[....] Starting enhanced syslogd: rsyslogd[ 11.077925] audit: type=1400 audit(1514768297.390:4): avc: denied { syslog } for pid=3171 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 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 '10.128.15.241' (ECDSA) to the list of known hosts. 2018/01/01 00:58:25 parsed 1 programs 2018/01/01 00:58:25 executed programs: 0 syzkaller login: [ 19.428823] audit: type=1400 audit(1514768305.740:5): avc: denied { sys_admin } for pid=3325 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 [ 19.461178] IPVS: Creating netns size=2536 id=1 [ 19.482539] IPVS: Creating netns size=2536 id=2 [ 19.494133] IPVS: Creating netns size=2536 id=3 [ 19.511837] audit: type=1400 audit(1514768305.830:6): avc: denied { sys_chroot } for pid=3328 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 [ 19.535394] ------------[ cut here ]-- [ 19.540824] WARNING: CPU: 0 PID: 3351 at lib/vsprintf.c:1941 set_precision+0x144/0x170 [ 19.540824] WARNING: CPU: 0 PID: 3351 at lib/vsprintf.c:1941 set_precision+0x144/0x170 [ 19.636379] precision 64656 too large[ 19.639983] Kernel panic - not syncing: [ 1 9 . 6 4 3 67 6 ] Op t i on ' [ 1 9 .7 0 9 3 1 3 ] C P U : 0 P ID : 33 51 C o mm : s yz - e x e c u t o r5 N ot t a i n t ed 4 . 9 .7 3- g f3 f 3 4 5 7 #1 [ 19.741799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.751123] ffff8801cd927728 ffffffff81d922b9 ffffffff83a46d00 ffff8801cd927800[ 19.757541] Option ' [ 1 9 .7 63 6 08 ] O pt i on ' ffffffff83c0f800 ffffffff81db35b4 0000000000000009 ffff8801cd9277f0 [ 19.940292] ffffffff8142d741 0000000041b58ab3 ffffffff84189000 ffffffff8142d585 [ 19[.9 4 818395.]94 O88p35ti]o nOp t'i o n ' [ 2 0 . 01 1 87 8 ] [ < f f f f f f f f8 1 d 92 2 b 9> ] d um p _ s t ac k +0 xc 1 /0 x 1 28 [ 20.043333] [] ? set_precision+0x144/0x170 [ 20.049200] [] panic+0x1bc/0x3a8 [ 20.054211] [] ? percpu_up_re[ 20 . 0 5 8 5 1 8 ] O pt i o n ' [ 20 . 1 2 48 9 7 ] [< f f f f f f ff 8 12 6 7 5 0d > ] ? v p r i n t k_ em i t + 0 x3 a d/ 0 x 75 0 [ 20.155432] [] ? __warn+0x1a9/0x1e0 [ 20.160688] [] ? set_precision+0x144/0x170 [ 20.166567] [] __warn+0x1c[ 2 0. 1 70634] Option ' [ 2 0 . 2 3 25 34 ] [< f f f ff f f f 8 1 1 2 f 4e 4> ] w ar n _s l o w p at h_ f m t + 0 x c4 / 0 x 11 0 [ 20.265235] [] ? __warn+0x1e0/0x1e0 [ 20.270485] [] ? avc_has_perm+0x378/0x4f0 [ 20.276276] [] ? noop_coun[t 2 0. 2 80 4 44] Option ' [ 2 0 . 3 4 1 88 0 ] [ < f ff ff f ff 8 1 2 36 d4 1 > ] ? c h ec k_ u s ag e _ ba ck w ar d s+ 0 x 1 7 1 / 0 x 3 0 0 [ 20.375371] [] set_precision+0x144/0x170 [ 20.381055] [] vsnprintf+0x8ae/0x16d0 [ 20.386496] [] ? pointer+[0 2 0 . 39 05 6 3] Option ' [ 2 0 . 4 52 1 06 ] [ < ff f f f f f f 8 12 38 d 2 b> ] ? m a rk _ l o c k + 0x 9 9 b / 0x fd 0 [ 20.484464] [] vscnprintf+0x2d/0x60 [ 20.489714] [] vprintk_emit+0xf1/0x750 [ 20.495239] [] vprintk+0x28/0x30 [ 20.500247] [] vprintk_default+0x1d/0x30 [ 20.505929] [] printk+0xb7/0xe2 [ 20.510823] [] ? load_image_and_restore+0xf9/0xf9 [ 20.517283] [] dns_resolver_preparse+0x743/0x810 [ 20.523654] [] ? dns_resolver_free_preparse+0x40/0x40 [ 20.530475] [] ? dns_resolver_free_preparse+0x40/0x40 [ 20.537280] [] key_create_or_update+0x35e/0xa60 [ 20.543563] [] ? key_type_lookup+0xd0/0xd0 [ 20.549413] [] ? lookup_user_key+0x113/0xd10 [ 20.555440] [] ? __check_object_size+0x174/0x3a9 [ 20.561809] [] ? 0xffffffff810002b8 [ 20.567050] [] SyS_add_key+0x1b1/0x390 [ 20.572553] [] ? key_get_type_from_user.constprop.10+0xe0/0xe0 [ 20.580140] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 20.586685] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 20.593274] Dumping ftrace buffer: [ 20.596783] (ftrace buffer empty) [ 20.600460] Kernel Offset: disabled [ 20.604052] Rebooting in 86400 seconds..