[....] Starting enhanced syslogd: rsyslogd[ 10.389876] audit: type=1400 audit(1514878154.170:4): avc: denied { syslog } for pid=3186 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 '10.128.15.192' (ECDSA) to the list of known hosts. 2018/01/02 07:29:42 parsed 1 programs 2018/01/02 07:29:42 executed programs: 0 syzkaller login: [ 38.456632] audit: type=1400 audit(1514878182.240:5): avc: denied { sys_admin } for pid=3357 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 [ 38.474378] IPVS: Creating netns size=2536 id=1 [ 38.501594] IPVS: Creating netns size=2536 id=2 [ 38.506591] audit: type=1400 here ]------------ :6): avc: denied { sys_chroot } for pid=3360 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 [ 38.509442] ------------[ cut here ]------------ [ 38.535851] WARNING: CPU: 1 PID: 3380 at lib/vsprintf.c:1941 set_precision+0x144/0x170 [ 38.543869] precision 65137 too large[ 38.547458] Kernel panic - not syncing: panic_on_warn set ... [ 38.547458] [ 38.554798] CPU: 1 PID: 3380 Comm: syz-executor0 Not tainted 4.9.73-gf3f3457 #1 [ 38.562210] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.571531] ffff8801c6497728 ffffffff81d922b9 ffffffff83a46d00 ffff8801c6497800 [ 38.579473] ffffffff83c0f800 ffffffff81db35b4 0000000000000009 ffff8801c64977f0 [ 38.587416] ffffffff8142d741 0000000041b58ab3 ffffffff84189000 ffffffff8142d585 [ 38.595356] Call Trace: [ 38.597907] [] dump_stack+0xc1/0x128 [ 38.603234] [] ? set_precision+0x144/0x170 [ 38.609083] [] panic+0x1bc/0x3a8 [ 38.614063] [] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7 [ 38.622254] [] ? vprintk_emit+0x3ad/0x750 [ 38.628017] [] ? __warn+0x1a9/0x1e0 [ 38.633257] [] ? set_precision+0x144/0x170 [ 38.639104] [] __warn+0x1c4/0x1e0 [ 38.644170] [] warn_slowpath_fmt+0xc4/0x110 [ 38.650102] [] ? __warn+0x1e0/0x1e0 [ 38.655344] [] ? avc_has_perm+0x378/0x4f0 [ 38.661108] [] ? noop_count+0x40/0x40 [ 38.666522] [] ? check_usage_backwards+0x171/0x300 [ 38.673063] [] set_precision+0x144/0x170 [ 38.678737] [] vsnprintf+0x8ae/0x16d0 [ 38.684149] [] ? pointer+0xa90/0xa90 [ 38.689485] [] ? mark_lock+0x99b/0xfd0 [ 38.694984] [] vscnprintf+0x2d/0x60 [ 38.700221] [] vprintk_emit+0xf1/0x750 [ 38.705728] [] vprintk+0x28/0x30 [ 38.710706] [] vprintk_default+0x1d/0x30 [ 38.716378] [] printk+0xb7/0xe2 [ 38.721271] [] ? load_image_and_restore+0xf9/0xf9 [ 38.727729] [] dns_resolver_preparse+0x743/0x810 [ 38.734097] [] ? dns_resolver_free_preparse+0x40/0x40 [ 38.740901] [] ? dns_resolver_free_preparse+0x40/0x40 [ 38.747706] [] key_create_or_update+0x35e/0xa60 [ 38.753990] [] ? key_type_lookup+0xd0/0xd0 [ 38.759838] [] ? lookup_user_key+0x113/0xd10 [ 38.765861] [] ? __check_object_size+0x174/0x3a9 [ 38.772230] [] ? 0xffffffff810002b8 [ 38.777470] [] SyS_add_key+0x1b1/0x390 [ 38.782974] [] ? key_get_type_from_user.constprop.10+0xe0/0xe0 [ 38.790560] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 38.797102] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 38.803687] Dumping ftrace buffer: [ 38.807189] (ftrace buffer empty) [ 38.810867] Kernel Offset: disabled [ 38.814456] Rebooting in 86400 seconds..