pid 15503] close(3) = 0 [pid 15503] memfd_create("syzkaller", 0) = 3 [pid 15503] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15503] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15503] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15503] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15503] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15503] ioctl(4, LOOP_CLR_FD) = 0 [pid 15503] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15503] close(4) = 0 [pid 15503] close(3) = 0 [pid 15503] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15503] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15503] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15503] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15503] open("./bus", O_RDONLY) = 3 [pid 15503] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15503] exit_group(0) = ? [pid 15503] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15503, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15504 attached , child_tidptr=0x5555575235d0) = 15504 [pid 15504] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15504] setpgid(0, 0) = 0 [pid 15504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15504] write(3, "1000", 4) = 4 [pid 15504] close(3) = 0 [pid 15504] memfd_create("syzkaller", 0) = 3 [pid 15504] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15504] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15504] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15504] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15504] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15504] ioctl(4, LOOP_CLR_FD) = 0 [pid 15504] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15504] close(4) = 0 [pid 15504] close(3) = 0 [pid 15504] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15504] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15504] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15504] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15504] open("./bus", O_RDONLY) = 3 [pid 15504] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15504] exit_group(0) = ? [pid 15504] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15504, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15505 attached , child_tidptr=0x5555575235d0) = 15505 [pid 15505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15505] setpgid(0, 0) = 0 [pid 15505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15505] write(3, "1000", 4) = 4 [pid 15505] close(3) = 0 [pid 15505] memfd_create("syzkaller", 0) = 3 [pid 15505] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15505] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15505] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15505] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15505] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15505] ioctl(4, LOOP_CLR_FD) = 0 [pid 15505] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15505] close(4) = 0 [pid 15505] close(3) = 0 [pid 15505] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15505] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15505] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15505] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15505] open("./bus", O_RDONLY) = 3 [pid 15505] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15505] exit_group(0) = ? [pid 15505] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15505, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15506 attached , child_tidptr=0x5555575235d0) = 15506 [pid 15506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15506] setpgid(0, 0) = 0 [pid 15506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15506] write(3, "1000", 4) = 4 [pid 15506] close(3) = 0 [pid 15506] memfd_create("syzkaller", 0) = 3 [pid 15506] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15506] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15506] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15506] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15506] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15506] ioctl(4, LOOP_CLR_FD) = 0 [pid 15506] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15506] close(4) = 0 [pid 15506] close(3) = 0 [pid 15506] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15506] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15506] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15506] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15506] open("./bus", O_RDONLY) = 3 [pid 15506] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15506] exit_group(0) = ? [pid 15506] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15506, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15507 ./strace-static-x86_64: Process 15507 attached [pid 15507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15507] setpgid(0, 0) = 0 [pid 15507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15507] write(3, "1000", 4) = 4 [pid 15507] close(3) = 0 [pid 15507] memfd_create("syzkaller", 0) = 3 [pid 15507] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15507] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15507] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15507] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15507] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15507] ioctl(4, LOOP_CLR_FD) = 0 [pid 15507] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15507] close(4) = 0 [pid 15507] close(3) = 0 [pid 15507] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15507] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15507] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15507] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15507] open("./bus", O_RDONLY) = 3 [pid 15507] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15507] exit_group(0) = ? [pid 15507] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15507, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15508 ./strace-static-x86_64: Process 15508 attached [pid 15508] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15508] setpgid(0, 0) = 0 [pid 15508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15508] write(3, "1000", 4) = 4 [pid 15508] close(3) = 0 [pid 15508] memfd_create("syzkaller", 0) = 3 [pid 15508] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15508] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15508] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15508] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15508] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15508] ioctl(4, LOOP_CLR_FD) = 0 [pid 15508] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15508] close(4) = 0 [pid 15508] close(3) = 0 [pid 15508] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15508] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15508] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15508] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15508] open("./bus", O_RDONLY) = 3 [pid 15508] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15508] exit_group(0) = ? [pid 15508] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15508, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15509 attached , child_tidptr=0x5555575235d0) = 15509 [pid 15509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15509] setpgid(0, 0) = 0 [pid 15509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15509] write(3, "1000", 4) = 4 [pid 15509] close(3) = 0 [pid 15509] memfd_create("syzkaller", 0) = 3 [pid 15509] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15509] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15509] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15509] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15509] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15509] ioctl(4, LOOP_CLR_FD) = 0 [pid 15509] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15509] close(4) = 0 [pid 15509] close(3) = 0 [pid 15509] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15509] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15509] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15509] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15509] open("./bus", O_RDONLY) = 3 [pid 15509] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15509] exit_group(0) = ? [pid 15509] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15509, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15510 ./strace-static-x86_64: Process 15510 attached [pid 15510] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15510] setpgid(0, 0) = 0 [pid 15510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15510] write(3, "1000", 4) = 4 [pid 15510] close(3) = 0 [pid 15510] memfd_create("syzkaller", 0) = 3 [pid 15510] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15510] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15510] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15510] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15510] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15510] ioctl(4, LOOP_CLR_FD) = 0 [pid 15510] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15510] close(4) = 0 [pid 15510] close(3) = 0 [pid 15510] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15510] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15510] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15510] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15510] open("./bus", O_RDONLY) = 3 [pid 15510] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15510] exit_group(0) = ? [pid 15510] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15510, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15511 attached , child_tidptr=0x5555575235d0) = 15511 [pid 15511] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15511] setpgid(0, 0) = 0 [pid 15511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15511] write(3, "1000", 4) = 4 [pid 15511] close(3) = 0 [pid 15511] memfd_create("syzkaller", 0) = 3 [pid 15511] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15511] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15511] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15511] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15511] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15511] ioctl(4, LOOP_CLR_FD) = 0 [pid 15511] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15511] close(4) = 0 [pid 15511] close(3) = 0 [pid 15511] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15511] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15511] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15511] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15511] open("./bus", O_RDONLY) = 3 [pid 15511] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15511] exit_group(0) = ? [pid 15511] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15511, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15512 attached , child_tidptr=0x5555575235d0) = 15512 [pid 15512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15512] setpgid(0, 0) = 0 [pid 15512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15512] write(3, "1000", 4) = 4 [pid 15512] close(3) = 0 [pid 15512] memfd_create("syzkaller", 0) = 3 [pid 15512] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15512] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15512] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15512] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15512] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15512] ioctl(4, LOOP_CLR_FD) = 0 [pid 15512] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15512] close(4) = 0 [pid 15512] close(3) = 0 [pid 15512] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15512] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15512] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15512] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15512] open("./bus", O_RDONLY) = 3 [pid 15512] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15512] exit_group(0) = ? [pid 15512] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15512, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15513 attached , child_tidptr=0x5555575235d0) = 15513 [pid 15513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15513] setpgid(0, 0) = 0 [pid 15513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15513] write(3, "1000", 4) = 4 [pid 15513] close(3) = 0 [pid 15513] memfd_create("syzkaller", 0) = 3 [pid 15513] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15513] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15513] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15513] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15513] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15513] ioctl(4, LOOP_CLR_FD) = 0 [pid 15513] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15513] close(4) = 0 [pid 15513] close(3) = 0 [pid 15513] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15513] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15513] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15513] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15513] open("./bus", O_RDONLY) = 3 [pid 15513] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15513] exit_group(0) = ? [pid 15513] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15513, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15514 ./strace-static-x86_64: Process 15514 attached [pid 15514] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15514] setpgid(0, 0) = 0 [pid 15514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15514] write(3, "1000", 4) = 4 [pid 15514] close(3) = 0 [pid 15514] memfd_create("syzkaller", 0) = 3 [pid 15514] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15514] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15514] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15514] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15514] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15514] ioctl(4, LOOP_CLR_FD) = 0 [pid 15514] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15514] close(4) = 0 [pid 15514] close(3) = 0 [pid 15514] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15514] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15514] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15514] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15514] open("./bus", O_RDONLY) = 3 [pid 15514] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15514] exit_group(0) = ? [pid 15514] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15514, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15515 ./strace-static-x86_64: Process 15515 attached [pid 15515] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15515] setpgid(0, 0) = 0 [pid 15515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15515] write(3, "1000", 4) = 4 [pid 15515] close(3) = 0 [pid 15515] memfd_create("syzkaller", 0) = 3 [pid 15515] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15515] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15515] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15515] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15515] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15515] ioctl(4, LOOP_CLR_FD) = 0 [pid 15515] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15515] close(4) = 0 [pid 15515] close(3) = 0 [pid 15515] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15515] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15515] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15515] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15515] open("./bus", O_RDONLY) = 3 [pid 15515] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15515] exit_group(0) = ? [pid 15515] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15515, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15516 ./strace-static-x86_64: Process 15516 attached [pid 15516] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15516] setpgid(0, 0) = 0 [pid 15516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15516] write(3, "1000", 4) = 4 [pid 15516] close(3) = 0 [pid 15516] memfd_create("syzkaller", 0) = 3 [pid 15516] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15516] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15516] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15516] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15516] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15516] ioctl(4, LOOP_CLR_FD) = 0 [pid 15516] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15516] close(4) = 0 [pid 15516] close(3) = 0 [pid 15516] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15516] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15516] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15516] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15516] open("./bus", O_RDONLY) = 3 [pid 15516] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15516] exit_group(0) = ? [pid 15516] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15516, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15517 attached , child_tidptr=0x5555575235d0) = 15517 [pid 15517] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15517] setpgid(0, 0) = 0 [pid 15517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15517] write(3, "1000", 4) = 4 [pid 15517] close(3) = 0 [pid 15517] memfd_create("syzkaller", 0) = 3 [pid 15517] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15517] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15517] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15517] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15517] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15517] ioctl(4, LOOP_CLR_FD) = 0 [pid 15517] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15517] close(4) = 0 [pid 15517] close(3) = 0 [pid 15517] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15517] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15517] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15517] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15517] open("./bus", O_RDONLY) = 3 [pid 15517] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15517] exit_group(0) = ? [pid 15517] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15517, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15518 attached , child_tidptr=0x5555575235d0) = 15518 [pid 15518] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15518] setpgid(0, 0) = 0 [pid 15518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15518] write(3, "1000", 4) = 4 [pid 15518] close(3) = 0 [pid 15518] memfd_create("syzkaller", 0) = 3 [pid 15518] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15518] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15518] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15518] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15518] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15518] ioctl(4, LOOP_CLR_FD) = 0 [pid 15518] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15518] close(4) = 0 [pid 15518] close(3) = 0 [pid 15518] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15518] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15518] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15518] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15518] open("./bus", O_RDONLY) = 3 [pid 15518] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15518] exit_group(0) = ? [pid 15518] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15518, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15519 ./strace-static-x86_64: Process 15519 attached [pid 15519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15519] setpgid(0, 0) = 0 [pid 15519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15519] write(3, "1000", 4) = 4 [pid 15519] close(3) = 0 [pid 15519] memfd_create("syzkaller", 0) = 3 [pid 15519] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15519] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15519] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15519] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15519] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15519] ioctl(4, LOOP_CLR_FD) = 0 [pid 15519] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15519] close(4) = 0 [pid 15519] close(3) = 0 [pid 15519] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15519] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15519] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15519] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15519] open("./bus", O_RDONLY) = 3 [pid 15519] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15519] exit_group(0) = ? [pid 15519] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15519, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15520 ./strace-static-x86_64: Process 15520 attached [pid 15520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15520] setpgid(0, 0) = 0 [pid 15520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15520] write(3, "1000", 4) = 4 [pid 15520] close(3) = 0 [pid 15520] memfd_create("syzkaller", 0) = 3 [pid 15520] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15520] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15520] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15520] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15520] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15520] ioctl(4, LOOP_CLR_FD) = 0 [pid 15520] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15520] close(4) = 0 [pid 15520] close(3) = 0 [pid 15520] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15520] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15520] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15520] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15520] open("./bus", O_RDONLY) = 3 [pid 15520] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15520] exit_group(0) = ? [pid 15520] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15520, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15521 ./strace-static-x86_64: Process 15521 attached [pid 15521] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15521] setpgid(0, 0) = 0 [pid 15521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15521] write(3, "1000", 4) = 4 [pid 15521] close(3) = 0 [pid 15521] memfd_create("syzkaller", 0) = 3 [pid 15521] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15521] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15521] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15521] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15521] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15521] ioctl(4, LOOP_CLR_FD) = 0 [pid 15521] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15521] close(4) = 0 [pid 15521] close(3) = 0 [pid 15521] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15521] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15521] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15521] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15521] open("./bus", O_RDONLY) = 3 [pid 15521] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15521] exit_group(0) = ? [pid 15521] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15521, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15522 ./strace-static-x86_64: Process 15522 attached [pid 15522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15522] setpgid(0, 0) = 0 [pid 15522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15522] write(3, "1000", 4) = 4 [pid 15522] close(3) = 0 [pid 15522] memfd_create("syzkaller", 0) = 3 [pid 15522] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15522] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15522] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15522] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15522] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15522] ioctl(4, LOOP_CLR_FD) = 0 [pid 15522] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15522] close(4) = 0 [pid 15522] close(3) = 0 [pid 15522] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15522] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15522] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15522] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15522] open("./bus", O_RDONLY) = 3 [pid 15522] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15522] exit_group(0) = ? [pid 15522] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15522, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15523 attached , child_tidptr=0x5555575235d0) = 15523 [pid 15523] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15523] setpgid(0, 0) = 0 [pid 15523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15523] write(3, "1000", 4) = 4 [pid 15523] close(3) = 0 [pid 15523] memfd_create("syzkaller", 0) = 3 [pid 15523] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15523] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15523] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15523] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15523] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15523] ioctl(4, LOOP_CLR_FD) = 0 [pid 15523] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15523] close(4) = 0 [pid 15523] close(3) = 0 [pid 15523] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15523] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15523] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15523] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15523] open("./bus", O_RDONLY) = 3 [pid 15523] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15523] exit_group(0) = ? [pid 15523] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15523, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15524 ./strace-static-x86_64: Process 15524 attached [pid 15524] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15524] setpgid(0, 0) = 0 [pid 15524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15524] write(3, "1000", 4) = 4 [pid 15524] close(3) = 0 [pid 15524] memfd_create("syzkaller", 0) = 3 [pid 15524] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15524] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15524] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15524] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15524] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15524] ioctl(4, LOOP_CLR_FD) = 0 [pid 15524] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15524] close(4) = 0 [pid 15524] close(3) = 0 [pid 15524] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15524] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15524] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15524] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15524] open("./bus", O_RDONLY) = 3 [pid 15524] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15524] exit_group(0) = ? [pid 15524] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15524, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15525 ./strace-static-x86_64: Process 15525 attached [pid 15525] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15525] setpgid(0, 0) = 0 [pid 15525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15525] write(3, "1000", 4) = 4 [pid 15525] close(3) = 0 [pid 15525] memfd_create("syzkaller", 0) = 3 [pid 15525] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15525] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15525] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15525] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15525] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15525] ioctl(4, LOOP_CLR_FD) = 0 [pid 15525] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15525] close(4) = 0 [pid 15525] close(3) = 0 [pid 15525] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15525] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15525] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15525] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15525] open("./bus", O_RDONLY) = 3 [pid 15525] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15525] exit_group(0) = ? [pid 15525] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15525, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15526 attached , child_tidptr=0x5555575235d0) = 15526 [pid 15526] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15526] setpgid(0, 0) = 0 [pid 15526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15526] write(3, "1000", 4) = 4 [pid 15526] close(3) = 0 [pid 15526] memfd_create("syzkaller", 0) = 3 [pid 15526] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15526] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15526] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15526] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15526] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15526] ioctl(4, LOOP_CLR_FD) = 0 [pid 15526] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15526] close(4) = 0 [pid 15526] close(3) = 0 [pid 15526] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15526] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15526] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15526] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15526] open("./bus", O_RDONLY) = 3 [pid 15526] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15526] exit_group(0) = ? [pid 15526] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15526, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15527 attached , child_tidptr=0x5555575235d0) = 15527 [pid 15527] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15527] setpgid(0, 0) = 0 [pid 15527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15527] write(3, "1000", 4) = 4 [pid 15527] close(3) = 0 [pid 15527] memfd_create("syzkaller", 0) = 3 [pid 15527] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15527] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15527] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15527] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15527] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15527] ioctl(4, LOOP_CLR_FD) = 0 [pid 15527] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15527] close(4) = 0 [pid 15527] close(3) = 0 [pid 15527] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15527] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15527] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15527] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15527] open("./bus", O_RDONLY) = 3 [pid 15527] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15527] exit_group(0) = ? [pid 15527] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15527, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15528 attached , child_tidptr=0x5555575235d0) = 15528 [pid 15528] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15528] setpgid(0, 0) = 0 [pid 15528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15528] write(3, "1000", 4) = 4 [pid 15528] close(3) = 0 [pid 15528] memfd_create("syzkaller", 0) = 3 [pid 15528] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15528] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15528] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15528] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15528] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15528] ioctl(4, LOOP_CLR_FD) = 0 [pid 15528] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15528] close(4) = 0 [pid 15528] close(3) = 0 [pid 15528] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15528] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15528] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15528] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15528] open("./bus", O_RDONLY) = 3 [pid 15528] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15528] exit_group(0) = ? [pid 15528] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15528, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15529 attached , child_tidptr=0x5555575235d0) = 15529 [pid 15529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15529] setpgid(0, 0) = 0 [pid 15529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15529] write(3, "1000", 4) = 4 [pid 15529] close(3) = 0 [pid 15529] memfd_create("syzkaller", 0) = 3 [pid 15529] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15529] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15529] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15529] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15529] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15529] ioctl(4, LOOP_CLR_FD) = 0 [pid 15529] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15529] close(4) = 0 [pid 15529] close(3) = 0 [pid 15529] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15529] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15529] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15529] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15529] open("./bus", O_RDONLY) = 3 [pid 15529] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15529] exit_group(0) = ? [pid 15529] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15529, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15530 attached , child_tidptr=0x5555575235d0) = 15530 [pid 15530] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15530] setpgid(0, 0) = 0 [pid 15530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15530] write(3, "1000", 4) = 4 [pid 15530] close(3) = 0 [pid 15530] memfd_create("syzkaller", 0) = 3 [pid 15530] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15530] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15530] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15530] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15530] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15530] ioctl(4, LOOP_CLR_FD) = 0 [pid 15530] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15530] close(4) = 0 [pid 15530] close(3) = 0 [pid 15530] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15530] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15530] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15530] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15530] open("./bus", O_RDONLY) = 3 [pid 15530] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15530] exit_group(0) = ? [pid 15530] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15530, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15531 ./strace-static-x86_64: Process 15531 attached [pid 15531] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15531] setpgid(0, 0) = 0 [pid 15531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15531] write(3, "1000", 4) = 4 [pid 15531] close(3) = 0 [pid 15531] memfd_create("syzkaller", 0) = 3 [pid 15531] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15531] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15531] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15531] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15531] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15531] ioctl(4, LOOP_CLR_FD) = 0 [pid 15531] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15531] close(4) = 0 [pid 15531] close(3) = 0 [pid 15531] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15531] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15531] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15531] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15531] open("./bus", O_RDONLY) = 3 [pid 15531] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15531] exit_group(0) = ? [pid 15531] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15531, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15532 ./strace-static-x86_64: Process 15532 attached [pid 15532] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15532] setpgid(0, 0) = 0 [pid 15532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15532] write(3, "1000", 4) = 4 [pid 15532] close(3) = 0 [pid 15532] memfd_create("syzkaller", 0) = 3 [pid 15532] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15532] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15532] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15532] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15532] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15532] ioctl(4, LOOP_CLR_FD) = 0 [pid 15532] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15532] close(4) = 0 [pid 15532] close(3) = 0 [pid 15532] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15532] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15532] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15532] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15532] open("./bus", O_RDONLY) = 3 [pid 15532] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15532] exit_group(0) = ? [pid 15532] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15532, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15533 attached , child_tidptr=0x5555575235d0) = 15533 [pid 15533] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15533] setpgid(0, 0) = 0 [pid 15533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15533] write(3, "1000", 4) = 4 [pid 15533] close(3) = 0 [pid 15533] memfd_create("syzkaller", 0) = 3 [pid 15533] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15533] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15533] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15533] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15533] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15533] ioctl(4, LOOP_CLR_FD) = 0 [pid 15533] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15533] close(4) = 0 [pid 15533] close(3) = 0 [pid 15533] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15533] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15533] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15533] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15533] open("./bus", O_RDONLY) = 3 [pid 15533] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15533] exit_group(0) = ? [pid 15533] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15533, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15534 ./strace-static-x86_64: Process 15534 attached [pid 15534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15534] setpgid(0, 0) = 0 [pid 15534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15534] write(3, "1000", 4) = 4 [pid 15534] close(3) = 0 [pid 15534] memfd_create("syzkaller", 0) = 3 [pid 15534] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15534] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15534] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15534] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15534] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15534] ioctl(4, LOOP_CLR_FD) = 0 [pid 15534] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15534] close(4) = 0 [pid 15534] close(3) = 0 [pid 15534] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15534] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15534] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15534] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15534] open("./bus", O_RDONLY) = 3 [pid 15534] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15534] exit_group(0) = ? [pid 15534] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15534, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15535 ./strace-static-x86_64: Process 15535 attached [pid 15535] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15535] setpgid(0, 0) = 0 [pid 15535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15535] write(3, "1000", 4) = 4 [pid 15535] close(3) = 0 [pid 15535] memfd_create("syzkaller", 0) = 3 [pid 15535] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15535] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15535] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15535] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15535] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15535] ioctl(4, LOOP_CLR_FD) = 0 [pid 15535] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15535] close(4) = 0 [pid 15535] close(3) = 0 [pid 15535] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15535] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15535] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15535] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15535] open("./bus", O_RDONLY) = 3 [pid 15535] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15535] exit_group(0) = ? [pid 15535] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15535, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15536 attached , child_tidptr=0x5555575235d0) = 15536 [pid 15536] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15536] setpgid(0, 0) = 0 [pid 15536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15536] write(3, "1000", 4) = 4 [pid 15536] close(3) = 0 [pid 15536] memfd_create("syzkaller", 0) = 3 [pid 15536] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15536] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15536] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15536] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15536] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15536] ioctl(4, LOOP_CLR_FD) = 0 [pid 15536] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15536] close(4) = 0 [pid 15536] close(3) = 0 [pid 15536] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15536] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15536] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15536] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15536] open("./bus", O_RDONLY) = 3 [pid 15536] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15536] exit_group(0) = ? [pid 15536] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15536, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15537 ./strace-static-x86_64: Process 15537 attached [pid 15537] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15537] setpgid(0, 0) = 0 [pid 15537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15537] write(3, "1000", 4) = 4 [pid 15537] close(3) = 0 [pid 15537] memfd_create("syzkaller", 0) = 3 [pid 15537] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15537] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15537] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15537] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15537] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15537] ioctl(4, LOOP_CLR_FD) = 0 [pid 15537] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15537] close(4) = 0 [pid 15537] close(3) = 0 [pid 15537] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15537] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15537] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15537] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15537] open("./bus", O_RDONLY) = 3 [pid 15537] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15537] exit_group(0) = ? [pid 15537] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15537, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15538 ./strace-static-x86_64: Process 15538 attached [pid 15538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15538] setpgid(0, 0) = 0 [pid 15538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15538] write(3, "1000", 4) = 4 [pid 15538] close(3) = 0 [pid 15538] memfd_create("syzkaller", 0) = 3 [pid 15538] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15538] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15538] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15538] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15538] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15538] ioctl(4, LOOP_CLR_FD) = 0 [pid 15538] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15538] close(4) = 0 [pid 15538] close(3) = 0 [pid 15538] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15538] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15538] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15538] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15538] open("./bus", O_RDONLY) = 3 [pid 15538] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15538] exit_group(0) = ? [pid 15538] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15538, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15539 attached , child_tidptr=0x5555575235d0) = 15539 [pid 15539] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15539] setpgid(0, 0) = 0 [pid 15539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15539] write(3, "1000", 4) = 4 [pid 15539] close(3) = 0 [pid 15539] memfd_create("syzkaller", 0) = 3 [pid 15539] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15539] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15539] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15539] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15539] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15539] ioctl(4, LOOP_CLR_FD) = 0 [pid 15539] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15539] close(4) = 0 [pid 15539] close(3) = 0 [pid 15539] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15539] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15539] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15539] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15539] open("./bus", O_RDONLY) = 3 [pid 15539] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15539] exit_group(0) = ? [pid 15539] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15539, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15540 attached , child_tidptr=0x5555575235d0) = 15540 [pid 15540] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15540] setpgid(0, 0) = 0 [pid 15540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15540] write(3, "1000", 4) = 4 [pid 15540] close(3) = 0 [pid 15540] memfd_create("syzkaller", 0) = 3 [pid 