./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 E