ci2-upstream-fs/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-upstream-fs/syz-executor892928021 <...> Warning: Permanently added '10.128.0.226' (ED25519) to the list of known hosts. execve("ci2-upstream-fs/syz-executor892928021", ["ci2-upstream-fs/syz-executor892928021"], 0x7fffc487dbc0 /* 10 vars */) = 0 brk(NULL) = 0x555561ef9000 brk(0x555561ef9d80) = 0x555561ef9d80 arch_prctl(ARCH_SET_FS, 0x555561ef9400) = 0 set_tid_address(0x555561ef96d0) = 5625 set_robust_list(0x555561ef96e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-upstream-fs/syz-executor892928021", 4096) = 43 getrandom("\x1f\x45\xf2\xc5\x07\x27\xa8\x53", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555561ef9d80 brk(0x555561f1ad80) = 0x555561f1ad80 brk(0x555561f1b000) = 0x555561f1b000 mprotect(0x7f7240477000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555561ef96d0) = 5626 ci2-upstream-fs/strace-static-x86_64: Process 5626 attached [pid 5625] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5626] set_robust_list(0x555561ef96e0, 24 [pid 5625] openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC [pid 5626] <... set_robust_list resumed>) = 0 [pid 5625] <... openat resumed>) = 3 [pid 5626] rt_sigprocmask(SIG_SETMASK, [] [pid 5625] write(3, "10000000000", 11 [pid 5626] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5625] <... write resumed>) = 11 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "20", 2) = 2 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "1", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "0", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "0", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "1", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "100", 3) = 3 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "0", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "0", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "7 4 1 3", 7) = 7 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "1", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "1", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/sys/kernel/debug/failslab/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "Y", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "Y", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/sys/kernel/debug/fail_futex/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "Y", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/sys/kernel/debug/fail_usercopy/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "Y", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/sys/kernel/debug/fail_make_request/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "Y", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/sys/kernel/debug/fail_io_timeout/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "Y", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/sys/kernel/debug/fail_iommufd/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "Y", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "0", 1) = 1 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "5626", 4) = 4 [pid 5625] close(3) = 0 [pid 5625] kill(5626, SIGKILL) = 0 [pid 5626] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5626, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5627 attached [pid 5627] set_robust_list(0x555561ef96e0, 24 [pid 5625] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5627 [pid 5627] <... set_robust_list resumed>) = 0 [pid 5627] rt_sigprocmask(SIG_SETMASK, [] [pid 5625] rt_sigprocmask(SIG_SETMASK, [] [pid 5627] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5625] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5625] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5627] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5625] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5625] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5627] <... openat resumed>) = 3 [pid 5627] ioctl(3, LOOP_CLR_FDci2-upstream-fs/strace-static-x86_64: Process 5628 attached ) = -1 ENXIO (No such device or address) [pid 5625] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5628 [pid 5628] set_robust_list(0x555561ef96e0, 24) = 0 [pid 5625] rt_sigprocmask(SIG_SETMASK, [] [pid 5627] close(3 [pid 5625] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5628] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5625] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5627] <... close resumed>) = 0 [pid 5625] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5628] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5627] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5625] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5627] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5628] <... openat resumed>) = 3 [pid 5627] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5629 attached [pid 5628] ioctl(3, LOOP_CLR_FDci2-upstream-fs/strace-static-x86_64: Process 5630 attached [pid 5625] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5629 [pid 5629] set_robust_list(0x555561ef96e0, 24 [pid 5625] rt_sigprocmask(SIG_SETMASK, [] [pid 5630] set_robust_list(0x555561ef96e0, 24 [pid 5629] <... set_robust_list resumed>) = 0 [pid 5628] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5627] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5630 [pid 5630] <... set_robust_list resumed>) = 0 [pid 5629] rt_sigprocmask(SIG_SETMASK, [] [pid 5628] close(3 [pid 5627] rt_sigprocmask(SIG_SETMASK, [] [pid 5625] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] rt_sigprocmask(SIG_SETMASK, [] [pid 5629] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5628] <... close resumed>) = 0 [pid 5625] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5629] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5628] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5627] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5628] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5625] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5630] <... prctl resumed>) = 0 [pid 5629] <... openat resumed>) = 3 [pid 5628] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5625] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5630] setpgid(0, 0) = 0 [pid 5630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5629] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5630] <... openat resumed>) = 3 [pid 5629] close(3ci2-upstream-fs/strace-static-x86_64: Process 5632 attached ci2-upstream-fs/strace-static-x86_64: Process 5631 attached [pid 5630] write(3, "1000", 4 [pid 5629] <... close resumed>) = 0 [pid 5625] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5632 [pid 5632] set_robust_list(0x555561ef96e0, 24 [pid 5630] <... write resumed>) = 4 [pid 5629] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5628] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5631 [pid 5625] rt_sigprocmask(SIG_SETMASK, [] [pid 5632] <... set_robust_list resumed>) = 0 [pid 5630] close(3 [pid 5629] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5628] rt_sigprocmask(SIG_SETMASK, [] [pid 5625] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5632] rt_sigprocmask(SIG_SETMASK, [] [pid 5631] set_robust_list(0x555561ef96e0, 24 [pid 5630] <... close resumed>) = 0 [pid 5625] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5632] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5631] <... set_robust_list resumed>) = 0 [pid 5629] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5628] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5632] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5631] rt_sigprocmask(SIG_SETMASK, [] [pid 5625] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5631] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] write(1, "executing program\n", 18 [pid 