WARNING: CPU: 1 PID: 8061 at arch/x86/kernel/traps.c:801 cond_local_irq_disable arch/x86/kernel/traps.c:86 [inline]
WARNING: CPU: 1 PID: 8061 at arch/x86/kernel/traps.c:801 do_debug+0x4d8/0x6e0 arch/x86/kernel/traps.c:815
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 8061 Comm: syz-executor0 Not tainted 4.15.0-rc9+ #280
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:178
 fixup_bug arch/x86/kernel/traps.c:247 [inline]
 do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315
 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1096
RIP: 0010:cond_local_irq_disable arch/x86/kernel/traps.c:86 [inline]
RIP: 0010:do_debug+0x4d8/0x6e0 arch/x86/kernel/traps.c:815
RSP: 0018:fffffe000003fe98 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: fffffe000003ff58 RCX: 0000000000000000
RDX: 1fffffc000007ffc RSI: 0000000000000001 RDI: ffffffff868c8c78
RBP: fffffe000003ff48 R08: fffffe000003ffe8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000006001
R13: ffff8801a78ea180 R14: 1fffffc000007fd8 R15: 0000000000004000
 debug+0x34/0x60 arch/x86/entry/entry_64.S:1249
RIP: 0010:__get_user_4+0x1e/0x30 arch/x86/lib/getuser.S:72
RSP: 0018:ffff8801c6967ad8 EFLAGS: 00000287
RAX: 0000000020000003 RBX: dffffc0000000000 RCX: ffffffff8199dfe8
RDX: 0000000000001000 RSI: ffffc900018a7000 RDI: 0000000000000282
RBP: ffff8801c6967dc0 R08: 0000000000000000 R09: 1ffff10038d2cf38
R10: ffff8801c6967988 R11: 0000000000000000 R12: 1ffff10038d2cf62
R13: 0000000000000021 R14: ffff8801d97247c0 R15: 0000000000000021
 </#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:1862 [inline]
 SyS_getsockopt+0x178/0x340 net/socket.c:1844
 entry_SYSCALL_64_fastpath+0x29/0xa0
RIP: 0033:0x452f19
RSP: 002b:00007fdc2b815c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452f19
RDX: 0000000000000021 RSI: 0000000000000006 RDI: 0000000000000014
RBP: 00000000000005c9 R08: 0000000020000000 R09: 0000000000000000
R10: 0000000020650000 R11: 0000000000000212 R12: 00000000006f7b78
R13: 00000000ffffffff R14: 00007fdc2b8166d4 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..