./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3551528974
<...>
Warning: Permanently added '10.128.0.99' (ECDSA) to the list of known hosts.
execve("./syz-executor3551528974", ["./syz-executor3551528974"], 0x7ffc8db755d0 /* 10 vars */) = 0
brk(NULL) = 0x5555563e1000
brk(0x5555563e1c40) = 0x5555563e1c40
arch_prctl(ARCH_SET_FS, 0x5555563e1300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor3551528974", 4096) = 28
brk(0x555556402c40) = 0x555556402c40
brk(0x555556403000) = 0x555556403000
mprotect(0x7fea162b8000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555563e15d0) = 5071
./strace-static-x86_64: Process 5071 attached
[pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5071] setpgid(0, 0) = 0
[pid 5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5071] write(3, "1000", 4) = 4
[pid 5071] close(3) = 0
[pid 5071] memfd_create("syzkaller", 0) = 3
[pid 5071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[ 69.814384][ T5071] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5071 'syz-executor355'
[pid 5071] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5071] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5071] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5071] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5071] close(3) = 0
[pid 5071] mkdir("./file0", 0777) = 0
[pid 5071] mount("/dev/loop0", "./file0", "jfs", MS_NOEXEC, "") = 0
[pid 5071] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5071] chdir("./file0") = 0
[pid 5071] ioctl(4, LOOP_CLR_FD) = 0
[pid 5071] close(4) = 0
[pid 5071] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = 4
[pid 5071] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5071] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5071] openat(AT_FDCWD, "./bus", O_RDONLY) = 5
[pid 5071] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 6
[pid 5071] write(6, "\x68\x74\x63\x70\x00", 5) = 5
[ 70.047047][ T5071] loop0: detected capacity change from 0 to 32768
[pid 5071] sendfile(6, 5, NULL, 131071) = 131071
[pid 5071] exit_group(0) = ?
[pid 5071] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5071, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 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=0x5555563e15d0) = 5073
./strace-static-x86_64: Process 5073 attached
[pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5073] setpgid(0, 0) = 0
[pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5073] write(3, "1000", 4) = 4
[pid 5073] close(3) = 0
[pid 5073] memfd_create("syzkaller", 0) = 3
[pid 5073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5073] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5073] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5073] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5073] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5073] ioctl(4, LOOP_CLR_FD) = 0
[pid 5073] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5073] close(4) = 0
[pid 5073] close(3) = 0
[pid 5073] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5073] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5073] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5073] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5073] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5073] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5073] sendfile(4, 3, NULL, 131071) = 131071
[pid 5073] exit_group(0) = ?
[pid 5073] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5073, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=19 /* 0.19 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=0x5555563e15d0) = 5074
./strace-static-x86_64: Process 5074 attached
[pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5074] setpgid(0, 0) = 0
[pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5074] write(3, "1000", 4) = 4
[pid 5074] close(3) = 0
[pid 5074] memfd_create("syzkaller", 0) = 3
[pid 5074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5074] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5074] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5074] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5074] ioctl(4, LOOP_CLR_FD) = 0
[pid 5074] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5074] close(4) = 0
[pid 5074] close(3) = 0
[pid 5074] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5074] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5074] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5074] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5074] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5074] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5074] sendfile(4, 3, NULL, 131071) = 131071
[pid 5074] exit_group(0) = ?
[pid 5074] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=26 /* 0.26 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=0x5555563e15d0) = 5075
./strace-static-x86_64: Process 5075 attached
[pid 5075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5075] setpgid(0, 0) = 0
[pid 5075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5075] write(3, "1000", 4) = 4
[pid 5075] close(3) = 0
[pid 5075] memfd_create("syzkaller", 0) = 3
[pid 5075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5075] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5075] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5075] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5075] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5075] ioctl(4, LOOP_CLR_FD) = 0
[pid 5075] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5075] close(4) = 0
[pid 5075] close(3) = 0
[pid 5075] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5075] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5075] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5075] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5075] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5075] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5075] sendfile(4, 3, NULL, 131071) = 131071
[pid 5075] exit_group(0) = ?
[pid 5075] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5075, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5076
./strace-static-x86_64: Process 5076 attached
[pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5076] setpgid(0, 0) = 0
[pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5076] write(3, "1000", 4) = 4
[pid 5076] close(3) = 0
[pid 5076] memfd_create("syzkaller", 0) = 3
[pid 5076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5076] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5076] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5076] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5076] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5076] ioctl(4, LOOP_CLR_FD) = 0
[pid 5076] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5076] close(4) = 0
[pid 5076] close(3) = 0
[pid 5076] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5076] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5076] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5076] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5076] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5076] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5076] sendfile(4, 3, NULL, 131071) = 131071
[pid 5076] exit_group(0) = ?
[pid 5076] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5077
./strace-static-x86_64: Process 5077 attached
[pid 5077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5077] setpgid(0, 0) = 0
[pid 5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5077] write(3, "1000", 4) = 4
[pid 5077] close(3) = 0
[pid 5077] memfd_create("syzkaller", 0) = 3
[pid 5077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5077] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5077] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5077] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5077] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5077] ioctl(4, LOOP_CLR_FD) = 0
[pid 5077] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5077] close(4) = 0
[pid 5077] close(3) = 0
[pid 5077] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5077] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5077] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5077] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5077] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5077] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5077] sendfile(4, 3, NULL, 131071) = 131071
[pid 5077] exit_group(0) = ?
[pid 5077] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5077, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 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=0x5555563e15d0) = 5078
./strace-static-x86_64: Process 5078 attached
[pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5078] setpgid(0, 0) = 0
[pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5078] write(3, "1000", 4) = 4
[pid 5078] close(3) = 0
[pid 5078] memfd_create("syzkaller", 0) = 3
[pid 5078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5078] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5078] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5078] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5078] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5078] ioctl(4, LOOP_CLR_FD) = 0
[pid 5078] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5078] close(4) = 0
[pid 5078] close(3) = 0
[pid 5078] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5078] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5078] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5078] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5078] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5078] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5078] sendfile(4, 3, NULL, 131071) = 131071
[pid 5078] exit_group(0) = ?
[pid 5078] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=23 /* 0.23 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=0x5555563e15d0) = 5079
./strace-static-x86_64: Process 5079 attached
[pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5079] setpgid(0, 0) = 0
[pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5079] write(3, "1000", 4) = 4
[pid 5079] close(3) = 0
[pid 5079] memfd_create("syzkaller", 0) = 3
[pid 5079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5079] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5079] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5079] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5079] ioctl(4, LOOP_CLR_FD) = 0
[pid 5079] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5079] close(4) = 0
[pid 5079] close(3) = 0
[pid 5079] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5079] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5079] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5079] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5079] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5079] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5079] sendfile(4, 3, NULL, 131071) = 131071
[pid 5079] exit_group(0) = ?
[pid 5079] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=25 /* 0.25 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=0x5555563e15d0) = 5080
./strace-static-x86_64: Process 5080 attached
[pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5080] setpgid(0, 0) = 0
[pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5080] write(3, "1000", 4) = 4
[pid 5080] close(3) = 0
[pid 5080] memfd_create("syzkaller", 0) = 3
[pid 5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5080] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5080] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5080] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5080] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5080] ioctl(4, LOOP_CLR_FD) = 0
[pid 5080] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5080] close(4) = 0
[pid 5080] close(3) = 0
[pid 5080] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5080] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5080] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5080] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5080] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5080] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5080] sendfile(4, 3, NULL, 131071) = 131071
[pid 5080] exit_group(0) = ?
[pid 5080] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=21 /* 0.21 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=0x5555563e15d0) = 5081
./strace-static-x86_64: Process 5081 attached
[pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5081] setpgid(0, 0) = 0
[pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5081] write(3, "1000", 4) = 4
[pid 5081] close(3) = 0
[pid 5081] memfd_create("syzkaller", 0) = 3
[pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5081] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5081] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5081] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5081] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5081] ioctl(4, LOOP_CLR_FD) = 0
[pid 5081] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5081] close(4) = 0
[pid 5081] close(3) = 0
[pid 5081] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5081] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5081] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5081] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5081] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5081] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5081] sendfile(4, 3, NULL, 131071) = 131071
[pid 5081] exit_group(0) = ?
[pid 5081] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=22 /* 0.22 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 5082 attached
, child_tidptr=0x5555563e15d0) = 5082
[pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5082] setpgid(0, 0) = 0
[pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5082] write(3, "1000", 4) = 4
[pid 5082] close(3) = 0
[pid 5082] memfd_create("syzkaller", 0) = 3
[pid 5082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5082] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5082] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5082] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5082] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5082] ioctl(4, LOOP_CLR_FD) = 0
[pid 5082] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5082] close(4) = 0
[pid 5082] close(3) = 0
[pid 5082] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5082] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5082] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5082] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5082] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5082] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5082] sendfile(4, 3, NULL, 131071) = 131071
[pid 5082] exit_group(0) = ?