5625] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5630] <... write resumed>) = 18 executing program [pid 5630] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000ci2-upstream-fs/strace-static-x86_64: Process 5634 attached ci2-upstream-fs/strace-static-x86_64: Process 5633 attached [pid 5632] <... openat resumed>) = 3 [pid 5631] <... prctl resumed>) = 0 [pid 5630] <... futex resumed>) = 0 [pid 5625] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5633 [pid 5634] set_robust_list(0x555561ef96e0, 24 [pid 5633] set_robust_list(0x555561ef96e0, 24 [pid 5632] ioctl(3, LOOP_CLR_FD [pid 5631] setpgid(0, 0 [pid 5630] rt_sigaction(SIGRT_1, {sa_handler=0x7f72403e34d0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f72403d57e0} [pid 5629] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5634 [pid 5625] rt_sigprocmask(SIG_SETMASK, [] [pid 5634] <... set_robust_list resumed>) = 0 [pid 5633] <... set_robust_list resumed>) = 0 [pid 5632] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5631] <... setpgid resumed>) = 0 [pid 5630] <... rt_sigaction resumed>, NULL, 8) = 0 [pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5634] rt_sigprocmask(SIG_SETMASK, [] [pid 5629] rt_sigprocmask(SIG_SETMASK, [] [pid 5633] rt_sigprocmask(SIG_SETMASK, [] [pid 5625] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1] [pid 5631] <... openat resumed>) = 3 [pid 5634] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5633] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5632] close(3 [pid 5631] write(3, "1000", 4 [pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5629] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5633] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5630] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5633] <... openat resumed>) = 3 [pid 5632] <... close resumed>) = 0 [pid 5631] <... write resumed>) = 4 [pid 5630] <... mmap resumed>) = 0x7f724037d000 [pid 5634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5631] close(3 [pid 5634] <... prctl resumed>) = 0 [pid 5633] ioctl(3, LOOP_CLR_FD [pid 5632] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5631] <... close resumed>) = 0 [pid 5630] mprotect(0x7f724037e000, 131072, PROT_READ|PROT_WRITE [pid 5634] setpgid(0, 0 [pid 5633] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5632] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5630] <... mprotect resumed>) = 0 [pid 5634] <... setpgid resumed>) = 0 [pid 5633] close(3 [pid 5632] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5631] write(1, "executing program\n", 18 [pid 5630] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5633] <... close resumed>) = 0 [pid 5631] <... write resumed>) = 18 [pid 5630] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5633] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5630] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f724039d990, parent_tid=0x7f724039d990, exit_signal=0, stack=0x7f724037d000, stack_size=0x202c0, tls=0x7f724039d6c0} executing program [pid 5631] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000ci2-upstream-fs/strace-static-x86_64: Process 5636 attached ci2-upstream-fs/strace-static-x86_64: Process 5635 attached [pid 5634] <... openat resumed>) = 3 [pid 5633] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5631] <... futex resumed>) = 0 [pid 5636] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053 [pid 5635] set_robust_list(0x555561ef96e0, 24 [pid 5636] <... rseq resumed>) = 0 [pid 5634] write(3, "1000", 4 [pid 5633] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5631] rt_sigaction(SIGRT_1, {sa_handler=0x7f72403e34d0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f72403d57e0} [pid 5630] <... clone3 resumed> => {parent_tid=[5636]}, 88) = 5636 ci2-upstream-fs/strace-static-x86_64: Process 5637 attached [pid 5636] set_robust_list(0x7f724039d9a0, 24 [pid 5635] <... set_robust_list resumed>) = 0 [pid 5634] <... write resumed>) = 4 [pid 5632] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5635 [pid 5631] <... rt_sigaction resumed>, NULL, 8) = 0 [pid 5637] set_robust_list(0x555561ef96e0, 24 [pid 5635] rt_sigprocmask(SIG_SETMASK, [] [pid 5631] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1] [pid 5636] <... set_robust_list resumed>) = 0 [pid 5637] <... set_robust_list resumed>) = 0 [pid 5636] rt_sigprocmask(SIG_SETMASK, [] [pid 5635] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5631] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] rt_sigprocmask(SIG_SETMASK, [] [pid 5634] close(3 [pid 5633] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5637 [pid 5632] rt_sigprocmask(SIG_SETMASK, [] [pid 5637] rt_sigprocmask(SIG_SETMASK, [] [pid 5636] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5635] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5634] <... close resumed>) = 0 [pid 5633] rt_sigprocmask(SIG_SETMASK, [] [pid 5632] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5631] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5637] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5636] futex(0x7f724047de28, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5635] <... prctl resumed>) = 0 [pid 5634] write(1, "executing program\n", 18 [pid 5633] <... rt_sigprocmask resumed>, NULL, 8) = 0 executing program [pid 5631] <... mmap resumed>) = 0x7f724037d000 [pid 5630] futex(0x7f724047de28, FUTEX_WAKE_PRIVATE, 1000000 [pid 5637] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5636] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5635] setpgid(0, 0 [pid 5634] <... write resumed>) = 18 [pid 5631] mprotect(0x7f724037e000, 131072, PROT_READ|PROT_WRITE [pid 5630] <... futex resumed>) = 0 [pid 5637] <... prctl resumed>) = 0 [pid 5635] <... setpgid resumed>) = 0 [pid 5634] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5631] <... mprotect resumed>) = 0 [pid 5630] futex(0x7f724047de2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5637] setpgid(0, 0 [pid 5636] memfd_create("syzkaller", 0 [pid 5635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5634] <... futex resumed>) = 0 [pid 5631] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5637] <... setpgid resumed>) = 0 [pid 5636] <... memfd_create resumed>) = 3 [pid 5635] <... openat resumed>) = 3 [pid 5634] rt_sigaction(SIGRT_1, {sa_handler=0x7f72403e34d0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f72403d57e0} [pid 5631] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5636] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5635] write(3, "1000", 4 [pid 5634] <... rt_sigaction resumed>, NULL, 8) = 0 [pid 5631] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f724039d990, parent_tid=0x7f724039d990, exit_signal=0, stack=0x7f724037d000, stack_size=0x202c0, tls=0x7f724039d6c0} [pid 5634] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1]ci2-upstream-fs/strace-static-x86_64: Process 5638 attached [pid 5637] <... openat resumed>) = 3 [pid 5636] <... mmap resumed>) = 0x7f7237f7d000 [pid 5635] <... write resumed>) = 4 [pid 5634] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5638] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053 [pid 5637] write(3, "1000", 4 [pid 5635] close(3 [pid 5634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f724037d000 [pid 5638] <... rseq resumed>) = 0 [pid 5637] <... write resumed>) = 4 [pid 5635] <... close resumed>) = 0 [pid 5638] set_robust_list(0x7f724039d9a0, 24 [pid 5637] close(3 [pid 5635] write(1, "executing program\n", 18 executing program [pid 5634] mprotect(0x7f724037e000, 131072, PROT_READ|PROT_WRITE [pid 5631] <... clone3 resumed> => {parent_tid=[5638]}, 88) = 5638 [pid 5638] <... set_robust_list resumed>) = 0 [pid 5637] <... close resumed>) = 0 [pid 5635] <... write resumed>) = 18 [pid 5634] <... mprotect resumed>) = 0 [pid 