./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4036854386 <...> Warning: Permanently added '10.128.0.228' (ED25519) to the list of known hosts. execve("./syz-executor4036854386", ["./syz-executor4036854386"], 0x7fffedefba10 /* 10 vars */) = 0 brk(NULL) = 0x5555606ed000 brk(0x5555606edd00) = 0x5555606edd00 arch_prctl(ARCH_SET_FS, 0x5555606ed380) = 0 set_tid_address(0x5555606ed650) = 5075 set_robust_list(0x5555606ed660, 24) = 0 rseq(0x5555606edca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4036854386", 4096) = 28 getrandom("\x6c\x3a\xdd\xc1\x73\x3e\x15\x37", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555606edd00 brk(0x55556070ed00) = 0x55556070ed00 brk(0x55556070f000) = 0x55556070f000 mprotect(0x7fd43e83f000, 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./strace-static-x86_64: Process 5077 attached , child_tidptr=0x5555606ed650) = 5077 [pid 5077] set_robust_list(0x5555606ed660, 24) = 0 [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) = 0x7fd436200000 [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(0x7fd436200000, 138412032) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5077] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5077] close(3) = 0 [pid 5077] close(4) = 0 [pid 5077] mkdir("./file0", 0777) = 0 [pid 5077] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_LAZYTIME, "usrquota,errors=continue,gid=0x0000000000000000,discard=0x0000000000000cce,discard=0x00000000000") = 0 [pid 5077] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 85.854548][ T5077] loop0: detected capacity change from 0 to 32768 [pid 5077] chdir("./file0") = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5077] unlink("./file1") = 0 [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=24 /* 0.24 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5078 attached , child_tidptr=0x5555606ed650) = 5078 [pid 5078] set_robust_list(0x5555606ed660, 24) = 0 [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) = 0x7fd436200000 [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(0x7fd436200000, 138412032) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5078] close(3) = 0 [pid 5078] unlink("./file1") = -1 ENOENT (No such file or directory) [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=3 /* 0.03 s */, si_stime=23 /* 0.23 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5079 attached , child_tidptr=0x5555606ed650) = 5079 [pid 5079] set_robust_list(0x5555606ed660, 24) = 0 [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) = 0x7fd436200000 [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(0x7fd436200000, 138412032) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5079] close(3) = 0 [pid 5079] unlink("./file1") = -1 ENOENT (No such file or directory) [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=4 /* 0.04 s */, si_stime=23 /* 0.23 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5080 attached , child_tidptr=0x5555606ed650) = 5080 [pid 5080] set_robust_list(0x5555606ed660, 24) = 0 [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) = 0x7fd436200000 [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(0x7fd436200000, 138412032) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5080] close(3) = 0 [pid 5080] unlink("./file1") = -1 ENOENT (No such file or directory) [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=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5081 attached , child_tidptr=0x5555606ed650) = 5081 [pid 5081] set_robust_list(0x5555606ed660, 24) = 0 [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) = 0x7fd436200000 [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(0x7fd436200000, 138412032) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5081] close(3) = 0 [pid 5081] unlink("./file1") = -1 ENOENT (No such file or directory) [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=4 /* 0.04 s */, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5082 attached , child_tidptr=0x5555606ed650) = 5082 [pid 5082] set_robust_list(0x5555606ed660, 24) = 0 [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) = 0x7fd436200000 [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(0x7fd436200000, 138412032) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5082] close(3) = 0 [pid 5082] unlink("./file1") = -1 ENOENT (No such file or directory) [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=3 /* 0.03 s */, si_stime=25 /* 0.25 