[....] Starting enhanced syslogd: rsyslogd[ 10.418382] audit: type=1400 audit(1514789460.930:4): avc: denied { syslog } for pid=3173 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 '10.128.15.248' (ECDSA) to the list of known hosts. 2018/01/01 06:51:09 parsed 1 programs 2018/01/01 06:51:09 executed programs: 0 syzkaller login: [ 19.255535] audit: type=1400 audit(1514789469.770:5): avc: denied { sys_admin } for pid=3326 comm="syz-executor4" 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 [ 19.276848] IPVS: Creating netns size=2536 id=1 [ 19.298295] IPVS: Creating netns size=2536 id=2 [ 19.314317] audit: type=1400 audit(1514789469.830:6): avc: denied { sys_chroot } for pid=3328 comm="syz-executor4" 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 [ 19.342716] ------------[ cut here ]------------ [ 19.347482] WARNING: CPU: 0 PID: 3351 at lib/vsprintf.c:1941 set_precision+0x144/0x170 [ 19.355501] precision 65069 too large[ 19.359091] Kernel panic - not syncing: panic_on_warn set ... [ 19.359091] [ 19.366433] CPU: 0 PID: 3351 Comm: syz-executor4 Not tainted 4.9.73-gf3f3457 #1 [ 19.373845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.383170] ffff8801c8107728 ffffffff81d922b9 ffffffff83a46d00 ffff8801c8107800 [ 19.391132] ffffffff83c0f800 ffffffff81db35b4 0000000000000009 ffff8801c81077f0 [ 19.399088] ffffffff8142d741 0000000041b58ab3 ffffffff84189000 ffffffff8142d585 [ 19.407051] Call Trace: [ 19.409609] [] dump_stack+0xc1/0x128 [ 19.414952] [] ? set_precision+0x144/0x170 [ 19.420804] [] panic+0x1bc/0x3a8 [ 19.425787] [] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7 [ 19.433995] [] ? vprintk_emit+0x3ad/0x750 [ 19.440206] [] ? __warn+0x1a9/0x1e0 [ 19.445451] [] ? set_precision+0x144/0x170 [ 19.451301] [] __warn+0x1c4/0x1e0 [ 19.456372] [] warn_slowpath_fmt+0xc4/0x110 [ 19.463103] [] ? __warn+0x1e0/0x1e0 [ 19.468349] [] ? avc_has_perm+0x378/0x4f0 [ 19.474126] [] ? noop_count+0x40/0x40 [ 19.479544] [] ? check_usage_backwards+0x171/0x300 [ 19.486092] [] set_precision+0x144/0x170 [ 19.491770] [] vsnprintf+0x8ae/0x16d0 [ 19.497186] [] ? pointer+0xa90/0xa90 [ 19.502528] [] ? mark_lock+0x99b/0xfd0 [ 19.508033] [] vscnprintf+0x2d/0x60 [ 19.513277] [] vprintk_emit+0xf1/0x750 [ 19.518792] [] vprintk+0x28/0x30 [ 19.523778] [] vprintk_default+0x1d/0x30 [ 19.529456] [] printk+0xb7/0xe2 [ 19.534353] [] ? load_image_and_restore+0xf9/0xf9 [ 19.540815] [] dns_resolver_preparse+0x743/0x810 [ 19.547186] [] ? dns_resolver_free_preparse+0x40/0x40 [ 19.553993] [] ? dns_resolver_free_preparse+0x40/0x40 [ 19.560803] [] key_create_or_update+0x35e/0xa60 [ 19.567089] [] ? key_type_lookup+0xd0/0xd0 [ 19.573881] [] ? lookup_user_key+0x113/0xd10 [ 19.579914] [] ? __check_object_size+0x174/0x3a9 [ 19.586297] [] ? 0xffffffff810002b8 [ 19.591540] [] SyS_add_key+0x1b1/0x390 [ 19.597046] [] ? key_get_type_from_user.constprop.10+0xe0/0xe0 [ 19.604636] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 19.611184] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 19.618247] Dumping ftrace buffer: [ 19.621756] (ftrace buffer empty) [ 19.625452] Kernel Offset: disabled [ 19.629062] Rebooting in 86400 seconds..