[pid 5082] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=21 /* 0.21 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=0x5555563e15d0) = 5083
./strace-static-x86_64: Process 5083 attached
[pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5083] setpgid(0, 0) = 0
[pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5083] write(3, "1000", 4) = 4
[pid 5083] close(3) = 0
[pid 5083] memfd_create("syzkaller", 0) = 3
[pid 5083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5083] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5083] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5083] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5083] ioctl(4, LOOP_CLR_FD) = 0
[pid 5083] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5083] close(4) = 0
[pid 5083] close(3) = 0
[pid 5083] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5083] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5083] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5083] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5083] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5083] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5083] sendfile(4, 3, NULL, 131071) = 131071
[pid 5083] exit_group(0) = ?
[pid 5083] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=26 /* 0.26 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=0x5555563e15d0) = 5084
./strace-static-x86_64: Process 5084 attached
[pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5084] setpgid(0, 0) = 0
[pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5084] write(3, "1000", 4) = 4
[pid 5084] close(3) = 0
[pid 5084] memfd_create("syzkaller", 0) = 3
[pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5084] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5084] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5084] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5084] ioctl(4, LOOP_CLR_FD) = 0
[pid 5084] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5084] close(4) = 0
[pid 5084] close(3) = 0
[pid 5084] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5084] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5084] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5084] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5084] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5084] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5084] sendfile(4, 3, NULL, 131071) = 131071
[pid 5084] exit_group(0) = ?
[pid 5084] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5085
./strace-static-x86_64: Process 5085 attached
[pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5085] setpgid(0, 0) = 0
[pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5085] write(3, "1000", 4) = 4
[pid 5085] close(3) = 0
[pid 5085] memfd_create("syzkaller", 0) = 3
[pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5085] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5085] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5085] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5085] ioctl(4, LOOP_CLR_FD) = 0
[pid 5085] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5085] close(4) = 0
[pid 5085] close(3) = 0
[pid 5085] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5085] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5085] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5085] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5085] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5085] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5085] sendfile(4, 3, NULL, 131071) = 131071
[pid 5085] exit_group(0) = ?
[pid 5085] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=23 /* 0.23 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=0x5555563e15d0) = 5086
./strace-static-x86_64: Process 5086 attached
[pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5086] setpgid(0, 0) = 0
[pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5086] write(3, "1000", 4) = 4
[pid 5086] close(3) = 0
[pid 5086] memfd_create("syzkaller", 0) = 3
[pid 5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5086] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5086] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5086] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5086] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5086] ioctl(4, LOOP_CLR_FD) = 0
[pid 5086] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5086] close(4) = 0
[pid 5086] close(3) = 0
[pid 5086] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5086] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5086] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5086] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5086] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5086] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5086] sendfile(4, 3, NULL, 131071) = 131071
[pid 5086] exit_group(0) = ?
[pid 5086] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5087
./strace-static-x86_64: Process 5087 attached
[pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5087] setpgid(0, 0) = 0
[pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5087] write(3, "1000", 4) = 4
[pid 5087] close(3) = 0
[pid 5087] memfd_create("syzkaller", 0) = 3
[pid 5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5087] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5087] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5087] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5087] ioctl(4, LOOP_CLR_FD) = 0
[pid 5087] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5087] close(4) = 0
[pid 5087] close(3) = 0
[pid 5087] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5087] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5087] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5087] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5087] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5087] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5087] sendfile(4, 3, NULL, 131071) = 131071
[pid 5087] exit_group(0) = ?
[pid 5087] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=19 /* 0.19 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 5088 attached
, child_tidptr=0x5555563e15d0) = 5088
[pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5088] setpgid(0, 0) = 0
[pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5088] write(3, "1000", 4) = 4
[pid 5088] close(3) = 0
[pid 5088] memfd_create("syzkaller", 0) = 3
[pid 5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5088] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5088] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5088] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5088] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5088] ioctl(4, LOOP_CLR_FD) = 0
[pid 5088] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5088] close(4) = 0
[pid 5088] close(3) = 0
[pid 5088] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5088] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5088] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5088] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5088] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5088] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5088] sendfile(4, 3, NULL, 131071) = 131071
[pid 5088] exit_group(0) = ?
[pid 5088] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=20 /* 0.20 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=0x5555563e15d0) = 5089
./strace-static-x86_64: Process 5089 attached
[pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5089] setpgid(0, 0) = 0
[pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5089] write(3, "1000", 4) = 4
[pid 5089] close(3) = 0
[pid 5089] memfd_create("syzkaller", 0) = 3
[pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5089] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5089] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5089] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5089] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5089] ioctl(4, LOOP_CLR_FD) = 0
[pid 5089] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5089] close(4) = 0
[pid 5089] close(3) = 0
[pid 5089] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5089] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5089] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5089] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5089] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5089] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5089] sendfile(4, 3, NULL, 131071) = 131071
[pid 5089] exit_group(0) = ?
[pid 5089] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=20 /* 0.20 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=0x5555563e15d0) = 5090
./strace-static-x86_64: Process 5090 attached
[pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5090] setpgid(0, 0) = 0
[pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5090] write(3, "1000", 4) = 4
[pid 5090] close(3) = 0
[pid 5090] memfd_create("syzkaller", 0) = 3
[pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5090] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5090] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5090] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5090] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5090] ioctl(4, LOOP_CLR_FD) = 0
[pid 5090] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5090] close(4) = 0
[pid 5090] close(3) = 0
[pid 5090] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5090] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5090] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5090] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5090] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5090] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5090] sendfile(4, 3, NULL, 131071) = 131071
[pid 5090] exit_group(0) = ?
[pid 5090] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=25 /* 0.25 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=0x5555563e15d0) = 5091
./strace-static-x86_64: Process 5091 attached
[pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5091] setpgid(0, 0) = 0
[pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5091] write(3, "1000", 4) = 4
[pid 5091] close(3) = 0
[pid 5091] memfd_create("syzkaller", 0) = 3
[pid 5091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5091] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5091] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5091] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5091] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5091] ioctl(4, LOOP_CLR_FD) = 0
[pid 5091] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5091] close(4) = 0
[pid 5091] close(3) = 0
[pid 5091] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5091] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5091] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5091] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5091] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5091] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5091] sendfile(4, 3, NULL, 131071) = 131071
[pid 5091] exit_group(0) = ?
[pid 5091] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 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=0x5555563e15d0) = 5092
./strace-static-x86_64: Process 5092 attached
[pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5092] setpgid(0, 0) = 0
[pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5092] write(3, "1000", 4) = 4
[pid 5092] close(3) = 0
[pid 5092] memfd_create("syzkaller", 0) = 3
[pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5092] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5092] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5092] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5092] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5092] ioctl(4, LOOP_CLR_FD) = 0
[pid 5092] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5092] close(4) = 0
[pid 5092] close(3) = 0
[pid 5092] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5092] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5092] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5092] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5092] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5092] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5092] sendfile(4, 3, NULL, 131071) = 131071
[pid 5092] exit_group(0) = ?
[pid 5092] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=25 /* 0.25 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=0x5555563e15d0) = 5093
./strace-static-x86_64: Process 5093 attached
[pid 5093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5093] setpgid(0, 0) = 0
[pid 5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5093] write(3, "1000", 4) = 4
[pid 5093] close(3) = 0
[pid 5093] memfd_create("syzkaller", 0) = 3
[pid 5093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5093] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5093] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5093] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5093] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5093] ioctl(4, LOOP_CLR_FD) = 0
[pid 5093] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5093] close(4) = 0
[pid 5093] close(3) = 0
[pid 5093] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5093] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5093] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5093] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5093] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5093] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5093] sendfile(4, 3, NULL, 131071) = 131071
[pid 5093] exit_group(0) = ?
[pid 5093] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5094
./strace-static-x86_64: Process 5094 attached
[pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5094] setpgid(0, 0) = 0
[pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5094] write(3, "1000", 4) = 4
[pid 5094] close(3) = 0
[pid 5094] memfd_create("syzkaller", 0) = 3
[pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5094] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5094] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5094] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5094] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5094] ioctl(4, LOOP_CLR_FD) = 0
[pid 5094] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5094] close(4) = 0
[pid 5094] close(3) = 0
[pid 5094] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5094] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5094] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5094] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5094] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5094] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5094] sendfile(4, 3, NULL, 131071) = 131071
[pid 5094] exit_group(0) = ?
