./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1542729089 <...> Warning: Permanently added '10.128.0.13' (ED25519) to the list of known hosts. execve("./syz-executor1542729089", ["./syz-executor1542729089"], 0x7ffc6b18d420 /* 10 vars */) = 0 brk(NULL) = 0x555555df4000 brk(0x555555df4d00) = 0x555555df4d00 arch_prctl(ARCH_SET_FS, 0x555555df4380) = 0 set_tid_address(0x555555df4650) = 5018 set_robust_list(0x555555df4660, 24) = 0 rseq(0x555555df4ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1542729089", 4096) = 28 getrandom("\x96\x45\x08\x66\xb9\xe8\x08\xaa", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555df4d00 brk(0x555555e15d00) = 0x555555e15d00 brk(0x555555e16000) = 0x555555e16000 mprotect(0x7fca0c479000, 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=0x555555df4650) = 5019 ./strace-static-x86_64: Process 5019 attached [pid 5019] set_robust_list(0x555555df4660, 24) = 0 [pid 5019] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5019] setsid() = 1 [pid 5019] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5019] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5019] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5019] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5019] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5019] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5019] unshare(CLONE_NEWNS) = 0 [pid 5019] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5019] unshare(CLONE_NEWIPC) = 0 [pid 5019] unshare(CLONE_NEWCGROUP) = 0 [pid 5019] unshare(CLONE_NEWUTS) = 0 [pid 5019] unshare(CLONE_SYSVSEM) = 0 [pid 5019] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "16777216", 8) = 8 [pid 5019] close(3) = 0 [pid 5019] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "536870912", 9) = 9 [pid 5019] close(3) = 0 [pid 5019] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "1024", 4) = 4 [pid 5019] close(3) = 0 [pid 5019] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "8192", 4) = 4 [pid 5019] close(3) = 0 [pid 5019] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "1024", 4) = 4 [pid 5019] close(3) = 0 [pid 5019] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "1024", 4) = 4 [pid 5019] close(3) = 0 [pid 5019] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5019] close(3) = 0 [pid 5019] getpid() = 1 [pid 5019] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<s_umount_key#47){+.+.}-{3:3}, at: deactivate_super+0xad/0xf0 [ 69.972131][ T5019] #1: ffff88802854cb78 (&sdp->sd_quota_sync_mutex){+.+.}-{3:3}, at: gfs2_quota_sync+0xa1/0x700 [ 69.982777][ T5019] #2: ffff88802854d060 (&sdp->sd_log_flush_lock){++++}-{3:3}, at: gfs2_log_flush+0x105/0x25f0 [ 69.993417][ T5019] #3: ffff88802854ce88 (&sdp->sd_log_lock){+.+.}-{2:2}, at: gfs2_flush_revokes+0x53/0x90 [ 70.003520][ T5019] #4: ffff88802854d248 (&sdp->sd_freeze_mutex){+.+.