./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor260799130 <...> Warning: Permanently added '10.128.1.108' (ED25519) to the list of known hosts. execve("./syz-executor260799130", ["./syz-executor260799130"], 0x7fff4e3a0360 /* 10 vars */) = 0 brk(NULL) = 0x555557089000 brk(0x555557089d00) = 0x555557089d00 arch_prctl(ARCH_SET_FS, 0x555557089380) = 0 set_tid_address(0x555557089650) = 5016 set_robust_list(0x555557089660, 24) = 0 rseq(0x555557089ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor260799130", 4096) = 27 getrandom("\x29\x9e\x7c\x8b\xc8\x5a\xc4\x87", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555557089d00 brk(0x5555570aad00) = 0x5555570aad00 brk(0x5555570ab000) = 0x5555570ab000 mprotect(0x7f67ac1b1000, 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./strace-static-x86_64: Process 5017 attached , child_tidptr=0x555557089650) = 5017 [pid 5017] set_robust_list(0x555557089660, 24) = 0 [pid 5017] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5017] setsid() = 1 [pid 5017] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5017] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5017] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5017] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5017] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5017] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5017] unshare(CLONE_NEWNS) = 0 [pid 5017] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5017] unshare(CLONE_NEWIPC) = 0 [pid 5017] unshare(CLONE_NEWCGROUP) = 0 [pid 5017] unshare(CLONE_NEWUTS) = 0 [pid 5017] unshare(CLONE_SYSVSEM) = 0 [pid 5017] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5017] write(3, "16777216", 8) = 8 [pid 5017] close(3) = 0 [pid 5017] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5017] write(3, "536870912", 9) = 9 [pid 5017] close(3) = 0 [pid 5017] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5017] write(3, "1024", 4) = 4 [pid 5017] close(3) = 0 [pid 5017] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5017] write(3, "8192", 4) = 4 [pid 5017] close(3) = 0 [pid 5017] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5017] write(3, "1024", 4) = 4 [pid 5017] close(3) = 0 [pid 5017] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5017] write(3, "1024", 4) = 4 [pid 5017] close(3) = 0 [pid 5017] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5017] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5017] close(3) = 0 [pid 5017] getpid() = 1 [pid 5017] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 9e f5 ff ff 48 89 df e8 [ 55.976656][ T5017] RSP: 0018:ffffc90003b3f850 EFLAGS: 00010246 [ 55.982701][ T5017] RAX: 268d156a2309f700 RBX: 0000000000000008 RCX: ffff8880290a5940 [ 55.990651][ T5017] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 55.998597][ T5017] RBP: ffff88801ecb655a R08: ffffffff83b752e5 R09: 1ffffffff1d30f1d [ 56.006575][ T5017] R10: dffffc0000000000 R11: fffffbfff1d30f1e R12: ffff88807785e920 [ 56.014524][ T5017] R13: ffff88801ecb6518 R14: ffff88801ecb6530 R15: ffff888028fe4000 [ 56.022476][ T5017] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 56.031380][ T5017] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.037947][ T5017] CR2: 000055f85821e1a8 CR3: 00000000283c4000 CR4: 00000000003506f0 [ 56.045907][ T5017] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.053863][ T5017] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.061822][ T5017] Call Trace: [ 56.065088][ T5017] [ 56.068005][ T5017] ? __die_body+0x5e/0xa0 [ 56.072325][ T5017] ? die+0x87/0xb0 [ 56.076034][ T5017] ? do_trap+0x11e/0x350 [ 56.080257][ T5017] ? gfs2_glock_nq+0x1420/0x16c0 [ 56.085180][ T5017] ? gfs2_glock_nq+0x1420/0x16c0 [ 56.090103][ T5017] ? do_error_trap+0x141/0x1f0 [ 56.094851][ T5017] ? gfs2_glock_nq+0x1420/0x16c0 [ 56.099772][ T5017] ? do_int3+0x30/0x30 [ 56.103828][ T5017] ? handle_invalid_op+0x2c/0x40 [ 56.108751][ T5017] ? gfs2_glock_nq+0x1420/0x16c0 [ 56.113673][ T5017] ? exc_invalid_op+0x33/0x50 [ 56.118334][ T5017] ? asm_exc_invalid_op+0x1a/0x20 [ 56.123351][ T5017] ? gfs2_dump_glock+0x1715/0x1ad0 [ 56.128449][ T5017] ? gfs2_glock_nq+0x1420/0x16c0 [ 56.133379][ T5017] do_sync+0x3c6/0xc80 [ 56.137439][ T5017] ? gfs2_quota_sync+0x30e/0x700 [ 56.142362][ T5017] ? slot_put+0x210/0x210 [ 56.146682][ T5017] ? do_raw_spin_lock+0x14d/0x3a0 [ 56.151697][ T5017] ? do_raw_spin_unlock+0x13b/0x8b0 [ 56.156887][ T5017] ? qd_check_sync+0xba/0x3f0 [ 56.161548][ T5017] gfs2_quota_sync+0x30e/0x700 [ 56.166299][ T5017] ? get_nr_dirty_inodes+0x1c7/0x210 [ 56.171568][ T5017] gfs2_sync_fs+0x4d/0xb0 [ 56.175886][ T5017] sync_filesystem+0xec/0x220 [ 56.180549][ T5017] generic_shutdown_super+0x6f/0x340 [ 56.185822][ T5017] kill_block_super+0x68/0xa0 [ 56.190485][ T5017] deactivate_locked_super+0xa4/0x110 [ 56.195841][ T5017] cleanup_mnt+0x426/0x4c0 [ 56.200242][ T5017] ? _raw_spin_unlock_irq+0x23/0x50 [ 56.205429][ T5017] task_work_run+0x24a/0x300 [ 56.210007][ T5017] ? kasan_quarantine_put+0xd8/0x230 [ 56.215278][ T5017] ? task_work_cancel+0x2b0/0x2b0 [ 56.220291][ T5017] ? kmem_cache_free+0x292/0x500 [ 56.225220][ T5017] ? do_exit+0x68a/0x2290 [ 56.229535][ T5017] do_exit+0x68f/0x2290 [ 56.233683][ T5017] ? put_task_struct+0x80/0x80 [ 56.238434][ T5017] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 56.244403][ T5017] ? print_irqtrace_events+0x220/0x220 [ 56.249866][ T5017] ? _raw_spin_unlock_irq+0x23/0x50 [ 56.255052][ T5017] ? lockdep_hardirqs_on+0x98/0x140 [ 56.260236][ T5017] do_group_exit+0x206/0x2c0 [ 56.264816][ T5017] __x64_sys_exit_group+0x3f/0x40 [ 56.269828][ T5017] do_syscall_64+0x41/0xc0 [ 56.274230][ T5017] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 56.280111][ T5017] RIP: 0033:0x7f67ac128709 [ 56.284510][ T5017] Code: Unable to access opcode bytes at 0x7f67ac1286df. [ 56.291505][ T5017] RSP: 002b:00007ffee5219e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 56.299906][ T5017] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f67ac128709 [ 56.307891][ T5017] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 56.315865][ T5017] RBP: 00007f67ac1b72b0 R08: ffffffffffffffb8 R09: 0000000000013420 [ 56.323837][ T5017] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f67ac1b72b0 [ 56.331843][ T5017] R13: 0000000000000000 R14: 00007f67ac1b8020 R15: 00007f67ac0f6c60 [ 56.339804][ T5017] [ 56.342806][ T5017] Modules linked in: [ 56.346813][ T5017] ---[ end trace 0000000000000000 ]--- [ 56.352301][ T5017] RIP: 0010:gfs2_glock_nq+0x1420/0x16c0 [ 56.357858][ T5017] Code: bc 2c fe 0f b7 4d 00 48 c7 c7 e0 02 4d 8b 48 8b 74 24 28 89 da e8 e0 ce 02 07 31 ff 48 8b 34 24 ba 01 00 00 00 e8 e0 69 ff ff <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 9e f5 ff ff 48 89 df e8 [ 56.377863][ T5017] RSP: 0018:ffffc90003b3f850 EFLAGS: 00010246 [ 56.383959][ T5017] RAX: 268d156a2309f700 RBX: 0000000000000008 RCX: ffff8880290a5940 [ 56.391949][ T5017] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 56.399917][ T5017] RBP: ffff88801ecb655a R08: ffffffff83b752e5 R09: 1ffffffff1d30f1d [ 56.407911][ T5017] R10: dffffc0000000000 R11: fffffbfff1d30f1e R12: ffff88807785e920 [ 56.415908][ T5017] R13: ffff88801ecb6518 R14: ffff88801ecb6530 R15: ffff888028fe4000 [ 56.423894][ T5017] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 56.432849][ T5017] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.439419][ T5017] CR2: 000055f85821e1a8 CR3: 00000000283c4000 CR4: 00000000003506f0 [ 56.447406][ T5017] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.455399][ T5017] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.463384][ T5017] Kernel panic - not syncing: Fatal exception [ 56.469646][ T5017] Kernel Offset: disabled [ 56.473953][ T5017] Rebooting in 86400 seconds..