audit: type=1400 audit(1519832643.348:6): avc:  denied  { map } for  pid=4079 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
audit: type=1400 audit(1519832649.688:7): avc:  denied  { map } for  pid=4093 comm="syzkaller235605" path="/root/syzkaller235605920" 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: 1 PID: 4093 Comm: syzkaller235605 Not tainted 4.16.0-rc2+ #245
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:ffff8801cc06f1f0 EFLAGS: 00010293
RAX: ffff8801cc03e680 RBX: 00000000000006e0 RCX: ffffffff84f027a8
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801ce3e7d60
RBP: ffff8801cc06f460 R08: ffff8801cda19384 R09: 0000000000000000
R10: ffff8801cc06f480 R11: fd676b049aac0ae7 R12: 00000000000005a1
R13: ffff8801ce3e7880 R14: dffffc0000000000 R15: ffff8801cda19300
FS:  0000000001f4b880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056238bfe3100 CR3: 00000001cae34006 CR4: 00000000001606e0
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+0x767/0x8b0 net/socket.c:2047
 __sys_sendmsg+0xe5/0x210 net/socket.c:2081
 SYSC_sendmsg net/socket.c:2092 [inline]
 SyS_sendmsg+0x2d/0x50 net/socket.c:2088
 do_syscall_64+0x280/0x940 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4402a9
RSP: 002b:00007ffc38f4a348 EFLAGS: 00000217 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0100000000000000 RCX: 00000000004402a9
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 00000000006cb018 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000217 R12: 0000000000401bd0
R13: 0000000000401c60 R14: 0000000000000000 R15: 0000000000000000
Code: ff e8 8d 53 b9 fc e9 15 e9 ff ff e8 83 53 b9 fc e9 44 e8 ff ff e8 99 53 b9 fc e9 c0 e6 ff ff e8 8f e9 80 fc 0f 0b e8 88 e9 80 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: ffff8801cc06f1f0
RIP: __ip6_make_skb+0x1ac8/0x2190 net/ipv6/ip6_output.c:1636 RSP: ffff8801cc06f1f0
---[ end trace e592c021f58b3063 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..