kernel BUG at net/packet/af_packet.c:1515!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 3250 Comm: syz-executor0 Not tainted 4.9.47-g6cd2127 #39
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801cc200000 task.stack: ffff8801cc208000
RIP: 0010:[<ffffffff83544d69>]  [<ffffffff83544d69>] __fanout_unlink net/packet/af_packet.c:1515 [inline]
RIP: 0010:[<ffffffff83544d69>]  [<ffffffff83544d69>] __unregister_prot_hook+0x139/0x280 net/packet/af_packet.c:369
RSP: 0018:ffff8801cc20fac8  EFLAGS: 00010297
RAX: ffff8801cc200000 RBX: ffff8801ca1ccc80 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d0d83308
RBP: ffff8801cc20fb08 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 1ffff10039841f22 R12: ffff8801d0d83300
R13: ffff8801ca1ccc80 R14: 0000000000000000 R15: ffff8801cc20fd80
FS:  00007f92f92ea700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001000 CR3: 00000001cedc1000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801ca1cd2f0 ffff8801d0d83b28 0000000000000000 ffff8801ca1ccc80
 ffff8801ca1cd110 0000000000000000 ffff8801ca1cd0e8 ffff8801cc20fd80
 ffff8801cc20fc50 ffffffff835483dc 0000000041b58ab3 0000000000000008
Call Trace:
 [<ffffffff835483dc>] packet_set_ring+0xd6c/0x18b0 net/packet/af_packet.c:4294
 [<ffffffff8354ae94>] packet_setsockopt+0x554/0x2240 net/packet/af_packet.c:3654
 [<ffffffff82ed31e0>] SYSC_setsockopt net/socket.c:1771 [inline]
 [<ffffffff82ed31e0>] SyS_setsockopt+0x160/0x250 net/socket.c:1750
 [<ffffffff838aad85>] entry_SYSCALL_64_fastpath+0x23/0xc6
Code: 48 89 fa 48 c1 ea 03 42 80 3c 3a 00 0f 85 4a 01 00 00 4d 3b 6c c4 28 74 16 e8 b4 58 e2 fd 83 c3 01 44 39 f3 75 cd e8 a7 58 e2 fd <0f> 0b 31 c0 41 8d 5e ff 48 89 45 c0 e8 96 58 e2 fd 49 8d 7c dc 
RIP  [<ffffffff83544d69>] __fanout_unlink net/packet/af_packet.c:1515 [inline]
RIP  [<ffffffff83544d69>] __unregister_prot_hook+0x139/0x280 net/packet/af_packet.c:369
 RSP <ffff8801cc20fac8>
---[ end trace 3e86d15a78fc5e45 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
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Kernel Offset: disabled
Rebooting in 86400 seconds..