5631] rt_sigprocmask(SIG_SETMASK, [] [pid 5638] rt_sigprocmask(SIG_SETMASK, [] [pid 5637] write(1, "executing program\n", 18 [pid 5635] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000 executing program [pid 5634] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5631] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5638] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5637] <... write resumed>) = 18 [pid 5635] <... futex resumed>) = 0 [pid 5631] futex(0x7f724047de28, FUTEX_WAKE_PRIVATE, 1000000 [pid 5635] rt_sigaction(SIGRT_1, {sa_handler=0x7f72403e34d0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f72403d57e0} [pid 5634] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5637] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5634] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f724039d990, parent_tid=0x7f724039d990, exit_signal=0, stack=0x7f724037d000, stack_size=0x202c0, tls=0x7f724039d6c0} [pid 5631] <... futex resumed>) = 0 ci2-upstream-fs/strace-static-x86_64: Process 5639 attached [pid 5637] <... futex resumed>) = 0 [pid 5635] <... rt_sigaction resumed>, NULL, 8) = 0 [pid 5631] futex(0x7f724047de2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5639] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053 [pid 5638] memfd_create("syzkaller", 0 [pid 5637] rt_sigaction(SIGRT_1, {sa_handler=0x7f72403e34d0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f72403d57e0} [pid 5635] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1] [pid 5639] <... rseq resumed>) = 0 [pid 5637] <... rt_sigaction resumed>, NULL, 8) = 0 [pid 5635] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5634] <... clone3 resumed> => {parent_tid=[5639]}, 88) = 5639 [pid 5639] set_robust_list(0x7f724039d9a0, 24 [pid 5638] <... memfd_create resumed>) = 3 [pid 5637] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1] [pid 5635] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5634] rt_sigprocmask(SIG_SETMASK, [] [pid 5639] <... set_robust_list resumed>) = 0 [pid 5638] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5637] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5635] <... mmap resumed>) = 0x7f724037d000 [pid 5634] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5639] rt_sigprocmask(SIG_SETMASK, [] [pid 5638] <... mmap resumed>) = 0x7f7237f7d000 [pid 5637] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5635] mprotect(0x7f724037e000, 131072, PROT_READ|PROT_WRITE [pid 5634] futex(0x7f724047de28, FUTEX_WAKE_PRIVATE, 1000000 [pid 5639] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5637] <... mmap resumed>) = 0x7f724037d000 [pid 5635] <... mprotect resumed>) = 0 [pid 5634] <... futex resumed>) = 0 [pid 5639] memfd_create("syzkaller", 0 [pid 5637] mprotect(0x7f724037e000, 131072, PROT_READ|PROT_WRITE [pid 5635] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5634] futex(0x7f724047de2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5637] <... mprotect resumed>) = 0 [pid 5639] <... memfd_create resumed>) = 3 [pid 5635] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5639] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7237f7d000 [pid 5637] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5635] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f724039d990, parent_tid=0x7f724039d990, exit_signal=0, stack=0x7f724037d000, stack_size=0x202c0, tls=0x7f724039d6c0} [pid 5637] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5637] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f724039d990, parent_tid=0x7f724039d990, exit_signal=0, stack=0x7f724037d000, stack_size=0x202c0, tls=0x7f724039d6c0}ci2-upstream-fs/strace-static-x86_64: Process 5641 attached ci2-upstream-fs/strace-static-x86_64: Process 5640 attached [pid 5641] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053 [pid 5640] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053 [pid 5637] <... clone3 resumed> => {parent_tid=[5640]}, 88) = 5640 [pid 5635] <... clone3 resumed> => {parent_tid=[5641]}, 88) = 5641 [pid 5641] <... rseq resumed>) = 0 [pid 5637] rt_sigprocmask(SIG_SETMASK, [] [pid 5641] set_robust_list(0x7f724039d9a0, 24 [pid 5640] <... rseq resumed>) = 0 [pid 5637] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5635] rt_sigprocmask(SIG_SETMASK, [] [pid 5641] <... set_robust_list resumed>) = 0 [pid 5640] set_robust_list(0x7f724039d9a0, 24 [pid 5637] futex(0x7f724047de28, FUTEX_WAKE_PRIVATE, 1000000 [pid 5641] rt_sigprocmask(SIG_SETMASK, [] [pid 5637] <... futex resumed>) = 0 [pid 5635] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5641] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5637] futex(0x7f724047de2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5641] memfd_create("syzkaller", 0 [pid 5640] <... set_robust_list resumed>) = 0 [pid 5635] futex(0x7f724047de28, FUTEX_WAKE_PRIVATE, 1000000 [pid 5640] rt_sigprocmask(SIG_SETMASK, [] [pid 5641] <... memfd_create resumed>) = 3 [pid 5635] <... futex resumed>) = 0 [pid 5640] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5641] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5640] memfd_create("syzkaller", 0 [pid 5635] futex(0x7f724047de2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5641] <... mmap resumed>) = 0x7f7237f7d000 [pid 5640] <... memfd_create resumed>) = 3 [pid 5640] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7237f7d000 [pid 5636] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [pid 5639] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [pid 5638] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [pid 5640] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [pid 5641] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [pid 5636] <... write resumed>) = 16777216 [pid 5636] munmap(0x7f7237f7d000, 138412032 [pid 5641] <... write resumed>) = 16777216 [pid 5641] munmap(0x7f7237f7d000, 138412032 [pid 5639] <... write resumed>) = 16777216 [pid 5639] munmap(0x7f7237f7d000, 138412032 [pid 5638] <... write resumed>) = 16777216 [pid 5636] <... munmap resumed>) = 0 [pid 5638] munmap(0x7f7237f7d000, 138412032 [pid 5636] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5636] ioctl(4, LOOP_SET_FD, 3 [pid 5640] <... write resumed>) = 16777216 [pid 5641] <... munmap resumed>) = 0 [pid 5640] munmap(0x7f7237f7d000, 138412032 [pid 5641] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5641] ioctl(4, LOOP_SET_FD, 3 [pid 5639] <... munmap resumed>) = 0 [pid 5639] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5639] ioctl(4, LOOP_SET_FD, 3 [pid 5638] <... munmap resumed>) = 0 [pid 5641] <... ioctl resumed>) = 0 [pid 5639] <... ioctl resumed>) = 0 [pid 5638] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5636] <... ioctl resumed>) = 0 [pid 5641] close(3 [pid 5638] <... openat resumed>) = 4 [pid 5641] <... close resumed>) = 0 [pid 5639] close(3 [pid 5638] ioctl(4, LOOP_SET_FD, 3 [pid 5636] close(3 [pid 5641] close(4 [pid 5639] <... close resumed>) = 0 [pid 5641] <... close resumed>) = 0 [ 126.444533][ T5636] loop0: detected capacity change from 0 to 32768 [ 126.455736][ T5641] loop3: detected capacity change from 0 to 32768 [ 126.479067][ T5639] loop2: detected capacity change from 0 to 32768 [pid 5641] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5640] <... munmap resumed>) = 0 [pid 5639] close(4 [pid 5636] <... close resumed>) = 0 [pid 5640] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5639] <... close resumed>) = 0 [pid 5636] close(4 [pid 5640] <... openat resumed>) = 4 [pid 5639] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5636] <... close resumed>) = 0 [pid 5640] ioctl(4, LOOP_SET_FD, 3 [pid 5636] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5638] <... ioctl resumed>) = 0 [pid 5638] close(3) = 0 [pid 5638] close(4) = 0 [ 126.488604][ T5638] loop1: