[....] Starting enhanced syslogd: rsyslogd[ 15.108768] audit: type=1400 audit(1521374826.480:4): avc: denied { syslog } for pid=3642 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 file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.48' (ECDSA) to the list of known hosts. 2018/03/18 12:07:18 parsed 1 programs 2018/03/18 12:07:18 executed programs: 0 syzkaller login: [ 27.086601] IPVS: Creating netns size=2536 id=1 [ 27.216455] ------------[ cut here ]------------ [ 27.221241] WARNING: CPU: 1 PID: 0 at net/ipv4/af_inet.c:167 inet_sock_destruct+0x5f6/0x7b0 [ 27.229717] Kernel panic - not syncing: panic_on_warn set ... [ 27.229717] [ 27.237058] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.9.88-gbb52bba #7 [ 27.243868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.253191] ffff8801db307cb8 ffffffff81d95f19 ffffffff83a482a0 ffff8801db307d90 [ 27.261158] ffffffff83f2fd00 ffffffff832f0056 0000000000000009 ffff8801db307d80 [ 27.269116] ffffffff8142fa71 0000000041b58ab3 ffffffff8418bc48 ffffffff8142f8b5 [ 27.277076] Call Trace: [ 27.279625] [ 27.281664] [] dump_stack+0xc1/0x128 [ 27.287026] [] ? inet_sock_destruct+0x5f6/0x7b0 [ 27.293311] [] panic+0x1bc/0x3a8 [ 27.298298] [] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7 [ 27.306493] [] ? load_image_and_restore+0xf9/0xf9 [ 27.312955] [] ? __warn+0x1a9/0x1e0 [ 27.318200] [] ? inet_sock_destruct+0x5f6/0x7b0 [ 27.324484] [] __warn+0x1c4/0x1e0 [ 27.329560] [] warn_slowpath_null+0x2c/0x40 [ 27.335499] [] inet_sock_destruct+0x5f6/0x7b0 [ 27.341611] [] ? trace_hardirqs_on+0xd/0x10 [ 27.347553] [] ? ipv4_mib_init_net+0x560/0x560 [ 27.353755] [] l2tp_tunnel_destruct+0x352/0x5a0 [ 27.360040] [] ? l2tp_tunnel_destruct+0x1aa/0x5a0 [ 27.366501] [] ? l2tp_tunnel_del_work+0x460/0x460 [ 27.372962] [] __sk_destruct+0x53/0x570 [ 27.378556] [] rcu_process_callbacks+0x898/0x1300 [ 27.385032] [] ? rcu_process_callbacks+0x977/0x1300 [ 27.391664] [] ? __sk_dst_check+0x240/0x240 [ 27.397606] [] __do_softirq+0x206/0x951 [ 27.403197] [] irq_exit+0x165/0x190 [ 27.408443] [] smp_apic_timer_interrupt+0x7b/0xa0 [ 27.414902] [] apic_timer_interrupt+0xa0/0xb0 [ 27.421012] [ 27.423046] [] ? native_safe_halt+0x6/0x10 [ 27.428914] [] ? trace_hardirqs_on+0xd/0x10 [ 27.434853] [] default_idle+0x55/0x360 [ 27.440363] [] arch_cpu_idle+0xa/0x10 [ 27.445797] [] default_idle_call+0x36/0x60 [ 27.451662] [] cpu_startup_entry+0x2b0/0x380 [ 27.457695] [] ? cpu_in_idle+0x20/0x20 [ 27.463205] [] ? clockevents_register_device+0x123/0x200 [ 27.470277] [] start_secondary+0x303/0x3e0 [ 27.476130] [] ? set_cpu_sibling_map+0x11f0/0x11f0 [ 27.483129] Dumping ftrace buffer: [ 27.486681] (ftrace buffer empty) [ 27.490365] Kernel Offset: disabled [ 27.493973] Rebooting in 86400 seconds..