[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 10.471900] random: sshd: uninitialized urandom read (32 bytes read) [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 11.959919] random: sshd: uninitialized urandom read (32 bytes read) [ 12.272740] random: sshd: uninitialized urandom read (32 bytes read) [ 12.336118] random: crng init done Warning: Permanently added '10.128.10.9' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 20.947878] ------------[ cut here ]------------ [ 20.948678] WARNING: CPU: 1 PID: 2055 at net/xfrm/xfrm_state.c:2192 xfrm_state_fini+0x2a0/0x340 [ 20.949855] Kernel panic - not syncing: panic_on_warn set ... [ 20.949855] [ 20.950843] CPU: 1 PID: 2055 Comm: kworker/u4:3 Not tainted 4.9.186+ #12 [ 20.951804] Workqueue: netns cleanup_net [ 20.952417] ffff8801cef6f900 ffffffff81b5a0b1 0000000000000000 ffffffff82a3a9a0 [ 20.953659] 00000000ffffffff 0000000000000001 0000000000000009 ffff8801cef6f9e0 [ 20.954818] ffffffff813fd59a 0000000041b58ab3 ffffffff82e317a2 ffffffff813fd3c1 [ 20.956034] Call Trace: [ 20.956423] [<00000000c31d0085>] dump_stack+0xc1/0x120 [ 20.957150] [<00000000220dc19c>] panic+0x1d9/0x3bd [ 20.957890] [<000000008307787b>] ? add_taint.cold+0x16/0x16 [ 20.958700] [<00000000dfcb1191>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 20.959750] [<0000000050046d8a>] ? xfrm_state_flush+0x1e3/0x310 [ 20.960709] [<0000000051c8dffd>] ? trace_hardirqs_on+0xd/0x10 [ 20.961605] [<000000002bc0d014>] ? __warn.cold+0x14/0x2f [ 20.962344] [<00000000a8ddae82>] ? xfrm_state_fini+0x2a0/0x340 [ 20.963150] [<000000000deda047>] __warn.cold+0x2f/0x2f [ 20.963925] [<00000000c3958ed3>] warn_slowpath_null+0x2d/0x40 [ 20.964719] [<00000000a8ddae82>] xfrm_state_fini+0x2a0/0x340 [ 20.965562] [<000000002d5980d9>] xfrm_net_exit+0x2e/0x40 [ 20.966331] [<0000000060876c61>] ? xfrm_policy_fini+0x320/0x320 [ 20.967170] [<000000001f045ea8>] ops_exit_list.isra.0+0xb0/0x160 [ 20.968010] [<00000000097f97ca>] cleanup_net+0x3d6/0x8a0 [ 20.973522] [<0000000093877f49>] ? debug_object_deactivate+0x1e4/0x360 [ 20.980250] [<000000005a1bbcf3>] ? net_drop_ns+0x80/0x80 [ 20.985764] [<0000000066a2ad11>] process_one_work+0x88b/0x1600 [ 20.991804] [<000000007dea14d7>] ? process_one_work+0x7ce/0x1600 [ 20.998029] [<00000000de20cb52>] ? pwq_dec_nr_in_flight+0x2e0/0x2e0 [ 21.004499] [<0000000016d763a4>] ? _raw_spin_unlock_irq+0x28/0x60 [ 21.010797] [<000000003aee3450>] worker_thread+0x5df/0x11d0 [ 21.016586] [<00000000893080cb>] ? process_one_work+0x1600/0x1600 [ 21.022888] [<00000000430e1d3f>] kthread+0x278/0x310 [ 21.028073] [<0000000051c8dffd>] ? trace_hardirqs_on+0xd/0x10 [ 21.034041] [<00000000691ec1ff>] ? kthread_park+0xa0/0xa0 [ 21.039647] [<00000000ee5b8d55>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 21.046387] [<00000000e29fd663>] ? finish_task_switch+0x42a/0x660 [ 21.052690] [<0000000090e2fca9>] ? finish_task_switch+0x1b7/0x660 [ 21.058991] [<0000000078773da9>] ? __switch_to_asm+0x41/0x70 [ 21.064856] [<000000009d9e231c>] ? __switch_to_asm+0x35/0x70 [ 21.070725] [<0000000078773da9>] ? __switch_to_asm+0x41/0x70 [ 21.076590] [<00000000691ec1ff>] ? kthread_park+0xa0/0xa0 [ 21.082197] [<00000000691ec1ff>] ? kthread_park+0xa0/0xa0 [ 21.087804] [<00000000521eec86>] ret_from_fork+0x5c/0x70 [ 21.093730] Kernel Offset: disabled [ 21.097361] Rebooting in 86400 seconds..