WARNING: CPU: 0 PID: 10986 at arch/x86/kernel/traps.c:780 cond_local_irq_disable arch/x86/kernel/traps.c:85 [inline]
WARNING: CPU: 0 PID: 10986 at arch/x86/kernel/traps.c:780 do_debug+0x4d8/0x6e0 arch/x86/kernel/traps.c:794
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 10986 Comm: syz-executor0 Not tainted 4.14.0-next-20171123+ #50
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+0x18/0x20 arch/x86/entry/entry_64.S:926
RIP: 0010:cond_local_irq_disable arch/x86/kernel/traps.c:85 [inline]
RIP: 0010:do_debug+0x4d8/0x6e0 arch/x86/kernel/traps.c:794
RSP: 0018:ffff8801db40fe98 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8801db40ff58 RCX: 0000000000000000
RDX: 1ffff1003b681ffc RSI: 0000000000000001 RDI: ffffffff85ecb858
RBP: ffff8801db40ff48 R08: ffff8801db40ffe8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000004001
R13: ffff8801d85e6380 R14: 1ffff1003b681fd8 R15: 0000000000004000
 debug+0x34/0x70 arch/x86/entry/entry_64.S:1077
RIP: 0010:copy_user_generic_unrolled+0xa0/0xc0 arch/x86/lib/copy_user_64.S:75
RSP: 0018:ffff8801c6a1fa80 EFLAGS: 00000202
RAX: 0000000000000030 RBX: ffff8801ca84d280 RCX: 0000000000000004
RDX: 0000000000000004 RSI: 0000000020001020 RDI: ffff8801c6a1fb40
RBP: ffff8801c6a1fcc8 R08: 0000000000000000 R09: ffffed0038d43f69
R10: 0000000000000005 R11: ffffed0038d43f68 R12: ffff8801c6884200
R13: 0000000020001000 R14: 00007ffffffff000 R15: ffff8801c6a1fb20
 </#DB>
 __vfs_write+0xef/0x970 fs/read_write.c:480
 vfs_write+0x18f/0x510 fs/read_write.c:544
 SYSC_write fs/read_write.c:589 [inline]
 SyS_write+0xef/0x220 fs/read_write.c:581
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452879
RSP: 002b:00007fbae5e02be8 EFLAGS: 00000212 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452879
RDX: 0000000000000030 RSI: 0000000020001000 RDI: 0000000000000015
RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f5608
R13: 00000000ffffffff R14: 00007fbae5e036d4 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..