detected capacity change from 0 to 32768 [pid 5638] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5640] <... ioctl resumed>) = 0 [pid 5640] close(3) = 0 [pid 5640] close(4) = 0 [pid 5640] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5641] <... mkdir resumed>) = 0 [pid 5640] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5639] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5638] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5636] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5639] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "jfs", 0, "" [pid 5636] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "jfs", 0, "" [pid 5638] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "jfs", 0, "" [pid 5641] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "jfs", 0, "" [ 126.524874][ T5640] loop4: detected capacity change from 0 to 32768 [ 126.705726][ T5639] Bad index:0 in slot in dtroot [ 126.705726][ T5639] [ 126.705749][ T5639] ERROR: (device loop2): copy_from_dinode: Corrupt dtroot [ 126.705749][ T5639] [ 126.714120][ T5639] ERROR: (device loop2): remounting filesystem as read-only [ 126.734622][ T5641] Bad index:0 in slot in dtroot [ 126.734622][ T5641] [ 126.734637][ T5641] ERROR: (device loop3): copy_from_dinode: Corrupt dtroot [ 126.734637][ T5641] [ 126.735883][ T5641] ERROR: (device loop3): remounting filesystem as read-only [ 126.752477][ T5638] Bad index:0 in slot in dtroot [ 126.752477][ T5638] [ 126.752533][ T5638] ERROR: (device loop1): copy_from_dinode: Corrupt dtroot [ 126.752533][ T5638] [ 126.753210][ T5640] Bad index:0 in slot in dtroot [ 126.753210][ T5640] [ 126.753245][ T5640] ERROR: (device loop4): copy_from_dinode: Corrupt dtroot [ 126.753245][ T5640] [ 126.773406][ T5640] ERROR: (device loop4): remounting filesystem as read-only [ 126.781915][ T5638] ERROR: (device loop1): remounting filesystem as read-only [ 126.861947][ T5636] Bad index:0 in slot in dtroot [ 126.861947][ T5636] [ 126.861966][ T5636] ERROR: (device loop0): copy_from_dinode: Corrupt dtroot [ 126.861966][ T5636] [ 126.864390][ T5636] ERROR: (device loop0): remounting filesystem as read-only [pid 5640] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "jfs", 0, "" [pid 5639] <... mount resumed>) = -1 EIO (Input/output error) [pid 5639] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5638] <... mount resumed>) = -1 EIO (Input/output error) [pid 5639] <... openat resumed>) = 3 [pid 5639] ioctl(3, LOOP_CLR_FD [pid 5638] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5639] <... ioctl resumed>) = 0 [pid 5639] close(3 [pid 5638] ioctl(3, LOOP_CLR_FD [pid 5639] <... close resumed>) = 0 [pid 5639] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5638] <... ioctl resumed>) = 0 [pid 5639] <... futex resumed>) = 1 [pid 5639] futex(0x7f724047de28, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5634] <... futex resumed>) = 0 [pid 5638] close(3 [pid 5634] exit_group(0) = ? [pid 5639] <... futex resumed>) = ? [pid 5641] <... mount resumed>) = -1 EIO (Input/output error) [pid 5641] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5641] ioctl(3, LOOP_CLR_FD) = 0 [pid 5641] close(3) = 0 [pid 5641] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5641] futex(0x7f724047de28, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5635] <... futex resumed>) = 0 [pid 5635] exit_group(0 [pid 5641] <... futex resumed>) = ? [pid 5635] <... exit_group resumed>) = ? [pid 5640] <... mount resumed>) = -1 EIO (Input/output error) [pid 5639] +++ exited with 0 +++ [pid 5634] +++ exited with 0 +++ [pid 5629] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5634, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5640] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5640] ioctl(3, LOOP_CLR_FD) = 0 [pid 5629] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5640] close(3 [pid 5629] <... openat resumed>) = 3 [pid 5641] +++ exited with 0 +++ [pid 5635] +++ exited with 0 +++ [pid 5629] ioctl(3, LOOP_CLR_FD) = 0 [pid 5629] close(3) = 0 [pid 5632] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5635, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=38 /* 0.38 s */} --- [pid 5629] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5632] restart_syscall(<... resuming interrupted rt_sigprocmask ...> [pid 5629] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5629] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5636] <... mount resumed>) = -1 EIO (Input/output error) [pid 5632] <... restart_syscall resumed>) = 0 ci2-upstream-fs/strace-static-x86_64: Process 5645 attached [pid 5636] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5629] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5645 [pid 5645] set_robust_list(0x555561ef96e0, 24 [pid 5636] <... openat resumed>) = 3 [pid 5632] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5645] <... set_robust_list resumed>) = 0 [pid 5632] <... openat resumed>) = 3 [pid 5629] rt_sigprocmask(SIG_SETMASK, [] [pid 5645] rt_sigprocmask(SIG_SETMASK, [] [pid 5636] ioctl(3, LOOP_CLR_FD [pid 5629] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5645] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5645] setpgid(0, 0) = 0 [pid 5645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5636] <... ioctl resumed>) = 0 [pid 5632] ioctl(3, LOOP_CLR_FD [pid 5645] <... openat resumed>) = 3 [pid 5636] close(3 [pid 5632] <... ioctl resumed>) = 0 [pid 5645] write(3, "1000", 4) = 4 [pid 5645] close(3) = 0 [pid 5645] write(1, "executing program\n", 18) = 18 [pid 5645] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000) = 0 executing program [pid 5645] rt_sigaction(SIGRT_1, {sa_handler=0x7f72403e34d0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f72403d57e0}, NULL, 8) = 0 [pid 5632] close(3) = 0 [pid 5645] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5645] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5632] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5645] <... mmap resumed>) = 0x7f724037d000 [pid 5645] mprotect(0x7f724037e000, 131072, PROT_READ|PROT_WRITE [pid 5632] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5645] <... mprotect resumed>) = 0 [pid 5632] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5645] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5645] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f724039d990, parent_tid=0x7f724039d990, exit_signal=0, stack=0x7f724037d000, stack_size=0x202c0, tls=0x7f724039d6c0}ci2-upstream-fs/strace-static-x86_64: Process 5646 attached => {parent_tid=[5646]}, 88) = 5646 [pid 5645] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5645] futex(0x7f724047de28, FUTEX_WAKE_PRIVATE, 1000000 [pid 5646] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053 [pid 5645] <... futex resumed>) = 0 [pid 5645] futex(0x7f724047de2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5646] <... rseq resumed>) = 0 ci2-upstream-fs/strace-static-x86_64: Process 5647 attached [pid 5646] set_robust_list(0x7f724039d9a0, 24 [pid 5647] set_robust_list(0x555561ef96e0, 24 [pid 5646] <... set_robust_list resumed>) = 0 [pid 5632] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5647 [pid 5647] <... set_robust_list resumed>) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5632] rt_sigprocmask(SIG_SETMASK, [] [pid 5647] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5646] memfd_create("syzkaller", 0 [pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5646] <... memfd_create resumed>) = 3 [pid 5632] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] <... prctl resumed>) = 0 [pid 5646] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5647] setpgid(0, 0 [pid 5646] <... mmap resumed>) = 0x7f7237f7d000 [pid 5647] <... setpgid resumed>) = 0 [pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5647] write(3, "1000", 4) = 4 [pid 5647] close(3) = 0 executing program [pid 5647] write(1, "executing program\n", 18) = 18 [pid 5647] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5647] rt_sigaction(SIGRT_1, {sa_handler=0x7f72403e34d0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f72403d57e0}, NULL, 8) = 0 [pid 5647] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5647] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f724037d000 [pid 5647] mprotect(0x7f724037e000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5647] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5647] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f724039d990, parent_tid=0x7f724039d990, exit_signal=0, stack=0x7f724037d000, stack_size=0x202c0, tls=0x7f724039d6c0}ci2-upstream-fs/strace-static-x86_64: Process 5648 attached => {parent_tid=[5648]}, 88) = 5648 [pid 5648] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053 [pid 5647] rt_sigprocmask(SIG_SETMASK, [] [pid 5648] <... rseq resumed>) = 0 [pid 5647] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5648] set_robust_list(0x7f724039d9a0, 24 [pid 5647] futex(0x7f724047de28, FUTEX_WAKE_PRIVATE, 1000000 [pid 5648] <... set_robust_list resumed>) = 0 [pid 5647] <... futex resumed>) = 0 [pid 5648] rt_sigprocmask(SIG_SETMASK, [] [pid 5647] futex(0x7f724047de2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5648] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5648] memfd_create("syzkaller", 0) = 3 [pid 5648] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7237f7d000 [pid 5646] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [pid 5640] <... close resumed>) = 0 [pid 5640] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5640] futex(0x7f724047de28, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5637] <... futex resumed>) = 0 [pid 5637] exit_group(0 [pid 5640] <... futex resumed>) = ? [pid 5637] <... exit_group resumed>) = ? [pid 5648] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [pid 5640] +++ exited with 0 +++ [pid 5637] +++ exited with 0 +++ [pid 5633] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5637, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=39 /* 0.39 s */} --- [pid 5633] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5633] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5633] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5633] close(3) = 0 [pid 5633] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5633] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5651 attached , child_tidptr=0x555561ef96d0) = 5651 [pid 5651] set_robust_list(0x555561ef96e0, 24 [pid 5633] rt_sigprocmask(SIG_SETMASK, [] [pid 5651] <... set_robust_list resumed>) = 0 [pid 5651] rt_sigprocmask(SIG_SETMASK, [] [pid 5633] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5651] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5651] setpgid(0, 0) = 0 [pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5651] write(3, "1000", 4) = 4 [pid 5651] close(3) = 0 [pid 5651] write(1, "executing program\n", 18) = 18 executing program [pid 5651] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5651] rt_sigaction(SIGRT_1, {sa_handler=0x7f72403e34d0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f72403d57e0}, NULL, 8) = 0 [pid 5651] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5651] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f724037d000 [pid 5651] mprotect(0x7f724037e000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5638] <... close resumed>) = 0 [pid 5651] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5638] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5631] <... futex resumed>) = 0 [pid 5651] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5638] futex(0x7f724047de28, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5631] exit_group(0 [pid 5651] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f724039d990, parent_tid=0x7f724039d990, exit_signal=0, stack=0x7f724037d000, stack_size=0x202c0, tls=0x7f724039d6c0} [pid 5638] <... futex resumed>) = ? [pid 5631] <... exit_group resumed>) = ? ci2-upstream-fs/strace-static-x86_64: Process 5652 attached [pid 5638] +++ exited with 0 +++ [pid 5636] <... close resumed>) = 0 [pid 5652] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 [pid 5652] set_robust_list(0x7f724039d9a0, 24) = 0 [pid 5651] <... clone3 resumed> => {parent_tid=[5652]}, 88) = 5652 [pid 5636] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5652] rt_sigprocmask(SIG_SETMASK, [] [pid 5651] rt_sigprocmask(SIG_SETMASK, [] [pid 5636] <... futex resumed>) = 1 [pid 5631] +++ exited with 0 +++ [pid 5630] <... futex resumed>) = 0 [pid 5652] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] exit_group(0 [pid 5628] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5631, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=47 /* 0.47 s */} --- [pid 5652] futex(0x7f724047de28, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5651] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] <... exit_group resumed>) = ? [pid 5651] futex(0x7f724047de28, FUTEX_WAKE_PRIVATE, 1000000 [pid 5628] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5652] <... futex resumed>) = 0 [pid 5651] <... futex resumed>) = 1 [pid 5628] <... openat resumed>) = 3 [pid 5652] memfd_create("syzkaller", 0 [pid 5651] futex(0x7f724047de2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5628] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5652] <... memfd_create resumed>) = 3 [pid 5636] +++ exited with 0 +++ [pid 5630] +++ exited with 0 +++ [pid 5628] close(3 [pid 5652] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5628] <... close resumed>) = 0 [pid 5627] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5630, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=61 /* 0.61 s */} --- [pid 5652] <... mmap resumed>) = 0x7f7237f7d000 [pid 5628] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5628] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5627] openat(AT_FDCWD, "/dev/loop0", O_RDWRci2-upstream-fs/strace-static-x86_64: Process 5653 attached [pid 5653] set_robust_list(0x555561ef96e0, 24 [pid 5628] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5653 [pid 5627] <... openat resumed>) = 3 [pid 5653] <... set_robust_list resumed>) = 0 [pid 5628] rt_sigprocmask(SIG_SETMASK, [] [pid 5627] ioctl(3, LOOP_CLR_FD [pid 5653] rt_sigprocmask(SIG_SETMASK, [] [pid 5628] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5627] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5653] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5653] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5627] close(3 [pid 5653] <... prctl resumed>) = 0 [pid 5627] <... close resumed>) = 0 [pid 5653] setpgid(0, 0) = 0 [pid 5627] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5627] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5654 attached [pid 5653] <... openat resumed>) = 3 [pid 5627] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5654 [pid 5627] rt_sigprocmask(SIG_SETMASK, [] [pid 5654] set_robust_list(0x555561ef96e0, 24 [pid 5653] write(3, "1000", 4 [pid 5627] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5654] <... set_robust_list resumed>) = 0 [pid 5653] <... write resumed>) = 4 [pid 5654] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5653] close(3 [pid 5654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5653] <... close resumed>) = 0 [pid 5654] setpgid(0, 0 [pid 5653] write(1, "executing program\n", 18 [pid 5654] <... setpgid resumed>) = 0 executing program [pid 5654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5653] <... write resumed>) = 18 [pid 5654] <... openat resumed>) = 3 [pid 5653] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5654] write(3, "1000", 