15540] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15540] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15540] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15540] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15540] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15540] ioctl(4, LOOP_CLR_FD) = 0 [pid 15540] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15540] close(4) = 0 [pid 15540] close(3) = 0 [pid 15540] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15540] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15540] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15540] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15540] open("./bus", O_RDONLY) = 3 [pid 15540] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15540] exit_group(0) = ? [pid 15540] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15540, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15541 ./strace-static-x86_64: Process 15541 attached [pid 15541] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15541] setpgid(0, 0) = 0 [pid 15541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15541] write(3, "1000", 4) = 4 [pid 15541] close(3) = 0 [pid 15541] memfd_create("syzkaller", 0) = 3 [pid 15541] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15541] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15541] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15541] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15541] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15541] ioctl(4, LOOP_CLR_FD) = 0 [pid 15541] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15541] close(4) = 0 [pid 15541] close(3) = 0 [pid 15541] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15541] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15541] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15541] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15541] open("./bus", O_RDONLY) = 3 [pid 15541] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15541] exit_group(0) = ? [pid 15541] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15541, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15542 ./strace-static-x86_64: Process 15542 attached [pid 15542] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15542] setpgid(0, 0) = 0 [pid 15542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15542] write(3, "1000", 4) = 4 [pid 15542] close(3) = 0 [pid 15542] memfd_create("syzkaller", 0) = 3 [pid 15542] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15542] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15542] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15542] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15542] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15542] ioctl(4, LOOP_CLR_FD) = 0 [pid 15542] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15542] close(4) = 0 [pid 15542] close(3) = 0 [pid 15542] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15542] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15542] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15542] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15542] open("./bus", O_RDONLY) = 3 [pid 15542] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15542] exit_group(0) = ? [pid 15542] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15542, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15543 ./strace-static-x86_64: Process 15543 attached [pid 15543] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15543] setpgid(0, 0) = 0 [pid 15543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15543] write(3, "1000", 4) = 4 [pid 15543] close(3) = 0 [pid 15543] memfd_create("syzkaller", 0) = 3 [pid 15543] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15543] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15543] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15543] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15543] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15543] ioctl(4, LOOP_CLR_FD) = 0 [pid 15543] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15543] close(4) = 0 [pid 15543] close(3) = 0 [pid 15543] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15543] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15543] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15543] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15543] open("./bus", O_RDONLY) = 3 [pid 15543] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15543] exit_group(0) = ? [pid 15543] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15543, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15544 attached , child_tidptr=0x5555575235d0) = 15544 [pid 15544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15544] setpgid(0, 0) = 0 [pid 15544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15544] write(3, "1000", 4) = 4 [pid 15544] close(3) = 0 [pid 15544] memfd_create("syzkaller", 0) = 3 [pid 15544] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15544] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15544] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15544] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15544] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15544] ioctl(4, LOOP_CLR_FD) = 0 [pid 15544] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15544] close(4) = 0 [pid 15544] close(3) = 0 [pid 15544] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15544] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15544] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15544] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15544] open("./bus", O_RDONLY) = 3 [pid 15544] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15544] exit_group(0) = ? [pid 15544] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15544, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15545 attached , child_tidptr=0x5555575235d0) = 15545 [pid 15545] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15545] setpgid(0, 0) = 0 [pid 15545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15545] write(3, "1000", 4) = 4 [pid 15545] close(3) = 0 [pid 15545] memfd_create("syzkaller", 0) = 3 [pid 15545] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15545] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15545] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15545] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15545] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15545] ioctl(4, LOOP_CLR_FD) = 0 [pid 15545] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15545] close(4) = 0 [pid 15545] close(3) = 0 [pid 15545] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15545] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15545] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15545] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15545] open("./bus", O_RDONLY) = 3 [pid 15545] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15545] exit_group(0) = ? [pid 15545] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15545, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15546 attached , child_tidptr=0x5555575235d0) = 15546 [pid 15546] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15546] setpgid(0, 0) = 0 [pid 15546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15546] write(3, "1000", 4) = 4 [pid 15546] close(3) = 0 [pid 15546] memfd_create("syzkaller", 0) = 3 [pid 15546] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15546] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15546] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15546] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15546] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15546] ioctl(4, LOOP_CLR_FD) = 0 [pid 15546] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15546] close(4) = 0 [pid 15546] close(3) = 0 [pid 15546] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15546] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15546] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15546] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15546] open("./bus", O_RDONLY) = 3 [pid 15546] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15546] exit_group(0) = ? [pid 15546] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15546, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15547 attached , child_tidptr=0x5555575235d0) = 15547 [pid 15547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15547] setpgid(0, 0) = 0 [pid 15547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15547] write(3, "1000", 4) = 4 [pid 15547] close(3) = 0 [pid 15547] memfd_create("syzkaller", 0) = 3 [pid 15547] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15547] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15547] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15547] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15547] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15547] ioctl(4, LOOP_CLR_FD) = 0 [pid 15547] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15547] close(4) = 0 [pid 15547] close(3) = 0 [pid 15547] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15547] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15547] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15547] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15547] open("./bus", O_RDONLY) = 3 [pid 15547] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15547] exit_group(0) = ? [pid 15547] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15547, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15548 ./strace-static-x86_64: Process 15548 attached [pid 15548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15548] setpgid(0, 0) = 0 [pid 15548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15548] write(3, "1000", 4) = 4 [pid 15548] close(3) = 0 [pid 15548] memfd_create("syzkaller", 0) = 3 [pid 15548] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15548] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15548] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15548] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15548] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15548] ioctl(4, LOOP_CLR_FD) = 0 [pid 15548] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15548] close(4) = 0 [pid 15548] close(3) = 0 [pid 15548] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15548] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15548] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15548] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15548] open("./bus", O_RDONLY) = 3 [pid 15548] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15548] exit_group(0) = ? [pid 15548] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15548, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15549 ./strace-static-x86_64: Process 15549 attached [pid 15549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15549] setpgid(0, 0) = 0 [pid 15549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15549] write(3, "1000", 4) = 4 [pid 15549] close(3) = 0 [pid 15549] memfd_create("syzkaller", 0) = 3 [pid 15549] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15549] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15549] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15549] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15549] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15549] ioctl(4, LOOP_CLR_FD) = 0 [pid 15549] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15549] close(4) = 0 [pid 15549] close(3) = 0 [pid 15549] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15549] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15549] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15549] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15549] open("./bus", O_RDONLY) = 3 [pid 15549] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15549] exit_group(0) = ? [pid 15549] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15549, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15550 attached , child_tidptr=0x5555575235d0) = 15550 [pid 15550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15550] setpgid(0, 0) = 0 [pid 15550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15550] write(3, "1000", 4) = 4 [pid 15550] close(3) = 0 [pid 15550] memfd_create("syzkaller", 0) = 3 [pid 15550] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15550] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15550] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15550] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15550] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15550] ioctl(4, LOOP_CLR_FD) = 0 [pid 15550] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15550] close(4) = 0 [pid 15550] close(3) = 0 [pid 15550] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15550] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15550] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15550] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15550] open("./bus", O_RDONLY) = 3 [pid 15550] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15550] exit_group(0) = ? [pid 15550] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15550, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15551 ./strace-static-x86_64: Process 15551 attached [pid 15551] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15551] setpgid(0, 0) = 0 [pid 15551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15551] write(3, "1000", 4) = 4 [pid 15551] close(3) = 0 [pid 15551] memfd_create("syzkaller", 0) = 3 [pid 15551] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15551] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15551] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15551] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15551] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15551] ioctl(4, LOOP_CLR_FD) = 0 [pid 15551] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15551] close(4) = 0 [pid 15551] close(3) = 0 [pid 15551] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15551] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15551] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15551] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15551] open("./bus", O_RDONLY) = 3 [pid 15551] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15551] exit_group(0) = ? [pid 15551] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15551, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15552 ./strace-static-x86_64: Process 15552 attached [pid 15552] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15552] setpgid(0, 0) = 0 [pid 15552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15552] write(3, "1000", 4) = 4 [pid 15552] close(3) = 0 [pid 15552] memfd_create("syzkaller", 0) = 3 [pid 15552] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15552] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15552] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15552] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15552] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15552] ioctl(4, LOOP_CLR_FD) = 0 [pid 15552] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15552] close(4) = 0 [pid 15552] close(3) = 0 [pid 15552] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15552] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15552] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15552] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15552] open("./bus", O_RDONLY) = 3 [pid 15552] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15552] exit_group(0) = ? [pid 15552] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15552, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15553 ./strace-static-x86_64: Process 15553 attached [pid 15553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15553] setpgid(0, 0) = 0 [pid 15553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15553] write(3, "1000", 4) = 4 [pid 15553] close(3) = 0 [pid 15553] memfd_create("syzkaller", 0) = 3 [pid 15553] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15553] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15553] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15553] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15553] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15553] ioctl(4, LOOP_CLR_FD) = 0 [pid 15553] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15553] close(4) = 0 [pid 15553] close(3) = 0 [pid 15553] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15553] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15553] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15553] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15553] open("./bus", O_RDONLY) = 3 [pid 15553] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15553] exit_group(0) = ? [pid 15553] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15553, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15554 ./strace-static-x86_64: Process 15554 attached [pid 15554] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15554] setpgid(0, 0) = 0 [pid 15554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15554] write(3, "1000", 4) = 4 [pid 15554] close(3) = 0 [pid 15554] memfd_create("syzkaller", 0) = 3 [pid 15554] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15554] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15554] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15554] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15554] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15554] ioctl(4, LOOP_CLR_FD) = 0 [pid 15554] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15554] close(4) = 0 [pid 15554] close(3) = 0 [pid 15554] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15554] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15554] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15554] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15554] open("./bus", O_RDONLY) = 3 [pid 15554] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15554] exit_group(0) = ? [pid 15554] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15554, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15555 attached , child_tidptr=0x5555575235d0) = 15555 [pid 15555] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15555] setpgid(0, 0) = 0 [pid 15555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15555] write(3, "1000", 4) = 4 [pid 15555] close(3) = 0 [pid 15555] memfd_create("syzkaller", 0) = 3 [pid 15555] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15555] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15555] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15555] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15555] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15555] ioctl(4, LOOP_CLR_FD) = 0 [pid 15555] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15555] close(4) = 0 [pid 15555] close(3) = 0 [pid 15555] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15555] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15555] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15555] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15555] open("./bus", O_RDONLY) = 3 [pid 15555] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15555] exit_group(0) = ? [pid 15555] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15555, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15556 attached , child_tidptr=0x5555575235d0) = 15556 [pid 15556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15556] setpgid(0, 0) = 0 [pid 15556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15556] write(3, "1000", 4) = 4 [pid 15556] close(3) = 0 [pid 15556] memfd_create("syzkaller", 0) = 3 [pid 15556] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15556] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15556] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15556] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15556] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15556] ioctl(4, LOOP_CLR_FD) = 0 [pid 15556] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15556] close(4) = 0 [pid 15556] close(3) = 0 [pid 15556] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15556] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15556] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15556] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15556] open("./bus", O_RDONLY) = 3 [pid 15556] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15556] exit_group(0) = ? [pid 15556] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15556, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15557 ./strace-static-x86_64: Process 15557 attached [pid 15557] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15557] setpgid(0, 0) = 0 [pid 15557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15557] write(3, "1000", 4) = 4 [pid 15557] close(3) = 0 [pid 15557] memfd_create("syzkaller", 0) = 3 [pid 15557] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15557] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15557] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15557] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15557] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15557] ioctl(4, LOOP_CLR_FD) = 0 [pid 15557] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15557] close(4) = 0 [pid 15557] close(3) = 0 [pid 15557] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15557] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15557] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15557] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15557] open("./bus", O_RDONLY) = 3 [pid 15557] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15557] exit_group(0) = ? [pid 15557] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15557, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15558 attached , child_tidptr=0x5555575235d0) = 15558 [pid 15558] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15558] setpgid(0, 0) = 0 [pid 15558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15558] write(3, "1000", 4) = 4 [pid 15558] close(3) = 0 [pid 15558] memfd_create("syzkaller", 0) = 3 [pid 15558] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15558] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15558] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15558] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15558] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15558] ioctl(4, LOOP_CLR_FD) = 0 [pid 15558] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15558] close(4) = 0 [pid 15558] close(3) = 0 [pid 15558] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15558] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15558] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15558] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15558] open("./bus", O_RDONLY) = 3 [pid 15558] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15558] exit_group(0) = ? [pid 15558] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15558, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15559 ./strace-static-x86_64: Process 15559 attached [pid 15559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15559] setpgid(0, 0) = 0 [pid 15559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15559] write(3, "1000", 4) = 4 [pid 15559] close(3) = 0 [pid 15559] memfd_create("syzkaller", 0) = 3 [pid 15559] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15559] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15559] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15559] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15559] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15559] ioctl(4, LOOP_CLR_FD) = 0 [pid 15559] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15559] close(4) = 0 [pid 15559] close(3) = 0 [pid 15559] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15559] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15559] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15559] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15559] open("./bus", O_RDONLY) = 3 [pid 15559] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15559] exit_group(0) = ? [pid 15559] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15559, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15560 ./strace-static-x86_64: Process 15560 attached [pid 15560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15560] setpgid(0, 0) = 0 [pid 15560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15560] write(3, "1000", 4) = 4 [pid 15560] close(3) = 0 [pid 15560] memfd_create("syzkaller", 0) = 3 [pid 15560] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15560] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15560] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15560] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15560] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15560] ioctl(4, LOOP_CLR_FD) = 0 [pid 15560] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15560] close(4) = 0 [pid 15560] close(3) = 0 [pid 15560] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15560] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15560] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15560] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15560] open("./bus", O_RDONLY) = 3 [pid 15560] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15560] exit_group(0) = ? [pid 15560] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15560, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15561 attached , child_tidptr=0x5555575235d0) = 15561 [pid 15561] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15561] setpgid(0, 0) = 0 [pid 15561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15561] write(3, "1000", 4) = 4 [pid 15561] close(3) = 0 [pid 15561] memfd_create("syzkaller", 0) = 3 [pid 15561] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15561] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15561] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15561] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15561] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15561] ioctl(4, LOOP_CLR_FD) = 0 [pid 15561] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15561] close(4) = 0 [pid 15561] close(3) = 0 [pid 15561] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15561] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15561] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15561] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15561] open("./bus", O_RDONLY) = 3 [pid 15561] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15561] exit_group(0) = ? [pid 15561] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15561, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15562 attached , child_tidptr=0x5555575235d0) = 15562 [pid 15562] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15562] setpgid(0, 0) = 0 [pid 15562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15562] write(3, "1000", 4) = 4 [pid 15562] close(3) = 0 [pid 15562] memfd_create("syzkaller", 0) = 3 [pid 15562] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15562] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15562] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15562] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15562] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15562] ioctl(4, LOOP_CLR_FD) = 0 [pid 15562] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15562] close(4) = 0 [pid 15562] close(3) = 0 [pid 15562] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15562] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15562] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15562] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15562] open("./bus", O_RDONLY) = 3 [pid 15562] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15562] exit_group(0) = ? [pid 15562] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15562, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15563 attached , child_tidptr=0x5555575235d0) = 15563 [pid 15563] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15563] setpgid(0, 0) = 0 [pid 15563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15563] write(3, "1000", 4) = 4 [pid 15563] close(3) = 0 [pid 15563] memfd_create("syzkaller", 0) = 3 [pid 15563] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15563] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15563] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15563] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15563] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15563] ioctl(4, LOOP_CLR_FD) = 0 [pid 15563] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15563] close(4) = 0 [pid 15563] close(3) = 0 [pid 15563] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15563] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15563] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15563] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15563] open("./bus", O_RDONLY) = 3 [pid 15563] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15563] exit_group(0) = ? [pid 15563] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15563, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15564 ./strace-static-x86_64: Process 15564 attached [pid 15564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15564] setpgid(0, 0) = 0 [pid 15564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15564] write(3, "1000", 4) = 4 [pid 15564] close(3) = 0 [pid 15564] memfd_create("syzkaller", 0) = 3 [pid 15564] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15564] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15564] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15564] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15564] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15564] ioctl(4, LOOP_CLR_FD) = 0 [pid 15564] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15564] close(4) = 0 [pid 15564] close(3) = 0 [pid 15564] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15564] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15564] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15564] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15564] open("./bus", O_RDONLY) = 3 [pid 15564] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15564] exit_group(0) = ? [pid 15564] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15564, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15565 ./strace-static-x86_64: Process 15565 attached [pid 15565] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15565] setpgid(0, 0) = 0 [pid 15565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15565] write(3, "1000", 4) = 4 [pid 15565] close(3) = 0 [pid 15565] memfd_create("syzkaller", 0) = 3 [pid 15565] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15565] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15565] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15565] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15565] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15565] ioctl(4, LOOP_CLR_FD) = 0 [pid 15565] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15565] close(4) = 0 [pid 15565] close(3) = 0 [pid 15565] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15565] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15565] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15565] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15565] open("./bus", O_RDONLY) = 3 [pid 15565] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15565] exit_group(0) = ? [pid 15565] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15565, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15566 attached , child_tidptr=0x5555575235d0) = 15566 [pid 15566] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15566] setpgid(0, 0) = 0 [pid 15566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15566] write(3, "1000", 4) = 4 [pid 15566] close(3) = 0 [pid 15566] memfd_create("syzkaller", 0) = 3 [pid 15566] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15566] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15566] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15566] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15566] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15566] ioctl(4, LOOP_CLR_FD) = 0 [pid 15566] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15566] close(4) = 0 [pid 15566] close(3) = 0 [pid 15566] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15566] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15566] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15566] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15566] open("./bus", O_RDONLY) = 3 [pid 15566] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15566] exit_group(0) = ? [pid 15566] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15566, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15567 ./strace-static-x86_64: Process 15567 attached [pid 15567] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15567] setpgid(0, 0) = 0 [pid 15567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15567] write(3, "1000", 4) = 4 [pid 15567] close(3) = 0 [pid 15567] memfd_create("syzkaller", 0) = 3 [pid 15567] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15567] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15567] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15567] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15567] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15567] ioctl(4, LOOP_CLR_FD) = 0 [pid 15567] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15567] close(4) = 0 [pid 15567] close(3) = 0 [pid 15567] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15567] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15567] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15567] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15567] open("./bus", O_RDONLY) = 3 [pid 15567] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15567] exit_group(0) = ? [pid 15567] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15567, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15568 ./strace-static-x86_64: Process 15568 attached [pid 15568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15568] setpgid(0, 0) = 0 [pid 15568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15568] write(3, "1000", 4) = 4 [pid 15568] close(3) = 0 [pid 15568] memfd_create("syzkaller", 0) = 3 [pid 15568] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15568] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15568] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15568] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15568] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15568] ioctl(4, LOOP_CLR_FD) = 0 [pid 15568] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15568] close(4) = 0 [pid 15568] close(3) = 0 [pid 15568] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15568] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15568] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15568] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15568] open("./bus", O_RDONLY) = 3 [pid 15568] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15568] exit_group(0) = ? [pid 15568] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15568, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15569 attached , child_tidptr=0x5555575235d0) = 15569 [pid 15569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15569] setpgid(0, 0) = 0 [pid 15569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15569] write(3, "1000", 4) = 4 [pid 15569] close(3) = 0 [pid 15569] memfd_create("syzkaller", 0) = 3 [pid 15569] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15569] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15569] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15569] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15569] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15569] ioctl(4, LOOP_CLR_FD) = 0 [pid 15569] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15569] close(4) = 0 [pid 15569] close(3) = 0 [pid 15569] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15569] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15569] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15569] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15569] open("./bus", O_RDONLY) = 3 [pid 15569] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15569] exit_group(0) = ? [pid 15569] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15569, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15570 attached , child_tidptr=0x5555575235d0) = 15570 [pid 15570] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15570] setpgid(0, 0) = 0 [pid 15570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15570] write(3, "1000", 4) = 4 [pid 15570] close(3) = 0 [pid 15570] memfd_create("syzkaller", 0) = 3 [pid 15570] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15570] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15570] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15570] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15570] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15570] ioctl(4, LOOP_CLR_FD) = 0 [pid 15570] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15570] close(4) = 0 [pid 15570] close(3) = 0 [pid 15570] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15570] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15570] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15570] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15570] open("./bus", O_RDONLY) = 3 [pid 15570] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15570] exit_group(0) = ? [pid 15570] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15570, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15571 ./strace-static-x86_64: Process 15571 attached [pid 15571] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15571] setpgid(0, 0) = 0 [pid 15571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15571] write(3, "1000", 4) = 4 [pid 15571] close(3) = 0 [pid 15571] memfd_create("syzkaller", 0) = 3 [pid 15571] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15571] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15571] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15571] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15571] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15571] ioctl(4, LOOP_CLR_FD) = 0 [pid 15571] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15571] close(4) = 0 [pid 15571] close(3) = 0 [pid 15571] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15571] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15571] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15571] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15571] open("./bus", O_RDONLY) = 3 [pid 15571] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15571] exit_group(0) = ? [pid 15571] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15571, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15572 attached , child_tidptr=0x5555575235d0) = 15572 [pid 15572] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15572] setpgid(0, 0) = 0 [pid 15572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15572] write(3, "1000", 4) = 4 [pid 15572] close(3) = 0 [pid 15572] memfd_create("syzkaller", 0) = 3 [pid 15572] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15572] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15572] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15572] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15572] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15572] ioctl(4, LOOP_CLR_FD) = 0 [pid 15572] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15572] close(4) = 0 [pid 15572] close(3) = 0 [pid 15572] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15572] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15572] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15572] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15572] open("./bus", O_RDONLY) = 3 [pid 15572] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15572] exit_group(0) = ? [pid 15572] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15572, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15573 attached , child_tidptr=0x5555575235d0) = 15573 [pid 15573] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15573] setpgid(0, 0) = 0 [pid 15573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15573] write(3, "1000", 4) = 4 [pid 15573] close(3) = 0 [pid 15573] memfd_create("syzkaller", 0) = 3 [pid 15573] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15573] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15573] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15573] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15573] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15573] ioctl(4, LOOP_CLR_FD) = 0 [pid 15573] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15573] close(4) = 0 [pid 15573] close(3) = 0 [pid 15573] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15573] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15573] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15573] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15573] open("./bus", O_RDONLY) = 3 [pid 15573] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15573] exit_group(0) = ? [pid 15573] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15573, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15574 ./strace-static-x86_64: Process 15574 attached [pid 15574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15574] setpgid(0, 0) = 0 [pid 15574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15574] write(3, "1000", 4) = 4 [pid 15574] close(3) = 0 [pid 15574] memfd_create("syzkaller", 0) = 3 [pid 15574] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15574] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15574] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15574] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15574] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15574] ioctl(4, LOOP_CLR_FD) = 0 [pid 15574] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15574] close(4) = 0 [pid 15574] close(3) = 0 [pid 15574] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15574] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15574] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15574] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15574] open("./bus", O_RDONLY) = 3 [pid 15574] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15574] exit_group(0) = ? [pid 15574] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15574, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15575 ./strace-static-x86_64: Process 15575 attached [pid 15575] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15575] setpgid(0, 0) = 0 [pid 15575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15575] write(3, "1000", 4) = 4 [pid 15575] close(3) = 0 [pid 15575] memfd_create("syzkaller", 0) = 3 [pid 15575] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15575] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15575] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15575] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15575] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15575] ioctl(4, LOOP_CLR_FD) = 0 [pid 15575] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15575] close(4) = 0 [pid 15575] close(3) = 0 [pid 15575] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15575] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15575] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15575] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15575] open("./bus", O_RDONLY) = 3 [pid 15575] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15575] exit_group(0) = ? [pid 15575] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15575, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15576 ./strace-static-x86_64: Process 15576 attached [pid 15576] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15576] setpgid(0, 0) = 0 [pid 15576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15576] write(3, "1000", 4) = 4 [pid 15576] close(3) = 0 [pid 15576] memfd_create("syzkaller", 0) = 3 [pid 15576] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15576] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15576] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15576] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15576] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15576] ioctl(4, LOOP_CLR_FD) = 0 [pid 15576] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15576] close(4) = 0 [pid 15576] close(3) = 0 [pid 15576] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15576] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15576] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15576] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15576] open("./bus", O_RDONLY) = 3 [pid 15576] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15576] exit_group(0) = ? [pid 15576] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15576, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15577 ./strace-static-x86_64: Process 15577 attached [pid 15577] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15577] setpgid(0, 0) = 0 [pid 15577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15577] write(3, "1000", 4) = 4 [pid 15577] close(3) = 0 [pid 15577] memfd_create("syzkaller", 0) = 3 [pid 