WARNING: CPU: 0 PID: 15504 at arch/x86/kernel/traps.c:801 cond_local_irq_disable arch/x86/kernel/traps.c:86 [inline]
WARNING: CPU: 0 PID: 15504 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: 0 PID: 15504 Comm: syz-executor0 Not tainted 4.15.0-rc6+ #249
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:1079
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:fffffe000000ee98 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: fffffe000000ef58 RCX: 0000000000000000
RDX: 1fffffc000001dfc RSI: 0000000000000001 RDI: ffffffff868c83b8
RBP: fffffe000000ef48 R08: fffffe000000efe8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000c001
R13: ffff8801bda84000 R14: 1fffffc000001dd8 R15: 0000000000004000
 debug+0x34/0x60 arch/x86/entry/entry_64.S:1232
RIP: 0010:SYSC_waitid+0x18d/0x3f0 kernel/exit.c:1617
RSP: 0018:ffff8801c6acfd90 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff10038d59fb6 RCX: ffffffff81424eb4
RDX: 000000000000000a RSI: ffffc90003fed000 RDI: ffff8801bda853e0
RBP: ffff8801c6acff00 R08: ffff8801c6acfe10 R09: 0000000000000000
R10: ffff8801c6acff20 R11: ffff8801bda84000 R12: 0000000020000000
R13: ffff8801c6acfdd0 R14: 0000000000000000 R15: ffffffffffffffea
 </#DB>
 SyS_waitid+0x38/0x50 kernel/exit.c:1596
 entry_SYSCALL_64_fastpath+0x23/0x9a
RIP: 0033:0x452ac9
RSP: 002b:00007f9bf9214c58 EFLAGS: 00000212 ORIG_RAX: 00000000000000f7
RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452ac9
RDX: 0000000020000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00000000000003fa R08: 0000000020000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4010
R13: 00000000ffffffff R14: 00007f9bf92156d4 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..