WARNING: CPU: 0 PID: 4054 at arch/x86/kernel/traps.c:800 cond_local_irq_disable arch/x86/kernel/traps.c:85 [inline]
WARNING: CPU: 0 PID: 4054 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: 4054 Comm: syz-executor2 Not tainted 4.15.0-rc4+ #231
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:1061
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:ffffffffff185e98 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffffffff185f58 RCX: 0000000000000000
RDX: 1fffffffffe30bfc RSI: 0000000000000001 RDI: ffffffff85ec8238
RBP: ffffffffff185f48 R08: ffffffffff185fe8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000004001
R13: ffff8801d9050740 R14: 1fffffffffe30bd8 R15: 0000000000004000
 debug+0x34/0x60 arch/x86/entry/entry_64.S:1214
RIP: 0010:__get_user_4+0x1e/0x30 arch/x86/lib/getuser.S:72
RSP: 0018:ffff8801d9bffad8 EFLAGS: 00000287
RAX: 0000000020000003 RBX: dffffc0000000000 RCX: ffffffff81998ae8
RDX: 0000000000000000 RSI: ffffc90002943000 RDI: 0000000000000282
RBP: ffff8801d9bffdc0 R08: ffff8801d9ad6208 R09: 1ffff1003b37ff38
R10: ffff8801d9bff988 R11: 0000000000000000 R12: 1ffff1003b37ff62
R13: 000000000000000d R14: ffff8801d9640a80 R15: 000000000000000d
 </#DB>
 tcp_getsockopt+0xb0/0xd0 net/ipv4/tcp.c:3328
 sock_common_getsockopt+0x95/0xd0 net/core/sock.c:2927
 SYSC_getsockopt net/socket.c:1860 [inline]
 SyS_getsockopt+0x178/0x340 net/socket.c:1842
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452a09
RSP: 002b:00007fa46540ac58 EFLAGS: 00000212 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452a09
RDX: 000000000000000d RSI: 0000000000000006 RDI: 0000000000000015
RBP: 000000000000039b R08: 0000000020000000 R09: 0000000000000000
R10: 0000000020492000 R11: 0000000000000212 R12: 00000000006f2728
R13: 00000000ffffffff R14: 00007fa46540b6d4 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..