IPVS: Creating netns size=2536 id=3
IPVS: Creating netns size=2536 id=4
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
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3352 at lib/vsprintf.c:1941 set_precision+0x144/0x170 lib/vsprintf.c:1941
precision 56264 too large[   19.537367] Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 3352 Comm: syz-executor4 Not tainted 4.9.78-ge37256c #21
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801c7ebf728 ffffffff81d943a9 ffffffff83a47c40 ffff8801c7ebf800
 ffffffff83c10700 ffffffff81db56a4 0000000000000009 ffff8801c7ebf7f0
 ffffffff8142f451 0000000041b58ab3 ffffffff8418ac30 ffffffff8142f295
Call Trace:
 [<ffffffff81d943a9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d943a9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8142f451>] panic+0x1bc/0x3a8 kernel/panic.c:179
 [<ffffffff81131164>] __warn+0x1c4/0x1e0 kernel/panic.c:542
 [<ffffffff81131244>] warn_slowpath_fmt+0xc4/0x110 kernel/panic.c:565
 [<ffffffff81db56a4>] set_precision+0x144/0x170 lib/vsprintf.c:1941
 [<ffffffff81dbf41e>] vsnprintf+0x8ae/0x16d0 lib/vsprintf.c:2017
 [<ffffffff81dc026d>] vscnprintf+0x2d/0x60 lib/vsprintf.c:2147
 [<ffffffff81269051>] vprintk_emit+0xf1/0x750 kernel/printk/printk.c:1847
 [<ffffffff812696d8>] vprintk+0x28/0x30 kernel/printk/printk.c:1913
 [<ffffffff812696fd>] vprintk_default+0x1d/0x30 kernel/printk/printk.c:1914
 [<ffffffff8143016c>] vprintk_func kernel/printk/internal.h:36 [inline]
 [<ffffffff8143016c>] printk+0xb7/0xe2 kernel/printk/printk.c:1975
 [<ffffffff83895443>] dns_resolver_preparse+0x743/0x810 net/dns_resolver/dns_key.c:130
 [<ffffffff81bb571e>] key_create_or_update+0x35e/0xa60 security/keys/key.c:855
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81bba4f1>] SYSC_add_key security/keys/keyctl.c:125 [inline]
 [<ffffffff81bba4f1>] SyS_add_key+0x1b1/0x390 security/keys/keyctl.c:60
 [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..