audit: type=1400 audit(1519180044.726:14): avc:  denied  { dac_override } for  pid=5205 comm="syz-executor5" capability=1  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
xt_connbytes: Forcing CT accounting to be enabled
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 5234 Comm: syz-executor3 Not tainted 4.16.0-rc2+ #323
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ip6t_do_table+0x132d/0x1a30 net/ipv6/netfilter/ip6_tables.c:355
RSP: 0018:ffff8801be855e50 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8801ab72f420 RCX: ffffffff84dc31c1
RDX: 0000000000000811 RSI: 0000000000000000 RDI: ffff8801ab72f30e
RBP: ffff8801be856098 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8801ab72f280
FS:  00007fc706e23700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002022a000 CR3: 00000001cf6ca001 CR4: 00000000001626e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ip6table_filter_hook+0x65/0x80 net/ipv6/netfilter/ip6table_filter.c:41
 nf_hook_entry_hookfn include/linux/netfilter.h:120 [inline]
 nf_hook_slow+0xba/0x1a0 net/netfilter/core.c:483
 nf_hook include/linux/netfilter.h:243 [inline]
 NF_HOOK include/linux/netfilter.h:286 [inline]
 ip6_xmit+0x10ec/0x2260 net/ipv6/ip6_output.c:277
 sctp_v6_xmit+0x438/0x630 net/sctp/ipv6.c:225
 sctp_packet_transmit+0x225e/0x3750 net/sctp/output.c:638
 sctp_outq_flush+0x121b/0x4060 net/sctp/outqueue.c:1197
 sctp_outq_uncork+0x5a/0x70 net/sctp/outqueue.c:776
 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1807 [inline]
 sctp_side_effects net/sctp/sm_sideeffect.c:1210 [inline]
 sctp_do_sm+0x4e0/0x6ed0 net/sctp/sm_sideeffect.c:1181
 sctp_primitive_SEND+0xa0/0xd0 net/sctp/primitive.c:178
 sctp_sendmsg+0x1894/0x35e0 net/sctp/socket.c:2029
 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:764
 sock_sendmsg_nosec net/socket.c:630 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:640
 ___sys_sendmsg+0x320/0x8b0 net/socket.c:2046
 __sys_sendmmsg+0x1ee/0x620 net/socket.c:2136
 SYSC_sendmmsg net/socket.c:2167 [inline]
 SyS_sendmmsg+0x35/0x60 net/socket.c:2162
 do_syscall_64+0x280/0x940 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x453da9
RSP: 002b:00007fc706e22c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007fc706e236d4 RCX: 0000000000453da9
RDX: 0000000000000001 RSI: 0000000020acef88 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000004a1 R14: 00000000006f6fb8 R15: 0000000000000000
Code: 41 f6 87 83 00 00 00 04 75 37 e8 0f da 94 fc 8b 85 14 fe ff ff 48 8b b5 50 fe ff ff 4c 8d 2c c6 44 8d 60 01 4c 89 e8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 26 03 00 00 4d 89 7d 00 44 89 a5 14 fe ff 
RIP: ip6t_do_table+0x132d/0x1a30 net/ipv6/netfilter/ip6_tables.c:355 RSP: ffff8801be855e50
---[ end trace ad648bfe148cf3f5 ]---
kasan: CONFIG_KASAN_INLINE enabled