}-{3:3}, at: gfs2_withdraw+0x477/0x11e0 [ 70.013786][ T5019] Preemption disabled at: [ 70.013801][ T5019] [<0000000000000000>] 0x0 [ 70.022645][ T5019] CPU: 1 PID: 5019 Comm: syz-executor154 Not tainted 6.5.0-rc2-syzkaller-00066-g46670259519f #0 [ 70.033072][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 70.043137][ T5019] Call Trace: [ 70.046422][ T5019] [ 70.049360][ T5019] dump_stack_lvl+0x1e7/0x2d0 [ 70.054050][ T5019] ? nf_tcp_handle_invalid+0x650/0x650 [ 70.059513][ T5019] ? panic+0x770/0x770 [ 70.063685][ T5019] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 70.069621][ T5019] __might_resched+0x5cf/0x780 [ 70.074846][ T5019] ? __might_sleep+0xc0/0xc0 [ 70.079453][ T5019] ? cpu_curr_snapshot+0xd0/0xd0 [ 70.084406][ T5019] ? console_unlock+0x1ea/0x270 [ 70.089472][ T5019] wait_for_completion+0x1b/0x60 [ 70.094439][ T5019] kthread_stop+0x18e/0x5a0 [ 70.098961][ T5019] gfs2_make_fs_ro+0x183/0x680 [ 70.103935][ T5019] ? read_lock_is_recursive+0x20/0x20 [ 70.109319][ T5019] ? gfs2_dinode_out+0xaf0/0xaf0 [ 70.114265][ T5019] ? __mutex_trylock_common+0x182/0x2e0 [ 70.119843][ T5019] ? __lock_acquire+0x7f70/0x7f70 [ 70.124881][ T5019] ? trace_raw_output_contention_end+0xd0/0xd0 [ 70.131055][ T5019] ? do_raw_spin_unlock+0x13b/0x8b0 [ 70.136311][ T5019] gfs2_withdraw+0x48a/0x11e0 [ 70.141015][ T5019] gfs2_ail1_empty+0x7d0/0x860 [ 70.145804][ T5019] ? __rwlock_init+0x150/0x150 [ 70.150592][ T5019] ? gfs2_log_flush+0xc93/0x25f0 [ 70.155545][ T5019] ? __lock_acquire+0x7f70/0x7f70 [ 70.160589][ T5019] gfs2_flush_revokes+0x5e/0x90 [ 70.165458][ T5019] revoke_lo_before_commit+0x2c/0x5f0 [ 70.170847][ T5019] ? do_raw_spin_unlock+0x13b/0x8b0 [ 70.176070][ T5019] ? buf_lo_after_scan+0x1e0/0x1e0 [ 70.181258][ T5019] gfs2_log_flush+0xc93/0x25f0 [ 70.186061][ T5019] ? gfs2_ail_empty_tr+0x310/0x310 [ 70.191195][ T5019] ? __kmem_cache_free+0x25f/0x3b0 [ 70.196325][ T5019] ? do_sync+0x9e8/0xc80 [ 70.200592][ T5019] do_sync+0xa35/0xc80 [ 70.204681][ T5019] ? slot_put+0x210/0x210 [ 70.209022][ T5019] ? do_raw_spin_lock+0x14d/0x3a0 [ 70.214100][ T5019] ? do_raw_spin_unlock+0x13b/0x8b0 [ 70.219320][ T5019] ? qd_check_sync+0xba/0x3f0 [ 70.224014][ T5019] gfs2_quota_sync+0x30e/0x700 [ 70.228799][ T5019] ? get_nr_dirty_inodes+0x1c7/0x210 [ 70.234102][ T5019] gfs2_sync_fs+0x4d/0xb0 [ 70.238538][ T5019] sync_filesystem+0xec/0x220 [ 70.243235][ T5019] generic_shutdown_super+0x6f/0x340 [ 70.248543][ T5019] kill_block_super+0x68/0xa0 [ 70.253330][ T5019] deactivate_locked_super+0xa4/0x110 [ 70.258894][ T5019] cleanup_mnt+0x426/0x4c0 [ 70.263333][ T5019] ? _raw_spin_unlock_irq+0x23/0x50 [ 70.268553][ T5019] task_work_run+0x24a/0x300 [ 70.273163][ T5019] ? kasan_quarantine_put+0xd8/0x230 [ 70.278471][ T5019] ? task_work_cancel+0x2b0/0x2b0 [ 70.283525][ T5019] ? kmem_cache_free+0x292/0x500 [ 70.288483][ T5019] ? do_exit+0x68a/0x2290 [ 70.292836][ T5019] do_exit+0x68f/0x2290 [ 70.297037][ T5019] ? put_task_struct+0x80/0x80 [ 70.301824][ T5019] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 70.307825][ T5019] ? print_irqtrace_events+0x220/0x220 [ 70.313311][ T5019] ? _raw_spin_unlock_irq+0x23/0x50 [ 70.318529][ T5019] ? lockdep_hardirqs_on+0x98/0x140 [ 70.323744][ T5019] do_group_exit+0x206/0x2c0 [ 70.328363][ T5019] __x64_sys_exit_group+0x3f/0x40 [ 70.333406][ T5019] do_syscall_64+0x41/0xc0 [ 70.337845][ T5019] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 70.343760][ T5019] RIP: 0033:0x7fca0c3e4749 [ 70.348192][ T5019] Code: Unable to access opcode bytes at 0x7fca0c3e471f. [ 70.355215][ T5019] RSP: 