[pid 5094] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=21 /* 0.21 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=0x5555563e15d0) = 5095
./strace-static-x86_64: Process 5095 attached
[pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5095] setpgid(0, 0) = 0
[pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5095] write(3, "1000", 4) = 4
[pid 5095] close(3) = 0
[pid 5095] memfd_create("syzkaller", 0) = 3
[pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5095] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5095] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5095] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5095] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5095] ioctl(4, LOOP_CLR_FD) = 0
[pid 5095] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5095] close(4) = 0
[pid 5095] close(3) = 0
[pid 5095] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5095] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5095] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5095] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5095] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5095] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5095] sendfile(4, 3, NULL, 131071) = 131071
[pid 5095] exit_group(0) = ?
[pid 5095] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=26 /* 0.26 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=0x5555563e15d0) = 5096
./strace-static-x86_64: Process 5096 attached
[pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5096] setpgid(0, 0) = 0
[pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5096] write(3, "1000", 4) = 4
[pid 5096] close(3) = 0
[pid 5096] memfd_create("syzkaller", 0) = 3
[pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5096] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5096] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5096] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5096] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5096] ioctl(4, LOOP_CLR_FD) = 0
[pid 5096] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5096] close(4) = 0
[pid 5096] close(3) = 0
[pid 5096] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5096] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5096] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5096] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5096] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5096] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5096] sendfile(4, 3, NULL, 131071) = 131071
[pid 5096] exit_group(0) = ?
[pid 5096] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=20 /* 0.20 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=0x5555563e15d0) = 5097
./strace-static-x86_64: Process 5097 attached
[pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5097] setpgid(0, 0) = 0
[pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5097] write(3, "1000", 4) = 4
[pid 5097] close(3) = 0
[pid 5097] memfd_create("syzkaller", 0) = 3
[pid 5097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5097] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5097] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5097] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5097] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5097] ioctl(4, LOOP_CLR_FD) = 0
[pid 5097] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5097] close(4) = 0
[pid 5097] close(3) = 0
[pid 5097] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5097] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5097] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5097] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5097] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5097] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5097] sendfile(4, 3, NULL, 131071) = 131071
[pid 5097] exit_group(0) = ?
[pid 5097] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=25 /* 0.25 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=0x5555563e15d0) = 5098
./strace-static-x86_64: Process 5098 attached
[pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5098] setpgid(0, 0) = 0
[pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5098] write(3, "1000", 4) = 4
[pid 5098] close(3) = 0
[pid 5098] memfd_create("syzkaller", 0) = 3
[pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5098] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5098] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5098] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5098] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5098] ioctl(4, LOOP_CLR_FD) = 0
[pid 5098] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5098] close(4) = 0
[pid 5098] close(3) = 0
[pid 5098] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5098] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5098] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5098] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5098] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5098] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5098] sendfile(4, 3, NULL, 131071) = 131071
[pid 5098] exit_group(0) = ?
[pid 5098] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=20 /* 0.20 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=0x5555563e15d0) = 5099
./strace-static-x86_64: Process 5099 attached
[pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5099] setpgid(0, 0) = 0
[pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5099] write(3, "1000", 4) = 4
[pid 5099] close(3) = 0
[pid 5099] memfd_create("syzkaller", 0) = 3
[pid 5099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5099] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5099] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5099] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5099] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5099] ioctl(4, LOOP_CLR_FD) = 0
[pid 5099] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5099] close(4) = 0
[pid 5099] close(3) = 0
[pid 5099] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5099] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5099] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5099] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5099] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5099] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5099] sendfile(4, 3, NULL, 131071) = 131071
[pid 5099] exit_group(0) = ?
[pid 5099] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=25 /* 0.25 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=0x5555563e15d0) = 5100
./strace-static-x86_64: Process 5100 attached
[pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5100] setpgid(0, 0) = 0
[pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5100] write(3, "1000", 4) = 4
[pid 5100] close(3) = 0
[pid 5100] memfd_create("syzkaller", 0) = 3
[pid 5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5100] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5100] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5100] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5100] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5100] ioctl(4, LOOP_CLR_FD) = 0
[pid 5100] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5100] close(4) = 0
[pid 5100] close(3) = 0
[pid 5100] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5100] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5100] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5100] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5100] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5100] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5100] sendfile(4, 3, NULL, 131071) = 131071
[pid 5100] exit_group(0) = ?
[pid 5100] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=23 /* 0.23 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=0x5555563e15d0) = 5101
./strace-static-x86_64: Process 5101 attached
[pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5101] setpgid(0, 0) = 0
[pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5101] write(3, "1000", 4) = 4
[pid 5101] close(3) = 0
[pid 5101] memfd_create("syzkaller", 0) = 3
[pid 5101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5101] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5101] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5101] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5101] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5101] ioctl(4, LOOP_CLR_FD) = 0
[pid 5101] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5101] close(4) = 0
[pid 5101] close(3) = 0
[pid 5101] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5101] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5101] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5101] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5101] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5101] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5101] sendfile(4, 3, NULL, 131071) = 131071
[pid 5101] exit_group(0) = ?
[pid 5101] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=21 /* 0.21 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=0x5555563e15d0) = 5102
./strace-static-x86_64: Process 5102 attached
[pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5102] setpgid(0, 0) = 0
[pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5102] write(3, "1000", 4) = 4
[pid 5102] close(3) = 0
[pid 5102] memfd_create("syzkaller", 0) = 3
[pid 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5102] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5102] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5102] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5102] ioctl(4, LOOP_CLR_FD) = 0
[pid 5102] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5102] close(4) = 0
[pid 5102] close(3) = 0
[pid 5102] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5102] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5102] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5102] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5102] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5102] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5102] sendfile(4, 3, NULL, 131071) = 131071
[pid 5102] exit_group(0) = ?
[pid 5102] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5103
./strace-static-x86_64: Process 5103 attached
[pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5103] setpgid(0, 0) = 0
[pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5103] write(3, "1000", 4) = 4
[pid 5103] close(3) = 0
[pid 5103] memfd_create("syzkaller", 0) = 3
[pid 5103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5103] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5103] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5103] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5103] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5103] ioctl(4, LOOP_CLR_FD) = 0
[pid 5103] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5103] close(4) = 0
[pid 5103] close(3) = 0
[pid 5103] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5103] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5103] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5103] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5103] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5103] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5103] sendfile(4, 3, NULL, 131071) = 131071
[pid 5103] exit_group(0) = ?
[pid 5103] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=25 /* 0.25 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=0x5555563e15d0) = 5104
./strace-static-x86_64: Process 5104 attached
[pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5104] setpgid(0, 0) = 0
[pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5104] write(3, "1000", 4) = 4
[pid 5104] close(3) = 0
[pid 5104] memfd_create("syzkaller", 0) = 3
[pid 5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5104] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5104] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5104] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5104] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5104] ioctl(4, LOOP_CLR_FD) = 0
[pid 5104] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5104] close(4) = 0
[pid 5104] close(3) = 0
[pid 5104] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5104] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5104] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5104] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5104] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5104] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5104] sendfile(4, 3, NULL, 131071) = 131071
[pid 5104] exit_group(0) = ?
[pid 5104] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5105
./strace-static-x86_64: Process 5105 attached
[pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5105] setpgid(0, 0) = 0
[pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5105] write(3, "1000", 4) = 4
[pid 5105] close(3) = 0
[pid 5105] memfd_create("syzkaller", 0) = 3
[pid 5105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[ 81.419827][ T7] cfg80211: failed to load regulatory.db
[pid 5105] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5105] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5105] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5105] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5105] ioctl(4, LOOP_CLR_FD) = 0
[pid 5105] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5105] close(4) = 0
[pid 5105] close(3) = 0
[pid 5105] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5105] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5105] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5105] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5105] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5105] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5105] sendfile(4, 3, NULL, 131071) = 131071
[pid 5105] exit_group(0) = ?
[pid 5105] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=24 /* 0.24 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=0x5555563e15d0) = 5106
./strace-static-x86_64: Process 5106 attached
[pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5106] setpgid(0, 0) = 0
[pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5106] write(3, "1000", 4) = 4
[pid 5106] close(3) = 0
[pid 5106] memfd_create("syzkaller", 0) = 3
[pid 5106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5106] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5106] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5106] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5106] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5106] ioctl(4, LOOP_CLR_FD) = 0
[pid 5106] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5106] close(4) = 0
[pid 5106] close(3) = 0
[pid 5106] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5106] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5106] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5106] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5106] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5106] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5106] sendfile(4, 3, NULL, 131071) = 131071
[pid 5106] exit_group(0) = ?
[pid 5106] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=18 /* 0.18 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=0x5555563e15d0) = 5107
./strace-static-x86_64: Process 5107 attached
[pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5107] setpgid(0, 0) = 0
[pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5107] write(3, "1000", 4) = 4
[pid 5107] close(3) = 0
[pid 5107] memfd_create("syzkaller", 0) = 3
[pid 5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5107] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5107] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5107] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5107] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5107] ioctl(4, LOOP_CLR_FD) = 0
[pid 5107] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5107] close(4) = 0
[pid 5107] close(3) = 0
[pid 5107] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5107] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5107] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5107] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5107] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5107] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5107] sendfile(4, 3, NULL, 131071) = 131071
[pid 5107] exit_group(0) = ?
