[....] Starting enhanced syslogd: rsyslogd[ 10.222689] audit: type=1400 audit(1516952146.078:4): 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[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 '10.128.15.208' (ECDSA) to the list of known hosts. 2018/01/26 07:35:55 parsed 1 programs 2018/01/26 07:35:55 executed programs: 0 syzkaller login: [ 19.405148] audit: type=1400 audit(1516952155.258:5): avc: denied { sys_admin } for pid=3323 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 [ 19.441841] IPVS: Creating netns size=2536 id=1 [ 19.463329] IPVS: Creating netns size=2536 id=2 [ 19.474701] IPVS: Creating netns size=2536 id=3 [ 19.485660] IPVS: Creating netns size=2536 id=4 [ 19.491839] audit: type=1400 audit(1516952155.348:6): avc: denied { sys_chroot } for pid=3327 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 [ 19.520988] ------------[ cut here ]------------ [ 19.525750] WARNING: CPU: 0 PID: 3352 at lib/vsprintf.c:1941 set_precision+0x144/0x170 [ 19.533771] precision 56264 too large[ 19.537367] Kernel panic - not syncing: panic_on_warn set ... [ 19.537367] [ 19.544714] CPU: 0 PID: 3352 Comm: syz-executor4 Not tainted 4.9.78-ge37256c #21 [ 19.552218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.561543] ffff8801c7ebf728 ffffffff81d943a9 ffffffff83a47c40 ffff8801c7ebf800 [ 19.569528] ffffffff83c10700 ffffffff81db56a4 0000000000000009 ffff8801c7ebf7f0 [ 19.577504] ffffffff8142f451 0000000041b58ab3 ffffffff8418ac30 ffffffff8142f295 [ 19.585483] Call Trace: [ 19.588043] [] dump_stack+0xc1/0x128 [ 19.593378] [] ? set_precision+0x144/0x170 [ 19.599233] [] panic+0x1bc/0x3a8 [ 19.604231] [] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7 [ 19.612431] [] ? vprintk_emit+0x3ad/0x750 [ 19.618200] [] ? __warn+0x1a9/0x1e0 [ 19.623449] [] ? set_precision+0x144/0x170 [ 19.629303] [] __warn+0x1c4/0x1e0 [ 19.634380] [] warn_slowpath_fmt+0xc4/0x110 [ 19.640320] [] ? __warn+0x1e0/0x1e0 [ 19.645570] [] ? avc_has_perm+0x378/0x4f0 [ 19.651342] [] ? noop_count+0x40/0x40 [ 19.656765] [] ? check_usage_backwards+0x171/0x300 [ 19.663314] [] set_precision+0x144/0x170 [ 19.668994] [] vsnprintf+0x8ae/0x16d0 [ 19.674414] [] ? pointer+0xa90/0xa90 [ 19.679750] [] ? mark_lock+0x99b/0xfd0 [ 19.685256] [] vscnprintf+0x2d/0x60 [ 19.690518] [] vprintk_emit+0xf1/0x750 [ 19.696026] [] vprintk+0x28/0x30 [ 19.701010] [] vprintk_default+0x1d/0x30 [ 19.706694] [] printk+0xb7/0xe2 [ 19.711596] [] ? load_image_and_restore+0xf9/0xf9 [ 19.718059] [] dns_resolver_preparse+0x743/0x810 [ 19.724437] [] ? dns_resolver_free_preparse+0x40/0x40 [ 19.731249] [] ? dns_resolver_free_preparse+0x40/0x40 [ 19.738060] [] key_create_or_update+0x35e/0xa60 [ 19.744355] [] ? key_type_lookup+0xd0/0xd0 [ 19.750211] [] ? lookup_user_key+0x113/0xd10 [ 19.756241] [] ? __check_object_size+0x174/0x3a9 [ 19.762616] [] ? 0xffffffff810002b8 [ 19.767863] [] SyS_add_key+0x1b1/0x390 [ 19.773371] [] ? key_get_type_from_user.constprop.10+0xe0/0xe0 [ 19.780966] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 19.787524] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 19.794500] Dumping ftrace buffer: [ 19.798020] (ftrace buffer empty) [ 19.801701] Kernel Offset: disabled [ 19.805295] Rebooting in 86400 seconds..