[....] Starting enhanced syslogd: rsyslogd[ 10.795421] audit: type=1400 audit(1514724871.361:4): avc: denied { syslog } for pid=3174 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 '10.128.15.202' (ECDSA) to the list of known hosts. 2017/12/31 12:55:00 parsed 1 programs 2017/12/31 12:55:00 executed programs: 0 syzkaller login: [ 40.260734] audit: type=1400 audit(1514724900.821:5): avc: denied { sys_admin } for pid=3351 comm="syz-executor0" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 40.267084] IPVS: Creating netns size=2536 id=1 [ 40.323916] audit: type=1400 audit(1514724900.891:6): avc: denied { sys_chroot } for pid=3354 comm="syz-executor0" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 40.354024] ------------[ cut here ]------------ [ 40.358801] WARNING: CPU: 0 PID: 3354 at kernel/signal.c:334 task_participate_group_stop+0x224/0x2d0 [ 40.368037] Kernel panic - not syncing: panic_on_warn set ... [ 40.368037] [ 40.375365] CPU: 0 PID: 3354 Comm: syz-executor0 Not tainted 4.9.73-gf3f3457 #11 [ 40.382869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.392189] ffff8801cb62fa98 ffffffff81d922b9 ffffffff83a46d00 ffff8801cb62fb70 [ 40.400132] ffffffff83a4d800 ffffffff8115a9c4 0000000000000009 ffff8801cb62fb60 [ 40.408074] ffffffff8142d741 0000000041b58ab3 ffffffff84189000 ffffffff8142d585 [ 40.416010] Call Trace: [ 40.418563] [] dump_stack+0xc1/0x128 [ 40.423895] [] ? task_participate_group_stop+0x224/0x2d0 [ 40.430958] [] panic+0x1bc/0x3a8 [ 40.435946] [] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7 [ 40.444135] [] ? load_image_and_restore+0xf9/0xf9 [ 40.450592] [] ? __warn+0x1a9/0x1e0 [ 40.455833] [] ? task_participate_group_stop+0x224/0x2d0 [ 40.462896] [] __warn+0x1c4/0x1e0 [ 40.467961] [] ? recalc_sigpending_tsk+0x102/0x150 [ 40.474502] [] warn_slowpath_null+0x2c/0x40 [ 40.480437] [] task_participate_group_stop+0x224/0x2d0 [ 40.487325] [] ? do_signal_stop+0x38a/0x7b0 [ 40.493257] [] do_signal_stop+0x19b/0x7b0 [ 40.499017] [] get_signal+0x430/0x14e0 [ 40.504520] [] ? free_object+0x108/0x1b0 [ 40.510203] [] do_signal+0x87/0x1a00 [ 40.515532] [] ? hrtimer_run_queues+0x210/0x210 [ 40.521814] [] ? ktime_get_ts64+0x1ea/0x2c0 [ 40.527746] [] ? setup_sigcontext+0x7d0/0x7d0 [ 40.533854] [] ? __compat_get_timespec+0xe1/0x150 [ 40.540311] [] ? compat_SyS_nanosleep+0x198/0x390 [ 40.546772] [] ? compat_convert_timespec+0x200/0x200 [ 40.553489] [] ? compat_SyS_clock_gettime+0x132/0x1a0 [ 40.560292] [] ? __do_page_fault+0x3bd/0xd40 [ 40.566314] [] ? exit_to_usermode_loop+0xac/0x120 [ 40.572768] [] exit_to_usermode_loop+0xe1/0x120 [ 40.579047] [] do_fast_syscall_32+0x5de/0x890 [ 40.585161] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.591791] [] entry_SYSENTER_compat+0x51/0x60 [ 41.659472] Shutting down cpus with NMI [ 41.663832] Dumping ftrace buffer: [ 41.667425] (ftrace buffer empty) [ 41.671099] Kernel Offset: disabled [ 41.674703] Rebooting in 86400 seconds..