15577] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15577] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15577] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15577] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15577] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15577] ioctl(4, LOOP_CLR_FD) = 0 [pid 15577] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15577] close(4) = 0 [pid 15577] close(3) = 0 [pid 15577] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15577] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15577] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15577] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15577] open("./bus", O_RDONLY) = 3 [pid 15577] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15577] exit_group(0) = ? [pid 15577] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15577, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15578 attached , child_tidptr=0x5555575235d0) = 15578 [pid 15578] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15578] setpgid(0, 0) = 0 [pid 15578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15578] write(3, "1000", 4) = 4 [pid 15578] close(3) = 0 [pid 15578] memfd_create("syzkaller", 0) = 3 [pid 15578] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15578] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15578] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15578] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15578] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15578] ioctl(4, LOOP_CLR_FD) = 0 [pid 15578] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15578] close(4) = 0 [pid 15578] close(3) = 0 [pid 15578] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15578] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15578] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15578] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15578] open("./bus", O_RDONLY) = 3 [pid 15578] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15578] exit_group(0) = ? [pid 15578] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15578, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15579 ./strace-static-x86_64: Process 15579 attached [pid 15579] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15579] setpgid(0, 0) = 0 [pid 15579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15579] write(3, "1000", 4) = 4 [pid 15579] close(3) = 0 [pid 15579] memfd_create("syzkaller", 0) = 3 [pid 15579] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15579] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15579] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15579] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15579] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15579] ioctl(4, LOOP_CLR_FD) = 0 [pid 15579] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15579] close(4) = 0 [pid 15579] close(3) = 0 [pid 15579] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15579] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15579] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15579] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15579] open("./bus", O_RDONLY) = 3 [pid 15579] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15579] exit_group(0) = ? [pid 15579] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15579, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15580 ./strace-static-x86_64: Process 15580 attached [pid 15580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15580] setpgid(0, 0) = 0 [pid 15580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15580] write(3, "1000", 4) = 4 [pid 15580] close(3) = 0 [pid 15580] memfd_create("syzkaller", 0) = 3 [pid 15580] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15580] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15580] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15580] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15580] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15580] ioctl(4, LOOP_CLR_FD) = 0 [pid 15580] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15580] close(4) = 0 [pid 15580] close(3) = 0 [pid 15580] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15580] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15580] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15580] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15580] open("./bus", O_RDONLY) = 3 [pid 15580] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15580] exit_group(0) = ? [pid 15580] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15580, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15581 attached , child_tidptr=0x5555575235d0) = 15581 [pid 15581] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15581] setpgid(0, 0) = 0 [pid 15581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15581] write(3, "1000", 4) = 4 [pid 15581] close(3) = 0 [pid 15581] memfd_create("syzkaller", 0) = 3 [pid 15581] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15581] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15581] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15581] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15581] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15581] ioctl(4, LOOP_CLR_FD) = 0 [pid 15581] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15581] close(4) = 0 [pid 15581] close(3) = 0 [pid 15581] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15581] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15581] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15581] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15581] open("./bus", O_RDONLY) = 3 [pid 15581] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15581] exit_group(0) = ? [pid 15581] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15581, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15582 attached , child_tidptr=0x5555575235d0) = 15582 [pid 15582] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15582] setpgid(0, 0) = 0 [pid 15582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15582] write(3, "1000", 4) = 4 [pid 15582] close(3) = 0 [pid 15582] memfd_create("syzkaller", 0) = 3 [pid 15582] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15582] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15582] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15582] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15582] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15582] ioctl(4, LOOP_CLR_FD) = 0 [pid 15582] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15582] close(4) = 0 [pid 15582] close(3) = 0 [pid 15582] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15582] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15582] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15582] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15582] open("./bus", O_RDONLY) = 3 [pid 15582] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15582] exit_group(0) = ? [pid 15582] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15582, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15583 attached , child_tidptr=0x5555575235d0) = 15583 [pid 15583] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15583] setpgid(0, 0) = 0 [pid 15583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15583] write(3, "1000", 4) = 4 [pid 15583] close(3) = 0 [pid 15583] memfd_create("syzkaller", 0) = 3 [pid 15583] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15583] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15583] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15583] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15583] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15583] ioctl(4, LOOP_CLR_FD) = 0 [pid 15583] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15583] close(4) = 0 [pid 15583] close(3) = 0 [pid 15583] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15583] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15583] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15583] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15583] open("./bus", O_RDONLY) = 3 [pid 15583] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15583] exit_group(0) = ? [pid 15583] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15583, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15584 ./strace-static-x86_64: Process 15584 attached [pid 15584] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15584] setpgid(0, 0) = 0 [pid 15584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15584] write(3, "1000", 4) = 4 [pid 15584] close(3) = 0 [pid 15584] memfd_create("syzkaller", 0) = 3 [pid 15584] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15584] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15584] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15584] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15584] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15584] ioctl(4, LOOP_CLR_FD) = 0 [pid 15584] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15584] close(4) = 0 [pid 15584] close(3) = 0 [pid 15584] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15584] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15584] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15584] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15584] open("./bus", O_RDONLY) = 3 [pid 15584] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15584] exit_group(0) = ? [pid 15584] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15584, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15585 attached , child_tidptr=0x5555575235d0) = 15585 [pid 15585] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15585] setpgid(0, 0) = 0 [pid 15585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15585] write(3, "1000", 4) = 4 [pid 15585] close(3) = 0 [pid 15585] memfd_create("syzkaller", 0) = 3 [pid 15585] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15585] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15585] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15585] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15585] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15585] ioctl(4, LOOP_CLR_FD) = 0 [pid 15585] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15585] close(4) = 0 [pid 15585] close(3) = 0 [pid 15585] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15585] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15585] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15585] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15585] open("./bus", O_RDONLY) = 3 [pid 15585] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15585] exit_group(0) = ? [pid 15585] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15585, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15586 ./strace-static-x86_64: Process 15586 attached [pid 15586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15586] setpgid(0, 0) = 0 [pid 15586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15586] write(3, "1000", 4) = 4 [pid 15586] close(3) = 0 [pid 15586] memfd_create("syzkaller", 0) = 3 [pid 15586] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15586] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15586] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15586] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15586] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15586] ioctl(4, LOOP_CLR_FD) = 0 [pid 15586] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15586] close(4) = 0 [pid 15586] close(3) = 0 [pid 15586] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15586] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15586] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15586] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15586] open("./bus", O_RDONLY) = 3 [pid 15586] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15586] exit_group(0) = ? [pid 15586] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15586, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15587 attached , child_tidptr=0x5555575235d0) = 15587 [pid 15587] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15587] setpgid(0, 0) = 0 [pid 15587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15587] write(3, "1000", 4) = 4 [pid 15587] close(3) = 0 [pid 15587] memfd_create("syzkaller", 0) = 3 [pid 15587] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15587] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15587] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15587] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15587] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15587] ioctl(4, LOOP_CLR_FD) = 0 [pid 15587] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15587] close(4) = 0 [pid 15587] close(3) = 0 [pid 15587] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15587] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15587] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15587] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15587] open("./bus", O_RDONLY) = 3 [pid 15587] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15587] exit_group(0) = ? [pid 15587] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15587, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15588 ./strace-static-x86_64: Process 15588 attached [pid 15588] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15588] setpgid(0, 0) = 0 [pid 15588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15588] write(3, "1000", 4) = 4 [pid 15588] close(3) = 0 [pid 15588] memfd_create("syzkaller", 0) = 3 [pid 15588] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15588] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15588] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15588] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15588] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15588] ioctl(4, LOOP_CLR_FD) = 0 [pid 15588] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15588] close(4) = 0 [pid 15588] close(3) = 0 [pid 15588] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15588] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15588] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15588] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15588] open("./bus", O_RDONLY) = 3 [pid 15588] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15588] exit_group(0) = ? [pid 15588] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15588, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15589 ./strace-static-x86_64: Process 15589 attached [pid 15589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15589] setpgid(0, 0) = 0 [pid 15589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15589] write(3, "1000", 4) = 4 [pid 15589] close(3) = 0 [pid 15589] memfd_create("syzkaller", 0) = 3 [pid 15589] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15589] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15589] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15589] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15589] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15589] ioctl(4, LOOP_CLR_FD) = 0 [pid 15589] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15589] close(4) = 0 [pid 15589] close(3) = 0 [pid 15589] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15589] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15589] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15589] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15589] open("./bus", O_RDONLY) = 3 [pid 15589] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15589] exit_group(0) = ? [pid 15589] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15589, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15590 attached , child_tidptr=0x5555575235d0) = 15590 [pid 15590] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15590] setpgid(0, 0) = 0 [pid 15590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15590] write(3, "1000", 4) = 4 [pid 15590] close(3) = 0 [pid 15590] memfd_create("syzkaller", 0) = 3 [pid 15590] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15590] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15590] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15590] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15590] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15590] ioctl(4, LOOP_CLR_FD) = 0 [pid 15590] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15590] close(4) = 0 [pid 15590] close(3) = 0 [pid 15590] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15590] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15590] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15590] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15590] open("./bus", O_RDONLY) = 3 [pid 15590] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15590] exit_group(0) = ? [pid 15590] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15590, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15591 attached , child_tidptr=0x5555575235d0) = 15591 [pid 15591] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15591] setpgid(0, 0) = 0 [pid 15591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15591] write(3, "1000", 4) = 4 [pid 15591] close(3) = 0 [pid 15591] memfd_create("syzkaller", 0) = 3 [pid 15591] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15591] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15591] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15591] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15591] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15591] ioctl(4, LOOP_CLR_FD) = 0 [pid 15591] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15591] close(4) = 0 [pid 15591] close(3) = 0 [pid 15591] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15591] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15591] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15591] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15591] open("./bus", O_RDONLY) = 3 [pid 15591] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15591] exit_group(0) = ? [pid 15591] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15591, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15592 attached , child_tidptr=0x5555575235d0) = 15592 [pid 15592] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15592] setpgid(0, 0) = 0 [pid 15592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15592] write(3, "1000", 4) = 4 [pid 15592] close(3) = 0 [pid 15592] memfd_create("syzkaller", 0) = 3 [pid 15592] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15592] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15592] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15592] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15592] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15592] ioctl(4, LOOP_CLR_FD) = 0 [pid 15592] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15592] close(4) = 0 [pid 15592] close(3) = 0 [pid 15592] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15592] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15592] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15592] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15592] open("./bus", O_RDONLY) = 3 [pid 15592] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15592] exit_group(0) = ? [pid 15592] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15592, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15593 ./strace-static-x86_64: Process 15593 attached [pid 15593] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15593] setpgid(0, 0) = 0 [pid 15593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15593] write(3, "1000", 4) = 4 [pid 15593] close(3) = 0 [pid 15593] memfd_create("syzkaller", 0) = 3 [pid 15593] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15593] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15593] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15593] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15593] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15593] ioctl(4, LOOP_CLR_FD) = 0 [pid 15593] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15593] close(4) = 0 [pid 15593] close(3) = 0 [pid 15593] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15593] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15593] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15593] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15593] open("./bus", O_RDONLY) = 3 [pid 15593] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15593] exit_group(0) = ? [pid 15593] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15593, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15594 ./strace-static-x86_64: Process 15594 attached [pid 15594] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15594] setpgid(0, 0) = 0 [pid 15594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15594] write(3, "1000", 4) = 4 [pid 15594] close(3) = 0 [pid 15594] memfd_create("syzkaller", 0) = 3 [pid 15594] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15594] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15594] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15594] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15594] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15594] ioctl(4, LOOP_CLR_FD) = 0 [pid 15594] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15594] close(4) = 0 [pid 15594] close(3) = 0 [pid 15594] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15594] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15594] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15594] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15594] open("./bus", O_RDONLY) = 3 [pid 15594] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15594] exit_group(0) = ? [pid 15594] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15594, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15595 ./strace-static-x86_64: Process 15595 attached [pid 15595] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15595] setpgid(0, 0) = 0 [pid 15595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15595] write(3, "1000", 4) = 4 [pid 15595] close(3) = 0 [pid 15595] memfd_create("syzkaller", 0) = 3 [pid 15595] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15595] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15595] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15595] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15595] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15595] ioctl(4, LOOP_CLR_FD) = 0 [pid 15595] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15595] close(4) = 0 [pid 15595] close(3) = 0 [pid 15595] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15595] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15595] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15595] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15595] open("./bus", O_RDONLY) = 3 [pid 15595] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15595] exit_group(0) = ? [pid 15595] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15595, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15596 attached , child_tidptr=0x5555575235d0) = 15596 [pid 15596] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15596] setpgid(0, 0) = 0 [pid 15596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15596] write(3, "1000", 4) = 4 [pid 15596] close(3) = 0 [pid 15596] memfd_create("syzkaller", 0) = 3 [pid 15596] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15596] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15596] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15596] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15596] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15596] ioctl(4, LOOP_CLR_FD) = 0 [pid 15596] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15596] close(4) = 0 [pid 15596] close(3) = 0 [pid 15596] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15596] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15596] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15596] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15596] open("./bus", O_RDONLY) = 3 [pid 15596] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15596] exit_group(0) = ? [pid 15596] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15596, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15597 attached , child_tidptr=0x5555575235d0) = 15597 [pid 15597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15597] setpgid(0, 0) = 0 [pid 15597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15597] write(3, "1000", 4) = 4 [pid 15597] close(3) = 0 [pid 15597] memfd_create("syzkaller", 0) = 3 [pid 15597] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15597] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15597] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15597] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15597] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15597] ioctl(4, LOOP_CLR_FD) = 0 [pid 15597] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15597] close(4) = 0 [pid 15597] close(3) = 0 [pid 15597] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15597] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15597] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15597] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15597] open("./bus", O_RDONLY) = 3 [pid 15597] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15597] exit_group(0) = ? [pid 15597] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15597, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15598 ./strace-static-x86_64: Process 15598 attached [pid 15598] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15598] setpgid(0, 0) = 0 [pid 15598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15598] write(3, "1000", 4) = 4 [pid 15598] close(3) = 0 [pid 15598] memfd_create("syzkaller", 0) = 3 [pid 15598] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15598] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15598] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15598] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15598] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15598] ioctl(4, LOOP_CLR_FD) = 0 [pid 15598] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15598] close(4) = 0 [pid 15598] close(3) = 0 [pid 15598] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15598] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15598] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15598] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15598] open("./bus", O_RDONLY) = 3 [pid 15598] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15598] exit_group(0) = ? [pid 15598] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15598, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15599 attached , child_tidptr=0x5555575235d0) = 15599 [pid 15599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15599] setpgid(0, 0) = 0 [pid 15599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15599] write(3, "1000", 4) = 4 [pid 15599] close(3) = 0 [pid 15599] memfd_create("syzkaller", 0) = 3 [pid 15599] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15599] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15599] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15599] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15599] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15599] ioctl(4, LOOP_CLR_FD) = 0 [pid 15599] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15599] close(4) = 0 [pid 15599] close(3) = 0 [pid 15599] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15599] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15599] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15599] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15599] open("./bus", O_RDONLY) = 3 [pid 15599] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15599] exit_group(0) = ? [pid 15599] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15599, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15600 ./strace-static-x86_64: Process 15600 attached [pid 15600] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15600] setpgid(0, 0) = 0 [pid 15600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15600] write(3, "1000", 4) = 4 [pid 15600] close(3) = 0 [pid 15600] memfd_create("syzkaller", 0) = 3 [pid 15600] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15600] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15600] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15600] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15600] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15600] ioctl(4, LOOP_CLR_FD) = 0 [pid 15600] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15600] close(4) = 0 [pid 15600] close(3) = 0 [pid 15600] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15600] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15600] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15600] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15600] open("./bus", O_RDONLY) = 3 [pid 15600] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15600] exit_group(0) = ? [pid 15600] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15600, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15601 attached , child_tidptr=0x5555575235d0) = 15601 [pid 15601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15601] setpgid(0, 0) = 0 [pid 15601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15601] write(3, "1000", 4) = 4 [pid 15601] close(3) = 0 [pid 15601] memfd_create("syzkaller", 0) = 3 [pid 15601] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15601] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15601] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15601] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15601] ioctl(4, LOOP_CLR_FD) = 0 [pid 15601] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15601] close(4) = 0 [pid 15601] close(3) = 0 [pid 15601] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15601] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15601] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15601] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15601] open("./bus", O_RDONLY) = 3 [pid 15601] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15601] exit_group(0) = ? [pid 15601] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15601, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15602 attached , child_tidptr=0x5555575235d0) = 15602 [pid 15602] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15602] setpgid(0, 0) = 0 [pid 15602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15602] write(3, "1000", 4) = 4 [pid 15602] close(3) = 0 [pid 15602] memfd_create("syzkaller", 0) = 3 [pid 15602] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15602] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15602] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15602] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15602] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15602] ioctl(4, LOOP_CLR_FD) = 0 [pid 15602] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15602] close(4) = 0 [pid 15602] close(3) = 0 [pid 15602] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15602] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15602] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15602] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15602] open("./bus", O_RDONLY) = 3 [pid 15602] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15602] exit_group(0) = ? [pid 15602] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15602, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15603 ./strace-static-x86_64: Process 15603 attached [pid 15603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15603] setpgid(0, 0) = 0 [pid 15603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15603] write(3, "1000", 4) = 4 [pid 15603] close(3) = 0 [pid 15603] memfd_create("syzkaller", 0) = 3 [pid 15603] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15603] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15603] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15603] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15603] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15603] ioctl(4, LOOP_CLR_FD) = 0 [pid 15603] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15603] close(4) = 0 [pid 15603] close(3) = 0 [pid 15603] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15603] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15603] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15603] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15603] open("./bus", O_RDONLY) = 3 [pid 15603] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15603] exit_group(0) = ? [pid 15603] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15603, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15604 ./strace-static-x86_64: Process 15604 attached [pid 15604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15604] setpgid(0, 0) = 0 [pid 15604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15604] write(3, "1000", 4) = 4 [pid 15604] close(3) = 0 [pid 15604] memfd_create("syzkaller", 0) = 3 [pid 15604] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15604] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15604] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15604] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15604] ioctl(4, LOOP_CLR_FD) = 0 [pid 15604] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15604] close(4) = 0 [pid 15604] close(3) = 0 [pid 15604] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15604] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15604] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15604] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15604] open("./bus", O_RDONLY) = 3 [pid 15604] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15604] exit_group(0) = ? [pid 15604] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15604, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15605 ./strace-static-x86_64: Process 15605 attached [pid 15605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15605] setpgid(0, 0) = 0 [pid 15605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15605] write(3, "1000", 4) = 4 [pid 15605] close(3) = 0 [pid 15605] memfd_create("syzkaller", 0) = 3 [pid 15605] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15605] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15605] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15605] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15605] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15605] ioctl(4, LOOP_CLR_FD) = 0 [pid 15605] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15605] close(4) = 0 [pid 15605] close(3) = 0 [pid 15605] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15605] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15605] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15605] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15605] open("./bus", O_RDONLY) = 3 [pid 15605] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15605] exit_group(0) = ? [pid 15605] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15605, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15606 attached , child_tidptr=0x5555575235d0) = 15606 [pid 15606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15606] setpgid(0, 0) = 0 [pid 15606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15606] write(3, "1000", 4) = 4 [pid 15606] close(3) = 0 [pid 15606] memfd_create("syzkaller", 0) = 3 [pid 15606] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15606] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15606] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15606] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15606] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15606] ioctl(4, LOOP_CLR_FD) = 0 [pid 15606] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15606] close(4) = 0 [pid 15606] close(3) = 0 [pid 15606] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15606] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15606] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15606] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15606] open("./bus", O_RDONLY) = 3 [pid 15606] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15606] exit_group(0) = ? [pid 15606] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15606, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15607 attached , child_tidptr=0x5555575235d0) = 15607 [pid 15607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15607] setpgid(0, 0) = 0 [pid 15607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15607] write(3, "1000", 4) = 4 [pid 15607] close(3) = 0 [pid 15607] memfd_create("syzkaller", 0) = 3 [pid 15607] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15607] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15607] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15607] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15607] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15607] ioctl(4, LOOP_CLR_FD) = 0 [pid 15607] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15607] close(4) = 0 [pid 15607] close(3) = 0 [pid 15607] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15607] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15607] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15607] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15607] open("./bus", O_RDONLY) = 3 [pid 15607] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15607] exit_group(0) = ? [pid 15607] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15607, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15608 ./strace-static-x86_64: Process 15608 attached [pid 15608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15608] setpgid(0, 0) = 0 [pid 15608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15608] write(3, "1000", 4) = 4 [pid 15608] close(3) = 0 [pid 15608] memfd_create("syzkaller", 0) = 3 [pid 15608] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15608] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15608] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15608] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15608] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15608] ioctl(4, LOOP_CLR_FD) = 0 [pid 15608] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15608] close(4) = 0 [pid 15608] close(3) = 0 [pid 15608] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15608] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15608] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15608] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15608] open("./bus", O_RDONLY) = 3 [pid 15608] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15608] exit_group(0) = ? [pid 15608] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15608, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15609 ./strace-static-x86_64: Process 15609 attached [pid 15609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15609] setpgid(0, 0) = 0 [pid 15609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15609] write(3, "1000", 4) = 4 [pid 15609] close(3) = 0 [pid 15609] memfd_create("syzkaller", 0) = 3 [pid 15609] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15609] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15609] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15609] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15609] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15609] ioctl(4, LOOP_CLR_FD) = 0 [pid 15609] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15609] close(4) = 0 [pid 15609] close(3) = 0 [pid 15609] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15609] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15609] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15609] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15609] open("./bus", O_RDONLY) = 3 [pid 15609] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15609] exit_group(0) = ? [pid 15609] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15609, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15610 attached , child_tidptr=0x5555575235d0) = 15610 [pid 15610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15610] setpgid(0, 0) = 0 [pid 15610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15610] write(3, "1000", 4) = 4 [pid 15610] close(3) = 0 [pid 15610] memfd_create("syzkaller", 0) = 3 [pid 15610] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15610] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15610] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15610] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15610] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15610] ioctl(4, LOOP_CLR_FD) = 0 [pid 15610] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15610] close(4) = 0 [pid 15610] close(3) = 0 [pid 15610] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15610] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15610] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15610] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15610] open("./bus", O_RDONLY) = 3 [pid 15610] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15610] exit_group(0) = ? [pid 15610] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15610, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15611 attached , child_tidptr=0x5555575235d0) = 15611 [pid 15611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15611] setpgid(0, 0) = 0 [pid 15611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15611] write(3, "1000", 4) = 4 [pid 15611] close(3) = 0 [pid 15611] memfd_create("syzkaller", 0) = 3 [pid 15611] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15611] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15611] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15611] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15611] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15611] ioctl(4, LOOP_CLR_FD) = 0 [pid 15611] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15611] close(4) = 0 [pid 15611] close(3) = 0 [pid 15611] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15611] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15611] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15611] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15611] open("./bus", O_RDONLY) = 3 [pid 15611] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15611] exit_group(0) = ? [pid 15611] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15611, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15612 attached , child_tidptr=0x5555575235d0) = 15612 [pid 15612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15612] setpgid(0, 0) = 0 [pid 15612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15612] write(3, "1000", 4) = 4 [pid 15612] close(3) = 0 [pid 15612] memfd_create("syzkaller", 0) = 3 [pid 15612] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15612] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15612] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15612] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15612] ioctl(4, LOOP_CLR_FD) = 0 [pid 15612] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15612] close(4) = 0 [pid 15612] close(3) = 0 [pid 15612] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15612] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15612] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15612] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15612] open("./bus", O_RDONLY) = 3 [pid 15612] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15612] exit_group(0) = ? [pid 15612] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15612, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15613 ./strace-static-x86_64: Process 15613 attached [pid 15613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15613] setpgid(0, 0) = 0 [pid 15613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15613] write(3, "1000", 4) = 4 [pid 15613] close(3) = 0 [pid 15613] memfd_create("syzkaller", 0) = 3 [pid 15613] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15613] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15613] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15613] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15613] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15613] ioctl(4, LOOP_CLR_FD) = 0 [pid 15613] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15613] close(4) = 0 [pid 15613] close(3) = 0 [pid 15613] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15613] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15613] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15613] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15613] open("./bus", O_RDONLY) = 3 [pid 15613] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15613] exit_group(0) = ? [pid 15613] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15613, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15614 ./strace-static-x86_64: Process 15614 attached [pid 15614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15614] setpgid(0, 0) = 0 [pid 15614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15614] write(3, "1000", 4) = 4 [pid 15614] close(3) = 0 [pid 15614] memfd_create("syzkaller", 0) = 3 [pid 15614] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15614] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15614] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15614] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15614] ioctl(4, LOOP_CLR_FD) = 0 [pid 15614] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15614] close(4) = 0 [pid 15614] close(3) = 