[pid 5107] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=23 /* 0.23 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=0x5555563e15d0) = 5108
./strace-static-x86_64: Process 5108 attached
[pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5108] setpgid(0, 0) = 0
[pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5108] write(3, "1000", 4) = 4
[pid 5108] close(3) = 0
[pid 5108] memfd_create("syzkaller", 0) = 3
[pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5108] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5108] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5108] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5108] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5108] ioctl(4, LOOP_CLR_FD) = 0
[pid 5108] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5108] close(4) = 0
[pid 5108] close(3) = 0
[pid 5108] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5108] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5108] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5108] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5108] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5108] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5108] sendfile(4, 3, NULL, 131071) = 131071
[pid 5108] exit_group(0) = ?
[pid 5108] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 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=0x5555563e15d0) = 5109
./strace-static-x86_64: Process 5109 attached
[pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5109] setpgid(0, 0) = 0
[pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5109] write(3, "1000", 4) = 4
[pid 5109] close(3) = 0
[pid 5109] memfd_create("syzkaller", 0) = 3
[pid 5109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5109] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5109] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5109] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5109] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5109] ioctl(4, LOOP_CLR_FD) = 0
[pid 5109] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5109] close(4) = 0
[pid 5109] close(3) = 0
[pid 5109] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5109] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5109] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5109] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5109] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5109] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5109] sendfile(4, 3, NULL, 131071) = 131071
[pid 5109] exit_group(0) = ?
[pid 5109] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=21 /* 0.21 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=0x5555563e15d0) = 5110
./strace-static-x86_64: Process 5110 attached
[pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5110] setpgid(0, 0) = 0
[pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5110] write(3, "1000", 4) = 4
[pid 5110] close(3) = 0
[pid 5110] memfd_create("syzkaller", 0) = 3
[pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5110] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5110] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5110] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5110] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5110] ioctl(4, LOOP_CLR_FD) = 0
[pid 5110] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5110] close(4) = 0
[pid 5110] close(3) = 0
[pid 5110] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5110] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5110] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5110] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5110] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5110] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5110] sendfile(4, 3, NULL, 131071) = 131071
[pid 5110] exit_group(0) = ?
[pid 5110] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=24 /* 0.24 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=0x5555563e15d0) = 5111
./strace-static-x86_64: Process 5111 attached
[pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5111] setpgid(0, 0) = 0
[pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5111] write(3, "1000", 4) = 4
[pid 5111] close(3) = 0
[pid 5111] memfd_create("syzkaller", 0) = 3
[pid 5111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5111] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5111] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5111] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5111] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5111] ioctl(4, LOOP_CLR_FD) = 0
[pid 5111] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5111] close(4) = 0
[pid 5111] close(3) = 0
[pid 5111] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5111] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5111] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5111] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5111] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5111] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5111] sendfile(4, 3, NULL, 131071) = 131071
[pid 5111] exit_group(0) = ?
[pid 5111] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5112
./strace-static-x86_64: Process 5112 attached
[pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5112] setpgid(0, 0) = 0
[pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5112] write(3, "1000", 4) = 4
[pid 5112] close(3) = 0
[pid 5112] memfd_create("syzkaller", 0) = 3
[pid 5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5112] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5112] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5112] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5112] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5112] ioctl(4, LOOP_CLR_FD) = 0
[pid 5112] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5112] close(4) = 0
[pid 5112] close(3) = 0
[pid 5112] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5112] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5112] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5112] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5112] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5112] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5112] sendfile(4, 3, NULL, 131071) = 131071
[pid 5112] exit_group(0) = ?
[pid 5112] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=21 /* 0.21 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=0x5555563e15d0) = 5113
./strace-static-x86_64: Process 5113 attached
[pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5113] setpgid(0, 0) = 0
[pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5113] write(3, "1000", 4) = 4
[pid 5113] close(3) = 0
[pid 5113] memfd_create("syzkaller", 0) = 3
[pid 5113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5113] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5113] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5113] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5113] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5113] ioctl(4, LOOP_CLR_FD) = 0
[pid 5113] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5113] close(4) = 0
[pid 5113] close(3) = 0
[pid 5113] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5113] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5113] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5113] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5113] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5113] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5113] sendfile(4, 3, NULL, 131071) = 131071
[pid 5113] exit_group(0) = ?
[pid 5113] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=20 /* 0.20 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=0x5555563e15d0) = 5114
./strace-static-x86_64: Process 5114 attached
[pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5114] setpgid(0, 0) = 0
[pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5114] write(3, "1000", 4) = 4
[pid 5114] close(3) = 0
[pid 5114] memfd_create("syzkaller", 0) = 3
[pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5114] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5114] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5114] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5114] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5114] ioctl(4, LOOP_CLR_FD) = 0
[pid 5114] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5114] close(4) = 0
[pid 5114] close(3) = 0
[pid 5114] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5114] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5114] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5114] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5114] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5114] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5114] sendfile(4, 3, NULL, 131071) = 131071
[pid 5114] exit_group(0) = ?
[pid 5114] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=17 /* 0.17 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=0x5555563e15d0) = 5115
./strace-static-x86_64: Process 5115 attached
[pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5115] setpgid(0, 0) = 0
[pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5115] write(3, "1000", 4) = 4
[pid 5115] close(3) = 0
[pid 5115] memfd_create("syzkaller", 0) = 3
[pid 5115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5115] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5115] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5115] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5115] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5115] ioctl(4, LOOP_CLR_FD) = 0
[pid 5115] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5115] close(4) = 0
[pid 5115] close(3) = 0
[pid 5115] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5115] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5115] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5115] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5115] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5115] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5115] sendfile(4, 3, NULL, 131071) = 131071
[pid 5115] exit_group(0) = ?
[pid 5115] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5116
./strace-static-x86_64: Process 5116 attached
[pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5116] setpgid(0, 0) = 0
[pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5116] write(3, "1000", 4) = 4
[pid 5116] close(3) = 0
[pid 5116] memfd_create("syzkaller", 0) = 3
[pid 5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5116] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5116] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5116] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5116] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5116] ioctl(4, LOOP_CLR_FD) = 0
[pid 5116] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5116] close(4) = 0
[pid 5116] close(3) = 0
[pid 5116] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5116] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5116] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5116] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5116] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5116] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5116] sendfile(4, 3, NULL, 131071) = 131071
[pid 5116] exit_group(0) = ?
[pid 5116] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=23 /* 0.23 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=0x5555563e15d0) = 5117
./strace-static-x86_64: Process 5117 attached
[pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5117] setpgid(0, 0) = 0
[pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5117] write(3, "1000", 4) = 4
[pid 5117] close(3) = 0
[pid 5117] memfd_create("syzkaller", 0) = 3
[pid 5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5117] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5117] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5117] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5117] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5117] ioctl(4, LOOP_CLR_FD) = 0
[pid 5117] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5117] close(4) = 0
[pid 5117] close(3) = 0
[pid 5117] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5117] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5117] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5117] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5117] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5117] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5117] sendfile(4, 3, NULL, 131071) = 131071
[pid 5117] exit_group(0) = ?
[pid 5117] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=22 /* 0.22 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 5118 attached
, child_tidptr=0x5555563e15d0) = 5118
[pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5118] setpgid(0, 0) = 0
[pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5118] write(3, "1000", 4) = 4
[pid 5118] close(3) = 0
[pid 5118] memfd_create("syzkaller", 0) = 3
[pid 5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5118] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5118] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5118] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5118] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5118] ioctl(4, LOOP_CLR_FD) = 0
[pid 5118] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5118] close(4) = 0
[pid 5118] close(3) = 0
[pid 5118] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5118] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5118] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5118] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5118] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5118] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5118] sendfile(4, 3, NULL, 131071) = 131071
[pid 5118] exit_group(0) = ?
[pid 5118] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=23 /* 0.23 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=0x5555563e15d0) = 5119
./strace-static-x86_64: Process 5119 attached
[pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5119] setpgid(0, 0) = 0
[pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5119] write(3, "1000", 4) = 4
[pid 5119] close(3) = 0
[pid 5119] memfd_create("syzkaller", 0) = 3
[pid 5119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5119] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5119] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5119] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5119] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5119] ioctl(4, LOOP_CLR_FD) = 0
[pid 5119] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5119] close(4) = 0
[pid 5119] close(3) = 0
[pid 5119] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5119] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5119] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5119] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5119] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5119] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5119] sendfile(4, 3, NULL, 131071) = 131071
[pid 5119] exit_group(0) = ?
