WARNING: CPU: 0 PID: 9055 at arch/x86/kvm/x86.c:8381 __x86_set_memory_region+0x390/0x4e0 arch/x86/kvm/x86.c:8381
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 9055 Comm: syz-executor0 Not tainted 4.15.0-rc6-mm1+ #51
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+0x137/0x198 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+0x249/0x290 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:__x86_set_memory_region+0x390/0x4e0 arch/x86/kvm/x86.c:8381
RSP: 0018:ffff8801bc267c20 EFLAGS: 00010212
RAX: 0000000000010000 RBX: ffff8801bc267cb0 RCX: ffffffff810944f0
RDX: 000000000000559e RSI: ffffc90003caf000 RDI: 0000000000000282
RBP: ffff8801bc267cd8 R08: ffff8801bc5b0788 R09: 0000000000000001
R10: ffff8801bc267ad8 R11: 0000000000000001 R12: ffff8801bc267c70
R13: 00000000000101ff R14: ffff8801a0809c00 R15: 0000000000000000
 x86_set_memory_region+0x3e/0x60 arch/x86/kvm/x86.c:8393
 kvm_arch_destroy_vm+0x4ae/0x5a0 arch/x86/kvm/x86.c:8409
 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:729 [inline]
 kvm_put_kvm+0x435/0xa70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:750
 kvm_vcpu_release+0x7b/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2378
 __fput+0x291/0x6e0 fs/file_table.c:209
 ____fput+0x15/0x20 fs/file_table.c:243
 task_work_run+0x122/0x1a0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1c7/0x210 arch/x86/entry/common.c:165
 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
 syscall_return_slowpath+0x383/0x430 arch/x86/entry/common.c:264
 entry_SYSCALL_64_fastpath+0x98/0x9a
RIP: 0033:0x452ac9
RSP: 002b:00007f40a4dc9c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 000000000071bea0 RCX: 0000000000452ac9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000001a
RBP: 0000000000000049 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006ee778
R13: 00000000ffffffff R14: 00007f40a4dca6d4 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..