./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3859316686 <...> Warning: Permanently added '10.128.0.130' (ED25519) to the list of known hosts. execve("./syz-executor3859316686", ["./syz-executor3859316686"], 0x7ffc38190ab0 /* 10 vars */) = 0 brk(NULL) = 0x55556055e000 brk(0x55556055ed00) = 0x55556055ed00 arch_prctl(ARCH_SET_FS, 0x55556055e380) = 0 set_tid_address(0x55556055e650) = 5070 set_robust_list(0x55556055e660, 24) = 0 rseq(0x55556055eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3859316686", 4096) = 28 getrandom("\x3a\xbc\x19\x66\xc6\xc0\x71\xba", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556055ed00 brk(0x55556057fd00) = 0x55556057fd00 brk(0x555560580000) = 0x555560580000 mprotect(0x7fd488e97000, 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=0x55556055e650) = 5071 ./strace-static-x86_64: Process 5071 attached [pid 5071] set_robust_list(0x55556055e660, 24) = 0 [pid 5071] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5071] setsid() = 1 [pid 5071] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5071] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5071] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5071] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5071] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5071] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5071] unshare(CLONE_NEWNS) = 0 [pid 5071] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5071] unshare(CLONE_NEWIPC) = 0 [pid 5071] unshare(CLONE_NEWCGROUP) = 0 [pid 5071] unshare(CLONE_NEWUTS) = 0 [pid 5071] unshare(CLONE_SYSVSEM) = 0 [pid 5071] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "16777216", 8) = 8 [pid 5071] close(3) = 0 [pid 5071] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "536870912", 9) = 9 [pid 5071] close(3) = 0 [pid 5071] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "1024", 4) = 4 [pid 5071] close(3) = 0 [pid 5071] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "8192", 4) = 4 [pid 5071] close(3) = 0 [pid 5071] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "1024", 4) = 4 [pid 5071] close(3) = 0 [pid 5071] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "1024", 4) = 4 [pid 5071] close(3) = 0 [pid 5071] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5071] close(3) = 0 [pid 5071] getpid() = 1 [pid 5071] 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 [ 61.480910][ T5071] RSP: 0018:ffffc900035bf858 EFLAGS: 00010246 [ 61.487064][ T5071] RAX: beddc16a621c5700 RBX: ffff888021bbde5a RCX: ffff88802b0cbc00 [ 61.495043][ T5071] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 61.503013][ T5071] RBP: 0000000000000000 R08: ffffffff83d76727 R09: 1ffffffff1f4f695 [ 61.510985][ T5071] R10: dffffc0000000000 R11: fffffbfff1f4f696 R12: ffff888021bbde22 [ 61.519044][ T5071] R13: 1ffff11004377bc3 R14: 0000000000000008 R15: ffff888021bbde18 [ 61.527188][ T5071] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 61.536197][ T5071] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.542790][ T5071] CR2: 00007fd7cabf3870 CR3: 00000000225e6000 CR4: 00000000003506f0 [ 61.551119][ T5071] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.559171][ T5071] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.567136][ T5071] Call Trace: [ 61.570416][ T5071] [ 61.573343][ T5071] ? __die_body+0x88/0xe0 [ 61.577663][ T5071] ? die+0xcf/0x110 [ 61.581467][ T5071] ? do_trap+0x15a/0x3a0 [ 61.585699][ T5071] ? gfs2_glock_nq+0x174b/0x1ab0 [ 61.590634][ T5071] ? do_error_trap+0x1dc/0x2c0 [ 61.595391][ T5071] ? gfs2_glock_nq+0x174b/0x1ab0 [ 61.600322][ T5071] ? __pfx_do_error_trap+0x10/0x10 [ 61.605428][ T5071] ? handle_invalid_op+0x34/0x40 [ 61.610360][ T5071] ? gfs2_glock_nq+0x174b/0x1ab0 [ 61.615546][ T5071] ? exc_invalid_op+0x38/0x50 [ 61.620407][ T5071] ? asm_exc_invalid_op+0x1a/0x20 [ 61.625427][ T5071] ? gfs2_dump_glock+0x17f7/0x1bb0 [ 61.630541][ T5071] ? gfs2_glock_nq+0x174b/0x1ab0 [ 61.635472][ T5071] ? gfs2_glock_nq+0x174a/0x1ab0 [ 61.640414][ T5071] do_sync+0x3cc/0xec0 [ 61.644478][ T5071] ? gfs2_quota_sync+0x3cc/0x590 [ 61.649421][ T5071] ? __pfx_do_sync+0x10/0x10 [ 61.654012][ T5071] ? do_raw_spin_lock+0x14f/0x370 [ 61.659030][ T5071] ? do_raw_spin_unlock+0x13c/0x8b0 [ 61.664315][ T5071] gfs2_quota_sync+0x3cc/0x590 [ 61.669079][ T5071] gfs2_sync_fs+0x4d/0xc0 [ 61.673486][ T5071] sync_filesystem+0xed/0x230 [ 61.678155][ T5071] generic_shutdown_super+0x72/0x2d0 [ 61.683430][ T5071] kill_block_super+0x44/0x90 [ 61.688099][ T5071] deactivate_locked_super+0xc4/0x130 [ 61.693548][ T5071] cleanup_mnt+0x426/0x4c0 [ 61.697964][ T5071] ? _raw_spin_unlock_irq+0x23/0x50 [ 61.703154][ T5071] task_work_run+0x24f/0x310 [ 61.707835][ T5071] ? __pfx_task_work_run+0x10/0x10 [ 61.712939][ T5071] ? do_exit+0xa16/0x27e0 [ 61.717258][ T5071] ? kmem_cache_free+0x10b/0x2c0 [ 61.722210][ T5071] do_exit+0xa1b/0x27e0 [ 61.726451][ T5071] ? __pfx_do_exit+0x10/0x10 [ 61.731030][ T5071] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 61.737317][ T5071] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 61.743750][ T5071] ? _raw_spin_unlock_irq+0x23/0x50 [ 61.749029][ T5071] ? lockdep_hardirqs_on+0x99/0x150 [ 61.754235][ T5071] do_group_exit+0x207/0x2c0 [ 61.758821][ T5071] __x64_sys_exit_group+0x3f/0x40 [ 61.764189][ T5071] do_syscall_64+0xf5/0x240 [ 61.768776][ T5071] ? clear_bhb_loop+0x35/0x90 [ 61.773460][ T5071] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 61.779520][ T5071] RIP: 0033:0x7fd488e0f749 [ 61.783924][ T5071] Code: Unable to access opcode bytes at 0x7fd488e0f71f. [ 61.791014][ T5071] RSP: 002b:00007fff932aaf78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 61.799416][ T5071] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fd488e0f749 [ 61.807377][ T5071] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 61.815421][ T5071] RBP: 00007fd488e9d2b0 R08: ffffffffffffffb8 R09: 000000000001268c [ 61.823473][ T5071] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd488e9d2b0 [ 61.831431][ T5071] R13: 0000000000000000 R14: 00007fd488e9e020 R15: 00007fd488dddc80 [ 61.839512][ T5071] [ 61.842516][ T5071] Modules linked in: [ 61.846575][ T5071] ---[ end trace 0000000000000000 ]--- [ 61.852906][ T5071] RIP: 0010:gfs2_glock_nq+0x174b/0x1ab0 [ 61.858787][ T5071] Code: fe 0f b7 0b 48 c7 c7 40 25 0e 8c 48 8b 74 24 20 44 89 f2 e8 07 fb 9b 07 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 96 61 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 [ 61.878720][ T5071] RSP: 0018:ffffc900035bf858 EFLAGS: 00010246 [ 61.884842][ T5071] RAX: beddc16a621c5700 RBX: ffff888021bbde5a RCX: ffff88802b0cbc00 [ 61.892906][ T5071] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 61.901120][ T5071] RBP: 0000000000000000 R08: ffffffff83d76727 R09: 1ffffffff1f4f695 [ 61.909656][ T5071] R10: dffffc0000000000 R11: fffffbfff1f4f696 R12: ffff888021bbde22 [ 61.917690][ T5071] R13: 1ffff11004377bc3 R14: 0000000000000008 R15: ffff888021bbde18 [ 61.925708][ T5071] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 61.934677][ T5071] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.941485][ T5071] CR2: 00007fd7cabf3870 CR3: 00000000225e6000 CR4: 00000000003506f0 [ 61.949614][ T5071] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.957722][ T5071] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.965761][ T5071] Kernel panic - not syncing: Fatal exception [ 61.972340][ T5071] Kernel Offset: disabled [ 61.976745][ T5071] Rebooting in 86400 seconds..