------------[ 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: 1 PID: 6144 Comm: syz-executor5 Not tainted 4.13.0-rc7-next-20170901+ #13
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
task: ffff8800525e2240 task.stack: ffff88004d268000
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:ffff88004d26f5b0 EFLAGS: 00010202
RAX: 0000000000010000 RBX: ffff8800524b5280 RCX: ffffc9000236b000
RDX: 00000000000000f0 RSI: ffffffff844087d9 RDI: ffff880067276348
RBP: ffff88004d26f5f0 R08: ffff88004d26ef00 R09: ffff88004d26eef8
R10: ffff88004d26ee70 R11: 1ffff1000a4bc6db R12: ffff880067276340
R13: ffff8800524b5280 R14: 0000000000000000 R15: ffff88004d26fc20
FS:  00007f0bdeba9700(0000) GS:ffff88003ed00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000208b9000 CR3: 000000006bc47000 CR4: 00000000000006e0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
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
 do_syscall_64+0x26c/0x8c0 arch/x86/entry/common.c:287
 entry_SYSCALL64_slow_path+0x25/0x25
RIP: 0033:0x447299
RSP: 002b:00007f0bdeba8c08 EFLAGS: 00000292 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 0000000000447299
RDX: 0000000000000005 RSI: 0000000000000107 RDI: 0000000000000017
RBP: 00000000007080b0 R08: 000000000000047e R09: 0000000000000000
R10: 0000000020001000 R11: 0000000000000292 R12: 00000000ffffffff
R13: 0000000000004610 R14: 00000000006e76d0 R15: 0000000000000107
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 61 54 2d fd 44 39 f3 75 cd e8 57 54 2d fd <0f> 0b 31 c0 41 8d 5e ff 48 89 45 c0 e8 46 54 2d fd 49 8d 7c dc 
RIP: __fanout_unlink net/packet/af_packet.c:1521 [inline] RSP: ffff88004d26f5b0
RIP: __unregister_prot_hook+0x139/0x280 net/packet/af_packet.c:367 RSP: ffff88004d26f5b0
---[ end trace 898231e08c781f3d ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..