netlink: 1 bytes leftover after parsing attributes in process `syz-executor6'.
------------[ cut here ]------------
kernel BUG at net/packet/af_packet.c:1521!
invalid opcode: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 9321 Comm: syz-executor7 Not tainted 4.14.0-rc1+ #44
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c9e763c0 task.stack: ffff8801ccfa8000
RIP: 0010:__fanout_unlink net/packet/af_packet.c:1521 [inline]
RIP: 0010:__unregister_prot_hook+0x139/0x280 net/packet/af_packet.c:367
RSP: 0018:ffff8801ccfaf700 EFLAGS: 00010216
RAX: 0000000000010000 RBX: 0000000000000001 RCX: ffffc900024b7000
RDX: 0000000000000157 RSI: ffffffff8440fda9 RDI: ffff8801ca58ace8
RBP: ffff8801ccfaf740 R08: ffff8801ccfaf050 R09: ffff8801ccfaf048
R10: ffff8801ccfaefc0 R11: 1ffff100393cef0b R12: ffff8801ca58acc0
R13: ffff8801cb7ba480 R14: 0000000000000001 R15: dffffc0000000000
FS:  00007fc048edf700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001ddbc20000 CR3: 00000001c96f0000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 packet_set_ring+0xe7c/0x1b70 net/packet/af_packet.c:4305
 packet_setsockopt+0x6cd/0x1e80 net/packet/af_packet.c:3660
 SYSC_setsockopt net/socket.c:1852 [inline]
 SyS_setsockopt+0x189/0x360 net/socket.c:1831
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x451e59
RSP: 002b:00007fc048edec08 EFLAGS: 00000216 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000718210 RCX: 0000000000451e59
RDX: 0000000000000005 RSI: 0000000000000107 RDI: 0000000000000019
RBP: 0000000000000082 R08: 000000000000047e R09: 0000000000000000
R10: 0000000020001000 R11: 0000000000000216 R12: 00000000004bb419
R13: 00000000ffffffff R14: ffffffffffffffff R15: 0000000000000001
Code: 48 89 fa 48 c1 ea 03 42 80 3c 3a 00 0f 85 4e 01 00 00 4d 3b 6c c4 28 74 16 83 c3 01 e8 81 da 2c fd 44 39 f3 75 cd e8 77 da 2c fd <0f> 0b 31 c0 41 8d 5e ff 48 89 45 c0 e8 66 da 2c fd 49 8d 7c dc 
RIP: __fanout_unlink net/packet/af_packet.c:1521 [inline] RSP: ffff8801ccfaf700
RIP: __unregister_prot_hook+0x139/0x280 net/packet/af_packet.c:367 RSP: ffff8801ccfaf700
---[ end trace 6e2cf433862416a8 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..