./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor845992064 <...> Warning: Permanently added '10.128.1.56' (ED25519) to the list of known hosts. execve("./syz-executor845992064", ["./syz-executor845992064"], 0x7ffcf1004e20 /* 10 vars */) = 0 brk(NULL) = 0x55555994d000 brk(0x55555994dd00) = 0x55555994dd00 arch_prctl(ARCH_SET_FS, 0x55555994d380) = 0 set_tid_address(0x55555994d650) = 5092 set_robust_list(0x55555994d660, 24) = 0 rseq(0x55555994dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor845992064", 4096) = 27 getrandom("\x33\x28\xb6\xfc\x70\xc5\xfe\x37", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555994dd00 brk(0x55555996ed00) = 0x55555996ed00 brk(0x55555996f000) = 0x55555996f000 mprotect(0x7fa635401000, 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=0x55555994d650) = 5093 ./strace-static-x86_64: Process 5093 attached [pid 5093] set_robust_list(0x55555994d660, 24) = 0 [pid 5093] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5093] setsid() = 1 [pid 5093] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5093] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5093] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5093] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5093] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5093] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5093] unshare(CLONE_NEWNS) = 0 [pid 5093] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5093] unshare(CLONE_NEWIPC) = 0 [pid 5093] unshare(CLONE_NEWCGROUP) = 0 [pid 5093] unshare(CLONE_NEWUTS) = 0 [pid 5093] unshare(CLONE_SYSVSEM) = 0 [pid 5093] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5093] write(3, "16777216", 8) = 8 [pid 5093] close(3) = 0 [pid 5093] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5093] write(3, "536870912", 9) = 9 [pid 5093] close(3) = 0 [pid 5093] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5093] write(3, "1024", 4) = 4 [pid 5093] close(3) = 0 [pid 5093] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5093] write(3, "8192", 4) = 4 [pid 5093] close(3) = 0 [pid 5093] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5093] write(3, "1024", 4) = 4 [pid 5093] close(3) = 0 [pid 5093] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5093] write(3, "1024", 4) = 4 [pid 5093] close(3) = 0 [pid 5093] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5093] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5093] close(3) = 0 [pid 5093] getpid() = 1 [pid 5093] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 3e f8 ff ff 48 89 df e8 [ 56.792455][ T5093] RSP: 0018:ffffc90003447858 EFLAGS: 00010246 [ 56.798509][ T5093] RAX: a6f9439f46a8f100 RBX: ffff888022941e5a RCX: ffff88801ee63c00 [ 56.806480][ T5093] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 56.814438][ T5093] RBP: 0000000000000000 R08: ffffffff83de2f37 R09: 1ffffffff1f58ffd [ 56.822396][ T5093] R10: dffffc0000000000 R11: fffffbfff1f58ffe R12: ffff888022941e22 [ 56.830440][ T5093] R13: 1ffff110045283c3 R14: 0000000000000008 R15: ffff888022941e18 [ 56.838400][ T5093] FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 56.847321][ T5093] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.853889][ T5093] CR2: 0000560cc3c689b0 CR3: 000000002b312000 CR4: 00000000003506f0 [ 56.861848][ T5093] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.869828][ T5093] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.877884][ T5093] Call Trace: [ 56.881156][ T5093] [ 56.884079][ T5093] ? __die_body+0x88/0xe0 [ 56.888419][ T5093] ? die+0xcf/0x110 [ 56.892218][ T5093] ? do_trap+0x15a/0x3a0 [ 56.896449][ T5093] ? gfs2_glock_nq+0x174b/0x1ab0 [ 56.901381][ T5093] ? do_error_trap+0x1dc/0x2c0 [ 56.906165][ T5093] ? gfs2_glock_nq+0x174b/0x1ab0 [ 56.911112][ T5093] ? __pfx_do_error_trap+0x10/0x10 [ 56.916241][ T5093] ? handle_invalid_op+0x34/0x40 [ 56.921177][ T5093] ? gfs2_glock_nq+0x174b/0x1ab0 [ 56.926115][ T5093] ? exc_invalid_op+0x38/0x50 [ 56.930808][ T5093] ? asm_exc_invalid_op+0x1a/0x20 [ 56.935824][ T5093] ? gfs2_dump_glock+0x17f7/0x1bb0 [ 56.941019][ T5093] ? gfs2_glock_nq+0x174b/0x1ab0 [ 56.945958][ T5093] ? gfs2_glock_nq+0x174a/0x1ab0 [ 56.950892][ T5093] do_sync+0x3cc/0xec0 [ 56.954947][ T5093] ? gfs2_quota_sync+0x3cc/0x590 [ 56.959871][ T5093] ? __pfx_do_sync+0x10/0x10 [ 56.964622][ T5093] ? do_raw_spin_lock+0x14f/0x370 [ 56.969654][ T5093] ? do_raw_spin_unlock+0x13c/0x8b0 [ 56.974870][ T5093] gfs2_quota_sync+0x3cc/0x590 [ 56.979662][ T5093] gfs2_sync_fs+0x4d/0xc0 [ 56.983995][ T5093] sync_filesystem+0xed/0x230 [ 56.988669][ T5093] generic_shutdown_super+0x72/0x2d0 [ 56.993943][ T5093] kill_block_super+0x44/0x90 [ 56.998607][ T5093] deactivate_locked_super+0xc4/0x130 [ 57.003974][ T5093] cleanup_mnt+0x426/0x4c0 [ 57.008381][ T5093] ? _raw_spin_unlock_irq+0x23/0x50 [ 57.013575][ T5093] task_work_run+0x24f/0x310 [ 57.018156][ T5093] ? __pfx_task_work_run+0x10/0x10 [ 57.023255][ T5093] ? do_exit+0xa22/0x27e0 [ 57.027592][ T5093] ? kmem_cache_free+0x145/0x340 [ 57.032539][ T5093] do_exit+0xa27/0x27e0 [ 57.036708][ T5093] ? __pfx_do_exit+0x10/0x10 [ 57.041315][ T5093] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 57.047298][ T5093] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 57.053624][ T5093] ? _raw_spin_unlock_irq+0x23/0x50 [ 57.058830][ T5093] ? lockdep_hardirqs_on+0x99/0x150 [ 57.064020][ T5093] do_group_exit+0x207/0x2c0 [ 57.068610][ T5093] __x64_sys_exit_group+0x3f/0x40 [ 57.073631][ T5093] do_syscall_64+0xf5/0x240 [ 57.078126][ T5093] ? clear_bhb_loop+0x35/0x90 [ 57.082795][ T5093] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 57.088702][ T5093] RIP: 0033:0x7fa635379749 [ 57.093105][ T5093] Code: Unable to access opcode bytes at 0x7fa63537971f. [ 57.100104][ T5093] RSP: 002b:00007ffd2e59e648 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 57.108504][ T5093] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fa635379749 [ 57.116462][ T5093] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 57.124430][ T5093] RBP: 00007fa6354072b0 R08: ffffffffffffffb8 R09: 000000000001268c [ 57.132428][ T5093] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa6354072b0 [ 57.140395][ T5093] R13: 0000000000000000 R14: 00007fa635408020 R15: 00007fa635347c80 [ 57.148363][ T5093] [ 57.151369][ T5093] Modules linked in: [ 57.155395][ T5093] ---[ end trace 0000000000000000 ]--- [ 57.160892][ T5093] RIP: 0010:gfs2_glock_nq+0x174b/0x1ab0 [ 57.166586][ T5093] Code: fe 0f b7 0b 48 c7 c7 20 73 0e 8c 48 8b 74 24 20 44 89 f2 e8 27 a1 a5 07 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 66 60 ff ff 90 <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 3e f8 ff ff 48 89 df e8 [ 57.186248][ T5093] RSP: 0018:ffffc90003447858 EFLAGS: 00010246 [ 57.192342][ T5093] RAX: a6f9439f46a8f100 RBX: ffff888022941e5a RCX: ffff88801ee63c00 [ 57.200358][ T5093] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 57.208360][ T5093] RBP: 0000000000000000 R08: ffffffff83de2f37 R09: 1ffffffff1f58ffd [ 57.216351][ T5093] R10: dffffc0000000000 R11: fffffbfff1f58ffe R12: ffff888022941e22 [ 57.224324][ T5093] R13: 1ffff110045283c3 R14: 0000000000000008 R15: ffff888022941e18 [ 57.232327][ T5093] FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 57.241535][ T5093] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.248189][ T5093] CR2: 0000560cc3c689b0 CR3: 000000002b312000 CR4: 00000000003506f0 [ 57.256193][ T5093] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.264149][ T5093] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.272150][ T5093] Kernel panic - not syncing: Fatal exception [ 57.278511][ T5093] Kernel Offset: disabled [ 57.282820][ T5093] Rebooting in 86400 seconds..