[....] Starting enhanced syslogd: rsyslogd[ 10.583704] audit: type=1400 audit(1514846794.141:4): avc: denied { syslog } for pid=3177 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 periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.4' (ECDSA) to the list of known hosts. 2018/01/01 22:46:51 parsed 1 programs 2018/01/01 22:46:51 executed programs: 0 syzkaller login: [ 27.720537] audit: type=1400 audit(1514846811.281:5): avc: denied { sys_admin } for pid=3339 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 [ 27.729377] IPVS: Creating netns size=2536 id=1 [ 27.746731] IPVS: Creating netns size=2536 id=2 [ 27.781557] IPVS: Creating netns size=2536 id=3 [ 27.795102] audit: type=1400 audit(1514846811.361:6): avc: denied { sys_chroot } for pid=3343 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 [ 27.826338] ------------[ cut here ]------------ [ 27.826344] Option ' [ 27.829706] Option ' [ 27.844629] Option ' [ 27.847563] Option ' [ 27.863225] Option ' [ 27.866115] Option ' [ 27.881715] Option ' [ 27.884615] Option ' [ 27.900601] Option ' [ 27.903538] Option ' [ 27.919172] Option ' [ 27.921964] Option ' [ 27.936469] Option ' [ 27.939262] Option ' [ 27.953707] Option ' [ 27.956553] Option ' [ 27.971218] Option ' [ 27.973903] Option ' [ 29.406138] WARNING: CPU: 0 PID: 3367 at lib/vsprintf.c:1941 set_precision+0x144/0x170 [ 29.414170] precision 64851 too large[ 29.417764] Kernel panic - not syncing: panic_on_warn set ... [ 29.417764] [ 29.425121] CPU: 0 PID: 3367 Comm: syz-executor4 Not tainted 4.9.73-gf3f3457 #1 [ 29.432535] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.441871] ffff8801c0c07728 ffffffff81d922b9 ffffffff83a46d00 ffff8801c0c07800 [ 29.449830] ffffffff83c0f800 ffffffff81db35b4 0000000000000009 ffff8801c0c077f0 [ 29.457800] ffffffff8142d741 0000000041b58ab3 ffffffff84189000 ffffffff8142d585 [ 29.465750] Call Trace: [ 29.468312] [] dump_stack+0xc1/0x128 [ 29.473649] [] ? set_precision+0x144/0x170 [ 29.479504] [] panic+0x1bc/0x3a8 [ 29.484488] [] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7 [ 29.492686] [] ? vprintk_emit+0x3ad/0x750 [ 29.498464] [] ? __warn+0x1a9/0x1e0 [ 29.503709] [] ? set_precision+0x144/0x170 [ 29.509571] [] __warn+0x1c4/0x1e0 [ 29.514651] [] warn_slowpath_fmt+0xc4/0x110 [ 29.520593] [] ? __warn+0x1e0/0x1e0 [ 29.525838] [] set_precision+0x144/0x170 [ 29.531516] [] vsnprintf+0x8ae/0x16d0 [ 29.536937] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 29.543830] [] ? pointer+0xa90/0xa90 [ 29.549260] [] ? check_preemption_disabled+0x3b/0x200 [ 29.556067] [] vscnprintf+0x2d/0x60 [ 29.561315] [] vprintk_emit+0xf1/0x750 [ 29.566819] [] vprintk+0x28/0x30 [ 29.571801] [] vprintk_default+0x1d/0x30 [ 29.577481] [] printk+0xb7/0xe2 [ 29.582381] [] ? load_image_and_restore+0xf9/0xf9 [ 29.588849] [] dns_resolver_preparse+0x743/0x810 [ 29.595421] [] ? dns_resolver_free_preparse+0x40/0x40 [ 29.602231] [] ? dns_resolver_free_preparse+0x40/0x40 [ 29.609055] [] key_create_or_update+0x35e/0xa60 [ 29.615351] [] ? key_type_lookup+0xd0/0xd0 [ 29.621205] [] ? lookup_user_key+0x113/0xd10 [ 29.627234] [] ? __check_object_size+0x174/0x3a9 [ 29.633605] [] ? 0xffffffff810002b8 [ 29.639458] [] SyS_add_key+0x1b1/0x390 [ 29.644964] [] ? key_get_type_from_user.constprop.10+0xe0/0xe0 [ 29.652556] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.659106] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 29.665694] Dumping ftrace buffer: [ 29.669203] (ftrace buffer empty) [ 29.672882] Kernel Offset: disabled [ 29.676478] Rebooting in 86400 seconds..