4 [pid 5653] <... futex resumed>) = 0 [pid 5654] <... write resumed>) = 4 [pid 5654] close(3 [pid 5653] rt_sigaction(SIGRT_1, {sa_handler=0x7f72403e34d0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f72403d57e0} [pid 5654] <... close resumed>) = 0 [pid 5653] <... rt_sigaction resumed>, NULL, 8) = 0 [pid 5653] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1] [pid 5654] write(1, "executing program\n", 18 [pid 5653] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5653] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5654] <... write resumed>) = 18 executing program [pid 5653] <... mmap resumed>) = 0x7f724037d000 [pid 5653] mprotect(0x7f724037e000, 131072, PROT_READ|PROT_WRITE [pid 5654] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5653] <... mprotect resumed>) = 0 [pid 5654] <... futex resumed>) = 0 [pid 5654] rt_sigaction(SIGRT_1, {sa_handler=0x7f72403e34d0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f72403d57e0}, NULL, 8) = 0 [pid 5654] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5653] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5653] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f724039d990, parent_tid=0x7f724039d990, exit_signal=0, stack=0x7f724037d000, stack_size=0x202c0, tls=0x7f724039d6c0}ci2-upstream-fs/strace-static-x86_64: Process 5655 attached [pid 5654] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f724037d000 [pid 5654] mprotect(0x7f724037e000, 131072, PROT_READ|PROT_WRITE [pid 5653] <... clone3 resumed> => {parent_tid=[5655]}, 88) = 5655 [pid 5655] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053 [pid 5654] <... mprotect resumed>) = 0 [pid 5653] rt_sigprocmask(SIG_SETMASK, [] [pid 5655] <... rseq resumed>) = 0 [pid 5653] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5655] set_robust_list(0x7f724039d9a0, 24 [pid 5654] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5653] futex(0x7f724047de28, FUTEX_WAKE_PRIVATE, 1000000 [pid 5655] <... set_robust_list resumed>) = 0 [pid 5654] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5653] <... futex resumed>) = 0 [pid 5655] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5653] futex(0x7f724047de2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5655] memfd_create("syzkaller", 0 [pid 5654] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f724039d990, parent_tid=0x7f724039d990, exit_signal=0, stack=0x7f724037d000, stack_size=0x202c0, tls=0x7f724039d6c0} [pid 5655] <... memfd_create resumed>) = 3 [pid 5655] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0ci2-upstream-fs/strace-static-x86_64: Process 5656 attached ) = 0x7f7237f7d000 [pid 5656] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053 [pid 5654] <... clone3 resumed> => {parent_tid=[5656]}, 88) = 5656 [pid 5656] <... rseq resumed>) = 0 [pid 5656] set_robust_list(0x7f724039d9a0, 24 [pid 5654] rt_sigprocmask(SIG_SETMASK, [] [pid 5656] <... set_robust_list resumed>) = 0 [pid 5654] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5656] rt_sigprocmask(SIG_SETMASK, [] [pid 5654] futex(0x7f724047de28, FUTEX_WAKE_PRIVATE, 1000000 [pid 5656] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5654] <... futex resumed>) = 0 [pid 5656] memfd_create("syzkaller", 0 [pid 5654] futex(0x7f724047de2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5656] <... memfd_create resumed>) = 3 [pid 5656] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7237f7d000 [pid 5652] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [pid 5655] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [pid 5656] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [pid 5646] <... write resumed>) = 16777216 [pid 5646] munmap(0x7f7237f7d000, 138412032) = 0 [pid 5646] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5646] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5646] close(3) = 0 [pid 5646] close(4) = 0 [pid 5646] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = -1 EEXIST (File exists) [ 128.553409][ T5646] loop2: detected capacity change from 0 to 32768 [pid 5646] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "jfs", 0, "" [pid 5648] <... write resumed>) = 16777216 [ 128.601128][ T5646] Bad index:0 in slot in dtroot [ 128.601128][ T5646] [ 128.601145][ T5646] ERROR: (device loop2): copy_from_dinode: Corrupt dtroot [ 128.601145][ T5646] [ 128.604155][ T5646] ERROR: (device loop2): remounting filesystem as read-only [pid 5648] munmap(0x7f7237f7d000, 138412032) = 0 [pid 5646] <... mount resumed>) = -1 EIO (Input/output error) [pid 5648] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5646] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5648] ioctl(4, LOOP_SET_FD, 3 [pid 5646] <... openat resumed>) = 3 [pid 5646] ioctl(3, LOOP_CLR_FD) = 0 [pid 5646] close(3) = 0 [pid 5646] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5645] <... futex resumed>) = 0 [pid 5648] <... ioctl resumed>) = 0 [pid 5646] futex(0x7f724047de28, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5648] close(3 [pid 5645] exit_group(0 [pid 5646] <... futex resumed>) = ? [pid 5645] <... exit_group resumed>) = ? [pid 5646] +++ exited with 0 +++ [ 128.715552][ T5648] loop3: detected capacity change from 0 to 32768 [pid 5648] <... close resumed>) = 0 [pid 5648] close(4) = 0 [pid 5648] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = -1 EEXIST (File exists) [pid 5648] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "jfs", 0, "" [pid 5645] +++ exited with 0 +++ [pid 5629] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5645, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=31 /* 0.31 s */} --- [pid 5629] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5629] ioctl(3, LOOP_CLR_FD) = 0 [pid 5629] close(3) = 0 [pid 5629] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5629] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5659 attached , child_tidptr=0x555561ef96d0) = 5659 [pid 5629] rt_sigprocmask(SIG_SETMASK, [] [pid 5659] set_robust_list(0x555561ef96e0, 24 [pid 5629] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5659] <... set_robust_list resumed>) = 0 [pid 5659] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5659] setpgid(0, 0) = 0 [pid 5659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5659] write(3, "1000", 4) = 4 [pid 5659] close(3) = 0 executing program [pid 5659] write(1, "executing program\n", 18) = 18 [pid 5659] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5659] rt_sigaction(SIGRT_1, {sa_handler=0x7f72403e34d0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f72403d57e0}, NULL, 8) = 0 [pid 5659] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5659] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f724037d000 [pid 5659] mprotect(0x7f724037e000, 131072, PROT_READ|PROT_WRITE) = 0 [ 128.814487][ T5648] Bad index:0 in slot in dtroot [ 128.814487][ T5648] [ 128.814507][ T5648] ERROR: (device loop3): copy_from_dinode: Corrupt dtroot [ 128.814507][ T5648] [ 128.822516][ T5648] ERROR: (device loop3): remounting filesystem as read-only [pid 5659] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5659] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f724039d990, parent_tid=0x7f724039d990, exit_signal=0, stack=0x7f724037d000, stack_size=0x202c0, tls=0x7f724039d6c0}ci2-upstream-fs/strace-static-x86_64: Process 5660 attached => {parent_tid=[5660]}, 88) = 5660 [pid 5660] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053 [pid 5659] rt_sigprocmask(SIG_SETMASK, [] [pid 5660] <... rseq resumed>) = 0 [pid 5659] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5660] set_robust_list(0x7f724039d9a0, 24 [pid 5659] futex(0x7f724047de28, FUTEX_WAKE_PRIVATE, 1000000 [pid 5660] <... set_robust_list resumed>) = 0 [pid 5659] <... futex resumed>) = 0 [pid 