Warning: Permanently added '10.128.0.102' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 428.301241][ T26] kauditd_printk_skb: 5 callbacks suppressed [ 428.301252][ T26] audit: type=1400 audit(1554247710.752:36): avc: denied { map } for pid=8214 comm="syz-executor424" path="/root/syz-executor424019202" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 576.609813][ T1042] INFO: task syz-executor424:8214 blocked for more than 143 seconds. [ 576.618018][ T1042] Not tainted 5.1.0-rc3+ #48 [ 576.623213][ T1042] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 576.631931][ T1042] syz-executor424 D27832 8214 8212 0x80000000 [ 576.638316][ T1042] Call Trace: [ 576.641818][ T1042] __schedule+0x817/0x1cc0 [ 576.646260][ T1042] ? __sched_text_start+0x8/0x8 [ 576.651199][ T1042] ? __lock_acquire+0x242a/0x3fb0 [ 576.656282][ T1042] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 576.662387][ T1042] schedule+0x92/0x180 [ 576.666458][ T1042] schedule_timeout+0x8ca/0xfd0 [ 576.671382][ T1042] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 576.677172][ T1042] ? usleep_range+0x170/0x170 [ 576.682035][ T1042] ? retint_kernel+0x2d/0x2d [ 576.686779][ T1042] ? _raw_spin_unlock_irq+0x54/0x90 [ 576.692099][ T1042] wait_for_completion+0x29c/0x440 [ 576.697269][ T1042] ? wait_for_completion_interruptible+0x4b0/0x4b0 [ 576.703991][ T1042] ? wake_up_q+0xf0/0xf0 [ 576.708331][ T1042] ? percpu_ref_kill_and_confirm+0x1b7/0x3b0 [ 576.714428][ T1042] exit_aio+0x321/0x3a0 [ 576.718650][ T1042] ? aio_poll_wake+0x11e0/0x11e0 [ 576.723681][ T1042] ? mutex_unlock+0xd/0x10 [ 576.728175][ T1042] mmput+0xcf/0x4c0 [ 576.732102][ T1042] do_exit+0x816/0x2fa0 [ 576.737585][ T1042] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 576.743158][ T1042] ? mm_update_next_owner+0x640/0x640 [ 576.748553][ T1042] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 576.754069][ T1042] ? retint_kernel+0x2d/0x2d [ 576.758672][ T1042] do_group_exit+0x135/0x370 [ 576.763316][ T1042] __x64_sys_exit_group+0x44/0x50 [ 576.768386][ T1042] do_syscall_64+0x103/0x610 [ 576.773026][ T1042] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 576.778924][ T1042] RIP: 0033:0x43ef68 [ 576.782882][ T1042] Code: Bad RIP value. [ 576.786953][ T1042] RSP: 002b:00007ffe6a212f58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 576.795993][ T1042] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043ef68 [ 576.804014][ T1042] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 576.812062][ T1042] RBP: 00000000004be768 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 576.820090][ T1042] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 576.828127][ T1042] R13: 00000000006d0180 R14: 0000000000000000 R15: 0000000000000000 [ 576.836286][ T1042] [ 576.836286][ T1042] Showing all locks held in the system: [ 576.844050][ T1042] 1 lock held by khungtaskd/1042: [ 576.849054][ T1042] #0: 00000000da80abf3 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e [ 576.858510][ T1042] 1 lock held by rsyslogd/8065: [ 576.863426][ T1042] #0: 000000003ae98b8c (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 [ 576.872119][ T1042] 2 locks held by getty/8187: [ 576.876783][ T1042] #0: 00000000f086f649 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 576.885873][ T1042] #1: 000000008f77e9e9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 576.895533][ T1042] 2 locks held by getty/8188: [ 576.900245][ T1042] #0: 00000000328390c9 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 576.909206][ T1042] #1: 00000000ddce99fb (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 576.918904][ T1042] 2 locks held by getty/8189: [ 576.924034][ T1042] #0: 000000008dad0d57 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 576.933140][ T1042] #1: 00000000c17729af (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 576.942773][ T1042] 2 locks held by getty/8190: [ 576.947434][ T1042] #0: 00000000bc0c5fc4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 576.956424][ T1042] #1: 000000003e1abf11 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 576.966104][ T1042] 2 locks held by getty/8191: [ 576.970885][ T1042] #0: 00000000538ac1f5 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 576.979985][ T1042] #1: 00000000dd1ea501 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 576.989629][ T1042] 2 locks held by getty/8192: [ 576.994310][ T1042] #0: 000000009dbe8e10 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 577.003314][ T1042] #1: 00000000e449f663 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 577.012915][ T1042] 2 locks held by getty/8193: [ 577.017567][ T1042] #0: 0000000065f68600 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 577.026792][ T1042] #1: 00000000d41ba2af (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 577.036434][ T1042] [ 577.038761][ T1042] ============================================= [ 577.038761][ T1042] [ 577.047241][ T1042] NMI backtrace for cpu 0 [ 577.051621][ T1042] CPU: 0 PID: 1042 Comm: khungtaskd Not tainted 5.1.0-rc3+ #48 [ 577.059246][ T1042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 577.069291][ T1042] Call Trace: [ 577.072693][ T1042] dump_stack+0x172/0x1f0 [ 577.077020][ T1042] nmi_cpu_backtrace.cold+0x63/0xa4 [ 577.082269][ T1042] ? lapic_can_unplug_cpu.cold+0x38/0x38 [ 577.087905][ T1042] nmi_trigger_cpumask_backtrace+0x1be/0x236 [ 577.093876][ T1042] arch_trigger_cpumask_backtrace+0x14/0x20 [ 577.100015][ T1042] watchdog+0x9b7/0xec0 [ 577.104182][ T1042] kthread+0x357/0x430 [ 577.108278][ T1042] ? reset_hung_task_detector+0x30/0x30 [ 577.114365][ T1042] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 577.126210][ T1042] ret_from_fork+0x3a/0x50 [ 577.130724][ T1042] Sending NMI from CPU 0 to CPUs 1: [ 577.136017][ C1] NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0x2/0x10 [ 577.140101][ T1042] Kernel panic - not syncing: hung_task: blocked tasks [ 577.151103][ T1042] CPU: 0 PID: 1042 Comm: khungtaskd Not tainted 5.1.0-rc3+ #48 [ 577.158626][ T1042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 577.168683][ T1042] Call Trace: [ 577.171966][ T1042] dump_stack+0x172/0x1f0 [ 577.176295][ T1042] panic+0x2cb/0x65c [ 577.180273][ T1042] ? __warn_printk+0xf3/0xf3 [ 577.184855][ T1042] ? lapic_can_unplug_cpu.cold+0x38/0x38 [ 577.190475][ T1042] ? ___preempt_schedule+0x16/0x18 [ 577.195572][ T1042] ? nmi_trigger_cpumask_backtrace+0x19e/0x236 [ 577.201707][ T1042] ? nmi_trigger_cpumask_backtrace+0x1fa/0x236 [ 577.207853][ T1042] ? nmi_trigger_cpumask_backtrace+0x204/0x236 [ 577.213992][ T1042] ? nmi_trigger_cpumask_backtrace+0x19e/0x236 [ 577.220129][ T1042] watchdog+0x9c8/0xec0 [ 577.224392][ T1042] kthread+0x357/0x430 [ 577.228556][ T1042] ? reset_hung_task_detector+0x30/0x30 [ 577.234147][ T1042] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 577.240505][ T1042] ret_from_fork+0x3a/0x50 [ 577.246174][ T1042] Kernel Offset: disabled [ 577.250637][ T1042] Rebooting in 86400 seconds..