kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
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: 3138 Comm: syzkaller794902 Not tainted 4.15.0-rc5+ #237
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: 0018:ffff8801bde975a0 EFLAGS: 00010093
RAX: ffff8801ca00c700 RBX: 00000000001606e0 RCX: ffffffff811a2f12
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000001606e0
RBP: ffff8801bde975a0 R08: 1ffff10037bd2e0f R09: 0000000000000004
R10: ffff8801bde97510 R11: 0000000000000004 R12: 0000000000000093
R13: ffff8801ca00c700 R14: ffff8801db515850 R15: ffff8801db515850
FS:  0000000001ae3880(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000005e22002 CR4: 00000000001626e0
Call Trace:
 __write_cr4 arch/x86/include/asm/paravirt.h:76 [inline]
 __cr4_set arch/x86/include/asm/tlbflush.h:176 [inline]
 cr4_clear_bits arch/x86/include/asm/tlbflush.h:199 [inline]
 kvm_cpu_vmxoff arch/x86/kvm/vmx.c:3582 [inline]
 hardware_disable+0x34a/0x4b0 arch/x86/kvm/vmx.c:3588
 kvm_arch_hardware_disable+0x35/0xd0 arch/x86/kvm/x86.c:8004
 hardware_disable_nolock+0x30/0x40 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3310
 on_each_cpu+0xca/0x1b0 kernel/smp.c:604
 hardware_disable_all_nolock+0x3e/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3328
 hardware_disable_all arch/x86/kvm/../../../virt/kvm/kvm_main.c:3334 [inline]
 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:742 [inline]
 kvm_put_kvm+0x956/0xdf0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:755
 kvm_vm_release+0x42/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:766
 __fput+0x327/0x7e0 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+0x9bb/0x1ad0 kernel/exit.c:865
 do_group_exit+0x149/0x400 kernel/exit.c:968
 SYSC_exit_group kernel/exit.c:979 [inline]
 SyS_exit_group+0x1d/0x20 kernel/exit.c:977
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x441c68
RSP: 002b:00007ffea96d2d88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000020fc4800 RCX: 0000000000441c68
RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
RBP: 0000000020fc4000 R08: 00000000000000e7 R09: ffffffffffffffd0
R10: 0000000000000012 R11: 0000000000000246 R12: 0000000020fc7e00
R13: 0000000020fc6e00 R14: 0000000020fc7a00 R15: 0000000020fc3000
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: ffff8801bde975a0
---[ end trace 0f15bfb3288c7bab ]---