./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor810419513 <...> Warning: Permanently added '10.128.1.72' (ECDSA) to the list of known hosts. execve("./syz-executor810419513", ["./syz-executor810419513"], 0x7fff3ad4f260 /* 10 vars */) = 0 brk(NULL) = 0x555556c17000 brk(0x555556c17c40) = 0x555556c17c40 arch_prctl(ARCH_SET_FS, 0x555556c17300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor810419513", 4096) = 27 brk(0x555556c38c40) = 0x555556c38c40 brk(0x555556c39000) = 0x555556c39000 mprotect(0x7fc124ca9000, 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=0x555556c175d0) = 5073 ./strace-static-x86_64: Process 5073 attached [pid 5073] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5073] setsid() = 1 [pid 5073] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5073] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5073] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5073] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5073] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5073] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5073] unshare(CLONE_NEWNS) = 0 [pid 5073] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5073] unshare(CLONE_NEWIPC) = 0 [pid 5073] unshare(CLONE_NEWCGROUP) = 0 [pid 5073] unshare(CLONE_NEWUTS) = 0 [pid 5073] unshare(CLONE_SYSVSEM) = 0 [pid 5073] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] write(3, "16777216", 8) = 8 [pid 5073] close(3) = 0 [pid 5073] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] write(3, "536870912", 9) = 9 [pid 5073] close(3) = 0 [pid 5073] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] write(3, "1024", 4) = 4 [pid 5073] close(3) = 0 [pid 5073] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] write(3, "8192", 4) = 4 [pid 5073] close(3) = 0 [pid 5073] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] write(3, "1024", 4) = 4 [pid 5073] close(3) = 0 [pid 5073] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] write(3, "1024", 4) = 4 [pid 5073] close(3) = 0 [pid 5073] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5073] close(3) = 0 [pid 5073] getpid() = 1 [pid 5073] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 36 f9 ff ff e8 59 b6 d2 ff e8 74 59 5c 08 31 ff 41 89 c4 [ 37.862121][ T5073] RSP: 0018:ffffc90003ebf770 EFLAGS: 00010093 [ 37.868169][ T5073] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 37.876121][ T5073] RDX: ffff88807bb39d40 RSI: ffffffff81ae544b RDI: 0000000000000005 [ 37.884089][ T5073] RBP: ffffea0001efa0c0 R08: 0000000000000005 R09: 0000000000000000 [ 37.892041][ T5073] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 37.899993][ T5073] R13: ffffffff8e759fc0 R14: 0000000000000293 R15: ffff88802b554c48 [ 37.907946][ T5073] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 37.916943][ T5073] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.923508][ T5073] CR2: 00007fc124cad140 CR3: 000000000c48e000 CR4: 0000000000350ef0 [ 37.931461][ T5073] Call Trace: [ 37.934721][ T5073] [ 37.937636][ T5073] mark_buffer_dirty+0x70d/0xa40 [ 37.942567][ T5073] gfs2_unpin+0x109/0xcf0 [ 37.946879][ T5073] buf_lo_after_commit+0x144/0x210 [ 37.951973][ T5073] ? gfs2_unpin+0xcf0/0xcf0 [ 37.956459][ T5073] gfs2_log_flush+0x140f/0x28a0 [ 37.961302][ T5073] ? gfs2_ail_drain+0x630/0x630 [ 37.966135][ T5073] ? gfs2_log_commit+0xabe/0x10f0 [ 37.971164][ T5073] gfs2_trans_end+0x4d0/0x960 [ 37.975825][ T5073] do_sync+0x9e3/0xcf0 [ 37.979901][ T5073] ? gfs2_qa_put+0x160/0x160 [ 37.984474][ T5073] ? gfs2_quota_sync+0x3f5/0x660 [ 37.989396][ T5073] ? gfs2_quota_sync+0x2e6/0x660 [ 37.994315][ T5073] ? rwlock_bug.part.0+0x90/0x90 [ 37.999238][ T5073] gfs2_quota_sync+0x2e6/0x660 [ 38.003991][ T5073] gfs2_sync_fs+0x44/0xb0 [ 38.008304][ T5073] ? rgrp_unlock_local+0x20/0x20 [ 38.013311][ T5073] sync_filesystem.part.0+0x75/0x1d0 [ 38.018673][ T5073] sync_filesystem+0x8f/0xc0 [ 38.023242][ T5073] generic_shutdown_super+0x74/0x410 [ 38.028517][ T5073] kill_block_super+0x9b/0xf0 [ 38.033262][ T5073] gfs2_kill_sb+0x108/0x170 [ 38.037839][ T5073] deactivate_locked_super+0x98/0x160 [ 38.043192][ T5073] deactivate_super+0xb1/0xd0 [ 38.047852][ T5073] cleanup_mnt+0x2ae/0x3d0 [ 38.052254][ T5073] task_work_run+0x16f/0x270 [ 38.056860][ T5073] ? task_work_cancel+0x30/0x30 [ 38.061701][ T5073] do_exit+0xaa8/0x2950 [ 38.065862][ T5073] ? lock_downgrade+0x6e0/0x6e0 [ 38.070698][ T5073] ? do_raw_spin_lock+0x124/0x2b0 [ 38.075702][ T5073] ? mm_update_next_owner+0x7b0/0x7b0 [ 38.081058][ T5073] ? rwlock_bug.part.0+0x90/0x90 [ 38.085976][ T5073] ? _raw_spin_unlock_irq+0x23/0x50 [ 38.091192][ T5073] do_group_exit+0xd4/0x2a0 [ 38.095684][ T5073] __x64_sys_exit_group+0x3e/0x50 [ 38.100781][ T5073] do_syscall_64+0x39/0xb0 [ 38.105199][ T5073] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 38.111072][ T5073] RIP: 0033:0x7fc124c279b9 [ 38.115552][ T5073] Code: Unable to access opcode bytes at 0x7fc124c2798f. [ 38.122546][ T5073] RSP: 002b:00007ffc7fc46678 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 38.130936][ T5073] RAX: ffffffffffffffda RBX: 00007fc124caf330 RCX: 00007fc124c279b9 [ 38.138907][ T5073] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 38.146878][ T5073] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000000012536 [ 38.154834][ T5073] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc124caf330 [ 38.162784][ T5073] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 38.170745][ T5073] [ 38.173840][ T5073] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 38.181097][ T5073] CPU: 0 PID: 5073 Comm: syz-executor810 Not tainted 6.2.0-syzkaller #0 [ 38.189406][ T5073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 38.199530][ T5073] Call Trace: [ 38.202813][ T5073] [ 38.205826][ T5073] dump_stack_lvl+0xd1/0x138 [ 38.210412][ T5073] panic+0x2cc/0x626 [ 38.214294][ T5073] ? panic_print_sys_info.part.0+0x110/0x110 [ 38.220273][ T5073] ? __folio_mark_dirty+0xbcb/0xf80 [ 38.225460][ T5073] check_panic_on_warn.cold+0x19/0x35 [ 38.230821][ T5073] __warn+0xf2/0x1a0 [ 38.234730][ T5073] ? __folio_mark_dirty+0xbcb/0xf80 [ 38.239954][ T5073] report_bug+0x1c0/0x210 [ 38.244273][ T5073] handle_bug+0x3c/0x70 [ 38.248457][ T5073] exc_invalid_op+0x18/0x50 [ 38.252966][ T5073] asm_exc_invalid_op+0x1a/0x20 [ 38.257909][ T5073] RIP: 0010:__folio_mark_dirty+0xbcb/0xf80 [ 38.263705][ T5073] Code: 78 70 48 89 44 24 10 e8 63 58 5c 08 31 ff 89 c6 89 44 