0 [pid 15614] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15614] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15614] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15614] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15614] open("./bus", O_RDONLY) = 3 [pid 15614] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15614] exit_group(0) = ? [pid 15614] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15614, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15615 ./strace-static-x86_64: Process 15615 attached [pid 15615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15615] setpgid(0, 0) = 0 [pid 15615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15615] write(3, "1000", 4) = 4 [pid 15615] close(3) = 0 [pid 15615] memfd_create("syzkaller", 0) = 3 [pid 15615] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15615] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15615] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15615] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15615] ioctl(4, LOOP_CLR_FD) = 0 [pid 15615] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15615] close(4) = 0 [pid 15615] close(3) = 0 [pid 15615] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15615] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15615] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15615] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15615] open("./bus", O_RDONLY) = 3 [pid 15615] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15615] exit_group(0) = ? [pid 15615] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15615, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15616 ./strace-static-x86_64: Process 15616 attached [pid 15616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15616] setpgid(0, 0) = 0 [pid 15616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15616] write(3, "1000", 4) = 4 [pid 15616] close(3) = 0 [pid 15616] memfd_create("syzkaller", 0) = 3 [pid 15616] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15616] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15616] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15616] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15616] ioctl(4, LOOP_CLR_FD) = 0 [pid 15616] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15616] close(4) = 0 [pid 15616] close(3) = 0 [pid 15616] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15616] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15616] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15616] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15616] open("./bus", O_RDONLY) = 3 [pid 15616] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15616] exit_group(0) = ? [pid 15616] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15616, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15617 ./strace-static-x86_64: Process 15617 attached [pid 15617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15617] setpgid(0, 0) = 0 [pid 15617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15617] write(3, "1000", 4) = 4 [pid 15617] close(3) = 0 [pid 15617] memfd_create("syzkaller", 0) = 3 [pid 15617] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15617] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15617] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15617] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15617] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15617] ioctl(4, LOOP_CLR_FD) = 0 [pid 15617] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15617] close(4) = 0 [pid 15617] close(3) = 0 [pid 15617] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15617] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15617] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15617] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15617] open("./bus", O_RDONLY) = 3 [pid 15617] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15617] exit_group(0) = ? [pid 15617] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15617, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15618 attached , child_tidptr=0x5555575235d0) = 15618 [pid 15618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15618] setpgid(0, 0) = 0 [pid 15618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15618] write(3, "1000", 4) = 4 [pid 15618] close(3) = 0 [pid 15618] memfd_create("syzkaller", 0) = 3 [pid 15618] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15618] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15618] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15618] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15618] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15618] ioctl(4, LOOP_CLR_FD) = 0 [pid 15618] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15618] close(4) = 0 [pid 15618] close(3) = 0 [pid 15618] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15618] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15618] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15618] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15618] open("./bus", O_RDONLY) = 3 [pid 15618] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15618] exit_group(0) = ? [pid 15618] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15618, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15619 ./strace-static-x86_64: Process 15619 attached [pid 15619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15619] setpgid(0, 0) = 0 [pid 15619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15619] write(3, "1000", 4) = 4 [pid 15619] close(3) = 0 [pid 15619] memfd_create("syzkaller", 0) = 3 [pid 15619] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15619] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15619] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15619] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15619] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15619] ioctl(4, LOOP_CLR_FD) = 0 [pid 15619] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15619] close(4) = 0 [pid 15619] close(3) = 0 [pid 15619] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15619] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15619] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15619] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15619] open("./bus", O_RDONLY) = 3 [pid 15619] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15619] exit_group(0) = ? [pid 15619] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15619, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15620 ./strace-static-x86_64: Process 15620 attached [pid 15620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15620] setpgid(0, 0) = 0 [pid 15620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15620] write(3, "1000", 4) = 4 [pid 15620] close(3) = 0 [pid 15620] memfd_create("syzkaller", 0) = 3 [pid 15620] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15620] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15620] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15620] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15620] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15620] ioctl(4, LOOP_CLR_FD) = 0 [pid 15620] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15620] close(4) = 0 [pid 15620] close(3) = 0 [pid 15620] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15620] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15620] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15620] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15620] open("./bus", O_RDONLY) = 3 [pid 15620] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15620] exit_group(0) = ? [pid 15620] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15620, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15621 attached , child_tidptr=0x5555575235d0) = 15621 [pid 15621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15621] setpgid(0, 0) = 0 [pid 15621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15621] write(3, "1000", 4) = 4 [pid 15621] close(3) = 0 [pid 15621] memfd_create("syzkaller", 0) = 3 [pid 15621] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15621] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15621] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15621] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15621] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15621] ioctl(4, LOOP_CLR_FD) = 0 [pid 15621] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15621] close(4) = 0 [pid 15621] close(3) = 0 [pid 15621] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15621] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15621] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15621] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15621] open("./bus", O_RDONLY) = 3 [pid 15621] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15621] exit_group(0) = ? [pid 15621] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15621, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15622 attached , child_tidptr=0x5555575235d0) = 15622 [pid 15622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15622] setpgid(0, 0) = 0 [pid 15622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15622] write(3, "1000", 4) = 4 [pid 15622] close(3) = 0 [pid 15622] memfd_create("syzkaller", 0) = 3 [pid 15622] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15622] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15622] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15622] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15622] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15622] ioctl(4, LOOP_CLR_FD) = 0 [pid 15622] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15622] close(4) = 0 [pid 15622] close(3) = 0 [pid 15622] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15622] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15622] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15622] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15622] open("./bus", O_RDONLY) = 3 [pid 15622] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15622] exit_group(0) = ? [pid 15622] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15622, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15623 attached , child_tidptr=0x5555575235d0) = 15623 [pid 15623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15623] setpgid(0, 0) = 0 [pid 15623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15623] write(3, "1000", 4) = 4 [pid 15623] close(3) = 0 [pid 15623] memfd_create("syzkaller", 0) = 3 [pid 15623] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15623] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15623] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15623] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15623] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15623] ioctl(4, LOOP_CLR_FD) = 0 [pid 15623] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15623] close(4) = 0 [pid 15623] close(3) = 0 [pid 15623] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15623] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15623] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15623] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15623] open("./bus", O_RDONLY) = 3 [pid 15623] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15623] exit_group(0) = ? [pid 15623] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15623, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15624 ./strace-static-x86_64: Process 15624 attached [pid 15624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15624] setpgid(0, 0) = 0 [pid 15624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15624] write(3, "1000", 4) = 4 [pid 15624] close(3) = 0 [pid 15624] memfd_create("syzkaller", 0) = 3 [pid 15624] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15624] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15624] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15624] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15624] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15624] ioctl(4, LOOP_CLR_FD) = 0 [pid 15624] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15624] close(4) = 0 [pid 15624] close(3) = 0 [pid 15624] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15624] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15624] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15624] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15624] open("./bus", O_RDONLY) = 3 [pid 15624] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15624] exit_group(0) = ? [pid 15624] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15624, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15625 ./strace-static-x86_64: Process 15625 attached [pid 15625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15625] setpgid(0, 0) = 0 [pid 15625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15625] write(3, "1000", 4) = 4 [pid 15625] close(3) = 0 [pid 15625] memfd_create("syzkaller", 0) = 3 [pid 15625] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15625] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15625] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15625] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15625] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15625] ioctl(4, LOOP_CLR_FD) = 0 [pid 15625] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15625] close(4) = 0 [pid 15625] close(3) = 0 [pid 15625] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15625] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15625] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15625] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15625] open("./bus", O_RDONLY) = 3 [pid 15625] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15625] exit_group(0) = ? [pid 15625] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15625, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15626 ./strace-static-x86_64: Process 15626 attached [pid 15626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15626] setpgid(0, 0) = 0 [pid 15626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15626] write(3, "1000", 4) = 4 [pid 15626] close(3) = 0 [pid 15626] memfd_create("syzkaller", 0) = 3 [pid 15626] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15626] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15626] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15626] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15626] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15626] ioctl(4, LOOP_CLR_FD) = 0 [pid 15626] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15626] close(4) = 0 [pid 15626] close(3) = 0 [pid 15626] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15626] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15626] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15626] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15626] open("./bus", O_RDONLY) = 3 [pid 15626] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15626] exit_group(0) = ? [pid 15626] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15626, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15627 attached , child_tidptr=0x5555575235d0) = 15627 [pid 15627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15627] setpgid(0, 0) = 0 [pid 15627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15627] write(3, "1000", 4) = 4 [pid 15627] close(3) = 0 [pid 15627] memfd_create("syzkaller", 0) = 3 [pid 15627] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15627] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15627] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15627] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15627] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15627] ioctl(4, LOOP_CLR_FD) = 0 [pid 15627] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15627] close(4) = 0 [pid 15627] close(3) = 0 [pid 15627] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15627] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15627] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15627] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15627] open("./bus", O_RDONLY) = 3 [pid 15627] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15627] exit_group(0) = ? [pid 15627] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15627, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15628 ./strace-static-x86_64: Process 15628 attached [pid 15628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15628] setpgid(0, 0) = 0 [pid 15628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15628] write(3, "1000", 4) = 4 [pid 15628] close(3) = 0 [pid 15628] memfd_create("syzkaller", 0) = 3 [pid 15628] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15628] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15628] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15628] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15628] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15628] ioctl(4, LOOP_CLR_FD) = 0 [pid 15628] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15628] close(4) = 0 [pid 15628] close(3) = 0 [pid 15628] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15628] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15628] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15628] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15628] open("./bus", O_RDONLY) = 3 [pid 15628] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15628] exit_group(0) = ? [pid 15628] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15628, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15629 ./strace-static-x86_64: Process 15629 attached [pid 15629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15629] setpgid(0, 0) = 0 [pid 15629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15629] write(3, "1000", 4) = 4 [pid 15629] close(3) = 0 [pid 15629] memfd_create("syzkaller", 0) = 3 [pid 15629] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15629] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15629] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15629] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15629] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15629] ioctl(4, LOOP_CLR_FD) = 0 [pid 15629] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15629] close(4) = 0 [pid 15629] close(3) = 0 [pid 15629] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15629] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15629] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15629] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15629] open("./bus", O_RDONLY) = 3 [pid 15629] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15629] exit_group(0) = ? [pid 15629] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15629, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15630 attached , child_tidptr=0x5555575235d0) = 15630 [pid 15630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15630] setpgid(0, 0) = 0 [pid 15630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15630] write(3, "1000", 4) = 4 [pid 15630] close(3) = 0 [pid 15630] memfd_create("syzkaller", 0) = 3 [pid 15630] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15630] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15630] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15630] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15630] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15630] ioctl(4, LOOP_CLR_FD) = 0 [pid 15630] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15630] close(4) = 0 [pid 15630] close(3) = 0 [pid 15630] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15630] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15630] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15630] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15630] open("./bus", O_RDONLY) = 3 [pid 15630] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15630] exit_group(0) = ? [pid 15630] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15630, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15631 ./strace-static-x86_64: Process 15631 attached [pid 15631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15631] setpgid(0, 0) = 0 [pid 15631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15631] write(3, "1000", 4) = 4 [pid 15631] close(3) = 0 [pid 15631] memfd_create("syzkaller", 0) = 3 [pid 15631] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15631] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15631] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15631] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15631] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15631] ioctl(4, LOOP_CLR_FD) = 0 [pid 15631] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15631] close(4) = 0 [pid 15631] close(3) = 0 [pid 15631] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15631] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15631] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15631] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15631] open("./bus", O_RDONLY) = 3 [pid 15631] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15631] exit_group(0) = ? [pid 15631] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15631, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15632 attached , child_tidptr=0x5555575235d0) = 15632 [pid 15632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15632] setpgid(0, 0) = 0 [pid 15632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15632] write(3, "1000", 4) = 4 [pid 15632] close(3) = 0 [pid 15632] memfd_create("syzkaller", 0) = 3 [pid 15632] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15632] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15632] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15632] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15632] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15632] ioctl(4, LOOP_CLR_FD) = 0 [pid 15632] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15632] close(4) = 0 [pid 15632] close(3) = 0 [pid 15632] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15632] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15632] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15632] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15632] open("./bus", O_RDONLY) = 3 [pid 15632] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15632] exit_group(0) = ? [pid 15632] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15632, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15633 attached , child_tidptr=0x5555575235d0) = 15633 [pid 15633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15633] setpgid(0, 0) = 0 [pid 15633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15633] write(3, "1000", 4) = 4 [pid 15633] close(3) = 0 [pid 15633] memfd_create("syzkaller", 0) = 3 [pid 15633] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15633] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15633] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15633] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15633] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15633] ioctl(4, LOOP_CLR_FD) = 0 [pid 15633] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15633] close(4) = 0 [pid 15633] close(3) = 0 [pid 15633] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15633] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15633] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15633] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15633] open("./bus", O_RDONLY) = 3 [pid 15633] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15633] exit_group(0) = ? [pid 15633] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15633, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15634 ./strace-static-x86_64: Process 15634 attached [pid 15634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15634] setpgid(0, 0) = 0 [pid 15634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15634] write(3, "1000", 4) = 4 [pid 15634] close(3) = 0 [pid 15634] memfd_create("syzkaller", 0) = 3 [pid 15634] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15634] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15634] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15634] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15634] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15634] ioctl(4, LOOP_CLR_FD) = 0 [pid 15634] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15634] close(4) = 0 [pid 15634] close(3) = 0 [pid 15634] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15634] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15634] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15634] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15634] open("./bus", O_RDONLY) = 3 [pid 15634] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15634] exit_group(0) = ? [pid 15634] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15634, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15635 ./strace-static-x86_64: Process 15635 attached [pid 15635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15635] setpgid(0, 0) = 0 [pid 15635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15635] write(3, "1000", 4) = 4 [pid 15635] close(3) = 0 [pid 15635] memfd_create("syzkaller", 0) = 3 [pid 15635] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15635] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15635] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15635] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15635] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15635] ioctl(4, LOOP_CLR_FD) = 0 [pid 15635] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15635] close(4) = 0 [pid 15635] close(3) = 0 [pid 15635] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15635] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15635] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15635] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15635] open("./bus", O_RDONLY) = 3 [pid 15635] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15635] exit_group(0) = ? [pid 15635] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15635, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15636 attached , child_tidptr=0x5555575235d0) = 15636 [pid 15636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15636] setpgid(0, 0) = 0 [pid 15636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15636] write(3, "1000", 4) = 4 [pid 15636] close(3) = 0 [pid 15636] memfd_create("syzkaller", 0) = 3 [pid 15636] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15636] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15636] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15636] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15636] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15636] ioctl(4, LOOP_CLR_FD) = 0 [pid 15636] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15636] close(4) = 0 [pid 15636] close(3) = 0 [pid 15636] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15636] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15636] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15636] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15636] open("./bus", O_RDONLY) = 3 [pid 15636] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15636] exit_group(0) = ? [pid 15636] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15636, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15637 attached , child_tidptr=0x5555575235d0) = 15637 [pid 15637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15637] setpgid(0, 0) = 0 [pid 15637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15637] write(3, "1000", 4) = 4 [pid 15637] close(3) = 0 [pid 15637] memfd_create("syzkaller", 0) = 3 [pid 15637] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15637] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15637] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15637] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15637] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15637] ioctl(4, LOOP_CLR_FD) = 0 [pid 15637] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15637] close(4) = 0 [pid 15637] close(3) = 0 [pid 15637] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15637] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15637] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15637] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15637] open("./bus", O_RDONLY) = 3 [pid 15637] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15637] exit_group(0) = ? [pid 15637] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15637, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15638 ./strace-static-x86_64: Process 15638 attached [pid 15638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15638] setpgid(0, 0) = 0 [pid 15638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15638] write(3, "1000", 4) = 4 [pid 15638] close(3) = 0 [pid 15638] memfd_create("syzkaller", 0) = 3 [pid 15638] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15638] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15638] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15638] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15638] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15638] ioctl(4, LOOP_CLR_FD) = 0 [pid 15638] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15638] close(4) = 0 [pid 15638] close(3) = 0 [pid 15638] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15638] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15638] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15638] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15638] open("./bus", O_RDONLY) = 3 [pid 15638] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15638] exit_group(0) = ? [pid 15638] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15638, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15639 ./strace-static-x86_64: Process 15639 attached [pid 15639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15639] setpgid(0, 0) = 0 [pid 15639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15639] write(3, "1000", 4) = 4 [pid 15639] close(3) = 0 [pid 15639] memfd_create("syzkaller", 0) = 3 [pid 15639] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15639] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15639] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15639] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15639] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15639] ioctl(4, LOOP_CLR_FD) = 0 [pid 15639] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15639] close(4) = 0 [pid 15639] close(3) = 0 [pid 15639] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15639] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15639] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15639] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15639] open("./bus", O_RDONLY) = 3 [pid 15639] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15639] exit_group(0) = ? [pid 15639] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15639, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15640 ./strace-static-x86_64: Process 15640 attached [pid 15640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15640] setpgid(0, 0) = 0 [pid 15640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15640] write(3, "1000", 4) = 4 [pid 15640] close(3) = 0 [pid 15640] memfd_create("syzkaller", 0) = 3 [pid 15640] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15640] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15640] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15640] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15640] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15640] ioctl(4, LOOP_CLR_FD) = 0 [pid 15640] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15640] close(4) = 0 [pid 15640] close(3) = 0 [pid 15640] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15640] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15640] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15640] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15640] open("./bus", O_RDONLY) = 3 [pid 15640] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15640] exit_group(0) = ? [pid 15640] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15640, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15641 ./strace-static-x86_64: Process 15641 attached [pid 15641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15641] setpgid(0, 0) = 0 [pid 15641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15641] write(3, "1000", 4) = 4 [pid 15641] close(3) = 0 [pid 15641] memfd_create("syzkaller", 0) = 3 [pid 15641] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15641] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15641] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15641] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15641] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15641] ioctl(4, LOOP_CLR_FD) = 0 [pid 15641] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15641] close(4) = 0 [pid 15641] close(3) = 0 [pid 15641] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15641] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15641] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15641] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15641] open("./bus", O_RDONLY) = 3 [pid 15641] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15641] exit_group(0) = ? [pid 15641] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15641, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15642 ./strace-static-x86_64: Process 15642 attached [pid 15642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15642] setpgid(0, 0) = 0 [pid 15642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15642] write(3, "1000", 4) = 4 [pid 15642] close(3) = 0 [pid 15642] memfd_create("syzkaller", 0) = 3 [pid 15642] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15642] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15642] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15642] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15642] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15642] ioctl(4, LOOP_CLR_FD) = 0 [pid 15642] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15642] close(4) = 0 [pid 15642] close(3) = 0 [pid 15642] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15642] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15642] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15642] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15642] open("./bus", O_RDONLY) = 3 [pid 15642] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15642] exit_group(0) = ? [pid 15642] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15642, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15643 ./strace-static-x86_64: Process 15643 attached [pid 15643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15643] setpgid(0, 0) = 0 [pid 15643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15643] write(3, "1000", 4) = 4 [pid 15643] close(3) = 0 [pid 15643] memfd_create("syzkaller", 0) = 3 [pid 15643] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15643] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15643] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15643] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15643] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15643] ioctl(4, LOOP_CLR_FD) = 0 [pid 15643] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15643] close(4) = 0 [pid 15643] close(3) = 0 [pid 15643] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15643] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15643] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15643] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15643] open("./bus", O_RDONLY) = 3 [pid 15643] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15643] exit_group(0) = ? [pid 15643] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15643, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15644 ./strace-static-x86_64: Process 15644 attached [pid 15644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15644] setpgid(0, 0) = 0 [pid 15644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15644] write(3, "1000", 4) = 4 [pid 15644] close(3) = 0 [pid 15644] memfd_create("syzkaller", 0) = 3 [pid 15644] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15644] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15644] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15644] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15644] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15644] ioctl(4, LOOP_CLR_FD) = 0 [pid 15644] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15644] close(4) = 0 [pid 15644] close(3) = 0 [pid 15644] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15644] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15644] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15644] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15644] open("./bus", O_RDONLY) = 3 [pid 15644] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15644] exit_group(0) = ? [pid 15644] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15644, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15645 ./strace-static-x86_64: Process 15645 attached [pid 15645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15645] setpgid(0, 0) = 0 [pid 15645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15645] write(3, "1000", 4) = 4 [pid 15645] close(3) = 0 [pid 15645] memfd_create("syzkaller", 0) = 3 [pid 15645] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15645] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15645] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15645] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15645] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15645] ioctl(4, LOOP_CLR_FD) = 0 [pid 15645] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15645] close(4) = 0 [pid 15645] close(3) = 0 [pid 15645] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15645] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15645] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15645] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15645] open("./bus", O_RDONLY) = 3 [pid 15645] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15645] exit_group(0) = ? [pid 15645] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15645, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15646 ./strace-static-x86_64: Process 15646 attached [pid 15646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15646] setpgid(0, 0) = 0 [pid 15646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15646] write(3, "1000", 4) = 4 [pid 15646] close(3) = 0 [pid 15646] memfd_create("syzkaller", 0) = 3 [pid 15646] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15646] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15646] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15646] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15646] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15646] ioctl(4, LOOP_CLR_FD) = 0 [pid 15646] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15646] close(4) = 0 [pid 15646] close(3) = 0 [pid 15646] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15646] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15646] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15646] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15646] open("./bus", O_RDONLY) = 3 [pid 15646] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15646] exit_group(0) = ? [pid 15646] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15646, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15647 ./strace-static-x86_64: Process 15647 attached [pid 15647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15647] setpgid(0, 0) = 0 [pid 15647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15647] write(3, "1000", 4) = 4 [pid 15647] close(3) = 0 [pid 15647] memfd_create("syzkaller", 0) = 3 [pid 15647] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15647] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15647] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15647] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15647] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15647] ioctl(4, LOOP_CLR_FD) = 0 [pid 15647] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15647] close(4) = 0 [pid 15647] close(3) = 0 [pid 15647] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15647] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15647] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15647] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15647] open("./bus", O_RDONLY) = 3 [pid 15647] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15647] exit_group(0) = ? [pid 15647] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15647, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15648 attached , child_tidptr=0x5555575235d0) = 15648 [pid 15648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15648] setpgid(0, 0) = 0 [pid 15648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15648] write(3, "1000", 4) = 4 [pid 15648] close(3) = 0 [pid 15648] memfd_create("syzkaller", 0) = 3 [pid 15648] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15648] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15648] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15648] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15648] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15648] ioctl(4, LOOP_CLR_FD) = 0 [pid 15648] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15648] close(4) = 0 [pid 15648] close(3) = 0 [pid 15648] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15648] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15648] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15648] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15648] open("./bus", O_RDONLY) = 3 [pid 15648] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15648] exit_group(0) = ? [pid 15648] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15648, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15649 ./strace-static-x86_64: Process 15649 attached [pid 15649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15649] setpgid(0, 0) = 0 [pid 15649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15649] write(3, "1000", 4) = 4 [pid 15649] close(3) = 0 [pid 15649] memfd_create("syzkaller", 0) = 3 [pid 15649] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15649] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15649] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15649] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15649] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15649] ioctl(4, LOOP_CLR_FD) = 0 [pid 15649] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15649] close(4) = 0 [pid 15649] close(3) = 0 [pid 15649] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15649] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15649] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15649] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15649] open("./bus", O_RDONLY) = 3 [pid 15649] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15649] exit_group(0) = ? [pid 15649] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15649, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15650 attached , child_tidptr=0x5555575235d0) = 15650 [pid 15650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15650] setpgid(0, 0) = 0 [pid 15650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15650] write(3, "1000", 4) = 4 [pid 15650] close(3) = 0 [pid 15650] memfd_create("syzkaller", 0) = 3 [pid 15650] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15650] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15650] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15650] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15650] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15650] ioctl(4, LOOP_CLR_FD) = 0 [pid 15650] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15650] close(4) = 0 [pid 15650] close(3) = 0 [pid 15650] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15650] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15650] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15650] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15650] open("./bus", O_RDONLY) = 3 [pid 15650] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15650] exit_group(0) = ? [pid 15650] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15650, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15651 attached , child_tidptr=0x5555575235d0) = 15651 [pid 15651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15651] setpgid(0, 0) = 0 [pid 15651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15651] write(3, "1000", 4) = 4 [pid 15651] close(3) = 0 [pid 15651] memfd_create("syzkaller", 0) = 3 [pid 15651] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15651] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15651] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15651] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15651] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15651] ioctl(4, LOOP_CLR_FD) = 0 [pid 15651] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15651] close(4) = 0 [pid 15651] close(3) = 0 [pid 15651] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15651] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15651] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15651] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15651] open("./bus", O_RDONLY) = 