WARNING: CPU: 0 PID: 3821 at arch/x86/kvm/x86.c:7305 kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 arch/x86/kvm/x86.c:7305
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 3821 Comm: syzkaller178250 Not tainted 4.15.0-rc9+ #187
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __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:kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 arch/x86/kvm/x86.c:7305
RSP: 0018:ffff8801d4b27580 EFLAGS: 00010293
RAX: ffff8801d4b9a6c0 RBX: ffff8801cfc04000 RCX: ffffffff810df29f
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d0b185e0
RBP: ffff8801d4b27910 R08: 1ffff1003a964e93 R09: 0000000000000001
R10: ffff8801d4b27930 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1003a964f4d R14: ffff8801d143d680 R15: ffff8801d0b183c0
 kvm_vcpu_ioctl+0x64c/0x1010 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2582
 kvm_vcpu_compat_ioctl+0x364/0x450 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2777
 C_SYSC_ioctl fs/compat_ioctl.c:1473 [inline]
 compat_SyS_ioctl+0x151/0x2a30 fs/compat_ioctl.c:1419
 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline]
 do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389
 entry_SYSENTER_compat+0x54/0x63 arch/x86/entry/entry_64_compat.S:129
RIP: 0023:0xf7f77c79
RSP: 002b:00000000f7e891ec EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000040 RCX: 000000000000ae80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 3656 Comm: sshd Not tainted 4.15.0-rc9+ #187
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:native_write_cr4+0x4/0x10 arch/x86/include/asm/special_insns.h:76
RSP: 0000:ffff8801db307e88 EFLAGS: 00010082
RAX: dffffc0000000000 RBX: 00000000001606e0 RCX: 0000000000000001
RDX: 1ffffffff0d1916c RSI: 0000000000000000 RDI: 00000000001606e0
RBP: ffff8801db307e88 R08: ffff8801db307f40 R09: ffff8801db307f80
R10: 00000000259b2802 R11: 00000000092c569c R12: 0000000000000082
R13: 1ffff1003b660fd4 R14: ffff8801bd0d8300 R15: ffff8801db307fc0
FS:  00007f66e08917c0(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005652d9f46000 CR3: 00000001d5a4c001 CR4: 00000000001626e0
Call Trace:
 <IRQ>
 __write_cr4 arch/x86/include/asm/paravirt.h:76 [inline]
 __cr4_set arch/x86/include/asm/tlbflush.h:252 [inline]
 cr4_clear_bits arch/x86/include/asm/tlbflush.h:275 [inline]
 cpu_vmxoff arch/x86/include/asm/virtext.h:44 [inline]
 __cpu_emergency_vmxoff arch/x86/include/asm/virtext.h:59 [inline]
 cpu_emergency_vmxoff arch/x86/include/asm/virtext.h:67 [inline]
 smp_reboot_interrupt+0x3ea/0x510 arch/x86/kernel/smp.c:179
 reboot_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:930
 </IRQ>
RIP: 0033:0x7f66dfce5f34
RSP: 002b:00007ffca50e00d8 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff07
RAX: 00000000259b2802 RBX: 00000000092c569c RCX: 00000000ff959cea
RDX: 0000000098918297 RSI: 00000000001b0000 RDI: 000000000000001b
RBP: 0000000000910000 R08: 000000004a2d5004 R09: 000000001258ac23
R10: 00000000259b2802 R11: 00000000092c569c R12: 0000000000959cea
R13: 0000000000950000 R14: 00007f66dfce7b00 R15: 00005652d9f1ed98
Code: 0f 1f 80 00 00 00 00 55 48 89 e5 0f 20 d8 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 0f 22 df 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 <0f> 22 e7 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 44 0f 20 c0 5d 
RIP: native_write_cr4+0x4/0x10 arch/x86/include/asm/special_insns.h:76 RSP: ffff8801db307e88
---[ end trace c1b8d1f245ca6ff5 ]---
Shutting down cpus with NMI
invalid opcode: 0000 [#2] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffi[ n:  
2