24 10 e8 26 b3 d2 ff 8b 44 24 10 85 c0 0f 85 42 f9 ff ff e8 65 b6 d2 ff <0f> 0b e9 36 f9 ff ff e8 59 b6 d2 ff e8 74 59 5c 08 31 ff 41 89 c4 [ 38.283321][ T5073] RSP: 0018:ffffc90003ebf770 EFLAGS: 00010093 [ 38.289379][ T5073] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 38.297330][ T5073] RDX: ffff88807bb39d40 RSI: ffffffff81ae544b RDI: 0000000000000005 [ 38.305291][ T5073] RBP: ffffea0001efa0c0 R08: 0000000000000005 R09: 0000000000000000 [ 38.313252][ T5073] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 38.321212][ T5073] R13: ffffffff8e759fc0 R14: 0000000000000293 R15: ffff88802b554c48 [ 38.329205][ T5073] ? __folio_mark_dirty+0xbcb/0xf80 [ 38.334402][ T5073] mark_buffer_dirty+0x70d/0xa40 [ 38.339329][ T5073] gfs2_unpin+0x109/0xcf0 [ 38.343641][ T5073] buf_lo_after_commit+0x144/0x210 [ 38.348841][ T5073] ? gfs2_unpin+0xcf0/0xcf0 [ 38.353334][ T5073] gfs2_log_flush+0x140f/0x28a0 [ 38.358210][ T5073] ? gfs2_ail_drain+0x630/0x630 [ 38.363230][ T5073] ? gfs2_log_commit+0xabe/0x10f0 [ 38.368258][ T5073] gfs2_trans_end+0x4d0/0x960 [ 38.372922][ T5073] do_sync+0x9e3/0xcf0 [ 38.376981][ T5073] ? gfs2_qa_put+0x160/0x160 [ 38.381566][ T5073] ? gfs2_quota_sync+0x3f5/0x660 [ 38.386488][ T5073] ? gfs2_quota_sync+0x2e6/0x660 [ 38.391412][ T5073] ? rwlock_bug.part.0+0x90/0x90 [ 38.396511][ T5073] gfs2_quota_sync+0x2e6/0x660 [ 38.401266][ T5073] gfs2_sync_fs+0x44/0xb0 [ 38.405609][ T5073] ? rgrp_unlock_local+0x20/0x20 [ 38.410666][ T5073] sync_filesystem.part.0+0x75/0x1d0 [ 38.415944][ T5073] sync_filesystem+0x8f/0xc0 [ 38.420544][ T5073] generic_shutdown_super+0x74/0x410 [ 38.425813][ T5073] kill_block_super+0x9b/0xf0 [ 38.430493][ T5073] gfs2_kill_sb+0x108/0x170 [ 38.435013][ T5073] deactivate_locked_super+0x98/0x160 [ 38.440405][ T5073] deactivate_super+0xb1/0xd0 [ 38.445100][ T5073] cleanup_mnt+0x2ae/0x3d0 [ 38.449507][ T5073] task_work_run+0x16f/0x270 [ 38.454086][ T5073] ? task_work_cancel+0x30/0x30 [ 38.459027][ T5073] do_exit+0xaa8/0x2950 [ 38.463191][ T5073] ? lock_downgrade+0x6e0/0x6e0 [ 38.468030][ T5073] ? do_raw_spin_lock+0x124/0x2b0 [ 38.473040][ T5073] ? mm_update_next_owner+0x7b0/0x7b0 [ 38.478493][ T5073] ? rwlock_bug.part.0+0x90/0x90 [ 38.483418][ T5073] ? _raw_spin_unlock_irq+0x23/0x50 [ 38.488605][ T5073] do_group_exit+0xd4/0x2a0 [ 38.493131][ T5073] __x64_sys_exit_group+0x3e/0x50 [ 38.498141][ T5073] do_syscall_64+0x39/0xb0 [ 38.502550][ T5073] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 38.508439][ T5073] RIP: 0033:0x7fc124c279b9 [ 38.512850][ T5073] Code: Unable to access opcode bytes at 0x7fc124c2798f. [ 38.519844][ T5073] RSP: 002b:00007ffc7fc46678 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 38.528238][ T5073] RAX: ffffffffffffffda RBX: 00007fc124caf330 RCX: 00007fc124c279b9 [ 38.536194][ T5073] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 38.544147][ T5073] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000000012536 [ 38.552130][ T5073] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc124caf330 [ 38.560085][ T5073] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 38.568074][ T5073] [ 38.572030][ T5073] Kernel Offset: disabled [ 38.576622][ T5073] Rebooting in 86400 seconds..