[....] Starting enhanced syslogd: rsyslogd[ 10.263607] audit: type=1400 audit(1514809621.192:4): 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[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.15.208' (ECDSA) to the list of known hosts. 2018/01/01 12:27:10 parsed 1 programs 2018/01/01 12:27:10 executed programs: 0 syzkaller login: [ 20.063538] audit: type=1400 audit(1514809630.992:5): avc: denied { sys_admin } for pid=3325 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 [ 20.086650] IPVS: Creating netns size=2536 id=1 [ 20.108248] IPVS: Creating netns size=2536 id=2 [ 20.131317] IPVS: Creating netns size=2536 id=3 [ 20.148913] audit: type=1400 audit(1514809631.082:6): avc: denied { sys_chroot } for pid=3328 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 [ 20.177179] ------------[ cut here ]------------ [ 20.181990] WARNING: CPU: 1 PID: 3352 at lib/vsprintf.c:1941 set_precision+0x144/0x170 [ 20.183101] Option ' [ 20.190170] Option ' [ 20.197865] Option ' [ 20.204413] Option ' precision 65275 too large[ 20.542254] Kernel panic - not syncing: panic_on_warn set ... [ 20.542254] [ 20.549620] CPU: 1 PID: 3352 Comm: syz-executor0 Not tainted 4.9.73-gf3f3457 #1 [ 20.557035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.566373] ffff8801c9877728 ffffffff81d922b9 ffffffff83a46d00 ffff8801c9877800 [ 20.574329] ffffffff83c0f800 ffffffff81db35b4 0000000000000009 ffff8801c98777f0 [ 20.583050] ffffffff8142d741 0000000041b58ab3 ffffffff84189000 ffffffff8142d585 [ 20.591009] Call Trace: [ 20.593572] [] dump_stack+0xc1/0x128 [ 20.598902] [] ? set_precision+0x144/0x170 [ 20.604757] [] panic+0x1bc/0x3a8 [ 20.609740] [] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7 [ 20.617936] [] ? vprintk_emit+0x3ad/0x750 [ 20.623704] [] ? __warn+0x1a9/0x1e0 [ 20.628948] [] ? set_precision+0x144/0x170 [ 20.634799] [] __warn+0x1c4/0x1e0 [ 20.639869] [] warn_slowpath_fmt+0xc4/0x110 [ 20.645807] [] ? __warn+0x1e0/0x1e0 [ 20.651053] [] ? avc_has_perm+0x378/0x4f0 [ 20.656817] [] ? noop_count+0x40/0x40 [ 20.662234] [] ? check_usage_backwards+0x171/0x300 [ 20.668779] [] set_precision+0x144/0x170 [ 20.674461] [] vsnprintf+0x8ae/0x16d0 [ 20.679881] [] ? pointer+0xa90/0xa90 [ 20.685212] [] ? mark_lock+0x99b/0xfd0 [ 20.690730] [] vscnprintf+0x2d/0x60 [ 20.695973] [] vprintk_emit+0xf1/0x750 [ 20.701479] [] vprintk+0x28/0x30 [ 20.706469] [] vprintk_default+0x1d/0x30 [ 20.712164] [] printk+0xb7/0xe2 [ 20.718063] [] ? load_image_and_restore+0xf9/0xf9 [ 20.724534] [] dns_resolver_preparse+0x743/0x810 [ 20.730913] [] ? dns_resolver_free_preparse+0x40/0x40 [ 20.737719] [] ? dns_resolver_free_preparse+0x40/0x40 [ 20.744529] [] key_create_or_update+0x35e/0xa60 [ 20.750826] [] ? key_type_lookup+0xd0/0xd0 [ 20.756678] [] ? lookup_user_key+0x113/0xd10 [ 20.762704] [] ? __check_object_size+0x174/0x3a9 [ 20.769074] [] ? 0xffffffff810002b8 [ 20.774315] [] SyS_add_key+0x1b1/0x390 [ 20.779833] [] ? key_get_type_from_user.constprop.10+0xe0/0xe0 [ 20.787422] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 20.793974] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 20.800908] Dumping ftrace buffer: [ 20.804438] (ftrace buffer empty) [ 20.808117] Kernel Offset: disabled [ 20.811722] Rebooting in 86400 seconds..