[pid 5119] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5120
./strace-static-x86_64: Process 5120 attached
[pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5120] setpgid(0, 0) = 0
[pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5120] write(3, "1000", 4) = 4
[pid 5120] close(3) = 0
[pid 5120] memfd_create("syzkaller", 0) = 3
[pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5120] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5120] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5120] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5120] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5120] ioctl(4, LOOP_CLR_FD) = 0
[pid 5120] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5120] close(4) = 0
[pid 5120] close(3) = 0
[pid 5120] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5120] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5120] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5120] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5120] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5120] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5120] sendfile(4, 3, NULL, 131071) = 131071
[pid 5120] exit_group(0) = ?
[pid 5120] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=23 /* 0.23 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=0x5555563e15d0) = 5121
./strace-static-x86_64: Process 5121 attached
[pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5121] setpgid(0, 0) = 0
[pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5121] write(3, "1000", 4) = 4
[pid 5121] close(3) = 0
[pid 5121] memfd_create("syzkaller", 0) = 3
[pid 5121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5121] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5121] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5121] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5121] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5121] ioctl(4, LOOP_CLR_FD) = 0
[pid 5121] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5121] close(4) = 0
[pid 5121] close(3) = 0
[pid 5121] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5121] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5121] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5121] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5121] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5121] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5121] sendfile(4, 3, NULL, 131071) = 131071
[pid 5121] exit_group(0) = ?
[pid 5121] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=19 /* 0.19 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=0x5555563e15d0) = 5122
./strace-static-x86_64: Process 5122 attached
[pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5122] setpgid(0, 0) = 0
[pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5122] write(3, "1000", 4) = 4
[pid 5122] close(3) = 0
[pid 5122] memfd_create("syzkaller", 0) = 3
[pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5122] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5122] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5122] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5122] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5122] ioctl(4, LOOP_CLR_FD) = 0
[pid 5122] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5122] close(4) = 0
[pid 5122] close(3) = 0
[pid 5122] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5122] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5122] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5122] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5122] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5122] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5122] sendfile(4, 3, NULL, 131071) = 131071
[pid 5122] exit_group(0) = ?
[pid 5122] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=20 /* 0.20 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 5123 attached
, child_tidptr=0x5555563e15d0) = 5123
[pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5123] setpgid(0, 0) = 0
[pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5123] write(3, "1000", 4) = 4
[pid 5123] close(3) = 0
[pid 5123] memfd_create("syzkaller", 0) = 3
[pid 5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5123] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5123] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5123] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5123] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5123] ioctl(4, LOOP_CLR_FD) = 0
[pid 5123] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5123] close(4) = 0
[pid 5123] close(3) = 0
[pid 5123] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5123] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5123] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5123] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5123] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5123] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5123] sendfile(4, 3, NULL, 131071) = 131071
[pid 5123] exit_group(0) = ?
[pid 5123] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=20 /* 0.20 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=0x5555563e15d0) = 5124
./strace-static-x86_64: Process 5124 attached
[pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5124] setpgid(0, 0) = 0
[pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5124] write(3, "1000", 4) = 4
[pid 5124] close(3) = 0
[pid 5124] memfd_create("syzkaller", 0) = 3
[pid 5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5124] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5124] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5124] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5124] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5124] ioctl(4, LOOP_CLR_FD) = 0
[pid 5124] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5124] close(4) = 0
[pid 5124] close(3) = 0
[pid 5124] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5124] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5124] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5124] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5124] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5124] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5124] sendfile(4, 3, NULL, 131071) = 131071
[pid 5124] exit_group(0) = ?
[pid 5124] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=20 /* 0.20 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=0x5555563e15d0) = 5125
./strace-static-x86_64: Process 5125 attached
[pid 5125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5125] setpgid(0, 0) = 0
[pid 5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5125] write(3, "1000", 4) = 4
[pid 5125] close(3) = 0
[pid 5125] memfd_create("syzkaller", 0) = 3
[pid 5125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5125] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5125] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5125] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5125] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5125] ioctl(4, LOOP_CLR_FD) = 0
[pid 5125] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5125] close(4) = 0
[pid 5125] close(3) = 0
[pid 5125] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5125] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5125] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5125] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5125] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5125] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5125] sendfile(4, 3, NULL, 131071) = 131071
[pid 5125] exit_group(0) = ?
[pid 5125] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5126
./strace-static-x86_64: Process 5126 attached
[pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5126] setpgid(0, 0) = 0
[pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5126] write(3, "1000", 4) = 4
[pid 5126] close(3) = 0
[pid 5126] memfd_create("syzkaller", 0) = 3
[pid 5126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5126] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5126] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5126] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5126] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5126] ioctl(4, LOOP_CLR_FD) = 0
[pid 5126] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5126] close(4) = 0
[pid 5126] close(3) = 0
[pid 5126] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5126] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5126] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5126] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5126] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5126] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5126] sendfile(4, 3, NULL, 131071) = 131071
[pid 5126] exit_group(0) = ?
[pid 5126] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 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 5127 attached
, child_tidptr=0x5555563e15d0) = 5127
[pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5127] setpgid(0, 0) = 0
[pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5127] write(3, "1000", 4) = 4
[pid 5127] close(3) = 0
[pid 5127] memfd_create("syzkaller", 0) = 3
[pid 5127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5127] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5127] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5127] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5127] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5127] ioctl(4, LOOP_CLR_FD) = 0
[pid 5127] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5127] close(4) = 0
[pid 5127] close(3) = 0
[pid 5127] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5127] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5127] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5127] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5127] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5127] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5127] sendfile(4, 3, NULL, 131071) = 131071
[pid 5127] exit_group(0) = ?
[pid 5127] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5128
./strace-static-x86_64: Process 5128 attached
[pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5128] setpgid(0, 0) = 0
[pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5128] write(3, "1000", 4) = 4
[pid 5128] close(3) = 0
[pid 5128] memfd_create("syzkaller", 0) = 3
[pid 5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5128] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5128] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5128] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5128] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5128] ioctl(4, LOOP_CLR_FD) = 0
[pid 5128] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5128] close(4) = 0
[pid 5128] close(3) = 0
[pid 5128] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5128] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5128] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5128] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5128] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5128] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5128] sendfile(4, 3, NULL, 131071) = 131071
[pid 5128] exit_group(0) = ?
[pid 5128] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=21 /* 0.21 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=0x5555563e15d0) = 5129
./strace-static-x86_64: Process 5129 attached
[pid 5129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5129] setpgid(0, 0) = 0
[pid 5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5129] write(3, "1000", 4) = 4
[pid 5129] close(3) = 0
[pid 5129] memfd_create("syzkaller", 0) = 3
[pid 5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5129] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5129] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5129] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5129] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5129] ioctl(4, LOOP_CLR_FD) = 0
[pid 5129] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5129] close(4) = 0
[pid 5129] close(3) = 0
[pid 5129] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5129] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5129] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5129] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5129] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5129] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5129] sendfile(4, 3, NULL, 131071) = 131071
[pid 5129] exit_group(0) = ?
[pid 5129] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=24 /* 0.24 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=0x5555563e15d0) = 5130
./strace-static-x86_64: Process 5130 attached
[pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5130] setpgid(0, 0) = 0
[pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5130] write(3, "1000", 4) = 4
[pid 5130] close(3) = 0
[pid 5130] memfd_create("syzkaller", 0) = 3
[pid 5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5130] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5130] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5130] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5130] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5130] ioctl(4, LOOP_CLR_FD) = 0
[pid 5130] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5130] close(4) = 0
[pid 5130] close(3) = 0
[pid 5130] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5130] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5130] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5130] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5130] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5130] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5130] sendfile(4, 3, NULL, 131071) = 131071
[pid 5130] exit_group(0) = ?
[pid 5130] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=26 /* 0.26 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=0x5555563e15d0) = 5131
./strace-static-x86_64: Process 5131 attached
[pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5131] setpgid(0, 0) = 0
[pid 5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5131] write(3, "1000", 4) = 4
[pid 5131] close(3) = 0
[pid 5131] memfd_create("syzkaller", 0) = 3
[pid 5131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5131] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5131] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5131] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5131] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5131] ioctl(4, LOOP_CLR_FD) = 0
[pid 5131] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5131] close(4) = 0
[pid 5131] close(3) = 0
[pid 5131] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5131] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5131] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5131] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5131] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5131] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5131] sendfile(4, 3, NULL, 131071) = 131071
[pid 5131] exit_group(0) = ?
[pid 5131] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5132
./strace-static-x86_64: Process 5132 attached
[pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5132] setpgid(0, 0) = 0
[pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5132] write(3, "1000", 4) = 4
[pid 5132] close(3) = 0
[pid 5132] memfd_create("syzkaller", 0) = 3
[pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5132] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5132] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5132] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5132] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5132] ioctl(4, LOOP_CLR_FD) = 0
[pid 5132] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5132] close(4) = 0
[pid 5132] close(3) = 0
[pid 5132] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5132] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5132] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5132] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5132] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5132] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5132] sendfile(4, 3, NULL, 131071) = 131071
[pid 5132] exit_group(0) = ?
