INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes [ 438.785896] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.13' (ECDSA) to the list of known hosts. [ 444.362432] random: sshd: uninitialized urandom read (32 bytes read) [ 444.447811] audit: type=1400 audit(1549251269.370:7): avc: denied { map } for pid=1847 comm="syz-executor445" path="/root/syz-executor445029039" dev="sda1" ino=16461 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes [ 714.720182] INFO: task kworker/0:1:22 blocked for more than 140 seconds. [ 714.727072] Not tainted 4.14.97+ #1 [ 714.731435] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 714.739390] kworker/0:1 D27680 22 2 0x80000000 [ 714.745219] Workqueue: ipv6_addrconf addrconf_verify_work [ 714.751094] Call Trace: [ 714.753676] ? __schedule+0x91c/0x1f30 [ 714.757566] ? __sched_text_start+0x8/0x8 [ 714.761886] ? lock_downgrade+0x5d0/0x5d0 [ 714.766035] ? lock_acquire+0x10f/0x380 [ 714.769988] ? __mutex_lock+0x2c1/0x1430 [ 714.774169] schedule+0x92/0x1c0 [ 714.777572] schedule_preempt_disabled+0x13/0x20 [ 714.782368] __mutex_lock+0x559/0x1430 [ 714.786251] ? trace_hardirqs_on+0x10/0x10 [ 714.790494] ? lock_acquire+0x10f/0x380 [ 714.794447] ? addrconf_verify_work+0xa/0x20 [ 714.798833] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 714.804308] ? debug_object_deactivate+0x1e4/0x360 [ 714.809227] ? lock_acquire+0x10f/0x380 [ 714.813227] ? addrconf_verify_work+0xa/0x20 [ 714.817629] addrconf_verify_work+0xa/0x20 [ 714.821879] process_one_work+0x7c6/0x14e0 [ 714.826102] ? pwq_dec_nr_in_flight+0x2b0/0x2b0 [ 714.830793] worker_thread+0x5d7/0x1080 [ 714.834753] ? process_one_work+0x14e0/0x14e0 [ 714.839224] kthread+0x310/0x420 [ 714.842654] ? kthread_create_on_node+0xf0/0xf0 [ 714.847306] ret_from_fork+0x3a/0x50 [ 714.851052] [ 714.851052] Showing all locks held in the system: [ 714.857358] 3 locks held by kworker/0:1/22: [ 714.861715] #0: ("%s"("ipv6_addrconf")){+.+.}, at: [] process_one_work+0x6e5/0x14e0 [ 714.871256] #1: ((addr_chk_work).work){+.+.}, at: [] process_one_work+0x71b/0x14e0 [ 714.880718] #2: (rtnl_mutex){+.+.}, at: [] addrconf_verify_work+0xa/0x20 [ 714.889286] 1 lock held by khungtaskd/23: [ 714.893439] #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a [ 714.902474] 1 lock held by rsyslogd/1631: [ 714.906603] #0: (&f->f_pos_lock){+.+.}, at: [] __fdget_pos+0xa6/0xc0 [ 714.914871] 2 locks held by getty/1759: [ 714.918820] #0: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref_wait+0x22/0x80 [ 714.927761] #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1f7/0x1700 [ 714.937039] [ 714.938643] ============================================= [ 714.938643] [ 714.945662] NMI backtrace for cpu 0 [ 714.949267] CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.97+ #1 [ 714.955642] Call Trace: [ 714.958205] dump_stack+0xb9/0x10e [ 714.961725] ? irq_force_complete_move+0x271/0x2e5 [ 714.966635] nmi_cpu_backtrace.cold+0x47/0x86 [ 714.971109] ? irq_force_complete_move.cold+0x7b/0x7b [ 714.976276] ? nmi_trigger_cpumask_backtrace+0x119/0x147 [ 714.981701] ? watchdog+0x56c/0xa90 [ 714.985303] ? reset_hung_task_detector+0x10/0x10 [ 714.990124] ? kthread+0x310/0x420 [ 714.993639] ? kthread_create_on_node+0xf0/0xf0 [ 714.998291] ? ret_from_fork+0x3a/0x50 [ 715.002219] Sending NMI from CPU 0 to CPUs 1: [ 715.006771] NMI backtrace for cpu 1 skipped: idling at pc 0xffffffffb9e508a2 [ 715.007704] Kernel panic - not syncing: hung_task: blocked tasks [ 715.020247] CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.97+ #1 [ 715.026629] Call Trace: [ 715.029196] dump_stack+0xb9/0x10e [ 715.032714] panic+0x1d9/0x3c2 [ 715.035886] ? add_taint.cold+0x16/0x16 [ 715.039837] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 715.045083] ? cpumask_next+0x1f/0x30 [ 715.048863] ? printk_safe_flush+0xac/0x110 [ 715.053163] watchdog+0x57d/0xa90 [ 715.056640] ? reset_hung_task_detector+0x10/0x10 [ 715.061474] kthread+0x310/0x420 [ 715.064882] ? kthread_create_on_node+0xf0/0xf0 [ 715.069541] ret_from_fork+0x3a/0x50 [ 715.073590] Kernel Offset: 0x37600000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 715.084489] Rebooting in 86400 seconds..