Warning: Permanently added '10.128.0.72' (ECDSA) to the list of known hosts. executing program [ 582.370313][ T1042] INFO: task syz-executor537:7456 blocked for more than 143 seconds. [ 582.378623][ T1042] Not tainted 5.1.0-rc2+ #38 [ 582.384041][ T1042] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 582.392785][ T1042] syz-executor537 D28384 7456 7455 0x80000000 [ 582.399223][ T1042] Call Trace: [ 582.402824][ T1042] __schedule+0x817/0x1cc0 [ 582.407269][ T1042] ? __sched_text_start+0x8/0x8 [ 582.412253][ T1042] ? __lock_acquire+0x242a/0x3fb0 [ 582.417287][ T1042] schedule+0x92/0x180 [ 582.421479][ T1042] schedule_timeout+0x8ca/0xfd0 [ 582.426468][ T1042] ? wait_for_completion+0x294/0x440 [ 582.431835][ T1042] ? find_held_lock+0x35/0x130 [ 582.436614][ T1042] ? usleep_range+0x170/0x170 [ 582.441477][ T1042] ? kasan_check_write+0x14/0x20 [ 582.446427][ T1042] ? _raw_spin_unlock_irq+0x28/0x90 [ 582.451727][ T1042] ? wait_for_completion+0x294/0x440 [ 582.457015][ T1042] ? _raw_spin_unlock_irq+0x28/0x90 [ 582.462324][ T1042] ? lockdep_hardirqs_on+0x418/0x5d0 [ 582.467694][ T1042] ? trace_hardirqs_on+0x67/0x230 [ 582.472807][ T1042] ? kasan_check_read+0x11/0x20 [ 582.477666][ T1042] wait_for_completion+0x29c/0x440 [ 582.482854][ T1042] ? lockdep_hardirqs_on+0x418/0x5d0 [ 582.488362][ T1042] ? wait_for_completion_interruptible+0x4b0/0x4b0 [ 582.495037][ T1042] ? wake_up_q+0xf0/0xf0 [ 582.499476][ T1042] ? percpu_ref_kill_and_confirm+0x1b7/0x3b0 [ 582.505837][ T1042] exit_aio+0x321/0x3a0 [ 582.510022][ T1042] ? io_submit_one+0x1cf0/0x1cf0 [ 582.515064][ T1042] ? mutex_unlock+0xd/0x10 [ 582.519651][ T1042] mmput+0xcf/0x4c0 [ 582.523747][ T1042] do_exit+0x816/0x2fa0 [ 582.527953][ T1042] ? __do_page_fault+0x623/0xda0 [ 582.533201][ T1042] ? mm_update_next_owner+0x640/0x640 [ 582.538615][ T1042] ? kasan_check_write+0x14/0x20 [ 582.543916][ T1042] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 582.549439][ T1042] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 582.555121][ T1042] do_group_exit+0x135/0x370 [ 582.559759][ T1042] __x64_sys_exit_group+0x44/0x50 [ 582.565012][ T1042] do_syscall_64+0x103/0x610 [ 582.569671][ T1042] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 582.575687][ T1042] RIP: 0033:0x43fe98 [ 582.580051][ T1042] Code: Bad RIP value. [ 582.584237][ T1042] RSP: 002b:00007ffc08c24858 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 582.592718][ T1042] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043fe98 [ 582.600886][ T1042] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 582.608901][ T1042] RBP: 00000000004bf890 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 582.617197][ T1042] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000000001 [ 582.625355][ T1042] R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 [ 582.634164][ T1042] [ 582.634164][ T1042] Showing all locks held in the system: [ 582.642049][ T1042] 1 lock held by khungtaskd/1042: [ 582.647154][ T1042] #0: 00000000ea1bb330 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e [ 582.656967][ T1042] 1 lock held by rsyslogd/7341: [ 582.661895][ T1042] #0: 000000007cb749df (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 [ 582.670728][ T1042] 2 locks held by getty/7431: [ 582.675395][ T1042] #0: 00000000d950e0b6 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 582.684449][ T1042] #1: 00000000c85f37ee (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 582.694152][ T1042] 2 locks held by getty/7432: [ 582.698818][ T1042] #0: 00000000eb2acebb (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 582.707866][ T1042] #1: 0000000037142e42 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 582.717474][ T1042] 2 locks held by getty/7433: [ 582.722380][ T1042] #0: 00000000157ca8ed (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 582.731514][ T1042] #1: 00000000ceb1f608 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 582.741179][ T1042] 2 locks held by getty/7434: [ 582.745913][ T1042] #0: 0000000077886280 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 582.755171][ T1042] #1: 00000000e595325e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 582.764954][ T1042] 2 locks held by getty/7435: [ 582.769728][ T1042] #0: 0000000096530da2 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 582.778921][ T1042] #1: 00000000fad56cff (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 582.788582][ T1042] 2 locks held by getty/7436: [ 582.793314][ T1042] #0: 0000000088a6a294 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 582.802463][ T1042] #1: 00000000a92246d9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 582.812457][ T1042] 2 locks held by getty/7437: [ 582.817139][ T1042] #0: 00000000b814a701 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 582.826256][ T1042] #1: 0000000039a9dda7 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 582.836238][ T1042] [ 582.838566][ T1042] ============================================= [ 582.838566][ T1042] [ 582.847172][ T1042] NMI backtrace for cpu 0 [ 582.851625][ T1042] CPU: 0 PID: 1042 Comm: khungtaskd Not tainted 5.1.0-rc2+ #38 [ 582.859279][ T1042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 582.869425][ T1042] Call Trace: [ 582.872787][ T1042] dump_stack+0x172/0x1f0 [ 582.877247][ T1042] nmi_cpu_backtrace.cold+0x63/0xa4 [ 582.882521][ T1042] ? lapic_can_unplug_cpu.cold+0x38/0x38 [ 582.888160][ T1042] nmi_trigger_cpumask_backtrace+0x1be/0x236 [ 582.894132][ T1042] arch_trigger_cpumask_backtrace+0x14/0x20 [ 582.900082][ T1042] watchdog+0x9b7/0xec0 [ 582.904263][ T1042] kthread+0x357/0x430 [ 582.908335][ T1042] ? reset_hung_task_detector+0x30/0x30 [ 582.913996][ T1042] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 582.920377][ T1042] ret_from_fork+0x3a/0x50 [ 582.925127][ T1042] Sending NMI from CPU 0 to CPUs 1: [ 582.930455][ C1] NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0x2/0x10 [ 582.931401][ T1042] Kernel panic - not syncing: hung_task: blocked tasks [ 582.945571][ T1042] CPU: 0 PID: 1042 Comm: khungtaskd Not tainted 5.1.0-rc2+ #38 [ 582.953273][ T1042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 582.963436][ T1042] Call Trace: [ 582.966737][ T1042] dump_stack+0x172/0x1f0 [ 582.971071][ T1042] panic+0x2cb/0x65c [ 582.975020][ T1042] ? __warn_printk+0xf3/0xf3 [ 582.979622][ T1042] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 582.985403][ T1042] ? printk_safe_flush+0xf2/0x140 [ 582.990421][ T1042] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 582.996658][ T1042] ? lapic_can_unplug_cpu.cold+0x38/0x38 [ 583.002359][ T1042] ? nmi_trigger_cpumask_backtrace+0x1a7/0x236 [ 583.008532][ T1042] ? nmi_trigger_cpumask_backtrace+0x19e/0x236 [ 583.014684][ T1042] watchdog+0x9c8/0xec0 [ 583.018845][ T1042] kthread+0x357/0x430 [ 583.023076][ T1042] ? reset_hung_task_detector+0x30/0x30 [ 583.028618][ T1042] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 583.034920][ T1042] ret_from_fork+0x3a/0x50 [ 583.040416][ T1042] Kernel Offset: disabled [ 583.044770][ T1042] Rebooting in 86400 seconds..