[pid 5132] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 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=0x5555563e15d0) = 5133
./strace-static-x86_64: Process 5133 attached
[pid 5133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5133] setpgid(0, 0) = 0
[pid 5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5133] write(3, "1000", 4) = 4
[pid 5133] close(3) = 0
[pid 5133] memfd_create("syzkaller", 0) = 3
[pid 5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5133] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5133] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5133] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5133] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5133] ioctl(4, LOOP_CLR_FD) = 0
[pid 5133] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5133] close(4) = 0
[pid 5133] close(3) = 0
[pid 5133] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5133] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5133] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5133] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5133] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5133] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5133] sendfile(4, 3, NULL, 131071) = 131071
[pid 5133] exit_group(0) = ?
[pid 5133] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=21 /* 0.21 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=0x5555563e15d0) = 5134
./strace-static-x86_64: Process 5134 attached
[pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5134] setpgid(0, 0) = 0
[pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5134] write(3, "1000", 4) = 4
[pid 5134] close(3) = 0
[pid 5134] memfd_create("syzkaller", 0) = 3
[pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5134] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5134] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5134] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5134] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5134] ioctl(4, LOOP_CLR_FD) = 0
[pid 5134] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5134] close(4) = 0
[pid 5134] close(3) = 0
[pid 5134] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5134] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5134] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5134] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5134] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5134] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5134] sendfile(4, 3, NULL, 131071) = 131071
[pid 5134] exit_group(0) = ?
[pid 5134] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=23 /* 0.23 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=0x5555563e15d0) = 5135
./strace-static-x86_64: Process 5135 attached
[pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5135] setpgid(0, 0) = 0
[pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5135] write(3, "1000", 4) = 4
[pid 5135] close(3) = 0
[pid 5135] memfd_create("syzkaller", 0) = 3
[pid 5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5135] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5135] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5135] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5135] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5135] ioctl(4, LOOP_CLR_FD) = 0
[pid 5135] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5135] close(4) = 0
[pid 5135] close(3) = 0
[pid 5135] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5135] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5135] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5135] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5135] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5135] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5135] sendfile(4, 3, NULL, 131071) = 131071
[pid 5135] exit_group(0) = ?
[pid 5135] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5136
./strace-static-x86_64: Process 5136 attached
[pid 5136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5136] setpgid(0, 0) = 0
[pid 5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5136] write(3, "1000", 4) = 4
[pid 5136] close(3) = 0
[pid 5136] memfd_create("syzkaller", 0) = 3
[pid 5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5136] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5136] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5136] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5136] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5136] ioctl(4, LOOP_CLR_FD) = 0
[pid 5136] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5136] close(4) = 0
[pid 5136] close(3) = 0
[pid 5136] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5136] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5136] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5136] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5136] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5136] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5136] sendfile(4, 3, NULL, 131071) = 131071
[pid 5136] exit_group(0) = ?
[pid 5136] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=24 /* 0.24 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=0x5555563e15d0) = 5137
./strace-static-x86_64: Process 5137 attached
[pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5137] setpgid(0, 0) = 0
[pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5137] write(3, "1000", 4) = 4
[pid 5137] close(3) = 0
[pid 5137] memfd_create("syzkaller", 0) = 3
[pid 5137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5137] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5137] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5137] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5137] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5137] ioctl(4, LOOP_CLR_FD) = 0
[pid 5137] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5137] close(4) = 0
[pid 5137] close(3) = 0
[pid 5137] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5137] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5137] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5137] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5137] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5137] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5137] sendfile(4, 3, NULL, 131071) = 131071
[pid 5137] exit_group(0) = ?
[pid 5137] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=24 /* 0.24 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=0x5555563e15d0) = 5138
./strace-static-x86_64: Process 5138 attached
[pid 5138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5138] setpgid(0, 0) = 0
[pid 5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5138] write(3, "1000", 4) = 4
[pid 5138] close(3) = 0
[pid 5138] memfd_create("syzkaller", 0) = 3
[pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5138] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5138] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5138] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5138] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5138] ioctl(4, LOOP_CLR_FD) = 0
[pid 5138] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5138] close(4) = 0
[pid 5138] close(3) = 0
[pid 5138] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5138] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5138] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5138] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5138] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5138] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5138] sendfile(4, 3, NULL, 131071) = 131071
[pid 5138] exit_group(0) = ?
[pid 5138] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5139
./strace-static-x86_64: Process 5139 attached
[pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5139] setpgid(0, 0) = 0
[pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5139] write(3, "1000", 4) = 4
[pid 5139] close(3) = 0
[pid 5139] memfd_create("syzkaller", 0) = 3
[pid 5139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5139] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5139] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5139] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5139] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5139] ioctl(4, LOOP_CLR_FD) = 0
[pid 5139] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5139] close(4) = 0
[pid 5139] close(3) = 0
[pid 5139] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5139] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5139] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5139] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5139] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5139] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5139] sendfile(4, 3, NULL, 131071) = 131071
[pid 5139] exit_group(0) = ?
[pid 5139] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=20 /* 0.20 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=0x5555563e15d0) = 5140
./strace-static-x86_64: Process 5140 attached
[pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5140] setpgid(0, 0) = 0
[pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5140] write(3, "1000", 4) = 4
[pid 5140] close(3) = 0
[pid 5140] memfd_create("syzkaller", 0) = 3
[pid 5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5140] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5140] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5140] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5140] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5140] ioctl(4, LOOP_CLR_FD) = 0
[pid 5140] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5140] close(4) = 0
[pid 5140] close(3) = 0
[pid 5140] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5140] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5140] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5140] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5140] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5140] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5140] sendfile(4, 3, NULL, 131071) = 131071
[pid 5140] exit_group(0) = ?
[pid 5140] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=23 /* 0.23 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=0x5555563e15d0) = 5141
./strace-static-x86_64: Process 5141 attached
[pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5141] setpgid(0, 0) = 0
[pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5141] write(3, "1000", 4) = 4
[pid 5141] close(3) = 0
[pid 5141] memfd_create("syzkaller", 0) = 3
[pid 5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5141] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5141] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5141] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5141] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5141] ioctl(4, LOOP_CLR_FD) = 0
[pid 5141] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5141] close(4) = 0
[pid 5141] close(3) = 0
[pid 5141] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5141] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5141] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5141] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5141] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5141] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5141] sendfile(4, 3, NULL, 131071) = 131071
[pid 5141] exit_group(0) = ?
[pid 5141] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=20 /* 0.20 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=0x5555563e15d0) = 5142
./strace-static-x86_64: Process 5142 attached
[pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5142] setpgid(0, 0) = 0
[pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5142] write(3, "1000", 4) = 4
[pid 5142] close(3) = 0
[pid 5142] memfd_create("syzkaller", 0) = 3
[pid 5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5142] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5142] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5142] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5142] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5142] ioctl(4, LOOP_CLR_FD) = 0
[pid 5142] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5142] close(4) = 0
[pid 5142] close(3) = 0
[pid 5142] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5142] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5142] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5142] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5142] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5142] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5142] sendfile(4, 3, NULL, 131071) = 131071
[pid 5142] exit_group(0) = ?
[pid 5142] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5143
./strace-static-x86_64: Process 5143 attached
[pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5143] setpgid(0, 0) = 0
[pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5143] write(3, "1000", 4) = 4
[pid 5143] close(3) = 0
[pid 5143] memfd_create("syzkaller", 0) = 3
[pid 5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5143] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5143] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5143] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5143] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5143] ioctl(4, LOOP_CLR_FD) = 0
[pid 5143] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5143] close(4) = 0
[pid 5143] close(3) = 0
[pid 5143] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5143] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5143] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5143] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5143] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5143] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5143] sendfile(4, 3, NULL, 131071) = 131071
[pid 5143] exit_group(0) = ?
[pid 5143] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=23 /* 0.23 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=0x5555563e15d0) = 5144
./strace-static-x86_64: Process 5144 attached
[pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5144] setpgid(0, 0) = 0
[pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5144] write(3, "1000", 4) = 4
[pid 5144] close(3) = 0
[pid 5144] memfd_create("syzkaller", 0) = 3
[pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5144] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5144] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5144] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5144] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5144] ioctl(4, LOOP_CLR_FD) = 0
[pid 5144] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5144] close(4) = 0
[pid 5144] close(3) = 0
[pid 5144] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5144] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5144] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5144] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5144] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5144] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5144] sendfile(4, 3, NULL, 131071) = 131071
[pid 5144] exit_group(0) = ?
