BUG: unable to handle kernel paging request at ffffc8ff85bab4cc
audit: type=1400 audit(1521194915.583:60): avc:  denied  { map } for  pid=10586 comm="syz-executor5" path="socket:[26986]" dev="sockfs" ino=26986 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_route_socket permissive=1
IP: poolsize_invalid net/bridge/netfilter/ebt_among.c:177 [inline]
IP: ebt_among_mt_check+0x1f8/0x390 net/bridge/netfilter/ebt_among.c:193
PGD 0 P4D 0 
Oops: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 10593 Comm: syz-executor1 Not tainted 4.16.0-rc4+ #268
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:poolsize_invalid net/bridge/netfilter/ebt_among.c:177 [inline]
RIP: 0010:ebt_among_mt_check+0x1f8/0x390 net/bridge/netfilter/ebt_among.c:193
RSP: 0018:ffff8801cb1aeac8 EFLAGS: 00010246
RAX: 0000000000000007 RBX: ffffc90005bab0c8 RCX: ffffffff851c1476
RDX: 0000000000000000 RSI: ffffc90001f25000 RDI: ffffc8ff85bab4cc
RBP: ffff8801cb1aeb00 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff88614380 R11: 0000000000000000 R12: ffffc8ff85bab0c8
R13: ffffffff851c12b0 R14: 0000000000000850 R15: ffffffff87702920
FS:  00007f1051583700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc8ff85bab4cc CR3: 00000001d0c90004 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 xt_check_match+0x235/0x9c0 net/netfilter/x_tables.c:469
 ebt_check_match net/bridge/netfilter/ebtables.c:374 [inline]
 ebt_check_entry+0xbc3/0x1e00 net/bridge/netfilter/ebtables.c:704
 translate_table+0xcf5/0x2290 net/bridge/netfilter/ebtables.c:945
 do_replace_finish+0x79a/0x2620 net/bridge/netfilter/ebtables.c:1002
 do_replace+0x333/0x4b0 net/bridge/netfilter/ebtables.c:1141
 do_ebt_set_ctl+0xd4/0x110 net/bridge/netfilter/ebtables.c:1518
 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline]
 nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115
 ip_setsockopt+0x97/0xa0 net/ipv4/ip_sockglue.c:1261
 sctp_setsockopt+0x2ca/0x63e0 net/sctp/socket.c:4154
 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978
 SYSC_setsockopt net/socket.c:1850 [inline]
 SyS_setsockopt+0x189/0x360 net/socket.c:1829
 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x453e69
RSP: 002b:00007f1051582c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f10515836d4 RCX: 0000000000453e69
RDX: 0000000000000080 RSI: 0000000000000000 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000f58 R09: 0000000000000000
R10: 0000000020000980 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000004e9 R14: 00000000006f7678 R15: 0000000000000000
Code: 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 69 01 00 00 <45> 8b ac 24 04 04 00 00 41 81 fd a9 aa aa 0a 77 8f e8 22 f5 54 
RIP: poolsize_invalid net/bridge/netfilter/ebt_among.c:177 [inline] RSP: ffff8801cb1aeac8
RIP: ebt_among_mt_check+0x1f8/0x390 net/bridge/netfilter/ebt_among.c:193 RSP: ffff8801cb1aeac8
CR2: ffffc8ff85bab4cc
---[ end trace da8f37cd208865c9 ]---