5660] rt_sigprocmask(SIG_SETMASK, [] [pid 5659] futex(0x7f724047de2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5660] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5660] memfd_create("syzkaller", 0) = 3 [pid 5660] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7237f7d000 [pid 5648] <... mount resumed>) = -1 EIO (Input/output error) [pid 5648] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5648] ioctl(3, LOOP_CLR_FD) = 0 [pid 5648] close(3) = 0 [pid 5648] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5647] <... futex resumed>) = 0 [pid 5648] futex(0x7f724047de28, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5647] exit_group(0 [pid 5648] <... futex resumed>) = ? [pid 5647] <... exit_group resumed>) = ? [pid 5648] +++ exited with 0 +++ [pid 5655] <... write resumed>) = 16777216 [pid 5655] munmap(0x7f7237f7d000, 138412032 [pid 5647] +++ exited with 0 +++ [pid 5632] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5647, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5632] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5632] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5655] <... munmap resumed>) = 0 [pid 5632] <... openat resumed>) = 3 [pid 5632] ioctl(3, LOOP_CLR_FD) = 0 [pid 5632] close(3 [pid 5655] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5632] <... close resumed>) = 0 [pid 5655] <... openat resumed>) = 4 [pid 5632] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5632] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5655] ioctl(4, LOOP_SET_FD, 3ci2-upstream-fs/strace-static-x86_64: Process 5661 attached ) = 0 [pid 5632] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5661 [pid 5632] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5661] set_robust_list(0x555561ef96e0, 24) = 0 [pid 5655] close(3 [pid 5661] rt_sigprocmask(SIG_SETMASK, [] [pid 5655] <... close resumed>) = 0 [pid 5661] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5655] close(4 [pid 5661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5661] setpgid(0, 0) = 0 [pid 5661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5655] <... close resumed>) = 0 [pid 5661] <... openat resumed>) = 3 [pid 5655] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5661] write(3, "1000", 4 [pid 5655] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5661] <... write resumed>) = 4 [pid 5655] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "jfs", 0, "" [pid 5661] close(3) = 0 [pid 5661] write(1, "executing program\n", 18) = 18 executing program [pid 5661] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5661] rt_sigaction(SIGRT_1, {sa_handler=0x7f72403e34d0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f72403d57e0}, NULL, 8) = 0 [pid 5661] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5661] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f724037d000 [pid 5661] mprotect(0x7f724037e000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5661] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5661] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f724039d990, parent_tid=0x7f724039d990, exit_signal=0, stack=0x7f724037d000, stack_size=0x202c0, tls=0x7f724039d6c0}ci2-upstream-fs/strace-static-x86_64: Process 5662 attached => {parent_tid=[5662]}, 88) = 5662 [pid 5661] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5661] futex(0x7f724047de28, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5661] futex(0x7f724047de2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5662] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 [pid 5662] set_robust_list(0x7f724039d9a0, 24) = 0 [pid 5662] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 128.983862][ T5655] loop1: detected capacity change from 0 to 32768 [pid 5662] memfd_create("syzkaller", 0) = 3 [pid 5662] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7237f7d000 [pid 5660] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [pid 5655] <... mount resumed>) = -1 EIO (Input/output error) [pid 5655] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5655] ioctl(3, LOOP_CLR_FD) = 0 [pid 5655] close(3) = 0 [pid 5655] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5653] <... futex resumed>) = 0 [pid 5653] exit_group(0) = ? [pid 5655] +++ exited with 0 +++ [pid 5653] +++ exited with 0 +++ [pid 5628] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5653, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=31 /* 0.31 s */} --- [ 129.160750][ T5655] Bad index:0 in slot in dtroot [ 129.160750][ T5655] [ 129.160769][ T5655] ERROR: (device loop1): copy_from_dinode: Corrupt dtroot [ 129.160769][ T5655] [ 129.161018][ T5655] ERROR: (device loop1): remounting filesystem as read-only [pid 5628] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5628] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5628] ioctl(3, LOOP_CLR_FD) = 0 [pid 5628] close(3) = 0 [pid 5628] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5628] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5664 attached , child_tidptr=0x555561ef96d0) = 5664 [pid 5664] set_robust_list(0x555561ef96e0, 24) = 0 [pid 5664] rt_sigprocmask(SIG_SETMASK, [] [pid 5628] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5664] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5664] setpgid(0, 0) = 0 [pid 5664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5664] write(3, "1000", 4) = 4 [pid 5664] close(3) = 0 executing program [pid 5664] write(1, "executing program\n", 18) = 18 [pid 5664] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5652] <... write resumed>) = 16777216 [pid 5664] <... futex resumed>) = 0 [pid 5664] rt_sigaction(SIGRT_1, {sa_handler=0x7f72403e34d0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f72403d57e0} [pid 5652] munmap(0x7f7237f7d000, 138412032 [pid 5664] <... rt_sigaction resumed>, NULL, 8) = 0 [pid 5664] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5664] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f724037d000 [pid 5664] mprotect(0x7f724037e000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5664] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5664] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f724039d990, parent_tid=0x7f724039d990, exit_signal=0, stack=0x7f724037d000, stack_size=0x202c0, tls=0x7f724039d6c0}ci2-upstream-fs/strace-static-x86_64: Process 5665 attached [pid 5665] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053 [pid 5664] <... clone3 resumed> => {parent_tid=[5665]}, 88) = 5665 [pid 5665] <... rseq resumed>) = 0 [pid 5664] rt_sigprocmask(SIG_SETMASK, [] [pid 5665] set_robust_list(0x7f724039d9a0, 24 [pid 5664] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5665] <... set_robust_list resumed>) = 0 [pid 5664] futex(0x7f724047de28, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5665] rt_sigprocmask(SIG_SETMASK, [] [pid 5664] futex(0x7f724047de2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5665] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5665] memfd_create("syzkaller", 0) = 3 [pid 5665] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7237f7d000 [pid 5652] <... munmap resumed>) = 0 [pid 5652] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5652] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5652] close(3) = 0 [pid 5652] close(4) = 0 [pid 5652] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = -1 EEXIST (File exists) [pid 5652] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "jfs", 0, "" [pid 5656] <... write resumed>) = 16777216 [ 129.458061][ T5652] loop4: detected capacity change from 0 to 32768 [pid 5656] munmap(0x7f7237f7d000, 138412032) = 0 [pid 5656] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5656] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5656] close(3) = 0 [pid 5656] close(4) = 0 [pid 