dccp_v4_rcv: dropped packet with invalid checksum
WARNING: CPU: 0 PID: 5361 at arch/x86/kernel/traps.c:800 cond_local_irq_disable arch/x86/kernel/traps.c:85 [inline]
WARNING: CPU: 0 PID: 5361 at arch/x86/kernel/traps.c:800 do_debug+0x4d8/0x6e0 arch/x86/kernel/traps.c:814
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 5361 Comm: syz-executor1 Not tainted 4.15.0-rc2-mm1+ #39
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <#DB>
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 panic+0x1e4/0x41c kernel/panic.c:183
 __warn+0x1dc/0x200 kernel/panic.c:547
 report_bug+0x211/0x2d0 lib/bug.c:184
 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:177
 fixup_bug arch/x86/kernel/traps.c:246 [inline]
 do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:295
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1079
RIP: 0010:cond_local_irq_disable arch/x86/kernel/traps.c:85 [inline]
RIP: 0010:do_debug+0x4d8/0x6e0 arch/x86/kernel/traps.c:814
RSP: 0018:fffffffffe3cbe98 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: fffffffffe3cbf58 RCX: 0000000000000000
RDX: 1fffffffffc797fc RSI: 0000000000000001 RDI: ffffffff862cb998
RBP: fffffffffe3cbf48 R08: fffffffffe3cbfe8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000e001
R13: ffff8801c32d42c0 R14: 1fffffffffc797d8 R15: 0000000000004000
 debug+0x34/0x60 arch/x86/entry/entry_64.S:1232
RIP: 0010:__get_user_1+0x1c/0x30 arch/x86/lib/getuser.S:44
RSP: 0018:ffff8801acdd7878 EFLAGS: 00000287
RAX: 0000000020000000 RBX: 1ffff100359baf14 RCX: ffffffff8199edc8
RDX: 00000000000000f3 RSI: ffffc90001afb000 RDI: 0000000000000282
RBP: ffff8801acdd7d28 R08: ffff8801acdd7338 R09: 1ffff100359baee4
R10: ffff8801c32d42c0 R11: 0000000000000000 R12: ffff8801ca502140
R13: 0000000000000008 R14: 0000000000000000 R15: 0000000000000001
 </#DB>
 ip_setsockopt+0x3a/0xb0 net/ipv4/ip_sockglue.c:1248
 udp_setsockopt+0x45/0x80 net/ipv4/udp.c:2388
 ipv6_setsockopt+0xa0/0x150 net/ipv6/ipv6_sockglue.c:916
 udpv6_setsockopt+0x45/0x80 net/ipv6/udp.c:1422
 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2968
 SYSC_setsockopt net/socket.c:1829 [inline]
 SyS_setsockopt+0x189/0x360 net/socket.c:1808
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452a09
RSP: 002b:00007f61aec11c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: cccccccccccccccd RCX: 0000000000452a09
RDX: 0000000000000008 RSI: 0000000000000000 RDI: 0000000000000015
RBP: 00000000000005be R08: 0000000000000001 R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000212 R12: 00000000006f5a70
R13: 00000000ffffffff R14: 00007f61aec126d4 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..