3 [pid 15651] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15651] exit_group(0) = ? [pid 15651] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15651, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15652 ./strace-static-x86_64: Process 15652 attached [pid 15652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15652] setpgid(0, 0) = 0 [pid 15652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15652] write(3, "1000", 4) = 4 [pid 15652] close(3) = 0 [pid 15652] memfd_create("syzkaller", 0) = 3 [pid 15652] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15652] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15652] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15652] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15652] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15652] ioctl(4, LOOP_CLR_FD) = 0 [pid 15652] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15652] close(4) = 0 [pid 15652] close(3) = 0 [pid 15652] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15652] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15652] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15652] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15652] open("./bus", O_RDONLY) = 3 [pid 15652] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15652] exit_group(0) = ? [pid 15652] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15652, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15653 attached , child_tidptr=0x5555575235d0) = 15653 [pid 15653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15653] setpgid(0, 0) = 0 [pid 15653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15653] write(3, "1000", 4) = 4 [pid 15653] close(3) = 0 [pid 15653] memfd_create("syzkaller", 0) = 3 [pid 15653] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15653] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15653] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15653] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15653] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15653] ioctl(4, LOOP_CLR_FD) = 0 [pid 15653] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15653] close(4) = 0 [pid 15653] close(3) = 0 [pid 15653] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15653] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15653] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15653] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15653] open("./bus", O_RDONLY) = 3 [pid 15653] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15653] exit_group(0) = ? [pid 15653] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15653, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15654 ./strace-static-x86_64: Process 15654 attached [pid 15654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15654] setpgid(0, 0) = 0 [pid 15654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15654] write(3, "1000", 4) = 4 [pid 15654] close(3) = 0 [pid 15654] memfd_create("syzkaller", 0) = 3 [pid 15654] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15654] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15654] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15654] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15654] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15654] ioctl(4, LOOP_CLR_FD) = 0 [pid 15654] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15654] close(4) = 0 [pid 15654] close(3) = 0 [pid 15654] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15654] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15654] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15654] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15654] open("./bus", O_RDONLY) = 3 [pid 15654] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15654] exit_group(0) = ? [pid 15654] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15654, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15655 attached , child_tidptr=0x5555575235d0) = 15655 [pid 15655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15655] setpgid(0, 0) = 0 [pid 15655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15655] write(3, "1000", 4) = 4 [pid 15655] close(3) = 0 [pid 15655] memfd_create("syzkaller", 0) = 3 [pid 15655] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15655] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15655] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15655] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15655] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15655] ioctl(4, LOOP_CLR_FD) = 0 [pid 15655] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15655] close(4) = 0 [pid 15655] close(3) = 0 [pid 15655] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15655] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15655] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15655] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15655] open("./bus", O_RDONLY) = 3 [pid 15655] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15655] exit_group(0) = ? [pid 15655] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15655, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15656 ./strace-static-x86_64: Process 15656 attached [pid 15656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15656] setpgid(0, 0) = 0 [pid 15656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15656] write(3, "1000", 4) = 4 [pid 15656] close(3) = 0 [pid 15656] memfd_create("syzkaller", 0) = 3 [pid 15656] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15656] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15656] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15656] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15656] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15656] ioctl(4, LOOP_CLR_FD) = 0 [pid 15656] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15656] close(4) = 0 [pid 15656] close(3) = 0 [pid 15656] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15656] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15656] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15656] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15656] open("./bus", O_RDONLY) = 3 [pid 15656] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15656] exit_group(0) = ? [pid 15656] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15656, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15657 attached , child_tidptr=0x5555575235d0) = 15657 [pid 15657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15657] setpgid(0, 0) = 0 [pid 15657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15657] write(3, "1000", 4) = 4 [pid 15657] close(3) = 0 [pid 15657] memfd_create("syzkaller", 0) = 3 [pid 15657] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15657] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15657] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15657] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15657] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15657] ioctl(4, LOOP_CLR_FD) = 0 [pid 15657] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15657] close(4) = 0 [pid 15657] close(3) = 0 [pid 15657] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15657] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15657] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15657] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15657] open("./bus", O_RDONLY) = 3 [pid 15657] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15657] exit_group(0) = ? [pid 15657] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15657, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15658 ./strace-static-x86_64: Process 15658 attached [pid 15658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15658] setpgid(0, 0) = 0 [pid 15658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15658] write(3, "1000", 4) = 4 [pid 15658] close(3) = 0 [pid 15658] memfd_create("syzkaller", 0) = 3 [pid 15658] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15658] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15658] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15658] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15658] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15658] ioctl(4, LOOP_CLR_FD) = 0 [pid 15658] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15658] close(4) = 0 [pid 15658] close(3) = 0 [pid 15658] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15658] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15658] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15658] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15658] open("./bus", O_RDONLY) = 3 [pid 15658] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15658] exit_group(0) = ? [pid 15658] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15658, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15659 attached , child_tidptr=0x5555575235d0) = 15659 [pid 15659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15659] setpgid(0, 0) = 0 [pid 15659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15659] write(3, "1000", 4) = 4 [pid 15659] close(3) = 0 [pid 15659] memfd_create("syzkaller", 0) = 3 [pid 15659] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15659] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15659] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15659] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15659] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15659] ioctl(4, LOOP_CLR_FD) = 0 [pid 15659] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15659] close(4) = 0 [pid 15659] close(3) = 0 [pid 15659] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15659] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15659] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15659] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15659] open("./bus", O_RDONLY) = 3 [pid 15659] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15659] exit_group(0) = ? [pid 15659] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15659, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15660 attached , child_tidptr=0x5555575235d0) = 15660 [pid 15660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15660] setpgid(0, 0) = 0 [pid 15660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15660] write(3, "1000", 4) = 4 [pid 15660] close(3) = 0 [pid 15660] memfd_create("syzkaller", 0) = 3 [pid 15660] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15660] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15660] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15660] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15660] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15660] ioctl(4, LOOP_CLR_FD) = 0 [pid 15660] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15660] close(4) = 0 [pid 15660] close(3) = 0 [pid 15660] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15660] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15660] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15660] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15660] open("./bus", O_RDONLY) = 3 [pid 15660] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15660] exit_group(0) = ? [pid 15660] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15660, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15661 ./strace-static-x86_64: Process 15661 attached [pid 15661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15661] setpgid(0, 0) = 0 [pid 15661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15661] write(3, "1000", 4) = 4 [pid 15661] close(3) = 0 [pid 15661] memfd_create("syzkaller", 0) = 3 [pid 15661] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15661] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15661] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15661] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15661] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15661] ioctl(4, LOOP_CLR_FD) = 0 [pid 15661] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15661] close(4) = 0 [pid 15661] close(3) = 0 [pid 15661] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15661] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15661] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15661] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15661] open("./bus", O_RDONLY) = 3 [pid 15661] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15661] exit_group(0) = ? [pid 15661] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15661, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15662 attached , child_tidptr=0x5555575235d0) = 15662 [pid 15662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15662] setpgid(0, 0) = 0 [pid 15662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15662] write(3, "1000", 4) = 4 [pid 15662] close(3) = 0 [pid 15662] memfd_create("syzkaller", 0) = 3 [pid 15662] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15662] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15662] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15662] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15662] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15662] ioctl(4, LOOP_CLR_FD) = 0 [pid 15662] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15662] close(4) = 0 [pid 15662] close(3) = 0 [pid 15662] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15662] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15662] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15662] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15662] open("./bus", O_RDONLY) = 3 [pid 15662] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15662] exit_group(0) = ? [pid 15662] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15662, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15663 ./strace-static-x86_64: Process 15663 attached [pid 15663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15663] setpgid(0, 0) = 0 [pid 15663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15663] write(3, "1000", 4) = 4 [pid 15663] close(3) = 0 [pid 15663] memfd_create("syzkaller", 0) = 3 [pid 15663] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15663] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15663] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15663] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15663] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15663] ioctl(4, LOOP_CLR_FD) = 0 [pid 15663] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15663] close(4) = 0 [pid 15663] close(3) = 0 [pid 15663] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15663] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15663] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15663] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15663] open("./bus", O_RDONLY) = 3 [pid 15663] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15663] exit_group(0) = ? [pid 15663] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15663, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15664 attached , child_tidptr=0x5555575235d0) = 15664 [pid 15664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15664] setpgid(0, 0) = 0 [pid 15664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15664] write(3, "1000", 4) = 4 [pid 15664] close(3) = 0 [pid 15664] memfd_create("syzkaller", 0) = 3 [pid 15664] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15664] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15664] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15664] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15664] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15664] ioctl(4, LOOP_CLR_FD) = 0 [pid 15664] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15664] close(4) = 0 [pid 15664] close(3) = 0 [pid 15664] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15664] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15664] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15664] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15664] open("./bus", O_RDONLY) = 3 [pid 15664] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15664] exit_group(0) = ? [pid 15664] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15664, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15665 attached , child_tidptr=0x5555575235d0) = 15665 [pid 15665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15665] setpgid(0, 0) = 0 [pid 15665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15665] write(3, "1000", 4) = 4 [pid 15665] close(3) = 0 [pid 15665] memfd_create("syzkaller", 0) = 3 [pid 15665] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15665] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15665] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15665] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15665] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15665] ioctl(4, LOOP_CLR_FD) = 0 [pid 15665] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15665] close(4) = 0 [pid 15665] close(3) = 0 [pid 15665] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15665] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15665] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15665] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15665] open("./bus", O_RDONLY) = 3 [pid 15665] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15665] exit_group(0) = ? [pid 15665] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15665, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15666 attached , child_tidptr=0x5555575235d0) = 15666 [pid 15666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15666] setpgid(0, 0) = 0 [pid 15666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15666] write(3, "1000", 4) = 4 [pid 15666] close(3) = 0 [pid 15666] memfd_create("syzkaller", 0) = 3 [pid 15666] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15666] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15666] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15666] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15666] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15666] ioctl(4, LOOP_CLR_FD) = 0 [pid 15666] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15666] close(4) = 0 [pid 15666] close(3) = 0 [pid 15666] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15666] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15666] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15666] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15666] open("./bus", O_RDONLY) = 3 [pid 15666] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15666] exit_group(0) = ? [pid 15666] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15666, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15667 ./strace-static-x86_64: Process 15667 attached [pid 15667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15667] setpgid(0, 0) = 0 [pid 15667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15667] write(3, "1000", 4) = 4 [pid 15667] close(3) = 0 [pid 15667] memfd_create("syzkaller", 0) = 3 [pid 15667] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15667] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15667] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15667] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15667] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15667] ioctl(4, LOOP_CLR_FD) = 0 [pid 15667] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15667] close(4) = 0 [pid 15667] close(3) = 0 [pid 15667] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15667] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15667] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15667] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15667] open("./bus", O_RDONLY) = 3 [pid 15667] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15667] exit_group(0) = ? [pid 15667] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15667, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15668 ./strace-static-x86_64: Process 15668 attached [pid 15668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15668] setpgid(0, 0) = 0 [pid 15668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15668] write(3, "1000", 4) = 4 [pid 15668] close(3) = 0 [pid 15668] memfd_create("syzkaller", 0) = 3 [pid 15668] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15668] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15668] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15668] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15668] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15668] ioctl(4, LOOP_CLR_FD) = 0 [pid 15668] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15668] close(4) = 0 [pid 15668] close(3) = 0 [pid 15668] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15668] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15668] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15668] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15668] open("./bus", O_RDONLY) = 3 [pid 15668] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15668] exit_group(0) = ? [pid 15668] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15668, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15669 attached , child_tidptr=0x5555575235d0) = 15669 [pid 15669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15669] setpgid(0, 0) = 0 [pid 15669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15669] write(3, "1000", 4) = 4 [pid 15669] close(3) = 0 [pid 15669] memfd_create("syzkaller", 0) = 3 [pid 15669] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15669] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15669] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15669] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15669] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15669] ioctl(4, LOOP_CLR_FD) = 0 [pid 15669] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15669] close(4) = 0 [pid 15669] close(3) = 0 [pid 15669] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15669] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15669] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15669] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15669] open("./bus", O_RDONLY) = 3 [pid 15669] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15669] exit_group(0) = ? [pid 15669] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15669, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15670 attached , child_tidptr=0x5555575235d0) = 15670 [pid 15670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15670] setpgid(0, 0) = 0 [pid 15670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15670] write(3, "1000", 4) = 4 [pid 15670] close(3) = 0 [pid 15670] memfd_create("syzkaller", 0) = 3 [pid 15670] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15670] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15670] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15670] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15670] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15670] ioctl(4, LOOP_CLR_FD) = 0 [pid 15670] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15670] close(4) = 0 [pid 15670] close(3) = 0 [pid 15670] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15670] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15670] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15670] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15670] open("./bus", O_RDONLY) = 3 [pid 15670] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15670] exit_group(0) = ? [pid 15670] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15670, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15671 ./strace-static-x86_64: Process 15671 attached [pid 15671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15671] setpgid(0, 0) = 0 [pid 15671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15671] write(3, "1000", 4) = 4 [pid 15671] close(3) = 0 [pid 15671] memfd_create("syzkaller", 0) = 3 [pid 15671] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15671] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15671] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15671] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15671] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15671] ioctl(4, LOOP_CLR_FD) = 0 [pid 15671] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15671] close(4) = 0 [pid 15671] close(3) = 0 [pid 15671] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15671] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15671] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15671] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15671] open("./bus", O_RDONLY) = 3 [pid 15671] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15671] exit_group(0) = ? [pid 15671] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15671, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15672 attached , child_tidptr=0x5555575235d0) = 15672 [pid 15672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15672] setpgid(0, 0) = 0 [pid 15672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15672] write(3, "1000", 4) = 4 [pid 15672] close(3) = 0 [pid 15672] memfd_create("syzkaller", 0) = 3 [pid 15672] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15672] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15672] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15672] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15672] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15672] ioctl(4, LOOP_CLR_FD) = 0 [pid 15672] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15672] close(4) = 0 [pid 15672] close(3) = 0 [pid 15672] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15672] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15672] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15672] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15672] open("./bus", O_RDONLY) = 3 [pid 15672] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15672] exit_group(0) = ? [pid 15672] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15672, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15673 ./strace-static-x86_64: Process 15673 attached [pid 15673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15673] setpgid(0, 0) = 0 [pid 15673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15673] write(3, "1000", 4) = 4 [pid 15673] close(3) = 0 [pid 15673] memfd_create("syzkaller", 0) = 3 [pid 15673] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15673] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15673] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15673] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15673] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15673] ioctl(4, LOOP_CLR_FD) = 0 [pid 15673] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15673] close(4) = 0 [pid 15673] close(3) = 0 [pid 15673] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15673] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15673] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15673] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15673] open("./bus", O_RDONLY) = 3 [pid 15673] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15673] exit_group(0) = ? [pid 15673] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15673, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15674 attached , child_tidptr=0x5555575235d0) = 15674 [pid 15674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15674] setpgid(0, 0) = 0 [pid 15674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15674] write(3, "1000", 4) = 4 [pid 15674] close(3) = 0 [pid 15674] memfd_create("syzkaller", 0) = 3 [pid 15674] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15674] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15674] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15674] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15674] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15674] ioctl(4, LOOP_CLR_FD) = 0 [pid 15674] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15674] close(4) = 0 [pid 15674] close(3) = 0 [pid 15674] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15674] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15674] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15674] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15674] open("./bus", O_RDONLY) = 3 [pid 15674] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15674] exit_group(0) = ? [pid 15674] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15674, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15675 attached , child_tidptr=0x5555575235d0) = 15675 [pid 15675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15675] setpgid(0, 0) = 0 [pid 15675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15675] write(3, "1000", 4) = 4 [pid 15675] close(3) = 0 [pid 15675] memfd_create("syzkaller", 0) = 3 [pid 15675] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15675] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15675] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15675] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15675] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15675] ioctl(4, LOOP_CLR_FD) = 0 [pid 15675] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15675] close(4) = 0 [pid 15675] close(3) = 0 [pid 15675] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15675] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15675] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15675] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15675] open("./bus", O_RDONLY) = 3 [pid 15675] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15675] exit_group(0) = ? [pid 15675] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15675, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15676 ./strace-static-x86_64: Process 15676 attached [pid 15676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15676] setpgid(0, 0) = 0 [pid 15676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15676] write(3, "1000", 4) = 4 [pid 15676] close(3) = 0 [pid 15676] memfd_create("syzkaller", 0) = 3 [pid 15676] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15676] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15676] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15676] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15676] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15676] ioctl(4, LOOP_CLR_FD) = 0 [pid 15676] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15676] close(4) = 0 [pid 15676] close(3) = 0 [pid 15676] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15676] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15676] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15676] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15676] open("./bus", O_RDONLY) = 3 [pid 15676] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15676] exit_group(0) = ? [pid 15676] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15676, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15677 ./strace-static-x86_64: Process 15677 attached [pid 15677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15677] setpgid(0, 0) = 0 [pid 15677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15677] write(3, "1000", 4) = 4 [pid 15677] close(3) = 0 [pid 15677] memfd_create("syzkaller", 0) = 3 [pid 15677] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15677] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15677] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15677] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15677] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15677] ioctl(4, LOOP_CLR_FD) = 0 [pid 15677] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15677] close(4) = 0 [pid 15677] close(3) = 0 [pid 15677] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15677] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15677] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15677] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15677] open("./bus", O_RDONLY) = 3 [pid 15677] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15677] exit_group(0) = ? [pid 15677] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15677, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15678 attached , child_tidptr=0x5555575235d0) = 15678 [pid 15678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15678] setpgid(0, 0) = 0 [pid 15678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15678] write(3, "1000", 4) = 4 [pid 15678] close(3) = 0 [pid 15678] memfd_create("syzkaller", 0) = 3 [pid 15678] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15678] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15678] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15678] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15678] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15678] ioctl(4, LOOP_CLR_FD) = 0 [pid 15678] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15678] close(4) = 0 [pid 15678] close(3) = 0 [pid 15678] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15678] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15678] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15678] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15678] open("./bus", O_RDONLY) = 3 [pid 15678] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15678] exit_group(0) = ? [pid 15678] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15678, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15679 attached , child_tidptr=0x5555575235d0) = 15679 [pid 15679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15679] setpgid(0, 0) = 0 [pid 15679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15679] write(3, "1000", 4) = 4 [pid 15679] close(3) = 0 [pid 15679] memfd_create("syzkaller", 0) = 3 [pid 15679] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15679] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15679] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15679] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15679] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15679] ioctl(4, LOOP_CLR_FD) = 0 [pid 15679] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15679] close(4) = 0 [pid 15679] close(3) = 0 [pid 15679] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15679] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15679] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15679] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15679] open("./bus", O_RDONLY) = 3 [pid 15679] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15679] exit_group(0) = ? [pid 15679] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15679, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15680 ./strace-static-x86_64: Process 15680 attached [pid 15680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15680] setpgid(0, 0) = 0 [pid 15680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15680] write(3, "1000", 4) = 4 [pid 15680] close(3) = 0 [pid 15680] memfd_create("syzkaller", 0) = 3 [pid 15680] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15680] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15680] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15680] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15680] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15680] ioctl(4, LOOP_CLR_FD) = 0 [pid 15680] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15680] close(4) = 0 [pid 15680] close(3) = 0 [pid 15680] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15680] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15680] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15680] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15680] open("./bus", O_RDONLY) = 3 [pid 15680] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15680] exit_group(0) = ? [pid 15680] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15680, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15681 attached , child_tidptr=0x5555575235d0) = 15681 [pid 15681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15681] setpgid(0, 0) = 0 [pid 15681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15681] write(3, "1000", 4) = 4 [pid 15681] close(3) = 0 [pid 15681] memfd_create("syzkaller", 0) = 3 [pid 15681] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15681] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15681] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15681] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15681] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15681] ioctl(4, LOOP_CLR_FD) = 0 [pid 15681] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15681] close(4) = 0 [pid 15681] close(3) = 0 [pid 15681] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15681] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15681] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15681] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15681] open("./bus", O_RDONLY) = 3 [pid 15681] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15681] exit_group(0) = ? [pid 15681] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15681, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15682 attached , child_tidptr=0x5555575235d0) = 15682 [pid 15682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15682] setpgid(0, 0) = 0 [pid 15682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15682] write(3, "1000", 4) = 4 [pid 15682] close(3) = 0 [pid 15682] memfd_create("syzkaller", 0) = 3 [pid 15682] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15682] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15682] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15682] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15682] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15682] ioctl(4, LOOP_CLR_FD) = 0 [pid 15682] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15682] close(4) = 0 [pid 15682] close(3) = 0 [pid 15682] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15682] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15682] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15682] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15682] open("./bus", O_RDONLY) = 3 [pid 15682] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15682] exit_group(0) = ? [pid 15682] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15682, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15683 ./strace-static-x86_64: Process 15683 attached [pid 15683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15683] setpgid(0, 0) = 0 [pid 15683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15683] write(3, "1000", 4) = 4 [pid 15683] close(3) = 0 [pid 15683] memfd_create("syzkaller", 0) = 3 [pid 15683] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15683] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15683] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15683] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15683] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15683] ioctl(4, LOOP_CLR_FD) = 0 [pid 15683] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15683] close(4) = 0 [pid 15683] close(3) = 0 [pid 15683] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15683] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15683] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15683] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15683] open("./bus", O_RDONLY) = 3 [pid 15683] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15683] exit_group(0) = ? [pid 15683] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15683, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15684 attached , child_tidptr=0x5555575235d0) = 15684 [pid 15684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15684] setpgid(0, 0) = 0 [pid 15684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15684] write(3, "1000", 4) = 4 [pid 15684] close(3) = 0 [pid 15684] memfd_create("syzkaller", 0) = 3 [pid 15684] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15684] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15684] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15684] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15684] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15684] ioctl(4, LOOP_CLR_FD) = 0 [pid 15684] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15684] close(4) = 0 [pid 15684] close(3) = 0 [pid 15684] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15684] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15684] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15684] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15684] open("./bus", O_RDONLY) = 3 [pid 15684] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15684] exit_group(0) = ? [pid 15684] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15684, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15685 ./strace-static-x86_64: Process 15685 attached [pid 15685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15685] setpgid(0, 0) = 0 [pid 15685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15685] write(3, "1000", 4) = 4 [pid 15685] close(3) = 0 [pid 15685] memfd_create("syzkaller", 0) = 3 [pid 15685] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15685] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15685] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15685] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15685] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15685] ioctl(4, LOOP_CLR_FD) = 0 [pid 15685] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15685] close(4) = 0 [pid 15685] close(3) = 0 [pid 15685] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15685] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15685] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15685] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15685] open("./bus", O_RDONLY) = 3 [pid 15685] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15685] exit_group(0) = ? [pid 15685] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15685, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15686 attached , child_tidptr=0x5555575235d0) = 15686 [pid 15686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15686] setpgid(0, 0) = 0 [pid 15686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15686] write(3, "1000", 4) = 4 [pid 15686] close(3) = 0 [pid 15686] memfd_create("syzkaller", 0) = 3 [pid 15686] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15686] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15686] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15686] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15686] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15686] ioctl(4, LOOP_CLR_FD) = 0 [pid 15686] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15686] close(4) = 0 [pid 15686] close(3) = 0 [pid 15686] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15686] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15686] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15686] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15686] open("./bus", O_RDONLY) = 3 [pid 15686] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15686] exit_group(0) = ? [pid 15686] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15686, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15687 ./strace-static-x86_64: Process 15687 attached [pid 15687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15687] setpgid(0, 0) = 0 [pid 15687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15687] write(3, "1000", 4) = 4 [pid 15687] close(3) = 0 [pid 15687] memfd_create("syzkaller", 0) = 3 [pid 15687] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15687] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15687] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15687] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15687] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15687] ioctl(4, LOOP_CLR_FD) = 0 [pid 15687] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15687] close(4) = 0 [pid 15687] close(3) = 0 [pid 15687] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15687] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15687] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15687] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15687] open("./bus", O_RDONLY) = 3 [pid 15687] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15687] exit_group(0) = ? [pid 15687] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15687, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15688 attached , child_tidptr=0x5555575235d0) = 15688 [pid 15688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15688] setpgid(0, 0) = 0 [pid 15688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15688] write(3, "1000", 4) = 4 [pid 15688] close(3) = 0 [pid 15688] memfd_create("syzkaller", 0) = 3 [pid 15688] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15688] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15688] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15688] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15688] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15688] ioctl(4, LOOP_CLR_FD) = 0 [pid 15688] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15688] close(4) = 0 [pid 15688] close(3) = 0 [pid 15688] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15688] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15688] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15688] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15688] open("./bus", O_RDONLY) = 3 [pid 15688] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15688] exit_group(0) = ? [pid 