5656] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = -1 EEXIST (File exists) [ 129.581155][ T5656] loop0: detected capacity change from 0 to 32768 [ 129.598022][ T5652] Bad index:0 in slot in dtroot [ 129.598022][ T5652] [ 129.598039][ T5652] ERROR: (device loop4): copy_from_dinode: Corrupt dtroot [ 129.598039][ T5652] [ 129.601524][ T5652] ERROR: (device loop4): remounting filesystem as read-only [pid 5656] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "jfs", 0, "" [pid 5662] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [ 129.716352][ T5656] Bad index:0 in slot in dtroot [ 129.716352][ T5656] [ 129.716371][ T5656] ERROR: (device loop0): copy_from_dinode: Corrupt dtroot [ 129.716371][ T5656] [ 129.719587][ T5656] ERROR: (device loop0): remounting filesystem as read-only [pid 5665] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [pid 5652] <... mount resumed>) = -1 EIO (Input/output error) [pid 5656] <... mount resumed>) = -1 EIO (Input/output error) [pid 5652] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5656] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5652] ioctl(3, LOOP_CLR_FD [pid 5656] <... openat resumed>) = 3 [pid 5652] <... ioctl resumed>) = 0 [pid 5656] ioctl(3, LOOP_CLR_FD [pid 5652] close(3 [pid 5656] <... ioctl resumed>) = 0 [pid 5656] close(3 [pid 5652] <... close resumed>) = 0 [pid 5652] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5656] <... close resumed>) = 0 [pid 5652] <... futex resumed>) = 1 [pid 5651] <... futex resumed>) = 0 [pid 5656] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5652] futex(0x7f724047de28, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5656] <... futex resumed>) = 1 [pid 5656] futex(0x7f724047de28, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5654] <... futex resumed>) = 0 [pid 5654] exit_group(0) = ? [pid 5656] <... futex resumed>) = ? [pid 5656] +++ exited with 0 +++ [pid 5651] exit_group(0) = ? [pid 5652] <... futex resumed>) = ? [pid 5654] +++ exited with 0 +++ [pid 5627] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5654, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=41 /* 0.41 s */} --- [pid 5652] +++ exited with 0 +++ [pid 5651] +++ exited with 0 +++ [pid 5633] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5651, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5627] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5627] ioctl(3, LOOP_CLR_FD) = 0 [pid 5627] close(3) = 0 [pid 5627] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5627] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5633] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 ci2-upstream-fs/strace-static-x86_64: Process 5668 attached [pid 5627] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5668 [pid 5627] rt_sigprocmask(SIG_SETMASK, [] [pid 5633] ioctl(3, LOOP_CLR_FD [pid 5627] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5668] set_robust_list(0x555561ef96e0, 24 [pid 5633] <... ioctl resumed>) = 0 [pid 5668] <... set_robust_list resumed>) = 0 [pid 5633] close(3) = 0 [pid 5633] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5633] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5668] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5668] setpgid(0, 0) = 0 [pid 5668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5668] write(3, "1000", 4) = 4 [pid 5668] close(3) = 0 [pid 5668] write(1, "executing program\n", 18) = 18 [pid 5668] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000) = 0 executing program ci2-upstream-fs/strace-static-x86_64: Process 5669 attached [pid 5668] rt_sigaction(SIGRT_1, {sa_handler=0x7f72403e34d0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f72403d57e0} [pid 5633] <... clone resumed>, child_tidptr=0x555561ef96d0) = 5669 [pid 5669] set_robust_list(0x555561ef96e0, 24 [pid 5668] <... rt_sigaction resumed>, NULL, 8) = 0 [pid 5633] rt_sigprocmask(SIG_SETMASK, [] [pid 5668] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1] [pid 5669] <... set_robust_list resumed>) = 0 [pid 5668] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5633] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5669] rt_sigprocmask(SIG_SETMASK, [] [pid 5668] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f724037d000 [pid 5669] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5668] mprotect(0x7f724037e000, 131072, PROT_READ|PROT_WRITE [pid 5669] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5668] <... mprotect resumed>) = 0 [pid 5669] <... prctl resumed>) = 0 [pid 5668] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5669] setpgid(0, 0) = 0 [pid 5668] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5668] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f724039d990, parent_tid=0x7f724039d990, exit_signal=0, stack=0x7f724037d000, stack_size=0x202c0, tls=0x7f724039d6c0} [pid 5669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECci2-upstream-fs/strace-static-x86_64: Process 5670 attached [pid 5668] <... clone3 resumed> => {parent_tid=[5670]}, 88) = 5670 [pid 5669] <... openat resumed>) = 3 [pid 5668] rt_sigprocmask(SIG_SETMASK, [] [pid 5669] write(3, "1000", 4 [pid 5668] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5669] <... write resumed>) = 4 [pid 5668] futex(0x7f724047de28, FUTEX_WAKE_PRIVATE, 1000000 [pid 5669] close(3 [pid 5668] <... futex resumed>) = 0 [pid 5669] <... close resumed>) = 0 [pid 5668] futex(0x7f724047de2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5670] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053 [pid 5669] write(1, "executing program\n", 18 executing program [pid 5670] <... rseq resumed>) = 0 [pid 5669] <... write resumed>) = 18 [pid 5670] set_robust_list(0x7f724039d9a0, 24 [pid 5669] futex(0x7f724047de2c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5670] <... set_robust_list resumed>) = 0 [pid 5670] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5669] rt_sigaction(SIGRT_1, {sa_handler=0x7f72403e34d0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f72403d57e0} [pid 5670] memfd_create("syzkaller", 0 [pid 5669] <... rt_sigaction resumed>, NULL, 8) = 0 [pid 5670] <... memfd_create resumed>) = 3 [pid 5669] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1] [pid 5670] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5669] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5670] <... mmap resumed>) = 0x7f7237f7d000 [pid 5669] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f724037d000 [pid 5669] mprotect(0x7f724037e000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5669] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5669] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f724039d990, parent_tid=0x7f724039d990, exit_signal=0, stack=0x7f724037d000, stack_size=0x202c0, tls=0x7f724039d6c0}ci2-upstream-fs/strace-static-x86_64: Process 5671 attached => {parent_tid=[5671]}, 88) = 5671 [pid 5671] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 [pid 5669] rt_sigprocmask(SIG_SETMASK, [] [pid 5671] set_robust_list(0x7f724039d9a0, 24 [pid 5669] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5671] <... set_robust_list resumed>) = 0 [pid 5669] futex(0x7f724047de28, FUTEX_WAKE_PRIVATE, 1000000 [pid 5671] rt_sigprocmask(SIG_SETMASK, [] [pid 5669] <... futex resumed>) = 0 [pid 5669] futex(0x7f724047de2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5671] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5671] memfd_create("syzkaller", 0) = 3 [pid 5671] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7237f7d000 [pid 5660] <... write resumed>) = 16777216 [pid 5660] munmap(0x7f7237f7d000, 138412032 [pid 5670] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [pid 5671] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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