[....] Starting enhanced syslogd: rsyslogd[ 11.308507] audit: type=1400 audit(1514860434.275:4): avc: denied { syslog } for pid=3162 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 '10.128.0.7' (ECDSA) to the list of known hosts. 2018/01/02 02:34:02 parsed 1 programs 2018/01/02 02:34:02 executed programs: 0 syzkaller login: [ 19.953364] audit: type=1400 audit(1514860442.915:5): avc: denied { sys_admin } for pid=3318 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 [ 19.983693] IPVS: Creating netns size=2536 id=1 [ 20.004623] IPVS: Creating netns size=2536 id=2 [ 20.015515] IPVS: Creating netns size=2536 id=3 [ 20.020554] audit: type=1400 audit(1514860442.985:6): avc: denied { sys_chroot } for pid=3321 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 [ 20.031205] ------------[ cut here ]------------ [ 20.049718] WARNING: CPU: 1 PID: 3343 at lib/vsprintf.c:1941 set_precision+0x144/0x170 [ 20.057742] precision 65180 too large[ 20.061333] Kernel panic - not syncing: panic_on_warn set ... [ 20.061333] [ 20.068674] CPU: 1 PID: 3343 Comm: syz-executor4 Not tainted 4.9.73-gf3f3457 #1 [ 20.076088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.085410] ffff8801c7c67728 ffffffff81d922b9 ffffffff83a46d00 ffff8801c7c67800 [ 20.093354] ffffffff83c0f800 ffffffff81db35b4 0000000000000009 ffff8801c7c677f0 [ 20.101299] ffffffff8142d741 0000000041b58ab3 ffffffff84189000 ffffffff8142d585 [ 20.109240] Call Trace: [ 20.111794] [] dump_stack+0xc1/0x128 [ 20.117121] [] ? set_precision+0x144/0x170 [ 20.122971] [] panic+0x1bc/0x3a8 [ 20.127951] [] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7 [ 20.136142] [] ? vprintk_emit+0x3ad/0x750 [ 20.141906] [] ? __warn+0x1a9/0x1e0 [ 20.147145] [] ? set_precision+0x144/0x170 [ 20.152992] [] __warn+0x1c4/0x1e0 [ 20.158057] [] warn_slowpath_fmt+0xc4/0x110 [ 20.163990] [] ? __warn+0x1e0/0x1e0 [ 20.169231] [] ? avc_has_perm+0x378/0x4f0 [ 20.175000] [] ? __lock_acquire+0x629/0x3640 [ 20.181024] [] set_precision+0x144/0x170 [ 20.186700] [] vsnprintf+0x8ae/0x16d0 [ 20.192129] [] ? pointer+0xa90/0xa90 [ 20.197458] [] vscnprintf+0x2d/0x60 [ 20.202700] [] vprintk_emit+0xf1/0x750 [ 20.208199] [] vprintk+0x28/0x30 [ 20.213178] [] vprintk_default+0x1d/0x30 [ 20.218854] [] printk+0xb7/0xe2 [ 20.223746] [] ? load_image_and_restore+0xf9/0xf9 [ 20.230204] [] dns_resolver_preparse+0x743/0x810 [ 20.236571] [] ? dns_resolver_free_preparse+0x40/0x40 [ 20.243377] [] ? dns_resolver_free_preparse+0x40/0x40 [ 20.250179] [] key_create_or_update+0x35e/0xa60 [ 20.256459] [] ? key_type_lookup+0xd0/0xd0 [ 20.262323] [] ? lookup_user_key+0x113/0xd10 [ 20.268348] [] ? __check_object_size+0x174/0x3a9 [ 20.274715] [] ? 0xffffffff810002b8 [ 20.279957] [] SyS_add_key+0x1b1/0x390 [ 20.285458] [] ? key_get_type_from_user.constprop.10+0xe0/0xe0 [ 20.293042] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 20.299586] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 20.306165] Dumping ftrace buffer: [ 20.309669] (ftrace buffer empty) [ 20.313341] Kernel Offset: disabled [ 20.316929] Rebooting in 86400 seconds..