[....] Starting enhanced syslogd: rsyslogd[ 16.172057] audit: type=1400 audit(1520765163.675:4): avc: denied { syslog } for pid=3648 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.13' (ECDSA) to the list of known hosts. 2018/03/11 10:46:16 parsed 1 programs 2018/03/11 10:46:16 executed programs: 0 syzkaller login: [ 29.319263] IPVS: Creating netns size=2536 id=1 [ 29.440472] ------------[ cut here ]------------ [ 29.445314] WARNING: CPU: 1 PID: 0 at net/ipv4/af_inet.c:167 inet_sock_destruct+0x5f6/0x7b0 [ 29.453820] Kernel panic - not syncing: panic_on_warn set ... [ 29.453820] [ 29.461159] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.9.86-g00db063 #60 [ 29.468051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.477376] ffff8801db307cb8 ffffffff81d956f9 ffffffff83a480c0 ffff8801db307d90 [ 29.485364] ffffffff83f2fb00 ffffffff832eda06 0000000000000009 ffff8801db307d80 [ 29.493334] ffffffff8142f531 0000000041b58ab3 ffffffff8418b470 ffffffff8142f375 [ 29.501337] Call Trace: [ 29.503889] [ 29.505926] [] dump_stack+0xc1/0x128 [ 29.511279] [] ? inet_sock_destruct+0x5f6/0x7b0 [ 29.517570] [] panic+0x1bc/0x3a8 [ 29.522566] [] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7 [ 29.530787] [] ? load_image_and_restore+0xf9/0xf9 [ 29.537266] [] ? __warn+0x1a9/0x1e0 [ 29.542519] [] ? inet_sock_destruct+0x5f6/0x7b0 [ 29.548826] [] __warn+0x1c4/0x1e0 [ 29.553903] [] warn_slowpath_null+0x2c/0x40 [ 29.559846] [] inet_sock_destruct+0x5f6/0x7b0 [ 29.565964] [] ? trace_hardirqs_on+0xd/0x10 [ 29.571915] [] ? ipv4_mib_init_net+0x560/0x560 [ 29.578121] [] l2tp_tunnel_destruct+0x352/0x5a0 [ 29.584417] [] ? l2tp_tunnel_destruct+0x1aa/0x5a0 [ 29.590888] [] ? l2tp_tunnel_del_work+0x460/0x460 [ 29.597363] [] __sk_destruct+0x53/0x570 [ 29.602968] [] rcu_process_callbacks+0x898/0x1300 [ 29.609439] [] ? rcu_process_callbacks+0x977/0x1300 [ 29.616084] [] ? __sk_dst_check+0x240/0x240 [ 29.622035] [] __do_softirq+0x206/0x951 [ 29.627638] [] irq_exit+0x165/0x190 [ 29.632891] [] smp_apic_timer_interrupt+0x7b/0xa0 [ 29.639359] [] apic_timer_interrupt+0xa0/0xb0 [ 29.645474] [ 29.647510] [] ? native_safe_halt+0x6/0x10 [ 29.653388] [] ? trace_hardirqs_on+0xd/0x10 [ 29.659330] [] default_idle+0x55/0x360 [ 29.664861] [] arch_cpu_idle+0xa/0x10 [ 29.670297] [] default_idle_call+0x36/0x60 [ 29.676161] [] cpu_startup_entry+0x2b0/0x380 [ 29.682195] [] ? cpu_in_idle+0x20/0x20 [ 29.687706] [] ? clockevents_register_device+0x123/0x200 [ 29.694779] [] start_secondary+0x303/0x3e0 [ 29.700637] [] ? set_cpu_sibling_map+0x11f0/0x11f0 [ 29.707799] Dumping ftrace buffer: [ 29.711342] (ftrace buffer empty) [ 29.715026] Kernel Offset: disabled [ 29.718640] Rebooting in 86400 seconds..