[....] Starting enhanced syslogd: rsyslogd[ 13.367727] audit: type=1400 audit(1514837710.928:4): 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 '10.128.0.31' (ECDSA) to the list of known hosts. 2018/01/01 20:15:23 parsed 1 programs 2018/01/01 20:15:23 executed programs: 0 syzkaller login: [ 26.207341] audit: type=1400 audit(1514837723.768:5): avc: denied { sys_admin } for pid=3335 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 [ 26.237825] IPVS: Creating netns size=2536 id=1 [ 26.264692] IPVS: Creating netns size=2536 id=2 [ 26.276271] IPVS: Creating netns size=2536 id=3 [ 26.286423] audit: type=1400 audit(1514837723.848:6): avc: denied { sys_chroot } for pid=3338 comm="syz-executor5" 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 [ 26.316621] ------------[ cut here ]------------ [ 26.321389] WARNING: CPU: 0 PID: 3361 at lib/vsprintf.c:1941 set_precision+0x144/0x170 [ 26.329410] precision 64921 too large[ 26.333000] Kernel panic - not syncing: panic_on_warn set ... [ 26.333000] [ 26.340381] CPU: 0 PID: 3361 Comm: syz-executor5 Not tainted 4.9.73-gf3f3457 #1 [ 26.347794] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.357117] ffff8801c956f728 ffffffff81d922b9 ffffffff83a46d00 ffff8801c956f800 [ 26.365077] ffffffff83c0f800 ffffffff81db35b4 0000000000000009 ffff8801c956f7f0 [ 26.373031] ffffffff8142d741 0000000041b58ab3 ffffffff84189000 ffffffff8142d585 [ 26.381008] Call Trace: [ 26.383570] [] dump_stack+0xc1/0x128 [ 26.388902] [] ? set_precision+0x144/0x170 [ 26.394753] [] panic+0x1bc/0x3a8 [ 26.399742] [] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7 [ 26.407940] [] ? vprintk_emit+0x3ad/0x750 [ 26.413711] [] ? __warn+0x1a9/0x1e0 [ 26.418952] [] ? set_precision+0x144/0x170 [ 26.424802] [] __warn+0x1c4/0x1e0 [ 26.429871] [] warn_slowpath_fmt+0xc4/0x110 [ 26.435815] [] ? __warn+0x1e0/0x1e0 [ 26.441058] [] ? avc_has_perm+0x378/0x4f0 [ 26.446823] [] ? noop_count+0x40/0x40 [ 26.452240] [] ? check_usage_backwards+0x171/0x300 [ 26.458792] [] set_precision+0x144/0x170 [ 26.464466] [] vsnprintf+0x8ae/0x16d0 [ 26.469882] [] ? pointer+0xa90/0xa90 [ 26.475212] [] ? mark_lock+0x99b/0xfd0 [ 26.480714] [] vscnprintf+0x2d/0x60 [ 26.485957] [] vprintk_emit+0xf1/0x750 [ 26.491466] [] vprintk+0x28/0x30 [ 26.496447] [] vprintk_default+0x1d/0x30 [ 26.502126] [] printk+0xb7/0xe2 [ 26.507034] [] ? load_image_and_restore+0xf9/0xf9 [ 26.513493] [] dns_resolver_preparse+0x743/0x810 [ 26.519863] [] ? dns_resolver_free_preparse+0x40/0x40 [ 26.526667] [] ? dns_resolver_free_preparse+0x40/0x40 [ 26.533474] [] key_create_or_update+0x35e/0xa60 [ 26.539758] [] ? key_type_lookup+0xd0/0xd0 [ 26.545608] [] ? lookup_user_key+0x113/0xd10 [ 26.551638] [] ? __check_object_size+0x174/0x3a9 [ 26.558009] [] ? 0xffffffff810002b8 [ 26.563257] [] SyS_add_key+0x1b1/0x390 [ 26.568761] [] ? key_get_type_from_user.constprop.10+0xe0/0xe0 [ 26.576349] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 26.582893] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 26.589862] Dumping ftrace buffer: [ 26.593375] (ftrace buffer empty) [ 26.597054] Kernel Offset: disabled [ 26.600647] Rebooting in 86400 seconds..