[....] Starting enhanced syslogd: rsyslogd[ 9.858862] audit: type=1400 audit(1514882722.822:4): avc: denied { syslog } for pid=3170 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] 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 '10.128.15.212' (ECDSA) to the list of known hosts. 2018/01/02 08:45:32 parsed 1 programs 2018/01/02 08:45:32 executed programs: 0 syzkaller login: [ 19.815416] audit: type=1400 audit(1514882732.772:5): avc: denied { sys_admin } for pid=3332 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 [ 19.835616] IPVS: Creating netns size=2536 id=1 [ 19.856817] IPVS: Creating netns size=2536 id=2 [ 19.867863] IPVS: Creating netns size=2536 id=3 [ 19.878064] audit: type=1400 audit(1514882732.842:6): avc: denied { sys_chroot } for pid=3335 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 [ 19.907246] ------------[ cut here ]------------ [ 19.912007] WARNING: CPU: 0 PID: 3359 at lib/vsprintf.c:1941 set_precision+0x144/0x170 [ 19.913004] IPVS: Creating netns size=2536 id=4 [ 19.924653] precision 65008 too large[ 19.928247] Kernel panic - not syncing: panic_on_warn set ... [ 19.928247] [ 19.935593] CPU: 0 PID: 3359 Comm: syz-executor0 Not tainted 4.9.73-gf3f3457 #1 [ 19.943002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.952330] ffff8801c720f728 ffffffff81d922b9 ffffffff83a46d00 ffff8801c720f800 [ 19.960284] ffffffff83c0f800 ffffffff81db35b4 0000000000000009 ffff8801c720f7f0 [ 19.968234] ffffffff8142d741 0000000041b58ab3 ffffffff84189000 ffffffff8142d585 [ 19.976187] Call Trace: [ 19.978742] [] dump_stack+0xc1/0x128 [ 19.984070] [] ? set_precision+0x144/0x170 [ 19.989922] [] panic+0x1bc/0x3a8 [ 19.994917] [] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7 [ 20.003115] [] ? vprintk_emit+0x3ad/0x750 [ 20.008880] [] ? __warn+0x1a9/0x1e0 [ 20.014124] [] ? set_precision+0x144/0x170 [ 20.019971] [] __warn+0x1c4/0x1e0 [ 20.025037] [] warn_slowpath_fmt+0xc4/0x110 [ 20.030975] [] ? __warn+0x1e0/0x1e0 [ 20.036219] [] ? avc_has_perm+0x378/0x4f0 [ 20.041984] [] ? noop_count+0x40/0x40 [ 20.047400] [] ? check_usage_backwards+0x171/0x300 [ 20.053955] [] set_precision+0x144/0x170 [ 20.059632] [] vsnprintf+0x8ae/0x16d0 [ 20.065058] [] ? pointer+0xa90/0xa90 [ 20.070388] [] ? mark_lock+0x99b/0xfd0 [ 20.075890] [] vscnprintf+0x2d/0x60 [ 20.081131] [] vprintk_emit+0xf1/0x750 [ 20.086633] [] vprintk+0x28/0x30 [ 20.091615] [] vprintk_default+0x1d/0x30 [ 20.097291] [] printk+0xb7/0xe2 [ 20.102186] [] ? load_image_and_restore+0xf9/0xf9 [ 20.108646] [] dns_resolver_preparse+0x743/0x810 [ 20.115023] [] ? dns_resolver_free_preparse+0x40/0x40 [ 20.121829] [] ? dns_resolver_free_preparse+0x40/0x40 [ 20.128634] [] key_create_or_update+0x35e/0xa60 [ 20.134920] [] ? key_type_lookup+0xd0/0xd0 [ 20.140769] [] ? lookup_user_key+0x113/0xd10 [ 20.146795] [] ? __check_object_size+0x174/0x3a9 [ 20.153165] [] ? 0xffffffff810002b8 [ 20.158409] [] SyS_add_key+0x1b1/0x390 [ 20.163910] [] ? key_get_type_from_user.constprop.10+0xe0/0xe0 [ 20.171499] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 20.178043] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 20.184937] Dumping ftrace buffer: [ 20.188441] (ftrace buffer empty) [ 20.192115] Kernel Offset: disabled [ 20.195708] Rebooting in 86400 seconds..