./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3633518031 <...> Warning: Permanently added '10.128.0.227' (ED25519) to the list of known hosts. execve("./syz-executor3633518031", ["./syz-executor3633518031"], 0x7ffc4135a110 /* 10 vars */) = 0 brk(NULL) = 0x555556ea8000 brk(0x555556ea8d00) = 0x555556ea8d00 arch_prctl(ARCH_SET_FS, 0x555556ea8380) = 0 set_tid_address(0x555556ea8650) = 5035 set_robust_list(0x555556ea8660, 24) = 0 rseq(0x555556ea8ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3633518031", 4096) = 28 getrandom("\xb9\x91\x69\xb7\x3b\x82\x07\xda", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556ea8d00 brk(0x555556ec9d00) = 0x555556ec9d00 brk(0x555556eca000) = 0x555556eca000 mprotect(0x7f3e9857f000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ea8650) = 5036 ./strace-static-x86_64: Process 5036 attached [pid 5036] set_robust_list(0x555556ea8660, 24) = 0 [pid 5036] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5036] setsid() = 1 [pid 5036] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5036] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5036] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5036] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5036] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5036] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5036] unshare(CLONE_NEWNS) = 0 [pid 5036] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5036] unshare(CLONE_NEWIPC) = 0 [pid 5036] unshare(CLONE_NEWCGROUP) = 0 [pid 5036] unshare(CLONE_NEWUTS) = 0 [pid 5036] unshare(CLONE_SYSVSEM) = 0 [pid 5036] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5036] write(3, "16777216", 8) = 8 [pid 5036] close(3) = 0 [pid 5036] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5036] write(3, "536870912", 9) = 9 [pid 5036] close(3) = 0 [pid 5036] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5036] write(3, "1024", 4) = 4 [pid 5036] close(3) = 0 [pid 5036] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5036] write(3, "8192", 4) = 4 [pid 5036] close(3) = 0 [pid 5036] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5036] write(3, "1024", 4) = 4 [pid 5036] close(3) = 0 [pid 5036] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5036] write(3, "1024", 4) = 4 [pid 5036] close(3) = 0 [pid 5036] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5036] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5036] close(3) = 0 [pid 5036] getpid() = 1 [pid 5036] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e8 39 3a e5 fd 48 89 ef e8 f1 91 ff ff 41 89 c4 e9 af f9 ff [ 56.636731][ T5036] RSP: 0018:ffffc9000397f968 EFLAGS: 00010286 [ 56.642802][ T5036] RAX: 0000000000000000 RBX: ffff88801c4c9270 RCX: fffff5200072fede [ 56.650760][ T5036] RDX: ffff888022605940 RSI: ffffffff83a1f708 RDI: ffffffff8ad9cd10 [ 56.658739][ T5036] RBP: ffff888077f7fb60 R08: 0000000000000001 R09: 0000000000000000 [ 56.666778][ T5036] R10: 0000000000000001 R11: 0000000000000001 R12: ffff888025056000 [ 56.674746][ T5036] R13: 00000000000013ac R14: ffff88801e10cb18 R15: ffff88801e10cb00 [ 56.682715][ T5036] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 56.691645][ T5036] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.698214][ T5036] CR2: 00007f3e98583130 CR3: 0000000029dec000 CR4: 0000000000350ef0 [ 56.706438][ T5036] Call Trace: [ 56.709715][ T5036] [ 56.712631][ T5036] ? show_regs+0x8f/0xa0 [ 56.716873][ T5036] ? die+0x36/0xa0 [ 56.720669][ T5036] ? do_trap+0x22b/0x420 [ 56.724903][ T5036] ? gfs2_glock_nq+0xc00/0x13f0 [ 56.729755][ T5036] ? gfs2_glock_nq+0xc00/0x13f0 [ 56.734620][ T5036] ? do_error_trap+0xf4/0x230 [ 56.739314][ T5036] ? gfs2_glock_nq+0xc00/0x13f0 [ 56.744162][ T5036] ? handle_invalid_op+0x34/0x40 [ 56.749094][ T5036] ? gfs2_glock_nq+0xc00/0x13f0 [ 56.753933][ T5036] ? exc_invalid_op+0x2d/0x40 [ 56.758613][ T5036] ? asm_exc_invalid_op+0x1a/0x20 [ 56.763634][ T5036] ? gfs2_dump_glock+0x1778/0x1c80 [ 56.768887][ T5036] ? gfs2_glock_nq+0xc00/0x13f0 [ 56.773833][ T5036] ? gfs2_glock_nq+0xc00/0x13f0 [ 56.778877][ T5036] do_sync+0x45a/0xd30 [ 56.783028][ T5036] ? do_qc+0x680/0x680 [ 56.787160][ T5036] ? gfs2_quota_sync+0x4ad/0x630 [ 56.792094][ T5036] ? spin_bug+0x1d0/0x1d0 [ 56.796438][ T5036] gfs2_quota_sync+0x419/0x630 [ 56.801286][ T5036] gfs2_sync_fs+0x44/0xb0 [ 56.805606][ T5036] ? rgrp_unlock_local+0x20/0x20 [ 56.810533][ T5036] sync_filesystem+0x109/0x280 [ 56.815291][ T5036] generic_shutdown_super+0x7e/0x3c0 [ 56.820587][ T5036] kill_block_super+0x3b/0x70 [ 56.825254][ T5036] gfs2_kill_sb+0x361/0x410 [ 56.829757][ T5036] deactivate_locked_super+0x9a/0x170 [ 56.835150][ T5036] deactivate_super+0xde/0x100 [ 56.840031][ T5036] cleanup_mnt+0x222/0x3d0 [ 56.844445][ T5036] task_work_run+0x14d/0x240 [ 56.849039][ T5036] ? task_work_cancel+0x30/0x30 [ 56.853880][ T5036] ? __put_net+0x61/0x70 [ 56.858121][ T5036] do_exit+0xa92/0x2a20 [ 56.862276][ T5036] ? do_group_exit+0x1c5/0x2a0 [ 56.867031][ T5036] ? reacquire_held_locks+0x4b0/0x4b0 [ 56.872484][ T5036] ? do_raw_spin_lock+0x12e/0x2b0 [ 56.877498][ T5036] ? mm_update_next_owner+0x840/0x840 [ 56.882864][ T5036] ? spin_bug+0x1d0/0x1d0 [ 56.887274][ T5036] do_group_exit+0xd4/0x2a0 [ 56.891773][ T5036] __x64_sys_exit_group+0x3e/0x50 [ 56.896793][ T5036] do_syscall_64+0x38/0xb0 [ 56.901201][ T5036] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 56.907089][ T5036] RIP: 0033:0x7f3e984f6709 [ 56.911489][ T5036] Code: Unable to access opcode bytes at 0x7f3e984f66df. [ 56.918569][ T5036] RSP: 002b:00007ffeb02e1428 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 56.926975][ T5036] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f3e984f6709 [ 56.934931][ T5036] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 56.942891][ T5036] RBP: 00007f3e985852b0 R08: ffffffffffffffb8 R09: 0000000000013439 [ 56.951022][ T5036] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3e985852b0 [ 56.959017][ T5036] R13: 0000000000000000 R14: 00007f3e98586020 R15: 00007f3e984c4c50 [ 56.966996][ T5036] [ 56.970007][ T5036] Modules linked in: [ 56.974215][ T5036] ---[ end trace 0000000000000000 ]--- [ 56.979797][ T5036] RIP: 0010:gfs2_glock_nq+0xc00/0x13f0 [ 56.985373][ T5036] Code: 3c 03 0f 8e dd 05 00 00 8b 55 18 48 89 de 48 c7 c7 20 96 d9 8a e8 e0 5b c8 fd 48 8b 34 24 ba 01 00 00 00 31 ff e8 10 53 ff ff <0f> 0b e8 39 3a e5 fd 48 89 ef e8 f1 91 ff ff 41 89 c4 e9 af f9 ff [ 57.005064][ T5036] RSP: 0018:ffffc9000397f968 EFLAGS: 00010286 [ 57.011198][ T5036] RAX: 0000000000000000 RBX: ffff88801c4c9270 RCX: fffff5200072fede [ 57.019234][ T5036] RDX: ffff888022605940 RSI: ffffffff83a1f708 RDI: ffffffff8ad9cd10 [ 57.027251][ T5036] RBP: ffff888077f7fb60 R08: 0000000000000001 R09: 0000000000000000 [ 57.035581][ T5036] R10: 0000000000000001 R11: 0000000000000001 R12: ffff888025056000 [ 57.043657][ T5036] R13: 00000000000013ac R14: ffff88801e10cb18 R15: ffff88801e10cb00 [ 57.051657][ T5036] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 57.060610][ T5036] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.067261][ T5036] CR2: 00007f3e98583130 CR3: 0000000029dec000 CR4: 0000000000350ef0 [ 57.075269][ T5036] Kernel panic - not syncing: Fatal exception [ 57.082110][ T5036] Kernel Offset: disabled [ 57.086446][ T5036] Rebooting in 86400 seconds..