15688] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15688, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15689 ./strace-static-x86_64: Process 15689 attached [pid 15689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15689] setpgid(0, 0) = 0 [pid 15689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15689] write(3, "1000", 4) = 4 [pid 15689] close(3) = 0 [pid 15689] memfd_create("syzkaller", 0) = 3 [pid 15689] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15689] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15689] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15689] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15689] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15689] ioctl(4, LOOP_CLR_FD) = 0 [pid 15689] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15689] close(4) = 0 [pid 15689] close(3) = 0 [pid 15689] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15689] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15689] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15689] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15689] open("./bus", O_RDONLY) = 3 [pid 15689] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15689] exit_group(0) = ? [pid 15689] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15689, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15690 attached , child_tidptr=0x5555575235d0) = 15690 [pid 15690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15690] setpgid(0, 0) = 0 [pid 15690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15690] write(3, "1000", 4) = 4 [pid 15690] close(3) = 0 [pid 15690] memfd_create("syzkaller", 0) = 3 [pid 15690] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15690] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15690] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15690] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15690] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15690] ioctl(4, LOOP_CLR_FD) = 0 [pid 15690] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15690] close(4) = 0 [pid 15690] close(3) = 0 [pid 15690] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15690] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15690] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15690] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15690] open("./bus", O_RDONLY) = 3 [pid 15690] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15690] exit_group(0) = ? [pid 15690] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15690, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15691 attached , child_tidptr=0x5555575235d0) = 15691 [pid 15691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15691] setpgid(0, 0) = 0 [pid 15691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15691] write(3, "1000", 4) = 4 [pid 15691] close(3) = 0 [pid 15691] memfd_create("syzkaller", 0) = 3 [pid 15691] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15691] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15691] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15691] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15691] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15691] ioctl(4, LOOP_CLR_FD) = 0 [pid 15691] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15691] close(4) = 0 [pid 15691] close(3) = 0 [pid 15691] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15691] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15691] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15691] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15691] open("./bus", O_RDONLY) = 3 [pid 15691] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15691] exit_group(0) = ? [pid 15691] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15691, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15692 attached , child_tidptr=0x5555575235d0) = 15692 [pid 15692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15692] setpgid(0, 0) = 0 [pid 15692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15692] write(3, "1000", 4) = 4 [pid 15692] close(3) = 0 [pid 15692] memfd_create("syzkaller", 0) = 3 [pid 15692] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15692] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15692] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15692] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15692] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15692] ioctl(4, LOOP_CLR_FD) = 0 [pid 15692] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15692] close(4) = 0 [pid 15692] close(3) = 0 [pid 15692] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15692] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15692] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15692] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15692] open("./bus", O_RDONLY) = 3 [pid 15692] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15692] exit_group(0) = ? [pid 15692] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15692, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15693 attached , child_tidptr=0x5555575235d0) = 15693 [pid 15693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15693] setpgid(0, 0) = 0 [pid 15693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15693] write(3, "1000", 4) = 4 [pid 15693] close(3) = 0 [pid 15693] memfd_create("syzkaller", 0) = 3 [pid 15693] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15693] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15693] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15693] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15693] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15693] ioctl(4, LOOP_CLR_FD) = 0 [pid 15693] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15693] close(4) = 0 [pid 15693] close(3) = 0 [pid 15693] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15693] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15693] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15693] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15693] open("./bus", O_RDONLY) = 3 [pid 15693] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15693] exit_group(0) = ? [pid 15693] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15693, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15694 attached , child_tidptr=0x5555575235d0) = 15694 [pid 15694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15694] setpgid(0, 0) = 0 [pid 15694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15694] write(3, "1000", 4) = 4 [pid 15694] close(3) = 0 [pid 15694] memfd_create("syzkaller", 0) = 3 [pid 15694] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15694] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15694] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15694] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15694] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15694] ioctl(4, LOOP_CLR_FD) = 0 [pid 15694] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15694] close(4) = 0 [pid 15694] close(3) = 0 [pid 15694] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15694] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15694] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15694] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15694] open("./bus", O_RDONLY) = 3 [pid 15694] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15694] exit_group(0) = ? [pid 15694] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15694, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15695 attached , child_tidptr=0x5555575235d0) = 15695 [pid 15695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15695] setpgid(0, 0) = 0 [pid 15695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15695] write(3, "1000", 4) = 4 [pid 15695] close(3) = 0 [pid 15695] memfd_create("syzkaller", 0) = 3 [pid 15695] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15695] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15695] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15695] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15695] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15695] ioctl(4, LOOP_CLR_FD) = 0 [pid 15695] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15695] close(4) = 0 [pid 15695] close(3) = 0 [pid 15695] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15695] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15695] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15695] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15695] open("./bus", O_RDONLY) = 3 [pid 15695] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15695] exit_group(0) = ? [pid 15695] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15695, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15696 ./strace-static-x86_64: Process 15696 attached [pid 15696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15696] setpgid(0, 0) = 0 [pid 15696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15696] write(3, "1000", 4) = 4 [pid 15696] close(3) = 0 [pid 15696] memfd_create("syzkaller", 0) = 3 [pid 15696] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15696] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15696] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15696] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15696] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15696] ioctl(4, LOOP_CLR_FD) = 0 [pid 15696] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15696] close(4) = 0 [pid 15696] close(3) = 0 [pid 15696] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15696] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15696] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15696] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15696] open("./bus", O_RDONLY) = 3 [pid 15696] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15696] exit_group(0) = ? [pid 15696] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15696, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15697 ./strace-static-x86_64: Process 15697 attached [pid 15697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15697] setpgid(0, 0) = 0 [pid 15697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15697] write(3, "1000", 4) = 4 [pid 15697] close(3) = 0 [pid 15697] memfd_create("syzkaller", 0) = 3 [pid 15697] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15697] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15697] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15697] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15697] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15697] ioctl(4, LOOP_CLR_FD) = 0 [pid 15697] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15697] close(4) = 0 [pid 15697] close(3) = 0 [pid 15697] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15697] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15697] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15697] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15697] open("./bus", O_RDONLY) = 3 [pid 15697] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15697] exit_group(0) = ? [pid 15697] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15697, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15698 ./strace-static-x86_64: Process 15698 attached [pid 15698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15698] setpgid(0, 0) = 0 [pid 15698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15698] write(3, "1000", 4) = 4 [pid 15698] close(3) = 0 [pid 15698] memfd_create("syzkaller", 0) = 3 [pid 15698] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15698] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15698] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15698] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15698] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15698] ioctl(4, LOOP_CLR_FD) = 0 [pid 15698] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15698] close(4) = 0 [pid 15698] close(3) = 0 [pid 15698] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15698] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15698] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15698] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15698] open("./bus", O_RDONLY) = 3 [pid 15698] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15698] exit_group(0) = ? [pid 15698] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15698, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15699 attached , child_tidptr=0x5555575235d0) = 15699 [pid 15699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15699] setpgid(0, 0) = 0 [pid 15699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15699] write(3, "1000", 4) = 4 [pid 15699] close(3) = 0 [pid 15699] memfd_create("syzkaller", 0) = 3 [pid 15699] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15699] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15699] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15699] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15699] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15699] ioctl(4, LOOP_CLR_FD) = 0 [pid 15699] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15699] close(4) = 0 [pid 15699] close(3) = 0 [pid 15699] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15699] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15699] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15699] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15699] open("./bus", O_RDONLY) = 3 [pid 15699] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15699] exit_group(0) = ? [pid 15699] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15699, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15700 attached , child_tidptr=0x5555575235d0) = 15700 [pid 15700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15700] setpgid(0, 0) = 0 [pid 15700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15700] write(3, "1000", 4) = 4 [pid 15700] close(3) = 0 [pid 15700] memfd_create("syzkaller", 0) = 3 [pid 15700] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15700] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15700] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15700] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15700] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15700] ioctl(4, LOOP_CLR_FD) = 0 [pid 15700] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15700] close(4) = 0 [pid 15700] close(3) = 0 [pid 15700] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15700] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15700] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15700] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15700] open("./bus", O_RDONLY) = 3 [pid 15700] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15700] exit_group(0) = ? [pid 15700] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15700, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15701 attached , child_tidptr=0x5555575235d0) = 15701 [pid 15701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15701] setpgid(0, 0) = 0 [pid 15701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15701] write(3, "1000", 4) = 4 [pid 15701] close(3) = 0 [pid 15701] memfd_create("syzkaller", 0) = 3 [pid 15701] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15701] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15701] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15701] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15701] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15701] ioctl(4, LOOP_CLR_FD) = 0 [pid 15701] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15701] close(4) = 0 [pid 15701] close(3) = 0 [pid 15701] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15701] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15701] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15701] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15701] open("./bus", O_RDONLY) = 3 [pid 15701] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15701] exit_group(0) = ? [pid 15701] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15701, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15702 ./strace-static-x86_64: Process 15702 attached [pid 15702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15702] setpgid(0, 0) = 0 [pid 15702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15702] write(3, "1000", 4) = 4 [pid 15702] close(3) = 0 [pid 15702] memfd_create("syzkaller", 0) = 3 [pid 15702] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15702] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15702] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15702] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15702] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15702] ioctl(4, LOOP_CLR_FD) = 0 [pid 15702] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15702] close(4) = 0 [pid 15702] close(3) = 0 [pid 15702] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15702] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15702] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15702] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15702] open("./bus", O_RDONLY) = 3 [pid 15702] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15702] exit_group(0) = ? [pid 15702] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15702, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15703 attached , child_tidptr=0x5555575235d0) = 15703 [pid 15703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15703] setpgid(0, 0) = 0 [pid 15703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15703] write(3, "1000", 4) = 4 [pid 15703] close(3) = 0 [pid 15703] memfd_create("syzkaller", 0) = 3 [pid 15703] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15703] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15703] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15703] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15703] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15703] ioctl(4, LOOP_CLR_FD) = 0 [pid 15703] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15703] close(4) = 0 [pid 15703] close(3) = 0 [pid 15703] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15703] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15703] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15703] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15703] open("./bus", O_RDONLY) = 3 [pid 15703] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15703] exit_group(0) = ? [pid 15703] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15703, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15704 attached , child_tidptr=0x5555575235d0) = 15704 [pid 15704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15704] setpgid(0, 0) = 0 [pid 15704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15704] write(3, "1000", 4) = 4 [pid 15704] close(3) = 0 [pid 15704] memfd_create("syzkaller", 0) = 3 [pid 15704] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15704] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15704] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15704] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15704] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15704] ioctl(4, LOOP_CLR_FD) = 0 [pid 15704] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15704] close(4) = 0 [pid 15704] close(3) = 0 [pid 15704] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15704] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15704] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15704] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15704] open("./bus", O_RDONLY) = 3 [pid 15704] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15704] exit_group(0) = ? [pid 15704] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15704, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15705 attached , child_tidptr=0x5555575235d0) = 15705 [pid 15705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15705] setpgid(0, 0) = 0 [pid 15705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15705] write(3, "1000", 4) = 4 [pid 15705] close(3) = 0 [pid 15705] memfd_create("syzkaller", 0) = 3 [pid 15705] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15705] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15705] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15705] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15705] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15705] ioctl(4, LOOP_CLR_FD) = 0 [pid 15705] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15705] close(4) = 0 [pid 15705] close(3) = 0 [pid 15705] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15705] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15705] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15705] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15705] open("./bus", O_RDONLY) = 3 [pid 15705] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15705] exit_group(0) = ? [pid 15705] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15705, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15706 ./strace-static-x86_64: Process 15706 attached [pid 15706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15706] setpgid(0, 0) = 0 [pid 15706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15706] write(3, "1000", 4) = 4 [pid 15706] close(3) = 0 [pid 15706] memfd_create("syzkaller", 0) = 3 [pid 15706] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15706] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15706] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15706] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15706] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15706] ioctl(4, LOOP_CLR_FD) = 0 [pid 15706] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15706] close(4) = 0 [pid 15706] close(3) = 0 [pid 15706] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15706] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15706] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15706] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15706] open("./bus", O_RDONLY) = 3 [pid 15706] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15706] exit_group(0) = ? [pid 15706] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15706, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15707 ./strace-static-x86_64: Process 15707 attached [pid 15707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15707] setpgid(0, 0) = 0 [pid 15707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15707] write(3, "1000", 4) = 4 [pid 15707] close(3) = 0 [pid 15707] memfd_create("syzkaller", 0) = 3 [pid 15707] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15707] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15707] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15707] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15707] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15707] ioctl(4, LOOP_CLR_FD) = 0 [pid 15707] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15707] close(4) = 0 [pid 15707] close(3) = 0 [pid 15707] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15707] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15707] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15707] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15707] open("./bus", O_RDONLY) = 3 [pid 15707] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15707] exit_group(0) = ? [pid 15707] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15707, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15708 attached , child_tidptr=0x5555575235d0) = 15708 [pid 15708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15708] setpgid(0, 0) = 0 [pid 15708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15708] write(3, "1000", 4) = 4 [pid 15708] close(3) = 0 [pid 15708] memfd_create("syzkaller", 0) = 3 [pid 15708] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15708] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15708] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15708] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15708] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15708] ioctl(4, LOOP_CLR_FD) = 0 [pid 15708] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15708] close(4) = 0 [pid 15708] close(3) = 0 [pid 15708] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15708] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15708] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15708] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15708] open("./bus", O_RDONLY) = 3 [pid 15708] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15708] exit_group(0) = ? [pid 15708] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15708, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15709 attached , child_tidptr=0x5555575235d0) = 15709 [pid 15709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15709] setpgid(0, 0) = 0 [pid 15709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15709] write(3, "1000", 4) = 4 [pid 15709] close(3) = 0 [pid 15709] memfd_create("syzkaller", 0) = 3 [pid 15709] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15709] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15709] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15709] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15709] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15709] ioctl(4, LOOP_CLR_FD) = 0 [pid 15709] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15709] close(4) = 0 [pid 15709] close(3) = 0 [pid 15709] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15709] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15709] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15709] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15709] open("./bus", O_RDONLY) = 3 [pid 15709] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15709] exit_group(0) = ? [pid 15709] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15709, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15710 attached , child_tidptr=0x5555575235d0) = 15710 [pid 15710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15710] setpgid(0, 0) = 0 [pid 15710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15710] write(3, "1000", 4) = 4 [pid 15710] close(3) = 0 [pid 15710] memfd_create("syzkaller", 0) = 3 [pid 15710] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15710] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15710] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15710] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15710] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15710] ioctl(4, LOOP_CLR_FD) = 0 [pid 15710] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15710] close(4) = 0 [pid 15710] close(3) = 0 [pid 15710] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15710] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15710] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15710] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15710] open("./bus", O_RDONLY) = 3 [pid 15710] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15710] exit_group(0) = ? [pid 15710] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15710, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15711 ./strace-static-x86_64: Process 15711 attached [pid 15711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15711] setpgid(0, 0) = 0 [pid 15711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15711] write(3, "1000", 4) = 4 [pid 15711] close(3) = 0 [pid 15711] memfd_create("syzkaller", 0) = 3 [pid 15711] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15711] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15711] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15711] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15711] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15711] ioctl(4, LOOP_CLR_FD) = 0 [pid 15711] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15711] close(4) = 0 [pid 15711] close(3) = 0 [pid 15711] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15711] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15711] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15711] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15711] open("./bus", O_RDONLY) = 3 [pid 15711] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15711] exit_group(0) = ? [pid 15711] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15711, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15712 attached , child_tidptr=0x5555575235d0) = 15712 [pid 15712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15712] setpgid(0, 0) = 0 [pid 15712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15712] write(3, "1000", 4) = 4 [pid 15712] close(3) = 0 [pid 15712] memfd_create("syzkaller", 0) = 3 [pid 15712] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15712] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15712] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15712] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15712] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15712] ioctl(4, LOOP_CLR_FD) = 0 [pid 15712] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15712] close(4) = 0 [pid 15712] close(3) = 0 [pid 15712] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15712] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15712] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15712] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15712] open("./bus", O_RDONLY) = 3 [pid 15712] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15712] exit_group(0) = ? [pid 15712] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15712, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15713 ./strace-static-x86_64: Process 15713 attached [pid 15713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15713] setpgid(0, 0) = 0 [pid 15713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15713] write(3, "1000", 4) = 4 [pid 15713] close(3) = 0 [pid 15713] memfd_create("syzkaller", 0) = 3 [pid 15713] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15713] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15713] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15713] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15713] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15713] ioctl(4, LOOP_CLR_FD) = 0 [pid 15713] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15713] close(4) = 0 [pid 15713] close(3) = 0 [pid 15713] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15713] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15713] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15713] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15713] open("./bus", O_RDONLY) = 3 [pid 15713] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15713] exit_group(0) = ? [pid 15713] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15713, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15714 attached , child_tidptr=0x5555575235d0) = 15714 [pid 15714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15714] setpgid(0, 0) = 0 [pid 15714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15714] write(3, "1000", 4) = 4 [pid 15714] close(3) = 0 [pid 15714] memfd_create("syzkaller", 0) = 3 [pid 15714] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15714] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15714] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15714] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15714] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15714] ioctl(4, LOOP_CLR_FD) = 0 [pid 15714] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15714] close(4) = 0 [pid 15714] close(3) = 0 [pid 15714] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15714] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15714] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15714] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15714] open("./bus", O_RDONLY) = 3 [pid 15714] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15714] exit_group(0) = ? [pid 15714] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15714, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15715 attached , child_tidptr=0x5555575235d0) = 15715 [pid 15715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15715] setpgid(0, 0) = 0 [pid 15715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15715] write(3, "1000", 4) = 4 [pid 15715] close(3) = 0 [pid 15715] memfd_create("syzkaller", 0) = 3 [pid 15715] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15715] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15715] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15715] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15715] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15715] ioctl(4, LOOP_CLR_FD) = 0 [pid 15715] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15715] close(4) = 0 [pid 15715] close(3) = 0 [pid 15715] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15715] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15715] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15715] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15715] open("./bus", O_RDONLY) = 3 [pid 15715] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15715] exit_group(0) = ? [pid 15715] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15715, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15716 attached , child_tidptr=0x5555575235d0) = 15716 [pid 15716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15716] setpgid(0, 0) = 0 [pid 15716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15716] write(3, "1000", 4) = 4 [pid 15716] close(3) = 0 [pid 15716] memfd_create("syzkaller", 0) = 3 [pid 15716] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15716] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15716] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15716] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15716] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15716] ioctl(4, LOOP_CLR_FD) = 0 [pid 15716] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15716] close(4) = 0 [pid 15716] close(3) = 0 [pid 15716] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15716] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15716] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15716] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15716] open("./bus", O_RDONLY) = 3 [pid 15716] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15716] exit_group(0) = ? [pid 15716] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15716, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15717 attached , child_tidptr=0x5555575235d0) = 15717 [pid 15717] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15717] setpgid(0, 0) = 0 [pid 15717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15717] write(3, "1000", 4) = 4 [pid 15717] close(3) = 0 [pid 15717] memfd_create("syzkaller", 0) = 3 [pid 15717] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15717] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15717] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15717] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15717] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15717] ioctl(4, LOOP_CLR_FD) = 0 [pid 15717] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15717] close(4) = 0 [pid 15717] close(3) = 0 [pid 15717] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15717] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15717] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15717] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15717] open("./bus", O_RDONLY) = 3 [pid 15717] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15717] exit_group(0) = ? [pid 15717] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15717, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15718 attached , child_tidptr=0x5555575235d0) = 15718 [pid 15718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15718] setpgid(0, 0) = 0 [pid 15718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15718] write(3, "1000", 4) = 4 [pid 15718] close(3) = 0 [pid 15718] memfd_create("syzkaller", 0) = 3 [pid 15718] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15718] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15718] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15718] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15718] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15718] ioctl(4, LOOP_CLR_FD) = 0 [pid 15718] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15718] close(4) = 0 [pid 15718] close(3) = 0 [pid 15718] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15718] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15718] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15718] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15718] open("./bus", O_RDONLY) = 3 [pid 15718] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15718] exit_group(0) = ? [pid 15718] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15718, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15719 attached , child_tidptr=0x5555575235d0) = 15719 [pid 15719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15719] setpgid(0, 0) = 0 [pid 15719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15719] write(3, "1000", 4) = 4 [pid 15719] close(3) = 0 [pid 15719] memfd_create("syzkaller", 0) = 3 [pid 15719] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15719] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15719] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15719] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15719] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15719] ioctl(4, LOOP_CLR_FD) = 0 [pid 15719] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15719] close(4) = 0 [pid 15719] close(3) = 0 [pid 15719] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15719] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15719] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15719] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15719] open("./bus", O_RDONLY) = 3 [pid 15719] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15719] exit_group(0) = ? [pid 15719] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15719, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15720 ./strace-static-x86_64: Process 15720 attached [pid 15720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15720] setpgid(0, 0) = 0 [pid 15720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15720] write(3, "1000", 4) = 4 [pid 15720] close(3) = 0 [pid 15720] memfd_create("syzkaller", 0) = 3 [pid 15720] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15720] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15720] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15720] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15720] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15720] ioctl(4, LOOP_CLR_FD) = 0 [pid 15720] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15720] close(4) = 0 [pid 15720] close(3) = 0 [pid 15720] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15720] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15720] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15720] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15720] open("./bus", O_RDONLY) = 3 [pid 15720] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15720] exit_group(0) = ? [pid 15720] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15720, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15721 attached , child_tidptr=0x5555575235d0) = 15721 [pid 15721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15721] setpgid(0, 0) = 0 [pid 15721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15721] write(3, "1000", 4) = 4 [pid 15721] close(3) = 0 [pid 15721] memfd_create("syzkaller", 0) = 3 [pid 15721] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15721] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15721] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15721] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15721] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15721] ioctl(4, LOOP_CLR_FD) = 0 [pid 15721] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15721] close(4) = 0 [pid 15721] close(3) = 0 [pid 15721] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15721] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15721] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15721] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15721] open("./bus", O_RDONLY) = 3 [pid 15721] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15721] exit_group(0) = ? [pid 15721] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15721, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15722 ./strace-static-x86_64: Process 15722 attached [pid 15722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15722] setpgid(0, 0) = 0 [pid 15722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15722] write(3, "1000", 4) = 4 [pid 15722] close(3) = 0 [pid 15722] memfd_create("syzkaller", 0) = 3 [pid 15722] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15722] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15722] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15722] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15722] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15722] ioctl(4, LOOP_CLR_FD) = 0 [pid 15722] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15722] close(4) = 0 [pid 15722] close(3) = 0 [pid 15722] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15722] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15722] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15722] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15722] open("./bus", O_RDONLY) = 3 [pid 15722] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15722] exit_group(0) = ? [pid 15722] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15722, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15723 attached , child_tidptr=0x5555575235d0) = 15723 [pid 15723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15723] setpgid(0, 0) = 0 [pid 15723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15723] write(3, "1000", 4) = 4 [pid 15723] close(3) = 0 [pid 15723] memfd_create("syzkaller", 0) = 3 [pid 15723] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15723] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15723] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15723] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15723] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15723] ioctl(4, LOOP_CLR_FD) = 0 [pid 15723] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15723] close(4) = 0 [pid 15723] close(3) = 0 [pid 15723] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15723] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15723] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15723] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15723] open("./bus", O_RDONLY) = 3 [pid 15723] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15723] exit_group(0) = ? [pid 15723] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15723, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15724 attached , child_tidptr=0x5555575235d0) = 15724 [pid 15724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15724] setpgid(0, 0) = 0 [pid 15724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15724] write(3, "1000", 4) = 4 [pid 15724] close(3) = 0 [pid 15724] memfd_create("syzkaller", 0) = 3 [pid 15724] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15724] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15724] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15724] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15724] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15724] ioctl(4, LOOP_CLR_FD) = 0 [pid 15724] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15724] close(4) = 0 [pid 15724] close(3) = 0 [pid 15724] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15724] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15724] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15724] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15724] open("./bus", O_RDONLY) = 3 [pid 15724] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15724] exit_group(0) = ? [pid 15724] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15724, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15725 attached , child_tidptr=0x5555575235d0) = 15725 [pid 15725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15725] setpgid(0, 0) = 0 [pid 15725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15725] write(3, "1000", 4) = 4 [pid 15725] close(3) = 0 [pid 15725] memfd_create("syzkaller", 0) = 3 [pid 15725] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15725] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15725] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15725] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15725] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15725] ioctl(4, LOOP_CLR_FD) = 0 [pid 15725] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15725] close(4) = 0 [pid 15725] close(3) = 0 [pid 15725] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15725] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15725] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15725] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15725] open("./bus", O_RDONLY) = 3 [pid 15725] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15725] exit_group(0) = ? [pid 15725] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15725, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15726 ./strace-static-x86_64: Process 15726 attached [pid 15726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15726] setpgid(0, 0) = 0 [pid 15726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15726] write(3, "1000", 4) = 4 [pid 15726] close(3) = 0 [pid 15726] memfd_create("syzkaller", 0) = 3 [pid 15726] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15726] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15726] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15726] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15726] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15726] ioctl(4, LOOP_CLR_FD) = 0 [pid 15726] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15726] close(4) = 0 [pid 15726] close(3) = 0 [pid 15726] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15726] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15726] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15726] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15726] open("./bus", O_RDONLY) = 3 [pid 15726] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15726] exit_group(0) = ? [pid 15726] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15726, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15727 attached , child_tidptr=0x5555575235d0) = 15727 [pid 15727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15727] setpgid(0, 0) = 0 [pid 15727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15727] write(3, "1000", 4) = 4 [pid 15727] close(3) = 0 [pid 15727] memfd_create("syzkaller", 0) = 3 [pid 15727] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15727] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15727] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15727] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15727] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15727] ioctl(4, LOOP_CLR_FD) = 0 [pid 15727] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15727] close(4) = 0 [pid 15727] close(3) = 0 [pid 15727] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15727] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15727] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15727] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15727] open("./bus", O_RDONLY) = 3 [pid 15727] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15727] exit_group(0) = ? [pid 15727] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15727, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15728 attached , child_tidptr=0x5555575235d0) = 15728 [pid 15728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15728] setpgid(0, 0) = 0 [pid 15728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15728] write(3, "1000", 4) = 4 [pid 15728] close(3) = 0 [pid 15728] memfd_create("syzkaller", 0) = 3 [pid 15728] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15728] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15728] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15728] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15728] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15728] ioctl(4, LOOP_CLR_FD) = 0 [pid 15728] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15728] close(4) = 0 [pid 15728] close(3) = 0 [pid 15728] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15728] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15728] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15728] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15728] open("./bus", O_RDONLY) = 3 [pid 15728] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15728] exit_group(0) = ? [pid 15728] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15728, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15729 ./strace-static-x86_64: Process 15729 attached [pid 15729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15729] setpgid(0, 0) = 0 [pid 15729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15729] write(3, "1000", 4) = 4 [pid 15729] close(3) = 0 [pid 15729] memfd_create("syzkaller", 0) = 3 [pid 15729] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15729] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15729] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15729] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15729] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15729] ioctl(4, LOOP_CLR_FD) = 0 [pid 15729] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15729] close(4) = 0 [pid 15729] close(3) = 0 [pid 15729] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15729] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15729] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15729] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15729] open("./bus", O_RDONLY) = 3 [pid 15729] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15729] exit_group(0) = ? [pid 15729] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15729, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15730 ./strace-static-x86_64: Process 15730 attached [pid 15730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15730] setpgid(0, 0) = 0 [pid 15730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15730] write(3, "1000", 4) = 4 [pid 15730] close(3) = 0 [pid 15730] memfd_create("syzkaller", 0) = 3 [pid 15730] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15730] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15730] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15730] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15730] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15730] ioctl(4, LOOP_CLR_FD) = 0 [pid 15730] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15730] close(4) = 0 [pid 15730] close(3) = 0 [pid 15730] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15730] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15730] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15730] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15730] open("./bus", O_RDONLY) = 3 [pid 15730] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15730] exit_group(0) = ? [pid 15730] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15730, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15731 attached , child_tidptr=0x5555575235d0) = 15731 [pid 15731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15731] setpgid(0, 0) = 0 [pid 15731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15731] write(3, "1000", 4) = 4 [pid 15731] close(3) = 0 [pid 15731] memfd_create("syzkaller", 0) = 3 [pid 15731] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15731] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15731] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15731] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15731] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15731] ioctl(4, LOOP_CLR_FD) = 0 [pid 15731] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15731] close(4) = 0 [pid 15731] close(3) = 0 [pid 15731] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15731] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15731] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15731] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15731] open("./bus", O_RDONLY) = 3 [pid 15731] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15731] exit_group(0) = ? [pid 15731] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15731, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15732 attached , child_tidptr=0x5555575235d0) = 15732 [pid 15732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15732] setpgid(0, 0) = 0 [pid 15732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15732] write(3, "1000", 4) = 4 [pid 15732] close(3) = 0 [pid 15732] memfd_create("syzkaller", 0) = 3 [pid 15732] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15732] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15732] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15732] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15732] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15732] ioctl(4, LOOP_CLR_FD) = 0 [pid 15732] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15732] close(4) = 0 [pid 15732] close(3) = 0 [pid 15732] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15732] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15732] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15732] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15732] open("./bus", O_RDONLY) = 3 [pid 15732] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15732] exit_group(0) = ? [pid 15732] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15732, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15733 ./strace-static-x86_64: Process 15733 attached [pid 15733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15733] setpgid(0, 0) = 0 [pid 15733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15733] write(3, "1000", 4) = 4 [pid 15733] close(3) = 0 [pid 15733] memfd_create("syzkaller", 0) = 3 [pid 15733] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15733] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15733] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15733] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15733] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15733] ioctl(4, LOOP_CLR_FD) = 0 [pid 15733] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15733] close(4) = 0 [pid 15733] close(3) = 0 [pid 15733] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15733] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15733] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15733] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15733] open("./bus", O_RDONLY) = 3 [pid 15733] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15733] exit_group(0) = ? [pid 15733] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15733, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15734 ./strace-static-x86_64: Process 15734 attached [pid 15734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15734] setpgid(0, 0) = 0 [pid 15734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15734] write(3, "1000", 4) = 4 [pid 15734] close(3) = 0 [pid 15734] memfd_create("syzkaller", 0) = 3 [pid 15734] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15734] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15734] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15734] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15734] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15734] ioctl(4, LOOP_CLR_FD) = 0 [pid 15734] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15734] close(4) = 0 [pid 15734] close(3) = 0 [pid 15734] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15734] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15734] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15734] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15734] open("./bus", O_RDONLY) = 3 [pid 15734] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15734] exit_group(0) = ? [pid 15734] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15734, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15735 attached , child_tidptr=0x5555575235d0) = 15735 [pid 15735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15735] setpgid(0, 0) = 0 [pid 15735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15735] write(3, "1000", 4) = 4 [pid 15735] close(3) = 0 [pid 15735] memfd_create("syzkaller", 0) = 3 [pid 15735] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15735] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15735] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15735] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15735] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15735] ioctl(4, LOOP_CLR_FD) = 0 [pid 15735] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15735] close(4) = 0 [pid 15735] close(3) = 0 [pid 15735] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15735] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15735] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15735] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15735] open("./bus", O_RDONLY) = 3 [pid 15735] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15735] exit_group(0) = ? [pid 15735] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15735, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15736 ./strace-static-x86_64: Process 15736 attached [pid 15736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15736] setpgid(0, 0) = 0 [pid 15736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15736] write(3, "1000", 4) = 4 [pid 15736] close(3) = 0 [pid 15736] memfd_create("syzkaller", 0) = 3 [pid 15736] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15736] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15736] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15736] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15736] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15736] ioctl(4, LOOP_CLR_FD) = 0 [pid 15736] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15736] close(4) = 0 [pid 15736] close(3) = 0 [pid 15736] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15736] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15736] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15736] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15736] open("./bus", O_RDONLY) = 3 [pid 15736] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15736] exit_group(0) = ? [pid 15736] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15736, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15737 ./strace-static-x86_64: Process 15737 attached [pid 15737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15737] setpgid(0, 0) = 0 [pid 15737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15737] write(3, "1000", 4) = 4 [pid 15737] close(3) = 0 [pid 15737] memfd_create("syzkaller", 0) = 3 [pid 15737] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15737] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15737] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15737] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15737] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15737] ioctl(4, LOOP_CLR_FD) = 0 [pid 15737] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15737] close(4) = 0 [pid 15737] close(3) = 0 [pid 15737] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15737] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15737] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15737] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15737] open("./bus", O_RDONLY) = 3 [pid 15737] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15737] exit_group(0) = ? [pid 15737] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15737, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15738 ./strace-static-x86_64: Process 15738 attached [pid 15738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15738] setpgid(0, 0) = 0 [pid 15738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15738] write(3, "1000", 4) = 4 [pid 15738] close(3) = 0 [pid 15738] memfd_create("syzkaller", 0) = 3 [pid 15738] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15738] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15738] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15738] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15738] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15738] ioctl(4, LOOP_CLR_FD) = 0 [pid 15738] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15738] close(4) = 0 [pid 15738] close(3) = 0 [pid 15738] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15738] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15738] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15738] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15738] open("./bus", O_RDONLY) = 3 [pid 15738] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15738] exit_group(0) = ? [pid 15738] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15738, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15739 attached , child_tidptr=0x5555575235d0) = 15739 [pid 15739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15739] setpgid(0, 0) = 0 [pid 15739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15739] write(3, "1000", 4) = 4 [pid 15739] close(3) = 0 [pid 15739] memfd_create("syzkaller", 0) = 3 [pid 15739] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15739] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15739] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15739] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15739] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15739] ioctl(4, LOOP_CLR_FD) = 0 [pid 15739] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15739] close(4) = 0 [pid 15739] close(3) = 0 [pid 15739] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15739] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15739] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15739] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15739] open("./bus", O_RDONLY) = 3 [pid 15739] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15739] exit_group(0) = ? [pid 15739] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15739, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15740 ./strace-static-x86_64: Process 15740 attached [pid 15740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15740] setpgid(0, 0) = 0 [pid 15740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15740] write(3, "1000", 4) = 4 [pid 15740] close(3) = 0 [pid 15740] memfd_create("syzkaller", 0) = 3 [pid 15740] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15740] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15740] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15740] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15740] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15740] ioctl(4, LOOP_CLR_FD) = 0 [pid 15740] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15740] close(4) = 0 [pid 15740] close(3) = 0 [pid 15740] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15740] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15740] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15740] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15740] open("./bus", O_RDONLY) = 3 [pid 15740] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15740] exit_group(0) = ? [pid 15740] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15740, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15741 ./strace-static-x86_64: Process 15741 attached [pid 15741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15741] setpgid(0, 0) = 0 [pid 15741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15741] write(3, "1000", 4) = 4 [pid 15741] close(3) = 0 [pid 15741] memfd_create("syzkaller", 0) = 3 [pid 15741] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15741] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15741] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15741] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15741] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15741] ioctl(4, LOOP_CLR_FD) = 0 [pid 15741] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15741] close(4) = 0 [pid 15741] close(3) = 0 [pid 15741] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15741] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15741] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15741] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15741] open("./bus", O_RDONLY) = 3 [pid 15741] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15741] exit_group(0) = ? [pid 15741] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15741, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15742 ./strace-static-x86_64: Process 15742 attached [pid 15742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15742] setpgid(0, 0) = 0 [pid 15742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15742] write(3, "1000", 4) = 4 [pid 15742] close(3) = 0 [pid 15742] memfd_create("syzkaller", 0) = 3 [pid 15742] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15742] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15742] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15742] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15742] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15742] ioctl(4, LOOP_CLR_FD) = 0 [pid 15742] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15742] close(4) = 0 [pid 15742] close(3) = 0 [pid 15742] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15742] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15742] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15742] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15742] open("./bus", O_RDONLY) = 3 [pid 15742] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15742] exit_group(0) = ? [pid 15742] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15742, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15743 attached , child_tidptr=0x5555575235d0) = 15743 [pid 15743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15743] setpgid(0, 0) = 0 [pid 15743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15743] write(3, "1000", 4) = 4 [pid 15743] close(3) = 0 [pid 15743] memfd_create("syzkaller", 0) = 3 [pid 15743] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15743] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15743] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15743] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15743] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15743] ioctl(4, LOOP_CLR_FD) = 0 [pid 15743] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15743] close(4) = 0 [pid 15743] close(3) = 0 [pid 15743] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15743] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15743] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15743] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15743] open("./bus", O_RDONLY) = 3 [pid 15743] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15743] exit_group(0) = ? [pid 15743] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15743, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15744 attached , child_tidptr=0x5555575235d0) = 15744 [pid 15744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15744] setpgid(0, 0) = 0 [pid 15744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15744] write(3, "1000", 4) = 4 [pid 15744] close(3) = 0 [pid 15744] memfd_create("syzkaller", 0) = 3 [pid 15744] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15744] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15744] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15744] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15744] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15744] ioctl(4, LOOP_CLR_FD) = 0 [pid 15744] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15744] close(4) = 0 [pid 15744] close(3) = 0 [pid 15744] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15744] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15744] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15744] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15744] open("./bus", O_RDONLY) = 3 [pid 15744] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15744] exit_group(0) = ? [pid 15744] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15744, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15745 attached , child_tidptr=0x5555575235d0) = 15745 [pid 15745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15745] setpgid(0, 0) = 0 [pid 15745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15745] write(3, "1000", 4) = 4 [pid 15745] close(3) = 0 [pid 15745] memfd_create("syzkaller", 0) = 3 [pid 15745] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15745] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15745] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15745] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15745] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15745] ioctl(4, LOOP_CLR_FD) = 0 [pid 15745] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15745] close(4) = 0 [pid 15745] close(3) = 0 [pid 15745] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15745] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15745] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15745] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15745] open("./bus", O_RDONLY) = 3 [pid 15745] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15745] exit_group(0) = ? [pid 15745] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15745, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15746 ./strace-static-x86_64: Process 15746 attached [pid 15746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15746] setpgid(0, 0) = 0 [pid 15746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15746] write(3, "1000", 4) = 4 [pid 15746] close(3) = 0 [pid 15746] memfd_create("syzkaller", 0) = 3 [pid 15746] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15746] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15746] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15746] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15746] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15746] ioctl(4, LOOP_CLR_FD) = 0 [pid 15746] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15746] close(4) = 0 [pid 15746] close(3) = 0 [pid 15746] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15746] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15746] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15746] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15746] open("./bus", O_RDONLY) = 3 [pid 15746] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15746] exit_group(0) = ? [pid 15746] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15746, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15747 attached , child_tidptr=0x5555575235d0) = 15747 [pid 15747] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15747] setpgid(0, 0) = 0 [pid 15747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15747] write(3, "1000", 4) = 4 [pid 15747] close(3) = 0 [pid 15747] memfd_create("syzkaller", 0) = 3 [pid 15747] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15747] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15747] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15747] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15747] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15747] ioctl(4, LOOP_CLR_FD) = 0 [pid 15747] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15747] close(4) = 0 [pid 15747] close(3) = 0 [pid 15747] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15747] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15747] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15747] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15747] open("./bus", O_RDONLY) = 3 [pid 15747] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15747] exit_group(0) = ? [pid 15747] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15747, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15748 attached , child_tidptr=0x5555575235d0) = 15748 [pid 15748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15748] setpgid(0, 0) = 0 [pid 15748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15748] write(3, "1000", 4) = 4 [pid 15748] close(3) = 0 [pid 15748] memfd_create("syzkaller", 0) = 3 [pid 15748] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15748] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15748] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15748] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15748] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15748] ioctl(4, LOOP_CLR_FD) = 0 [pid 15748] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15748] close(4) = 0 [pid 15748] close(3) = 0 [pid 15748] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15748] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15748] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15748] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15748] open("./bus", O_RDONLY) = 3 [pid 15748] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15748] exit_group(0) = ? [pid 15748] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15748, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15749 attached , child_tidptr=0x5555575235d0) = 15749 [pid 15749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15749] setpgid(0, 0) = 0 [pid 15749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15749] write(3, "1000", 4) = 4 [pid 15749] close(3) = 0 [pid 15749] memfd_create("syzkaller", 0) = 3 [pid 15749] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15749] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15749] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15749] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15749] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15749] ioctl(4, LOOP_CLR_FD) = 0 [pid 15749] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15749] close(4) = 0 [pid 15749] close(3) = 0 [pid 15749] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15749] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15749] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15749] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15749] open("./bus", O_RDONLY) = 3 [pid 15749] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15749] exit_group(0) = ? [pid 15749] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15749, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15750 ./strace-static-x86_64: Process 15750 attached [pid 15750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15750] setpgid(0, 0) = 0 [pid 15750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15750] write(3, "1000", 4) = 4 [pid 15750] close(3) = 0 [pid 15750] memfd_create("syzkaller", 0) = 3 [pid 15750] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15750] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15750] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15750] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15750] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15750] ioctl(4, LOOP_CLR_FD) = 0 [pid 15750] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15750] close(4) = 0 [pid 15750] close(3) = 0 [pid 15750] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15750] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15750] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15750] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15750] open("./bus", O_RDONLY) = 3 [pid 15750] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15750] exit_group(0) = ? [pid 15750] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15750, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15751 ./strace-static-x86_64: Process 15751 attached [pid 15751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15751] setpgid(0, 0) = 0 [pid 15751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15751] write(3, "1000", 4) = 4 [pid 15751] close(3) = 0 [pid 15751] memfd_create("syzkaller", 0) = 3 [pid 15751] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15751] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15751] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15751] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15751] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15751] ioctl(4, LOOP_CLR_FD) = 0 [pid 15751] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15751] close(4) = 0 [pid 15751] close(3) = 0 [pid 15751] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15751] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15751] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15751] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15751] open("./bus", O_RDONLY) = 3 [pid 15751] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15751] exit_group(0) = ? [pid 15751] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15751, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15752 ./strace-static-x86_64: Process 15752 attached [pid 15752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15752] setpgid(0, 0) = 0 [pid 15752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15752] write(3, "1000", 4) = 4 [pid 15752] close(3) = 0 [pid 15752] memfd_create("syzkaller", 0) = 3 [pid 15752] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15752] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15752] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15752] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15752] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15752] ioctl(4, LOOP_CLR_FD) = 0 [pid 15752] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15752] close(4) = 0 [pid 15752] close(3) = 0 [pid 15752] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15752] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15752] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15752] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15752] open("./bus", O_RDONLY) = 3 [pid 15752] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15752] exit_group(0) = ? [pid 15752] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15752, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15753 attached , child_tidptr=0x5555575235d0) = 15753 [pid 15753] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15753] setpgid(0, 0) = 0 [pid 15753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15753] write(3, "1000", 4) = 4 [pid 15753] close(3) = 0 [pid 15753] memfd_create("syzkaller", 0) = 3 [pid 15753] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15753] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15753] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15753] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15753] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15753] ioctl(4, LOOP_CLR_FD) = 0 [pid 15753] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15753] close(4) = 0 [pid 15753] close(3) = 0 [pid 15753] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15753] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15753] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15753] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15753] open("./bus", O_RDONLY) = 3 [pid 15753] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15753] exit_group(0) = ? [pid 15753] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15753, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15754 attached , child_tidptr=0x5555575235d0) = 15754 [pid 15754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15754] setpgid(0, 0) = 0 [pid 15754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15754] write(3, "1000", 4) = 4 [pid 15754] close(3) = 0 [pid 15754] memfd_create("syzkaller", 0) = 3 [pid 15754] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15754] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15754] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15754] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15754] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15754] ioctl(4, LOOP_CLR_FD) = 0 [pid 15754] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15754] close(4) = 0 [pid 15754] close(3) = 0 [pid 15754] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15754] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15754] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15754] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15754] open("./bus", O_RDONLY) = 3 [pid 15754] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15754] exit_group(0) = ? [pid 15754] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15754, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15755 attached , child_tidptr=0x5555575235d0) = 15755 [pid 15755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15755] setpgid(0, 0) = 0 [pid 15755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15755] write(3, "1000", 4) = 4 [pid 15755] close(3) = 0 [pid 15755] memfd_create("syzkaller", 0) = 3 [pid 15755] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15755] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15755] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15755] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15755] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15755] ioctl(4, LOOP_CLR_FD) = 0 [pid 15755] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15755] close(4) = 0 [pid 15755] close(3) = 0 [pid 15755] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15755] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15755] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15755] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15755] open("./bus", O_RDONLY) = 3 [pid 15755] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15755] exit_group(0) = ? [pid 15755] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15755, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15756 attached , child_tidptr=0x5555575235d0) = 15756 [pid 15756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15756] setpgid(0, 0) = 0 [pid 15756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15756] write(3, "1000", 4) = 4 [pid 15756] close(3) = 0 [pid 15756] memfd_create("syzkaller", 0) = 3 [pid 15756] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15756] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15756] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15756] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15756] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15756] ioctl(4, LOOP_CLR_FD) = 0 [pid 15756] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15756] close(4) = 0 [pid 15756] close(3) = 0 [pid 15756] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15756] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15756] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15756] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15756] open("./bus", O_RDONLY) = 3 [pid 15756] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15756] exit_group(0) = ? [pid 15756] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15756, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15757 attached , child_tidptr=0x5555575235d0) = 15757 [pid 15757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15757] setpgid(0, 0) = 0 [pid 15757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15757] write(3, "1000", 4) = 4 [pid 15757] close(3) = 0 [pid 15757] memfd_create("syzkaller", 0) = 3 [pid 15757] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15757] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15757] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15757] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15757] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15757] ioctl(4, LOOP_CLR_FD) = 0 [pid 15757] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15757] close(4) = 0 [pid 15757] close(3) = 0 [pid 15757] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15757] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15757] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15757] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15757] open("./bus", O_RDONLY) = 3 [pid 15757] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15757] exit_group(0) = ? [pid 15757] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15757, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15758 ./strace-static-x86_64: Process 15758 attached [pid 15758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15758] setpgid(0, 0) = 0 [pid 15758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15758] write(3, "1000", 4) = 4 [pid 15758] close(3) = 0 [pid 15758] memfd_create("syzkaller", 0) = 3 [pid 15758] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15758] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15758] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15758] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15758] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15758] ioctl(4, LOOP_CLR_FD) = 0 [pid 15758] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15758] close(4) = 0 [pid 15758] close(3) = 0 [pid 15758] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15758] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15758] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15758] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15758] open("./bus", O_RDONLY) = 3 [pid 15758] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15758] exit_group(0) = ? [pid 15758] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15758, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15759 ./strace-static-x86_64: Process 15759 attached [pid 15759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15759] setpgid(0, 0) = 0 [pid 15759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15759] write(3, "1000", 4) = 4 [pid 15759] close(3) = 0 [pid 15759] memfd_create("syzkaller", 0) = 3 [pid 15759] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15759] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15759] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15759] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15759] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15759] ioctl(4, LOOP_CLR_FD) = 0 [pid 15759] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15759] close(4) = 0 [pid 15759] close(3) = 0 [pid 15759] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15759] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15759] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15759] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15759] open("./bus", O_RDONLY) = 3 [pid 15759] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15759] exit_group(0) = ? [pid 15759] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15759, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15760 ./strace-static-x86_64: Process 15760 attached [pid 15760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15760] setpgid(0, 0) = 0 [pid 15760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15760] write(3, "1000", 4) = 4 [pid 15760] close(3) = 0 [pid 15760] memfd_create("syzkaller", 0) = 3 [pid 15760] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15760] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15760] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15760] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15760] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15760] ioctl(4, LOOP_CLR_FD) = 0 [pid 15760] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15760] close(4) = 0 [pid 15760] close(3) = 0 [pid 15760] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15760] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15760] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15760] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15760] open("./bus", O_RDONLY) = 3 [pid 15760] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15760] exit_group(0) = ? [pid 15760] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15760, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15761 attached , child_tidptr=0x5555575235d0) = 15761 [pid 15761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15761] setpgid(0, 0) = 0 [pid 15761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15761] write(3, "1000", 4) = 4 [pid 15761] close(3) = 0 [pid 15761] memfd_create("syzkaller", 0) = 3 [pid 15761] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15761] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15761] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15761] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15761] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15761] ioctl(4, LOOP_CLR_FD) = 0 [pid 15761] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15761] close(4) = 0 [pid 15761] close(3) = 0 [pid 15761] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15761] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15761] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15761] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15761] open("./bus", O_RDONLY) = 3 [pid 15761] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15761] exit_group(0) = ? [pid 15761] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15761, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15762 attached , child_tidptr=0x5555575235d0) = 15762 [pid 15762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15762] setpgid(0, 0) = 0 [pid 15762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15762] write(3, "1000", 4) = 4 [pid 15762] close(3) = 0 [pid 15762] memfd_create("syzkaller", 0) = 3 [pid 15762] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15762] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15762] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15762] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15762] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15762] ioctl(4, LOOP_CLR_FD) = 0 [pid 15762] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15762] close(4) = 0 [pid 15762] close(3) = 0 [pid 15762] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15762] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15762] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15762] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15762] open("./bus", O_RDONLY) = 3 [pid 15762] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15762] exit_group(0) = ? [pid 15762] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15762, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15763 attached , child_tidptr=0x5555575235d0) = 15763 [pid 15763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15763] setpgid(0, 0) = 0 [pid 15763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15763] write(3, "1000", 4) = 4 [pid 15763] close(3) = 0 [pid 15763] memfd_create("syzkaller", 0) = 3 [pid 15763] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15763] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15763] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15763] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15763] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15763] ioctl(4, LOOP_CLR_FD) = 0 [pid 15763] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15763] close(4) = 0 [pid 15763] close(3) = 0 [pid 15763] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15763] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15763] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15763] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15763] open("./bus", O_RDONLY) = 3 [pid 15763] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15763] exit_group(0) = ? [pid 15763] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15763, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15764 attached , child_tidptr=0x5555575235d0) = 15764 [pid 15764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15764] setpgid(0, 0) = 0 [pid 15764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15764] write(3, "1000", 4) = 4 [pid 15764] close(3) = 0 [pid 15764] memfd_create("syzkaller", 0) = 3 [pid 15764] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15764] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15764] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15764] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15764] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15764] ioctl(4, LOOP_CLR_FD) = 0 [pid 15764] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15764] close(4) = 0 [pid 15764] close(3) = 0 [pid 15764] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15764] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15764] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15764] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15764] open("./bus", O_RDONLY) = 3 [pid 15764] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15764] exit_group(0) = ? [pid 15764] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15764, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15765 attached , child_tidptr=0x5555575235d0) = 15765 [pid 15765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15765] setpgid(0, 0) = 0 [pid 15765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15765] write(3, "1000", 4) = 4 [pid 15765] close(3) = 0 [pid 15765] memfd_create("syzkaller", 0) = 3 [pid 15765] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15765] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15765] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15765] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15765] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15765] ioctl(4, LOOP_CLR_FD) = 0 [pid 15765] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15765] close(4) = 0 [pid 15765] close(3) = 0 [pid 15765] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15765] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15765] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15765] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15765] open("./bus", O_RDONLY) = 3 [pid 15765] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15765] exit_group(0) = ? [pid 15765] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15765, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15766 attached , child_tidptr=0x5555575235d0) = 15766 [pid 15766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15766] setpgid(0, 0) = 0 [pid 15766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15766] write(3, "1000", 4) = 4 [pid 15766] close(3) = 0 [pid 15766] memfd_create("syzkaller", 0) = 3 [pid 15766] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15766] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15766] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15766] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15766] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15766] ioctl(4, LOOP_CLR_FD) = 0 [pid 15766] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15766] close(4) = 0 [pid 15766] close(3) = 0 [pid 15766] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15766] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15766] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15766] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15766] open("./bus", O_RDONLY) = 3 [pid 15766] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15766] exit_group(0) = ? [pid 15766] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15766, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15767 attached , child_tidptr=0x5555575235d0) = 15767 [pid 15767] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15767] setpgid(0, 0) = 0 [pid 15767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15767] write(3, "1000", 4) = 4 [pid 15767] close(3) = 0 [pid 15767] memfd_create("syzkaller", 0) = 3 [pid 15767] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15767] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15767] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15767] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15767] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15767] ioctl(4, LOOP_CLR_FD) = 0 [pid 15767] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15767] close(4) = 0 [pid 15767] close(3) = 0 [pid 15767] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15767] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15767] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15767] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15767] open("./bus", O_RDONLY) = 3 [pid 15767] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15767] exit_group(0) = ? [pid 15767] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15767, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15768 ./strace-static-x86_64: Process 15768 attached [pid 15768] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15768] setpgid(0, 0) = 0 [pid 15768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15768] write(3, "1000", 4) = 4 [pid 15768] close(3) = 0 [pid 15768] memfd_create("syzkaller", 0) = 3 [pid 15768] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15768] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15768] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15768] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15768] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15768] ioctl(4, LOOP_CLR_FD) = 0 [pid 15768] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15768] close(4) = 0 [pid 15768] close(3) = 0 [pid 15768] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15768] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15768] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15768] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15768] open("./bus", O_RDONLY) = 3 [pid 15768] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15768] exit_group(0) = ? [pid 15768] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15768, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15769 ./strace-static-x86_64: Process 15769 attached [pid 15769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15769] setpgid(0, 0) = 0 [pid 15769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15769] write(3, "1000", 4) = 4 [pid 15769] close(3) = 0 [pid 15769] memfd_create("syzkaller", 0) = 3 [pid 15769] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15769] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15769] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15769] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15769] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15769] ioctl(4, LOOP_CLR_FD) = 0 [pid 15769] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15769] close(4) = 0 [pid 15769] close(3) = 0 [pid 15769] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15769] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15769] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15769] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15769] open("./bus", O_RDONLY) = 3 [pid 15769] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15769] exit_group(0) = ? [pid 15769] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15769, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15770 attached , child_tidptr=0x5555575235d0) = 15770 [pid 15770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15770] setpgid(0, 0) = 0 [pid 15770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15770] write(3, "1000", 4) = 4 [pid 15770] close(3) = 0 [pid 15770] memfd_create("syzkaller", 0) = 3 [pid 15770] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15770] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15770] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15770] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15770] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15770] ioctl(4, LOOP_CLR_FD) = 0 [pid 15770] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15770] close(4) = 0 [pid 15770] close(3) = 0 [pid 15770] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15770] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15770] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15770] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15770] open("./bus", O_RDONLY) = 3 [pid 15770] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15770] exit_group(0) = ? [pid 15770] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15770, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15771 ./strace-static-x86_64: Process 15771 attached [pid 15771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15771] setpgid(0, 0) = 0 [pid 15771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15771] write(3, "1000", 4) = 4 [pid 15771] close(3) = 0 [pid 15771] memfd_create("syzkaller", 0) = 3 [pid 15771] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15771] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15771] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15771] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15771] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15771] ioctl(4, LOOP_CLR_FD) = 0 [pid 15771] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15771] close(4) = 0 [pid 15771] close(3) = 0 [pid 15771] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15771] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15771] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15771] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15771] open("./bus", O_RDONLY) = 3 [pid 15771] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15771] exit_group(0) = ? [pid 15771] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15771, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15772 ./strace-static-x86_64: Process 15772 attached [pid 15772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15772] setpgid(0, 0) = 0 [pid 15772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15772] write(3, "1000", 4) = 4 [pid 15772] close(3) = 0 [pid 15772] memfd_create("syzkaller", 0) = 3 [pid 15772] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15772] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15772] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15772] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15772] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15772] ioctl(4, LOOP_CLR_FD) = 0 [pid 15772] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15772] close(4) = 0 [pid 15772] close(3) = 0 [pid 15772] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15772] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15772] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15772] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15772] open("./bus", O_RDONLY) = 3 [pid 15772] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15772] exit_group(0) = ? [pid 15772] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15772, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15773 attached , child_tidptr=0x5555575235d0) = 15773 [pid 15773] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15773] setpgid(0, 0) = 0 [pid 15773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15773] write(3, "1000", 4) = 4 [pid 15773] close(3) = 0 [pid 15773] memfd_create("syzkaller", 0) = 3 [pid 15773] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15773] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15773] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15773] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15773] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15773] ioctl(4, LOOP_CLR_FD) = 0 [pid 15773] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15773] close(4) = 0 [pid 15773] close(3) = 0 [pid 15773] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15773] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15773] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15773] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15773] open("./bus", O_RDONLY) = 3 [pid 15773] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15773] exit_group(0) = ? [pid 15773] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15773, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15774 attached , child_tidptr=0x5555575235d0) = 15774 [pid 15774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15774] setpgid(0, 0) = 0 [pid 15774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15774] write(3, "1000", 4) = 4 [pid 15774] close(3) = 0 [pid 15774] memfd_create("syzkaller", 0) = 3 [pid 15774] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15774] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15774] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15774] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15774] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15774] ioctl(4, LOOP_CLR_FD) = 0 [pid 15774] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15774] close(4) = 0 [pid 15774] close(3) = 0 [pid 15774] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15774] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15774] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15774] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15774] open("./bus", O_RDONLY) = 3 [pid 15774] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15774] exit_group(0) = ? [pid 15774] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15774, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15775 attached , child_tidptr=0x5555575235d0) = 15775 [pid 15775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15775] setpgid(0, 0) = 0 [pid 15775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15775] write(3, "1000", 4) = 4 [pid 15775] close(3) = 0 [pid 15775] memfd_create("syzkaller", 0) = 3 [pid 15775] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15775] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15775] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15775] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15775] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15775] ioctl(4, LOOP_CLR_FD) = 0 [pid 15775] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15775] close(4) = 0 [pid 15775] close(3) = 0 [pid 15775] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15775] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15775] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15775] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15775] open("./bus", O_RDONLY) = 3 [pid 15775] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15775] exit_group(0) = ? [pid 15775] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15775, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15776 attached , child_tidptr=0x5555575235d0) = 15776 [pid 15776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15776] setpgid(0, 0) = 0 [pid 15776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15776] write(3, "1000", 4) = 4 [pid 15776] close(3) = 0 [pid 15776] memfd_create("syzkaller", 0) = 3 [pid 15776] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15776] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15776] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15776] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15776] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15776] ioctl(4, LOOP_CLR_FD) = 0 [pid 15776] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15776] close(4) = 0 [pid 15776] close(3) = 0 [pid 15776] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15776] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15776] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15776] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15776] open("./bus", O_RDONLY) = 3 [pid 15776] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15776] exit_group(0) = ? [pid 15776] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15776, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15777 attached , child_tidptr=0x5555575235d0) = 15777 [pid 15777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15777] setpgid(0, 0) = 0 [pid 15777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15777] write(3, "1000", 4) = 4 [pid 15777] close(3) = 0 [pid 15777] memfd_create("syzkaller", 0) = 3 [pid 15777] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15777] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15777] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15777] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15777] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15777] ioctl(4, LOOP_CLR_FD) = 0 [pid 15777] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15777] close(4) = 0 [pid 15777] close(3) = 0 [pid 15777] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15777] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15777] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15777] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15777] open("./bus", O_RDONLY) = 3 [pid 15777] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15777] exit_group(0) = ? [pid 15777] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15777, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15778 attached , child_tidptr=0x5555575235d0) = 15778 [pid 15778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15778] setpgid(0, 0) = 0 [pid 15778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15778] write(3, "1000", 4) = 4 [pid 15778] close(3) = 0 [pid 15778] memfd_create("syzkaller", 0) = 3 [pid 15778] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15778] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15778] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15778] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15778] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15778] ioctl(4, LOOP_CLR_FD) = 0 [pid 15778] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15778] close(4) = 0 [pid 15778] close(3) = 0 [pid 15778] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15778] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15778] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15778] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15778] open("./bus", O_RDONLY) = 3 [pid 15778] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15778] exit_group(0) = ? [pid 15778] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15778, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15779 attached , child_tidptr=0x5555575235d0) = 15779 [pid 15779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15779] setpgid(0, 0) = 0 [pid 15779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15779] write(3, "1000", 4) = 4 [pid 15779] close(3) = 0 [pid 15779] memfd_create("syzkaller", 0) = 3 [pid 15779] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15779] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15779] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15779] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15779] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15779] ioctl(4, LOOP_CLR_FD) = 0 [pid 15779] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15779] close(4) = 0 [pid 15779] close(3) = 0 [pid 15779] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15779] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15779] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15779] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15779] open("./bus", O_RDONLY) = 3 [pid 15779] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15779] exit_group(0) = ? [pid 15779] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15779, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15780 ./strace-static-x86_64: Process 15780 attached [pid 15780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15780] setpgid(0, 0) = 0 [pid 15780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15780] write(3, "1000", 4) = 4 [pid 15780] close(3) = 0 [pid 15780] memfd_create("syzkaller", 0) = 3 [pid 15780] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15780] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15780] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15780] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15780] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15780] ioctl(4, LOOP_CLR_FD) = 0 [pid 15780] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15780] close(4) = 0 [pid 15780] close(3) = 0 [pid 15780] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15780] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15780] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15780] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15780] open("./bus", O_RDONLY) = 3 [pid 15780] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15780] exit_group(0) = ? [pid 15780] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15780, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15781 attached [pid 15781] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5066] <... clone resumed>, child_tidptr=0x5555575235d0) = 15781 [pid 15781] <... prctl resumed>) = 0 [pid 15781] setpgid(0, 0) = 0 [pid 15781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15781] write(3, "1000", 4) = 4 [pid 15781] close(3) = 0 [pid 15781] memfd_create("syzkaller", 0) = 3 [pid 15781] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15781] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15781] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15781] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15781] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15781] ioctl(4, LOOP_CLR_FD) = 0 [pid 15781] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15781] close(4) = 0 [pid 15781] close(3) = 0 [pid 15781] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15781] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15781] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15781] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15781] open("./bus", O_RDONLY) = 3 [pid 15781] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15781] exit_group(0) = ? [pid 15781] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15781, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15782 attached , child_tidptr=0x5555575235d0) = 15782 [pid 15782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15782] setpgid(0, 0) = 0 [pid 15782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15782] write(3, "1000", 4) = 4 [pid 15782] close(3) = 0 [pid 15782] memfd_create("syzkaller", 0) = 3 [pid 15782] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15782] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15782] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15782] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15782] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15782] ioctl(4, LOOP_CLR_FD) = 0 [pid 15782] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15782] close(4) = 0 [pid 15782] close(3) = 0 [pid 15782] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15782] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15782] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15782] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15782] open("./bus", O_RDONLY) = 3 [pid 15782] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15782] exit_group(0) = ? [pid 15782] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15782, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15783 ./strace-static-x86_64: Process 15783 attached [pid 15783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15783] setpgid(0, 0) = 0 [pid 15783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15783] write(3, "1000", 4) = 4 [pid 15783] close(3) = 0 [pid 15783] memfd_create("syzkaller", 0) = 3 [pid 15783] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15783] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15783] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15783] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15783] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15783] ioctl(4, LOOP_CLR_FD) = 0 [pid 15783] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15783] close(4) = 0 [pid 15783] close(3) = 0 [pid 15783] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15783] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15783] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15783] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15783] open("./bus", O_RDONLY) = 3 [pid 15783] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15783] exit_group(0) = ? [pid 15783] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15783, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15784 attached , child_tidptr=0x5555575235d0) = 15784 [pid 15784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15784] setpgid(0, 0) = 0 [pid 15784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15784] write(3, "1000", 4) = 4 [pid 15784] close(3) = 0 [pid 15784] memfd_create("syzkaller", 0) = 3 [pid 15784] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15784] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15784] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15784] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15784] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15784] ioctl(4, LOOP_CLR_FD) = 0 [pid 15784] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15784] close(4) = 0 [pid 15784] close(3) = 0 [pid 15784] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15784] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15784] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15784] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15784] open("./bus", O_RDONLY) = 3 [pid 15784] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15784] exit_group(0) = ? [pid 15784] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15784, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15785 attached , child_tidptr=0x5555575235d0) = 15785 [pid 15785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15785] setpgid(0, 0) = 0 [pid 15785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15785] write(3, "1000", 4) = 4 [pid 15785] close(3) = 0 [pid 15785] memfd_create("syzkaller", 0) = 3 [pid 15785] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15785] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15785] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15785] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15785] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15785] ioctl(4, LOOP_CLR_FD) = 0 [pid 15785] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15785] close(4) = 0 [pid 15785] close(3) = 0 [pid 15785] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15785] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15785] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15785] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15785] open("./bus", O_RDONLY) = 3 [pid 15785] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15785] exit_group(0) = ? [pid 15785] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15785, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15786 ./strace-static-x86_64: Process 15786 attached [pid 15786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15786] setpgid(0, 0) = 0 [pid 15786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15786] write(3, "1000", 4) = 4 [pid 15786] close(3) = 0 [pid 15786] memfd_create("syzkaller", 0) = 3 [pid 15786] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15786] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15786] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15786] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15786] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15786] ioctl(4, LOOP_CLR_FD) = 0 [pid 15786] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15786] close(4) = 0 [pid 15786] close(3) = 0 [pid 15786] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15786] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15786] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15786] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15786] open("./bus", O_RDONLY) = 3 [pid 15786] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15786] exit_group(0) = ? [pid 15786] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15786, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15787 ./strace-static-x86_64: Process 15787 attached [pid 15787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15787] setpgid(0, 0) = 0 [pid 15787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15787] write(3, "1000", 4) = 4 [pid 15787] close(3) = 0 [pid 15787] memfd_create("syzkaller", 0) = 3 [pid 15787] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15787] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15787] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15787] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15787] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15787] ioctl(4, LOOP_CLR_FD) = 0 [pid 15787] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15787] close(4) = 0 [pid 15787] close(3) = 0 [pid 15787] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15787] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15787] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15787] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15787] open("./bus", O_RDONLY) = 3 [pid 15787] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15787] exit_group(0) = ? [pid 15787] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15787, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15788 attached , child_tidptr=0x5555575235d0) = 15788 [pid 15788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15788] setpgid(0, 0) = 0 [pid 15788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15788] write(3, "1000", 4) = 4 [pid 15788] close(3) = 0 [pid 15788] memfd_create("syzkaller", 0) = 3 [pid 15788] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15788] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15788] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15788] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15788] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15788] ioctl(4, LOOP_CLR_FD) = 0 [pid 15788] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15788] close(4) = 0 [pid 15788] close(3) = 0 [pid 15788] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15788] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15788] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15788] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15788] open("./bus", O_RDONLY) = 3 [pid 15788] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15788] exit_group(0) = ? [pid 15788] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15788, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 15789 attached , child_tidptr=0x5555575235d0) = 15789 [pid 15789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15789] setpgid(0, 0) = 0 [pid 15789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15789] write(3, "1000", 4) = 4 [pid 15789] close(3) = 0 [pid 15789] memfd_create("syzkaller", 0) = 3 [pid 15789] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15789] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15789] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15789] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15789] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15789] ioctl(4, LOOP_CLR_FD) = 0 [pid 15789] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15789] close(4) = 0 [pid 15789] close(3) = 0 [pid 15789] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [pid 15789] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15789] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15789] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15789] open("./bus", O_RDONLY) = 3 [pid 15789] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15789] exit_group(0) = ? [pid 15789] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15789, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15790 ./strace-static-x86_64: Process 15790 attached [pid 15790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15790] setpgid(0, 0) = 0 [pid 15790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15790] write(3, "1000", 4) = 4 [pid 15790] close(3) = 0 [pid 15790] memfd_create("syzkaller", 0) = 3 [pid 15790] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15790] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15790] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15790] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15790] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15790] ioctl(4, LOOP_CLR_FD) = 0 [pid 15790] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15790] close(4) = 0 [pid 15790] close(3) = 0 [pid 15790] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [ 286.153693][ T28] INFO: task kworker/1:3:4767 blocked for more than 143 seconds. [ 286.161837][ T28] Not tainted 6.2.0-rc3-syzkaller-00030-ge8f60cd7db24 #0 [ 286.169856][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.178824][ T28] task:kworker/1:3 state:D stack:22656 pid:4767 ppid:2 flags:0x00004000 [ 286.188258][ T28] Workqueue: events_long flush_mdb [ 286.193462][ T28] Call Trace: [ 286.197110][ T28] [ 286.200074][ T28] __schedule+0x995/0xe20 [ 286.204808][ T28] ? release_firmware_map_entry+0x180/0x180 [ 286.210729][ T28] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 286.216975][ T28] ? print_irqtrace_events+0x220/0x220 [ 286.222756][ T28] ? do_raw_spin_unlock+0x134/0x8a0 [ 286.228319][ T28] ? _raw_spin_unlock_irq+0x1f/0x40 [ 286.233752][ T28] ? lockdep_hardirqs_on+0x8d/0x130 [ 286.238998][ T28] schedule+0xcb/0x190 [ 286.243064][ T28] io_schedule+0x83/0x100 [ 286.247701][ T28] bit_wait_io+0xe/0xc0 [ 286.251862][ T28] __wait_on_bit_lock+0xbb/0x1a0 [ 286.257136][ T28] ? bit_wait+0xc0/0xc0 [ 286.261580][ T28] out_of_line_wait_on_bit_lock+0x1c3/0x240 [ 286.267853][ T28] ? bit_wait+0xc0/0xc0 [ 286.272049][ T28] ? __wait_on_bit_lock+0x1a0/0x1a0 [ 286.277578][ T28] ? bit_waitqueue+0x30/0x30 [ 286.282538][ T28] hfs_mdb_commit+0xacd/0xf80 [ 286.287691][ T28] process_one_work+0x877/0xdb0 [ 286.292628][ T28] ? worker_detach_from_pool+0x260/0x260 [ 286.298531][ T28] ? _raw_spin_lock_irq+0xba/0xf0 [pid 15790] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15790] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15790] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15790] open("./bus", O_RDONLY) = 3 [pid 15790] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15790] exit_group(0) = ? [pid 15790] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15790, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15791 ./strace-static-x86_64: Process 15791 attached [pid 15791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15791] setpgid(0, 0) = 0 [pid 15791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15791] write(3, "1000", 4) = 4 [pid 15791] close(3) = 0 [pid 15791] memfd_create("syzkaller", 0) = 3 [pid 15791] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15791] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15791] munmap(0x7f4bb7e55000, 32768) = 0 [pid 15791] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15791] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15791] ioctl(4, LOOP_CLR_FD) = 0 [pid 15791] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15791] close(4) = 0 [pid 15791] close(3) = 0 [pid 15791] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [ 286.303781][ T28] ? _raw_spin_lock_irqsave+0x100/0x100 [ 286.309340][ T28] worker_thread+0xb14/0x1330 [ 286.314281][ T28] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 286.320193][ T28] kthread+0x266/0x300 [ 286.324657][ T28] ? rcu_lock_release+0x20/0x20 [ 286.329541][ T28] ? kthread_blkcg+0xd0/0xd0 [ 286.334452][ T28] ret_from_fork+0x1f/0x30 [ 286.338931][ T28] [ 286.341976][ T28] [ 286.341976][ T28] Showing all locks held in the system: [ 286.350573][ T28] 1 lock held by rcu_tasks_kthre/12: [ 286.356198][ T28] #0: ffffffff8d326f50 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 [ 286.367117][ T28] 1 lock held by rcu_tasks_trace/13: [ 286.372437][ T28] #0: ffffffff8d327750 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 [ 286.383891][ T28] 1 lock held by khungtaskd/28: [ 286.388770][ T28] #0: ffffffff8d326d80 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 286.398560][ T28] 2 locks held by kworker/0:2/898: [ 286.404012][ T28] #0: ffff888012872538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 [ 286.414580][ T28] #1: ffffc90004e87d00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 [ 286.426156][ T28] 2 locks held by getty/4745: [ 286.430833][ T28] #0: ffff88802839c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 286.440931][ T28] #1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 [pid 15791] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = -1 ENOTDIR (Not a directory) [pid 15791] creat("./bus", 000) = -1 EISDIR (Is a directory) [pid 15791] lseek(-1, 512, SEEK_SET) = -1 EBADF (Bad file descriptor) [pid 15791] open("./bus", O_RDONLY) = 3 [pid 15791] sendfile(-1, 3, NULL, 130817) = -1 EBADF (Bad file descriptor) [pid 15791] exit_group(0) = ? [pid 15791] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15791, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555575235d0) = 15792 ./strace-static-x86_64: Process 15792 attached [pid 15792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 15792] setpgid(0, 0) = 0 [pid 15792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 15792] write(3, "1000", 4) = 4 [pid 15792] close(3) = 0 [pid 15792] memfd_create("syzkaller", 0) = 3 [pid 15792] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4bb7e55000 [pid 15792] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768 [pid 15792] munmap(0x7f4bb7e55000, 32768) = 0 [ 286.451425][ T28] 2 locks held by kworker/1:3/4767: [ 286.456904][ T28] #0: ffff888012871538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 [ 286.467923][ T28] #1: ffffc900038efd00 ((work_completion)(&(&sbi->mdb_work)->work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 [ 286.480264][ T28] 2 locks held by syz-executor208/15791: [ 286.486119][ T28] #0: ffff88807c1a0928 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: lock_mount+0x5f/0x2d0 [pid 15792] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 15792] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15792] ioctl(4, LOOP_CLR_FD) = 0 [pid 15792] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 15792] close(4) = 0 [pid 15792] close(3) = 0 [pid 15792] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EISDIR (Is a directory) [ 286.496320][ T28] #1: ffffffff8d32c3f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x384/0x860 [ 286.507498][ T28] [ 286.509848][ T28] ============================================= [ 286.509848][ T28] [ 286.518983][ T28] NMI backtrace for cpu 1 [ 286.523343][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc3-syzkaller-00030-ge8f60cd7db24 #0 [ 286.533172][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 286.543256][ T28] Call Trace: [ 286.546557][ T28] [ 286.549508][ T28] dump_stack_lvl+0x1b1/0x290 [ 286.554241][ T28] ? nf_tcp_handle_invalid+0x630/0x630 [ 286.559694][ T28] ? panic+0x710/0x710 [ 286.563754][ T28] ? tick_nohz_tick_stopped+0x76/0xb0 [ 286.569189][ T28] ? nmi_cpu_backtrace+0x205/0x4f0 [ 286.574346][ T28] nmi_cpu_backtrace+0x46f/0x4f0 [ 286.579285][ T28] ? vprintk_emit+0x109/0x1e0 [ 286.583984][ T28] ? nmi_trigger_cpumask_backtrace+0x420/0x420 [ 286.590152][ T28] ? _printk+0xc0/0x100 [ 286.594347][ T28] ? panic+0x710/0x710 [ 286.598436][ T28] ? __wake_up_klogd+0xcd/0x100 [ 286.603297][ T28] ? panic+0x710/0x710 [ 286.607362][ T28] ? nmi_trigger_cpumask_backtrace+0xc9/0x420 [ 286.613430][ T28] nmi_trigger_cpumask_backtrace+0x1ba/0x420 [ 286.619427][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 286.625543][ T28] watchdog+0xcd5/0xd20 [ 286.629747][ T28] kthread+0x266/0x300 [ 286.633806][ T28] ? hungtask_pm_notify+0x50/0x50 [ 286.638837][ T28] ? kthread_blkcg+0xd0/0xd0 [ 286.643436][ T28] ret_from_fork+0x1f/0x30 [ 286.647854][ T28] [ 286.651099][ T28] Sending NMI from CPU 1 to CPUs 0: [ 286.656408][ C0] NMI backtrace for cpu 0 [ 286.656417][ C0] CPU: 0 PID: 75 Comm: kworker/u4:4 Not tainted 6.2.0-rc3-syzkaller-00030-ge8f60cd7db24 #0 [ 286.656432][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 286.656440][ C0] Workqueue: events_unbound flush_memcg_stats_dwork [ 286.656536][ C0] RIP: 0010:trace_lock_acquire+0x66/0x260 [ 286.656554][ C0] Code: 0d 0f 86 a4 00 00 00 89 ed 48 89 e8 48 c1 e8 06 48 8d 3c c5 a8 67 96 8e be 08 00 00 00 e8 62 79 76 00 48 0f a3 2d 72 5a 2b 0d <73> 3d 65 ff 05 09 8b 98 7e 48 c7 c0 80 d2 82 8e 48 c1 e8 03 80 3c [ 286.656565][ C0] RSP: 0018:ffffc90001597778 EFLAGS: 00000057 [ 286.656575][ C0] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: ffffffff816b0d2e [ 286.656585][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e9667a8 [ 286.656593][ C0] RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1d2ccf6 [ 286.656601][ C0] R10: fffffbfff1d2ccf6 R11: 1ffffffff1d2ccf5 R12: dffffc0000000000 [ 286.656611][ C0] R13: 1ffff920002b2efc R14: 0000000000000001 R15: 0000000000000000 [ 286.656619][ C0] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 286.656630][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.656639][ C0] CR2: 00007f4bb7e5cc00 CR3: 000000000d08e000 CR4: 00000000003506f0 [ 286.656651][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 286.656660][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 286.656669][ C0] Call Trace: [ 286.656673][ C0] [ 286.656680][ C0] lock_acquire+0xa4/0x3c0 [ 286.656694][ C0] ? debug_object_activate+0x96/0x6e0 [ 286.656740][ C0] ? read_lock_is_recursive+0x10/0x10 [ 286.656765][ C0] _raw_spin_lock_irqsave+0xb3/0x100 [ 286.656784][ C0] ? debug_object_activate+0x96/0x6e0 [ 286.656800][ C0] ? _raw_spin_lock+0x40/0x40 [ 286.656817][ C0] ? do_raw_spin_lock+0x147/0x3a0 [ 286.656838][ C0] debug_object_activate+0x96/0x6e0 [ 286.656864][ C0] __mod_timer+0x837/0xcf0 [ 286.656900][ C0] ? mod_timer_pending+0x20/0x20 [ 286.656912][ C0] ? _raw_spin_unlock_irqrestore+0x8b/0x120 [ 286.656930][ C0] ? lockdep_hardirqs_on+0x8d/0x130 [ 286.656944][ C0] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 286.656964][ C0] ? queue_delayed_work_on+0xda/0x210 [ 286.656978][ C0] ? __queue_delayed_work+0x16a/0x200 [ 286.656994][ C0] queue_delayed_work_on+0x125/0x210 [ 286.657010][ C0] ? delayed_work_timer_fn+0x80/0x80 [ 286.657023][ C0] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 286.657043][ C0] ? do_raw_spin_unlock+0x134/0x8a0 [ 286.657064][ C0] process_one_work+0x877/0xdb0 [ 286.657088][ C0] ? worker_detach_from_pool+0x260/0x260 [ 286.657107][ C0] ? _raw_spin_lock_irq+0xba/0xf0 [ 286.657125][ C0] ? _raw_spin_lock_irqsave+0x100/0x100 [ 286.657146][ C0] worker_thread+0xb14/0x1330 [ 286.657168][ C0] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 286.657193][ C0] kthread+0x266/0x300 [ 286.657206][ C0] ? rcu_lock_release+0x20/0x20 [ 286.657222][ C0] ? kthread_blkcg+0xd0/0xd0 [ 286.657237][ C0] ret_from_fork+0x1f/0x30 [ 286.657260][ C0] [ 286.658041][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 286.658052][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc3-syzkaller-00030-ge8f60cd7db24 #0 [ 286.658068][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 286.658076][ T28] Call Trace: [ 286.658081][ T28] [ 286.658087][ T28] dump_stack_lvl+0x1b1/0x290 [ 286.658113][ T28] ? nf_tcp_handle_invalid+0x630/0x630 [ 286.658133][ T28] ? panic+0x710/0x710 [ 286.658154][ T28] ? vscnprintf+0x59/0x80 [ 286.658172][ T28] panic+0x2d6/0x710 [ 286.658187][ T28] ? schedule_preempt_disabled+0x20/0x20 [ 286.658205][ T28] ? nmi_trigger_cpumask_backtrace+0x2d0/0x420 [ 286.658226][ T28] ? memcpy_page_flushcache+0x100/0x100 [ 286.658246][ T28] ? nmi_trigger_cpumask_backtrace+0x2d0/0x420 [ 286.658265][ T28] ? nmi_trigger_cpumask_backtrace+0x34e/0x420 [ 286.658287][ T28] ? nmi_trigger_cpumask_backtrace+0x353/0x420 [ 286.658306][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 286.658326][ T28] watchdog+0xd15/0xd20 [ 286.658362][ T28] kthread+0x266/0x300 [ 286.658378][ T28] ? hungtask_pm_notify+0x50/0x50 [ 286.658395][ T28] ? kthread_blkcg+0xd0/0xd0 [ 286.658413][ T28] ret_from_fork+0x1f/0x30 [ 286.658444][ T28] [ 286.662133][ T28] Kernel Offset: disabled [ 287.082660][ T28] Rebooting in 86400 seconds..