[pid 5144] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5145
./strace-static-x86_64: Process 5145 attached
[pid 5145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5145] setpgid(0, 0) = 0
[pid 5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5145] write(3, "1000", 4) = 4
[pid 5145] close(3) = 0
[pid 5145] memfd_create("syzkaller", 0) = 3
[pid 5145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5145] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5145] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5145] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5145] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5145] ioctl(4, LOOP_CLR_FD) = 0
[pid 5145] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5145] close(4) = 0
[pid 5145] close(3) = 0
[pid 5145] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5145] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5145] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5145] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5145] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5145] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5145] sendfile(4, 3, NULL, 131071) = 131071
[pid 5145] exit_group(0) = ?
[pid 5145] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5145, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=21 /* 0.21 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=0x5555563e15d0) = 5146
./strace-static-x86_64: Process 5146 attached
[pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5146] setpgid(0, 0) = 0
[pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5146] write(3, "1000", 4) = 4
[pid 5146] close(3) = 0
[pid 5146] memfd_create("syzkaller", 0) = 3
[pid 5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5146] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5146] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5146] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5146] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5146] ioctl(4, LOOP_CLR_FD) = 0
[pid 5146] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5146] close(4) = 0
[pid 5146] close(3) = 0
[pid 5146] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5146] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5146] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5146] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5146] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5146] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5146] sendfile(4, 3, NULL, 131071) = 131071
[pid 5146] exit_group(0) = ?
[pid 5146] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=24 /* 0.24 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=0x5555563e15d0) = 5147
./strace-static-x86_64: Process 5147 attached
[pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5147] setpgid(0, 0) = 0
[pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5147] write(3, "1000", 4) = 4
[pid 5147] close(3) = 0
[pid 5147] memfd_create("syzkaller", 0) = 3
[pid 5147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5147] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5147] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5147] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5147] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5147] ioctl(4, LOOP_CLR_FD) = 0
[pid 5147] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5147] close(4) = 0
[pid 5147] close(3) = 0
[pid 5147] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5147] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5147] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5147] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5147] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5147] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5147] sendfile(4, 3, NULL, 131071) = 131071
[pid 5147] exit_group(0) = ?
[pid 5147] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 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=0x5555563e15d0) = 5148
./strace-static-x86_64: Process 5148 attached
[pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5148] setpgid(0, 0) = 0
[pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5148] write(3, "1000", 4) = 4
[pid 5148] close(3) = 0
[pid 5148] memfd_create("syzkaller", 0) = 3
[pid 5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5148] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5148] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5148] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5148] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5148] ioctl(4, LOOP_CLR_FD) = 0
[pid 5148] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5148] close(4) = 0
[pid 5148] close(3) = 0
[pid 5148] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5148] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5148] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5148] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5148] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5148] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5148] sendfile(4, 3, NULL, 131071) = 131071
[pid 5148] exit_group(0) = ?
[pid 5148] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=21 /* 0.21 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=0x5555563e15d0) = 5149
./strace-static-x86_64: Process 5149 attached
[pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5149] setpgid(0, 0) = 0
[pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5149] write(3, "1000", 4) = 4
[pid 5149] close(3) = 0
[pid 5149] memfd_create("syzkaller", 0) = 3
[pid 5149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5149] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5149] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5149] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5149] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5149] ioctl(4, LOOP_CLR_FD) = 0
[pid 5149] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5149] close(4) = 0
[pid 5149] close(3) = 0
[pid 5149] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5149] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5149] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5149] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5149] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5149] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5149] sendfile(4, 3, NULL, 131071) = 131071
[pid 5149] exit_group(0) = ?
[pid 5149] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=24 /* 0.24 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 5150 attached
, child_tidptr=0x5555563e15d0) = 5150
[pid 5150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5150] setpgid(0, 0) = 0
[pid 5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5150] write(3, "1000", 4) = 4
[pid 5150] close(3) = 0
[pid 5150] memfd_create("syzkaller", 0) = 3
[pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5150] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5150] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5150] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5150] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5150] ioctl(4, LOOP_CLR_FD) = 0
[pid 5150] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5150] close(4) = 0
[pid 5150] close(3) = 0
[pid 5150] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5150] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5150] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5150] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5150] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5150] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5150] sendfile(4, 3, NULL, 131071) = 131071
[pid 5150] exit_group(0) = ?
[pid 5150] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 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=0x5555563e15d0) = 5151
./strace-static-x86_64: Process 5151 attached
[pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5151] setpgid(0, 0) = 0
[pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5151] write(3, "1000", 4) = 4
[pid 5151] close(3) = 0
[pid 5151] memfd_create("syzkaller", 0) = 3
[pid 5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5151] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5151] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5151] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5151] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5151] ioctl(4, LOOP_CLR_FD) = 0
[pid 5151] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5151] close(4) = 0
[pid 5151] close(3) = 0
[pid 5151] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5151] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5151] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5151] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5151] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5151] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5151] sendfile(4, 3, NULL, 131071) = 131071
[pid 5151] exit_group(0) = ?
[pid 5151] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=23 /* 0.23 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=0x5555563e15d0) = 5152
./strace-static-x86_64: Process 5152 attached
[pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5152] setpgid(0, 0) = 0
[pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5152] write(3, "1000", 4) = 4
[pid 5152] close(3) = 0
[pid 5152] memfd_create("syzkaller", 0) = 3
[pid 5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5152] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5152] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5152] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5152] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5152] ioctl(4, LOOP_CLR_FD) = 0
[pid 5152] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5152] close(4) = 0
[pid 5152] close(3) = 0
[pid 5152] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5152] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5152] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5152] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5152] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5152] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5152] sendfile(4, 3, NULL, 131071) = 131071
[pid 5152] exit_group(0) = ?
[pid 5152] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=22 /* 0.22 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=0x5555563e15d0) = 5153
./strace-static-x86_64: Process 5153 attached
[pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5153] setpgid(0, 0) = 0
[pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5153] write(3, "1000", 4) = 4
[pid 5153] close(3) = 0
[pid 5153] memfd_create("syzkaller", 0) = 3
[pid 5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5153] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5153] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5153] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5153] ioctl(4, LOOP_CLR_FD) = 0
[pid 5153] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5153] close(4) = 0
[pid 5153] close(3) = 0
[pid 5153] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5153] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5153] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5153] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5153] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5153] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5153] sendfile(4, 3, NULL, 131071) = 131071
[pid 5153] exit_group(0) = ?
[pid 5153] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=23 /* 0.23 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=0x5555563e15d0) = 5154
./strace-static-x86_64: Process 5154 attached
[pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5154] setpgid(0, 0) = 0
[pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5154] write(3, "1000", 4) = 4
[pid 5154] close(3) = 0
[pid 5154] memfd_create("syzkaller", 0) = 3
[pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5154] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5154] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5154] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5154] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5154] ioctl(4, LOOP_CLR_FD) = 0
[pid 5154] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5154] close(4) = 0
[pid 5154] close(3) = 0
[pid 5154] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5154] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5154] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5154] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5154] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5154] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5154] sendfile(4, 3, NULL, 131071) = 131071
[pid 5154] exit_group(0) = ?
[pid 5154] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=24 /* 0.24 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=0x5555563e15d0) = 5155
./strace-static-x86_64: Process 5155 attached
[pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5155] setpgid(0, 0) = 0
[pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5155] write(3, "1000", 4) = 4
[pid 5155] close(3) = 0
[pid 5155] memfd_create("syzkaller", 0) = 3
[pid 5155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5155] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5155] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5155] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5155] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5155] ioctl(4, LOOP_CLR_FD) = 0
[pid 5155] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5155] close(4) = 0
[pid 5155] close(3) = 0
[pid 5155] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5155] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5155] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5155] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5155] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5155] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5155] sendfile(4, 3, NULL, 131071) = 131071
[pid 5155] exit_group(0) = ?
[pid 5155] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=18 /* 0.18 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=0x5555563e15d0) = 5156
./strace-static-x86_64: Process 5156 attached
[pid 5156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5156] setpgid(0, 0) = 0
[pid 5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5156] write(3, "1000", 4) = 4
[pid 5156] close(3) = 0
[pid 5156] memfd_create("syzkaller", 0) = 3
[pid 5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5156] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5156] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5156] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5156] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5156] ioctl(4, LOOP_CLR_FD) = 0
[pid 5156] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5156] close(4) = 0
[pid 5156] close(3) = 0
[pid 5156] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5156] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5156] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5156] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5156] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5156] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5156] sendfile(4, 3, NULL, 131071) = 131071
[pid 5156] exit_group(0) = ?
