[....] Starting enhanced syslogd: rsyslogd[ 12.108244] audit: type=1400 audit(1516724119.352:4): avc: denied { syslog } for pid=3169 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 '10.128.15.201' (ECDSA) to the list of known hosts. 2018/01/23 16:15:31 parsed 1 programs 2018/01/23 16:15:31 executed programs: 0 syzkaller login: [ 24.190318] IPVS: Creating netns size=2536 id=1 [ 24.201148] IPVS: Creating netns size=2536 id=2 [ 24.212366] IPVS: Creating netns size=2536 id=3 [ 24.240629] IPVS: Creating netns size=2536 id=4 [ 24.255905] IPVS: Creating netns size=2536 id=5 [ 24.271161] IPVS: Creating netns size=2536 id=6 [ 24.296830] IPVS: Creating netns size=2536 id=7 [ 24.321016] IPVS: Creating netns size=2536 id=8 [ 28.014282] ------------[ cut here ]------------ [ 28.019096] WARNING: CPU: 1 PID: 17 at net/ipv4/af_inet.c:167 inet_sock_destruct+0x5f6/0x7b0 [ 28.027704] Kernel panic - not syncing: panic_on_warn set ... [ 28.027704] [ 28.035058] CPU: 1 PID: 17 Comm: ksoftirqd/1 Not tainted 4.9.77-ge12a9c4 #27 [ 28.042229] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.051819] ffff8801d9827a40 ffffffff81d941c9 ffffffff83a47bc0 ffff8801d9827b18 [ 28.059818] ffffffff83f2f000 ffffffff832ebc36 0000000000000009 ffff8801d9827b08 [ 28.067816] ffffffff8142f3c1 0000000041b58ab3 ffffffff8418ab70 ffffffff8142f205 [ 28.075799] Call Trace: [ 28.078364] [] dump_stack+0xc1/0x128 [ 28.083701] [] ? inet_sock_destruct+0x5f6/0x7b0 [ 28.090002] [] panic+0x1bc/0x3a8 [ 28.094991] [] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7 [ 28.103241] [] ? load_image_and_restore+0xf9/0xf9 [ 28.109751] [] ? debug_object_deactivate+0x3c0/0x3c0 [ 28.116521] [] ? __warn+0x1a9/0x1e0 [ 28.121806] [] ? inet_sock_destruct+0x5f6/0x7b0 [ 28.128126] [] __warn+0x1c4/0x1e0 [ 28.133228] [] warn_slowpath_null+0x2c/0x40 [ 28.139206] [] inet_sock_destruct+0x5f6/0x7b0 [ 28.145374] [] ? ipv4_mib_init_net+0x560/0x560 [ 28.151614] [] l2tp_tunnel_destruct+0x352/0x5a0 [ 28.157938] [] ? l2tp_tunnel_destruct+0x1aa/0x5a0 [ 28.164421] [] ? l2tp_tunnel_del_work+0x460/0x460 [ 28.170890] [] __sk_destruct+0x53/0x570 [ 28.176488] [] rcu_process_callbacks+0x898/0x1300 [ 28.182951] [] ? rcu_process_callbacks+0x977/0x1300 [ 28.189589] [] ? __sk_dst_check+0x240/0x240 [ 28.195546] [] __do_softirq+0x206/0x951 [ 28.201143] [] ? takeover_tasklets+0x760/0x760 [ 28.207347] [] run_ksoftirqd+0x2e/0x60 [ 28.212866] [] smpboot_thread_fn+0x5c1/0x8f0 [ 28.218914] [] ? sort_range+0x30/0x30 [ 28.224336] [] ? __kthread_parkme+0xcf/0x240 [ 28.230377] [] ? schedule+0x89/0x1b0 [ 28.235710] [] ? __kthread_parkme+0x175/0x240 [ 28.241834] [] kthread+0x26d/0x300 [ 28.246993] [] ? sort_range+0x30/0x30 [ 28.252415] [] ? kthread_park+0xa0/0xa0 [ 28.258009] [] ? kthread_park+0xa0/0xa0 [ 28.263604] [] ? kthread_park+0xa0/0xa0 [ 28.269201] [] ret_from_fork+0x59/0x70 [ 28.275272] Dumping ftrace buffer: [ 28.278820] (ftrace buffer empty) [ 28.282503] Kernel Offset: disabled [ 28.286105] Rebooting in 86400 seconds..