[....] Starting enhanced syslogd: rsyslogd[ 13.306292] audit: type=1400 audit(1520353594.961:4): avc: denied { syslog } for pid=3646 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 '10.128.0.30' (ECDSA) to the list of known hosts. 2018/03/06 16:26:48 parsed 1 programs 2018/03/06 16:26:48 executed programs: 0 syzkaller login: [ 26.933841] IPVS: Creating netns size=2536 id=1 [ 26.966253] IPVS: Creating netns size=2536 id=2 [ 27.000125] IPVS: Creating netns size=2536 id=3 [ 27.040084] IPVS: Creating netns size=2536 id=4 [ 27.084906] IPVS: Creating netns size=2536 id=5 [ 27.124191] IPVS: Creating netns size=2536 id=6 [ 27.189405] IPVS: Creating netns size=2536 id=7 [ 27.254530] IPVS: Creating netns size=2536 id=8 [ 32.664578] IPVS: Creating netns size=2536 id=9 [ 32.696720] IPVS: Creating netns size=2536 id=10 [ 32.713782] IPVS: Creating netns size=2536 id=11 [ 32.759253] IPVS: Creating netns size=2536 id=12 [ 32.811090] IPVS: Creating netns size=2536 id=13 [ 32.850022] IPVS: Creating netns size=2536 id=14 [ 32.901710] IPVS: Creating netns size=2536 id=15 [ 32.972202] IPVS: Creating netns size=2536 id=16 [ 33.033135] ip (6198) used greatest stack depth: 24496 bytes left [ 33.120350] ip (6248) used greatest stack depth: 23760 bytes left 2018/03/06 16:26:57 executed programs: 24 [ 37.246661] ------------[ cut here ]------------ [ 37.251501] WARNING: CPU: 1 PID: 852 at net/xfrm/xfrm_state.c:2167 xfrm_state_fini+0x2a0/0x340 [ 37.260367] Kernel panic - not syncing: panic_on_warn set ... [ 37.260367] [ 37.267711] CPU: 1 PID: 852 Comm: kworker/u4:2 Not tainted 4.9.86-gb324a70 #58 [ 37.275044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.284377] Workqueue: netns cleanup_net [ 37.288524] ffff8801d6987938 ffffffff81d956f9 ffffffff83a480c0 ffff8801d6987a10 [ 37.296494] ffffffff83f43500 ffffffff833df440 0000000000000009 ffff8801d6987a00 [ 37.304462] ffffffff8142f531 0000000041b58ab3 ffffffff8418b430 ffffffff8142f375 [ 37.312426] Call Trace: [ 37.314987] [] dump_stack+0xc1/0x128 [ 37.320327] [] ? xfrm_state_fini+0x2a0/0x340 [ 37.326357] [] panic+0x1bc/0x3a8 [ 37.331342] [] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7 [ 37.339550] [] ? load_image_and_restore+0xf9/0xf9 [ 37.346013] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 37.352821] [] ? __warn+0x1a9/0x1e0 [ 37.358068] [] ? xfrm_state_fini+0x2a0/0x340 [ 37.364091] [] __warn+0x1c4/0x1e0 [ 37.369162] [] warn_slowpath_null+0x2c/0x40 [ 37.375101] [] xfrm_state_fini+0x2a0/0x340 [ 37.380957] [] ? xfrm_policy_fini+0x310/0x310 [ 37.387068] [] xfrm_net_exit+0x2d/0x30 [ 37.392578] [] ops_exit_list.isra.4+0xae/0x150 [ 37.398781] [] cleanup_net+0x31d/0x610 [ 37.404287] [] ? net_drop_ns+0x80/0x80 [ 37.409796] [] ? __lock_is_held+0xa1/0xf0 [ 37.415994] [] ? __lock_is_held+0xa1/0xf0 [ 37.421763] [] process_one_work+0x7e0/0x1610 [ 37.427794] [] ? process_one_work+0x72c/0x1610 [ 37.433997] [] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 37.440458] [] worker_thread+0xe0/0x10d0 [ 37.446137] [] ? __schedule+0x683/0x1ba0 [ 37.451820] [] kthread+0x26d/0x300 [ 37.456979] [] ? process_one_work+0x1610/0x1610 [ 37.463265] [] ? kthread_park+0xa0/0xa0 [ 37.468863] [] ? kthread_park+0xa0/0xa0 [ 37.474455] [] ret_from_fork+0x5c/0x70 [ 37.480562] Dumping ftrace buffer: [ 37.484108] (ftrace buffer empty) [ 37.487788] Kernel Offset: disabled [ 37.491397] Rebooting in 86400 seconds..