[pid 5156] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=25 /* 0.25 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=0x5555563e15d0) = 5157
./strace-static-x86_64: Process 5157 attached
[pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5157] setpgid(0, 0) = 0
[pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5157] write(3, "1000", 4) = 4
[pid 5157] close(3) = 0
[pid 5157] memfd_create("syzkaller", 0) = 3
[pid 5157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5157] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5157] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5157] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5157] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5157] ioctl(4, LOOP_CLR_FD) = 0
[pid 5157] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5157] close(4) = 0
[pid 5157] close(3) = 0
[pid 5157] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5157] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5157] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5157] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5157] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5157] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5157] sendfile(4, 3, NULL, 131071) = 131071
[pid 5157] exit_group(0) = ?
[pid 5157] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=21 /* 0.21 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=0x5555563e15d0) = 5158
./strace-static-x86_64: Process 5158 attached
[pid 5158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5158] setpgid(0, 0) = 0
[pid 5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5158] write(3, "1000", 4) = 4
[pid 5158] close(3) = 0
[pid 5158] memfd_create("syzkaller", 0) = 3
[pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5158] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5158] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5158] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5158] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5158] ioctl(4, LOOP_CLR_FD) = 0
[pid 5158] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5158] close(4) = 0
[pid 5158] close(3) = 0
[pid 5158] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5158] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5158] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5158] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5158] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5158] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5158] sendfile(4, 3, NULL, 131071) = 131071
[pid 5158] exit_group(0) = ?
[pid 5158] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=23 /* 0.23 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=0x5555563e15d0) = 5159
./strace-static-x86_64: Process 5159 attached
[pid 5159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5159] setpgid(0, 0) = 0
[pid 5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5159] write(3, "1000", 4) = 4
[pid 5159] close(3) = 0
[pid 5159] memfd_create("syzkaller", 0) = 3
[pid 5159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5159] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5159] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5159] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5159] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5159] ioctl(4, LOOP_CLR_FD) = 0
[pid 5159] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5159] close(4) = 0
[pid 5159] close(3) = 0
[pid 5159] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5159] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5159] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5159] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5159] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5159] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5159] sendfile(4, 3, NULL, 131071) = 131071
[pid 5159] exit_group(0) = ?
[pid 5159] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=25 /* 0.25 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=0x5555563e15d0) = 5160
./strace-static-x86_64: Process 5160 attached
[pid 5160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5160] setpgid(0, 0) = 0
[pid 5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5160] write(3, "1000", 4) = 4
[pid 5160] close(3) = 0
[pid 5160] memfd_create("syzkaller", 0) = 3
[pid 5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[pid 5160] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid 5160] munmap(0x7fea0ddf8000, 16777216) = 0
[pid 5160] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5160] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5160] ioctl(4, LOOP_CLR_FD) = 0
[pid 5160] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5160] close(4) = 0
[ 100.309754][ T105] ================================================================================
[ 100.319980][ T105] UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2856:6
[ 100.327647][ T105] index 1668573185 is out of range for type 's8[1365]' (aka 'signed char[1365]')
[ 100.337863][ T105] CPU: 1 PID: 105 Comm: jfsCommit Not tainted 6.2.0-syzkaller-10443-g8cbd92339db0 #0
[ 100.347390][ T105] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
[pid 5160] close(3) = 0
[pid 5160] open("./file0/file0", O_WRONLY|O_EXCL|O_NOCTTY|O_TRUNC|O_LARGEFILE|O_NOATIME) = -1 EISDIR (Is a directory)
[pid 5160] open("./bus", O_ACCMODE|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|O_DIRECTORY, 000) = -1 ENOTDIR (Not a directory)
[pid 5160] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5160] openat(AT_FDCWD, "./bus", O_RDONLY) = 3
[pid 5160] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 4
[pid 5160] write(4, "\x68\x74\x63\x70\x00", 5) = 5
[pid 5160] sendfile(4, 3, NULL, 131071) = 131071
[pid 5160] exit_group(0) = ?
[pid 5160] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=21 /* 0.21 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
[ 100.357577][ T105] Call Trace:
[ 100.360886][ T105]
[ 100.363852][ T105] dump_stack_lvl+0x1e7/0x2d0
[ 100.368649][ T105] ? nf_tcp_handle_invalid+0x650/0x650
[ 100.374159][ T105] ? panic+0x770/0x770
[ 100.378281][ T105] __ubsan_handle_out_of_bounds+0x11c/0x150
[ 100.384240][ T105] dbAdjTree+0x474/0x4f0
[ 100.388528][ T105] ? do_read_cache_folio+0x777/0x820
[ 100.393957][ T105] dbJoin+0x210/0x2d0
[ 100.398022][ T105] dbFreeBits+0x4eb/0xda0
[ 100.402423][ T105] dbFree+0x343/0x650
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555563e15d0) = 5161
./strace-static-x86_64: Process 5161 attached
[pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5161] setpgid(0, 0) = 0
[pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5161] write(3, "1000", 4) = 4
[pid 5161] close(3) = 0
[pid 5161] memfd_create("syzkaller", 0) = 3
[pid 5161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea0ddf8000
[ 100.406555][ T105] txFreeMap+0x798/0xd50
[ 100.410867][ T105] txUpdateMap+0x342/0x9e0
[ 100.415343][ T105] ? txCommit+0x6ba0/0x6ba0
[ 100.419911][ T105] jfs_lazycommit+0x47a/0xb70
[ 100.424648][ T105] ? txFreelock+0x580/0x580
[ 100.429215][ T105] ? do_task_dead+0xd0/0xd0
[ 100.433760][ T105] ? _raw_spin_unlock+0x40/0x40
[ 100.438671][ T105] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0
[ 100.444720][ T105] ? __kthread_parkme+0x164/0x1c0
[ 100.449797][ T105] kthread+0x270/0x300
[ 100.453911][ T105] ? txFreelock+0x580/0x580
[ 100.458483][ T105] ? kthread_blkcg+0xd0/0xd0
[ 100.463115][ T105] ret_from_fork+0x1f/0x30
[ 100.467599][ T105]
[ 100.483799][ T105] ================================================================================
[ 100.493592][ T105] Kernel panic - not syncing: UBSAN: panic_on_warn set ...
[ 100.500828][ T105] CPU: 1 PID: 105 Comm: jfsCommit Not tainted 6.2.0-syzkaller-10443-g8cbd92339db0 #0
[ 100.510422][ T105] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
[ 100.520516][ T105] Call Trace:
[ 100.523825][ T105]
[ 100.526787][ T105] dump_stack_lvl+0x1e7/0x2d0
[ 100.531518][ T105] ? nf_tcp_handle_invalid+0x650/0x650
[ 100.537106][ T105] ? vsnprintf+0x17f/0x1d80
[ 100.541648][ T105] ? panic+0x770/0x770
[ 100.545753][ T105] ? tick_nohz_tick_stopped+0x7b/0xb0
[ 100.551170][ T105] ? __irq_work_queue_local+0x122/0x180
[ 100.556772][ T105] ? vscnprintf+0x5d/0x80
[ 100.561145][ T105] panic+0x31c/0x770
[ 100.565087][ T105] ? check_panic_on_warn+0x21/0xa0
[ 100.570244][ T105] ? memcpy_page_flushcache+0x100/0x100
[ 100.575833][ T105] ? dump_stack_lvl+0x253/0x2d0
[ 100.580754][ T105] check_panic_on_warn+0x82/0xa0
[ 100.585769][ T105] __ubsan_handle_out_of_bounds+0x13c/0x150
[ 100.591723][ T105] dbAdjTree+0x474/0x4f0
[ 100.596017][ T105] ? do_read_cache_folio+0x777/0x820
[ 100.601352][ T105] dbJoin+0x210/0x2d0
[ 100.605390][ T105] dbFreeBits+0x4eb/0xda0
[ 100.609806][ T105] dbFree+0x343/0x650
[ 100.613844][ T105] txFreeMap+0x798/0xd50
[ 100.618174][ T105] txUpdateMap+0x342/0x9e0
[ 100.622648][ T105] ? txCommit+0x6ba0/0x6ba0
[ 100.627211][ T105] jfs_lazycommit+0x47a/0xb70
[ 100.631954][ T105] ? txFreelock+0x580/0x580
[ 100.636511][ T105] ? do_task_dead+0xd0/0xd0
[ 100.641050][ T105] ? _raw_spin_unlock+0x40/0x40
[ 100.645955][ T105] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0
[ 100.651998][ T105] ? __kthread_parkme+0x164/0x1c0
[ 100.657086][ T105] kthread+0x270/0x300
[ 100.661287][ T105] ? txFreelock+0x580/0x580
[ 100.665954][ T105] ? kthread_blkcg+0xd0/0xd0
[ 100.670588][ T105] ret_from_fork+0x1f/0x30
[ 100.675168][ T105]
[ 100.678281][ T105] Kernel Offset: disabled
[ 100.682703][ T105] Rebooting in 86400 seconds..