WARNING: CPU: 1 PID: 24819 at arch/x86/kernel/traps.c:801 cond_local_irq_disable arch/x86/kernel/traps.c:86 [inline]
WARNING: CPU: 1 PID: 24819 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: 24819 Comm: syz-executor6 Not tainted 4.15.0-rc8+ #267
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: 0000000000000006
RDX: 1fffffc000007ffc RSI: 1ffff1003778a948 RDI: ffffffff868c8c78
RBP: fffffe000003ff48 R08: fffffe000003ffe8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000004001
R13: ffff8801bbc54180 R14: 1fffffc000007fd8 R15: 0000000000004000
 debug+0x34/0x60 arch/x86/entry/entry_64.S:1249
RIP: 0010:arch_futex_atomic_op_inuser arch/x86/include/asm/futex.h:57 [inline]
RIP: 0010:futex_atomic_op_inuser kernel/futex.c:1606 [inline]
RIP: 0010:futex_wake_op kernel/futex.c:1655 [inline]
RIP: 0010:do_futex+0x14ce/0x22a0 kernel/futex.c:3555
RSP: 0018:ffff8801ca397a20 EFLAGS: 00000286
RAX: 0000000000010000 RBX: ffffc90000c72800 RCX: ffffffff8164cb2c
RDX: 0000000000000000 RSI: ffffc9000431b000 RDI: ffff8801bbc55478
RBP: ffff8801ca397e38 R08: 1ffff10039472e83 R09: 0000000000000004
R10: ffff8801ca3978d8 R11: 0000000000000004 R12: 0000000000000000
R13: 0000000020000000 R14: dffffc0000000000 R15: ffff8801ca397e10
 </#DB>
 SYSC_futex kernel/futex.c:3605 [inline]
 SyS_futex+0x260/0x390 kernel/futex.c:3573
 entry_SYSCALL_64_fastpath+0x29/0xa0
RIP: 0033:0x452e39
RSP: 002b:00007fa384d3ec58 EFLAGS: 00000212 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fa384d3f700 RCX: 0000000000452e39
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 000000002036bffc
RBP: 0000000000000000 R08: 0000000020000000 R09: 000000001fffffff
R10: 0000000020fd6ff0 R11: 0000000000000212 R12: 0000000000000000
R13: 0000000000a2f7ef R14: 00007fa384d3f9c0 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..