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555606ed650) = 5083 ./strace-static-x86_64: Process 5083 attached [pid 5083] set_robust_list(0x5555606ed660, 24) = 0 [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) = 0x7fd436200000 [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(0x7fd436200000, 138412032) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5083] close(3) = 0 [pid 5083] unlink("./file1") = -1 ENOENT (No such file or directory) [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=0, si_stime=27 /* 0.27 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5084 attached , child_tidptr=0x5555606ed650) = 5084 [pid 5084] set_robust_list(0x5555606ed660, 24) = 0 [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) = 0x7fd436200000 [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(0x7fd436200000, 138412032) = 0 [pid 5084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5084] close(3) = 0 [pid 5084] unlink("./file1") = -1 ENOENT (No such file or directory) [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=5 /* 0.05 s */, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5085 attached [pid 5085] set_robust_list(0x5555606ed660, 24) = 0 [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] <... clone resumed>, child_tidptr=0x5555606ed650) = 5085 [pid 5085] <... prctl resumed>) = 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) = 0x7fd436200000 [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(0x7fd436200000, 138412032) = 0 [pid 5085] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5085] close(3) = 0 [pid 5085] unlink("./file1") = -1 ENOENT (No such file or directory) [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=9 /* 0.09 s */, si_stime=35 /* 0.35 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5086 attached , child_tidptr=0x5555606ed650) = 5086 [pid 5086] set_robust_list(0x5555606ed660, 24) = 0 [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) = 0x7fd436200000 [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(0x7fd436200000, 138412032) = 0 [pid 5086] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5086] close(3) = 0 [pid 5086] unlink("./file1") = -1 ENOENT (No such file or directory) [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=5 /* 0.05 s */, si_stime=24 /* 0.24 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555606ed650) = 5087 ./strace-static-x86_64: Process 5087 attached [pid 5087] set_robust_list(0x5555606ed660, 24) = 0 [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) = 0x7fd436200000 [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(0x7fd436200000, 138412032) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5087] close(3) = 0 [pid 5087] unlink("./file1") = -1 ENOENT (No such file or directory) [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=2 /* 0.02 s */, si_stime=24 /* 0.24 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555606ed650) = 5088 ./strace-static-x86_64: Process 5088 attached [pid 5088] set_robust_list(0x5555606ed660, 24) = 0 [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) = 0x7fd436200000 [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(0x7fd436200000, 138412032) = 0 [pid 5088] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5088] close(3) = 0 [pid 5088] unlink("./file1") = -1 ENOENT (No such file or directory) [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=2 /* 0.02 s */, si_stime=23 /* 0.23 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5089 attached , child_tidptr=0x5555606ed650) = 5089 [pid 5089] set_robust_list(0x5555606ed660, 24) = 0 [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) = 0x7fd436200000 [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(0x7fd436200000, 138412032) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] close(3) = 0 [pid 5089] unlink("./file1") = -1 ENOENT (No such file or directory) [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=5 /* 0.05 s */, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5090 attached , child_tidptr=0x5555606ed650) = 5090 [pid 5090] set_robust_list(0x5555606ed660, 24) = 0 [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) = 0x7fd436200000 [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(0x7fd436200000, 138412032) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] close(3) = 0 [pid 5090] unlink("./file1") = -1 ENOENT (No such file or