002b:00007ffdd6ff7a08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 70.363643][ T5019] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fca0c3e4749 [ 70.371628][ T5019] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 70.379611][ T5019] RBP: 00007fca0c47f2b0 R08: ffffffffffffffb8 R09: 000000000001f6db [ 70.387595][ T5019] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fca0c47f2b0 [ 70.395577][ T5019] R13: 0000000000000000 R14: 00007fca0c480020 R15: 00007fca0c3b2c90 [ 70.403661][ T5019] [ 70.407031][ T5019] BUG: scheduling while atomic: syz-executor154/5019/0x00000002 [ 70.414880][ T5019] 5 locks held by syz-executor154/5019: [ 70.420602][ T5019] #0: ffff8880297960e0 (&type->s_umount_key#47){+.+.}-{3:3}, at: deactivate_super+0xad/0xf0 [ 70.430956][ T5019] #1: ffff88802854cb78 (&sdp->sd_quota_sync_mutex){+.+.}-{3:3}, at: gfs2_quota_sync+0xa1/0x700 [ 70.441510][ T5019] #2: ffff88802854d060 (&sdp->sd_log_flush_lock){++++}-{3:3}, at: gfs2_log_flush+0x105/0x25f0 [ 70.451985][ T5019] #3: ffff88802854ce88 (&sdp->sd_log_lock){+.+.}-{2:2}, at: gfs2_flush_revokes+0x53/0x90 [ 70.462019][ T5019] #4: ffff88802854d248 (&sdp->sd_freeze_mutex){+.+.}-{3:3}, at: gfs2_withdraw+0x477/0x11e0 [ 70.472222][ T5019] Modules linked in: [ 70.476266][ T5019] Preemption disabled at: [ 70.476276][ T5019] [<0000000000000000>] 0x0 [ 70.485020][ T5019] Kernel panic - not syncing: scheduling while atomic: panic_on_warn set ... [ 70.493784][ T5019] CPU: 1 PID: 5019 Comm: syz-executor154 Tainted: G W 6.5.0-rc2-syzkaller-00066-g46670259519f #0 [ 70.506130][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 70.516199][ T5019] Call Trace: [ 70.519788][ T5019] [ 70.522730][ T5019] dump_stack_lvl+0x1e7/0x2d0 [ 70.527483][ T5019] ? nf_tcp_handle_invalid+0x650/0x650 [ 70.532956][ T5019] ? panic+0x770/0x770 [ 70.537049][ T5019] ? vscnprintf+0x5d/0x80 [ 70.541403][ T5019] panic+0x30f/0x770 [ 70.545327][ T5019] ? check_panic_on_warn+0x21/0xa0 [ 70.550458][ T5019] ? __memcpy_flushcache+0x2b0/0x2b0 [ 70.555757][ T5019] ? __wake_up_klogd+0xcc/0x100 [ 70.560656][ T5019] check_panic_on_warn+0x82/0xa0 [ 70.565609][ T5019] __schedule_bug+0x1be/0x220 [ 70.570309][ T5019] ? raw_spin_rq_unlock_irq+0x90/0x90 [ 70.575710][ T5019] __schedule+0x193e/0x48f0 [ 70.580234][ T5019] ? trace_pelt_se_tp+0x3d/0x110 [ 70.585206][ T5019] ? verify_lock_unused+0x140/0x140 [ 70.590425][ T5019] ? release_firmware_map_entry+0x190/0x190 [ 70.596337][ T5019] ? enqueue_entity+0xb31/0x1790 [ 70.601303][ T5019] schedule+0xc3/0x180 [ 70.605389][ T5019] schedule_timeout+0xb0/0x310 [ 70.610169][ T5019] ? console_conditional_schedule+0x40/0x40 [ 70.616076][ T5019] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 70.622080][ T5019] ? _raw_spin_unlock_irq+0x23/0x50 [ 70.627292][ T5019] ? lockdep_hardirqs_on+0x98/0x140 [ 70.632506][ T5019] do_wait_for_common+0x449/0x5f0 [ 70.637554][ T5019] ? console_conditional_schedule+0x40/0x40 [ 70.643470][ T5019] ? bit_wait_io_timeout+0x120/0x120 [ 70.648766][ T5019] ? _raw_spin_lock_irq+0xdf/0x120 [ 70.653992][ T5019] ? console_unlock+0x1ea/0x270 [ 70.658872][ T5019] wait_for_completion+0x4a/0x60 [ 70.663822][ T5019] kthread_stop+0x18e/0x5a0 [ 70.668342][ T5019] gfs2_make_fs_ro+0x3b4/0x680 [ 70.673121][ T5019] ? read_lock_is_recursive+0x20/0x20 [ 70.678510][ T5019] ? gfs2_dinode_out+0xaf0/0xaf0 [ 70.683555][ T5019] ? __mutex_trylock_common+0x182/0x2e0 [ 70.689140][ T5019] ? __lock_acquire+0x7f70/0x7f70 [ 70.694181][ T5019] ? trace_raw_output_contention_end+0xd0/0xd0 [ 70.700351][ T5019] ? do_raw_spin_unlock+0x13b/0x8b0 [ 70.705635][ T5019] gfs2_withdraw+0x48a/0x11e0 [ 70.710337][ T5019] gfs2_ail1_empty+0x7d0/0x860 [ 70.715121][ T5019] ? __rwlock_init+0x150/0x150 [ 70.719903][ T5019] ? gfs2_log_flush+0xc93/0x25f0 [ 70.724864][ T5019] ? __lock_acquire+0x7f70/0x7f70 [ 70.729994][ T5019] gfs2_flush_revokes+0x5e/0x90 [ 70.734861][ T5019] revoke_lo_before_commit+0x2c/0x5f0 [ 70.740254][ T5019] ? do_raw_spin_unlock+0x13b/0x8b0 [ 70.745473][ T5019] ? buf_lo_after_scan+0x1e0/0x1e0 [ 70.750613][ T5019] gfs2_log_flush+0xc93/0x25f0 [ 70.755500][ T5019] ? gfs2_ail_empty_tr+0x310/0x310 [ 70.760720][ T5019] ? __kmem_cache_free+0x25f/0x3b0 [ 70.765851][ T5019] ? do_sync+0x9e8/0xc80 [ 70.770109][ T5019] do_sync+0xa35/0xc80 [ 70.774288][ T5019] ? slot_put+0x210/0x210 [ 70.778630][ T5019] ? do_raw_spin_lock+0x14d/0x3a0 [ 70.783686][ T5019] ? do_raw_spin_unlock+0x13b/0x8b0 [ 70.788909][ T5019] ? qd_check_sync+0xba/0x3f0 [ 70.793600][ T5019] gfs2_quota_sync+0x30e/0x700 [ 70.798383][ T5019] ? get_nr_dirty_inodes+0x1c7/0x210 [ 70.803699][ T5019] gfs2_sync_fs+0x4d/0xb0 [ 70.808048][ T5019] sync_filesystem+0xec/0x220 [ 70.812743][ T5019] generic_shutdown_super+0x6f/0x340 [ 70.818132][ T5019] kill_block_super+0x68/0xa0 [ 70.822839][ T5019] deactivate_locked_super+0xa4/0x110 [ 70.828225][ T5019] cleanup_mnt+0x426/0x4c0 [ 70.832665][ T5019] ? _raw_spin_unlock_irq+0x23/0x50 [ 70.837893][ T5019] task_work_run+0x24a/0x300 [ 70.842501][ T5019] ? kasan_quarantine_put+0xd8/0x230 [ 70.847910][ T5019] ? task_work_cancel+0x2b0/0x2b0 [ 70.852959][ T5019] ? kmem_cache_free+0x292/0x500 [ 70.857930][ T5019] ? do_exit+0x68a/0x2290 [ 70.862368][ T5019] do_exit+0x68f/0x2290 [ 70.866552][ T5019] ? put_task_struct+0x80/0x80 [ 70.871332][ T5019] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 70.877328][ T5019] ? print_irqtrace_events+0x220/0x220 [ 70.882823][ T5019] ? _raw_spin_unlock_irq+0x23/0x50 [ 70.888037][ T5019] ? lockdep_hardirqs_on+0x98/0x140 [ 70.893337][ T5019] do_group_exit+0x206/0x2c0 [ 70.898046][ T5019] __x64_sys_exit_group+0x3f/0x40 [ 70.903086][ T5019] do_syscall_64+0x41/0xc0 [ 70.907599][ T5019] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 70.913511][ T5019] RIP: 0033:0x7fca0c3e4749 [ 70.918167][ T5019] Code: Unable to access opcode bytes at 0x7fca0c3e471f. [ 70.925218][ T5019] RSP: 002b:00007ffdd6ff7a08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 70.933765][ T5019] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fca0c3e4749 [ 70.941763][ T5019] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 70.949852][ T5019] RBP: 00007fca0c47f2b0 R08: ffffffffffffffb8 R09: 000000000001f6db [ 70.957857][ T5019] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fca0c47f2b0 [ 70.965854][ T5019] R13: 0000000000000000 R14: 00007fca0c480020 R15: 00007fca0c3b2c90 [ 70.973858][ T5019] [ 70.977138][ T5019] Kernel Offset: disabled [ 70.981600][ T5019] Rebooting in 86400 seconds..