audit: type=1400 audit(1519462709.189:6): avc:  denied  { map } for  pid=4224 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
sshd (4221) used greatest stack depth: 16592 bytes left
audit: type=1400 audit(1519462715.494:7): avc:  denied  { map } for  pid=4239 comm="syzkaller322367" path="/root/syzkaller322367318" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
------------[ cut here ]------------
kernel BUG at ./include/linux/skbuff.h:2076!
invalid opcode: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 4239 Comm: syzkaller322367 Not tainted 4.16.0-rc2+ #240
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__skb_pull include/linux/skbuff.h:2076 [inline]
RIP: 0010:__ip6_make_skb+0x1ac8/0x2190 net/ipv6/ip6_output.c:1636
RSP: 0018:ffff8801ac4570f0 EFLAGS: 00010293
RAX: ffff8801ae8aa740 RBX: 0000000000000738 RCX: ffffffff84eff058
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801add13c60
RBP: ffff8801ac457360 R08: ffff8801b115e944 R09: 0000000000000000
R10: ffff8801ac457380 R11: ffffed0036082dee R12: 00000000000000d6
R13: ffff8801add13780 R14: dffffc0000000000 R15: ffff8801b115e8c0
FS:  0000000000d04880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000b000 CR3: 00000001b012c006 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ip6_finish_skb include/net/ipv6.h:969 [inline]
 udp_v6_push_pending_frames+0x269/0x3b0 net/ipv6/udp.c:1073
 udpv6_sendmsg+0x2a96/0x3400 net/ipv6/udp.c:1343
 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763
 sock_sendmsg_nosec net/socket.c:629 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:639
 ___sys_sendmsg+0x320/0x8b0 net/socket.c:2047
 __sys_sendmmsg+0x1ee/0x620 net/socket.c:2137
 SYSC_sendmmsg net/socket.c:2168 [inline]
 SyS_sendmmsg+0x35/0x60 net/socket.c:2163
 do_syscall_64+0x280/0x940 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4404c9
RSP: 002b:00007fff72dce4d8 EFLAGS: 00000217 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004404c9
RDX: 0000000000000003 RSI: 0000000020001f00 RDI: 0000000000000003
RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8
R10: 0000000020000080 R11: 0000000000000217 R12: 0000000000401df0
R13: 0000000000401e80 R14: 0000000000000000 R15: 0000000000000000
Code: ff e8 dd 71 b9 fc e9 15 e9 ff ff e8 d3 71 b9 fc e9 44 e8 ff ff e8 e9 71 b9 fc e9 c0 e6 ff ff e8 7f 1b 81 fc 0f 0b e8 78 1b 81 fc <0f> 0b 49 8d 87 80 00 00 00 4d 8d 87 84 00 00 00 48 89 85 20 fe 
RIP: __skb_pull include/linux/skbuff.h:2076 [inline] RSP: ffff8801ac4570f0
RIP: __ip6_make_skb+0x1ac8/0x2190 net/ipv6/ip6_output.c:1636 RSP: ffff8801ac4570f0
---[ end trace 93c6f9331c828fc3 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..