------------[ cut here ]------------ WARNING: CPU: 0 PID: 6206 at arch/x86/kvm/vmx.c:3844 free_loaded_vmcs+0x10f/0x150 arch/x86/kvm/vmx.c:3844 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 6206 Comm: syz-executor7 Not tainted 4.14.0-rc8-next-20171110+ #40 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+0x1c4/0x1e0 kernel/panic.c:546 report_bug+0x211/0x2d0 lib/bug.c:184 fixup_bug+0x40/0x90 arch/x86/kernel/traps.c:177 do_trap_no_signal arch/x86/kernel/traps.c:211 [inline] do_trap+0x260/0x390 arch/x86/kernel/traps.c:260 do_error_trap+0x120/0x390 arch/x86/kernel/traps.c:297 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:310 invalid_op+0x18/0x20 arch/x86/entry/entry_64.S:926 RIP: 0010:free_loaded_vmcs+0x10f/0x150 arch/x86/kvm/vmx.c:3844 RSP: 0018:ffff8801cb5c6f28 EFLAGS: 00010293 RAX: ffff8801cb830240 RBX: ffff8801cf23ca98 RCX: ffffffff8119cb5f RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801cf23caa0 RBP: ffff8801cb5c6f40 R08: ffffea0007600be0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801d802f000 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffed00396b8e09 vmx_free_vcpu+0x1d3/0x2c0 arch/x86/kvm/vmx.c:9507 kvm_arch_vcpu_free arch/x86/kvm/x86.c:7730 [inline] kvm_free_vcpus arch/x86/kvm/x86.c:8179 [inline] kvm_arch_destroy_vm+0x4b4/0x990 arch/x86/kvm/x86.c:8278 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:726 [inline] kvm_put_kvm+0x695/0xde0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:747 kvm_vm_release+0x42/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:758 __fput+0x333/0x7f0 fs/file_table.c:210 ____fput+0x15/0x20 fs/file_table.c:244 task_work_run+0x199/0x270 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x9b5/0x1ad0 kernel/exit.c:869 do_group_exit+0x149/0x400 kernel/exit.c:972 get_signal+0x73f/0x16c0 kernel/signal.c:2333 do_signal+0x94/0x1ee0 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x214/0x310 arch/x86/entry/common.c:158 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264 entry_SYSCALL_64_fastpath+0x94/0x96 RIP: 0033:0x452879 RSP: 002b:00007fa291f36be8 EFLAGS: 00000212 ORIG_RAX: 0000000000000010 RAX: fffffffffffffffc RBX: 0000000000758020 RCX: 0000000000452879 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000017 RBP: 000000000000025e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f1970 R13: 00000000ffffffff R14: 00007fa291f376d4 R15: 0000000000000000 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..