[....] Starting enhanced syslogd: rsyslogd[ 10.341503] audit: type=1400 audit(1516136240.988:4): avc: denied { syslog } for pid=3181 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 '10.128.0.13' (ECDSA) to the list of known hosts.
executing program
executing program
executing program
syzkaller login: [ 31.956256] ------------[ cut here ]------------
[ 31.957055] WARNING: CPU: 1 PID: 0 at net/ipv4/af_inet.c:167 inet_sock_destruct+0x5f6/0x7b0
[ 31.958190] Kernel panic - not syncing: panic_on_warn set ...
[ 31.958190]
[ 31.959159] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.9.76-g8dec074 #13
[ 31.960067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 31.961289] ffff8801db307cb8 ffffffff81d93169 ffffffff83a47180 ffff8801db307d90
[ 31.962513] ffffffff83f2e500 ffffffff832e9cb6 0000000000000009 ffff8801db307d80
[ 31.963688] ffffffff8142e371 0000000041b58ab3 ffffffff84189690 ffffffff8142e1b5
[ 31.964832] Call Trace:
[ 31.965187] <IRQ> [ 31.965477] [<ffffffff81d93169>] dump_stack+0xc1/0x128
[ 31.966216] [<ffffffff832e9cb6>] ? inet_sock_destruct+0x5f6/0x7b0
[ 31.967063] [<ffffffff8142e371>] panic+0x1bc/0x3a8
[ 31.967733] [<ffffffff8142e1b5>] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7
[ 31.968831] [<ffffffff8142efd5>] ? load_image_and_restore+0xf9/0xf9
[ 31.969689] [<ffffffff811300d9>] ? __warn+0x1a9/0x1e0
[ 31.970403] [<ffffffff832e9cb6>] ? inet_sock_destruct+0x5f6/0x7b0
[ 31.971258] [<ffffffff811300f4>] __warn+0x1c4/0x1e0
[ 31.971952] [<ffffffff8113035c>] warn_slowpath_null+0x2c/0x40
[ 31.972741] [<ffffffff832e9cb6>] inet_sock_destruct+0x5f6/0x7b0
[ 31.973552] [<ffffffff8123a72d>] ? trace_hardirqs_on+0xd/0x10
[ 31.974353] [<ffffffff832e96c0>] ? ipv4_mib_init_net+0x560/0x560
[ 31.975177] [<ffffffff835827e2>] l2tp_tunnel_destruct+0x352/0x5a0
[ 31.976026] [<ffffffff8358263a>] ? l2tp_tunnel_destruct+0x1aa/0x5a0
[ 31.980399] [<ffffffff83582490>] ? l2tp_tunnel_del_work+0x460/0x460
[ 31.986858] [<ffffffff82ee3033>] __sk_destruct+0x53/0x570
[ 31.992449] [<ffffffff812920a8>] rcu_process_callbacks+0x898/0x1300
[ 31.998907] [<ffffffff81292187>] ? rcu_process_callbacks+0x977/0x1300
[ 32.005538] [<ffffffff82ee2fe0>] ? __sk_dst_check+0x240/0x240
[ 32.011477] [<ffffffff838b76c6>] __do_softirq+0x206/0x951
[ 32.017064] [<ffffffff81145b75>] irq_exit+0x165/0x190
[ 32.022305] [<ffffffff838b62db>] smp_apic_timer_interrupt+0x7b/0xa0
[ 32.028767] [<ffffffff838b2560>] apic_timer_interrupt+0xa0/0xb0
[ 32.034878] <EOI> [ 32.036910] [<ffffffff838af6e6>] ? native_safe_halt+0x6/0x10
[ 32.042775] [<ffffffff8123a72d>] ? trace_hardirqs_on+0xd/0x10
[ 32.048713] [<ffffffff838aed15>] default_idle+0x55/0x360
[ 32.054219] [<ffffffff8106bbca>] arch_cpu_idle+0xa/0x10
[ 32.059638] [<ffffffff838afb26>] default_idle_call+0x36/0x60
[ 32.065486] [<ffffffff812254b0>] cpu_startup_entry+0x2b0/0x380
[ 32.071510] [<ffffffff81225200>] ? cpu_in_idle+0x20/0x20
[ 32.077018] [<ffffffff812d0a63>] ? clockevents_register_device+0x123/0x200
[ 32.084085] [<ffffffff810af803>] start_secondary+0x303/0x3e0
[ 32.089935] [<ffffffff810af500>] ? set_cpu_sibling_map+0x11f0/0x11f0
[ 32.096939] Dumping ftrace buffer:
[ 32.100464] (ftrace buffer empty)
[ 32.104145] Kernel Offset: disabled
[ 32.107750] Rebooting in 86400 seconds..