directory) [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=3 /* 0.03 s */, si_stime=24 /* 0.24 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5091 attached , child_tidptr=0x5555606ed650) = 5091 [pid 5091] set_robust_list(0x5555606ed660, 24) = 0 [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) = 0x7fd436200000 [ 90.976059][ T111] ------------[ cut here ]------------ [ 90.981802][ T111] UBSAN: array-index-out-of-bounds in fs/jfs/jfs_imap.c:886:2 [ 90.989332][ T111] index 524288 is out of range for type 'struct mutex[128]' [ 90.997083][ T111] CPU: 1 PID: 111 Comm: jfsCommit Not tainted 6.9.0-rc4-syzkaller-00173-g3cdb45594619 #0 [ 91.007123][ T111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 91.017413][ T111] Call Trace: [ 91.021104][ T111] [ 91.024068][ T111] dump_stack_lvl+0x241/0x360 [ 91.029026][ T111] ? __pfx_dump_stack_lvl+0x10/0x10 [ 91.034362][ T111] ? __pfx__printk+0x10/0x10 [ 91.039045][ T111] __ubsan_handle_out_of_bounds+0x121/0x150 [ 91.045280][ T111] diFree+0x21c3/0x2fb0 [ 91.050893][ T111] ? __pfx_diFree+0x10/0x10 [ 91.055533][ T111] ? jfs_free_zero_link+0x46e/0x6e0 [ 91.060784][ T111] ? inode_wait_for_writeback+0x224/0x290 [ 91.066602][ T111] ? __pfx_jfs_free_zero_link+0x10/0x10 [ 91.072442][ T111] ? __pfx_wake_bit_function+0x10/0x10 [ 91.077987][ T111] jfs_evict_inode+0x32d/0x440 [ 91.082793][ T111] ? __pfx_jfs_evict_inode+0x10/0x10 [ 91.088561][ T111] evict+0x2a8/0x630 [ 91.092786][ T111] txUpdateMap+0x829/0x9f0 [ 91.097273][ T111] ? __pfx_txUpdateMap+0x10/0x10 [ 91.102262][ T111] jfs_lazycommit+0x49a/0xb80 [ 91.107000][ T111] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 91.113216][ T111] ? lockdep_hardirqs_on+0x99/0x150 [ 91.118621][ T111] ? __pfx_jfs_lazycommit+0x10/0x10 [ 91.123975][ T111] ? __pfx_default_wake_function+0x10/0x10 [ 91.129973][ T111] ? __kthread_parkme+0x169/0x1d0 [ 91.135072][ T111] ? __pfx_jfs_lazycommit+0x10/0x10 [ 91.140328][ T111] kthread+0x2f0/0x390 [ 91.144453][ T111] ? __pfx_jfs_lazycommit+0x10/0x10 [ 91.149708][ T111] ? __pfx_kthread+0x10/0x10 [ 91.154348][ T111] ret_from_fork+0x4b/0x80 [ 91.158849][ T111] ? __pfx_kthread+0x10/0x10 [ 91.163582][ T111] ret_from_fork_asm+0x1a/0x30 [ 91.168610][ T111] [ 91.173386][ T111] ---[ end trace ]--- [ 91.177422][ T111] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 91.184734][ T111] CPU: 1 PID: 111 Comm: jfsCommit Not tainted 6.9.0-rc4-syzkaller-00173-g3cdb45594619 #0 [ 91.194575][ T111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 91.204724][ T111] Call Trace: [ 91.208195][ T111] [ 91.211223][ T111] dump_stack_lvl+0x241/0x360 [ 91.215954][ T111] ? __pfx_dump_stack_lvl+0x10/0x10 [ 91.221752][ T111] ? __pfx__printk+0x10/0x10 [ 91.226572][ T111] ? vprintk_emit+0x631/0x770 [ 91.231290][ T111] ? vscnprintf+0x5d/0x90 [ 91.235736][ T111] panic+0x349/0x860 [ 91.239671][ T111] ? check_panic_on_warn+0x21/0xb0 [ 91.245011][ T111] ? __pfx_panic+0x10/0x10 [ 91.249474][ T111] ? _printk+0xd5/0x120 [ 91.254086][ T111] ? __pfx__printk+0x10/0x10 [ 91.258702][ T111] check_panic_on_warn+0x86/0xb0 [ 91.263840][ T111] __ubsan_handle_out_of_bounds+0x141/0x150 [ 91.270024][ T111] diFree+0x21c3/0x2fb0 [ 91.274333][ T111] ? __pfx_diFree+0x10/0x10 [ 91.279346][ T111] ? jfs_free_zero_link+0x46e/0x6e0 [ 91.284616][ T111] ? inode_wait_for_writeback+0x224/0x290 [ 91.290614][ T111] ? __pfx_jfs_free_zero_link+0x10/0x10 [ 91.296291][ T111] ? __pfx_wake_bit_function+0x10/0x10 [ 91.301809][ T111] jfs_evict_inode+0x32d/0x440 [ 91.306694][ T111] ? __pfx_jfs_evict_inode+0x10/0x10 [ 91.312318][ T111] evict+0x2a8/0x630 [ 91.316442][ T111] txUpdateMap+0x829/0x9f0 [ 91.321703][ T111] ? __pfx_txUpdateMap+0x10/0x10 [ 91.326947][ T111] jfs_lazycommit+0x49a/0xb80 [ 91.331770][ T111] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 91.337727][ T111] ? lockdep_hardirqs_on+0x99/0x150 [ 91.342996][ T111] ? __pfx_jfs_lazycommit+0x10/0x10 [ 91.348685][ T111] ? __pfx_default_wake_function+0x10/0x10 [ 91.354539][ T111] ? __kthread_parkme+0x169/0x1d0 [ 91.359726][ T111] ? __pfx_jfs_lazycommit+0x10/0x10 [ 91.365066][ T111] kthread+0x2f0/0x390 [ 91.369179][ T111] ? __pfx_jfs_lazycommit+0x10/0x10 [ 91.374939][ T111] ? __pfx_kthread+0x10/0x10 [ 91.379560][ T111] ret_from_fork+0x4b/0x80 [ 91.384088][ T111] ? __pfx_kthread+0x10/0x10 [ 91.389131][ T111] ret_from_fork_asm+0x1a/0x30 [ 91.394021][ T111] [ 91.397461][ T111] Kernel Offset: disabled [ 91.401952][ T111] Rebooting in 86400 seconds..