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: 0 PID: 4440 Comm: syz-executor6 Not tainted 4.15.0-rc7+ #168
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:ffff8801db207ca8 EFLAGS: 00010006
RAX: ffff8801caed41c0 RBX: 00000000001606f0 RCX: ffffffff811a32c2
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606f0
RBP: ffff8801db207ca8 R08: ffff8801c0b472c0 R09: ffff8801caed41c0
R10: 000000000000000b R11: ffffed0038168e5b R12: 0000000000000006
R13: ffff8801caed41c0 R14: ffff8801db21d130 R15: ffff8801db21d130
FS:  0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:0000000009f79900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020ceffee CR3: 00000001d0732002 CR4: 00000000001626f0
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]
 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
 flush_smp_call_function_queue+0x1f4/0x570 kernel/smp.c:243
 generic_smp_call_function_single_interrupt+0x13/0x30 kernel/smp.c:192
 smp_call_function_single_interrupt+0x103/0x640 arch/x86/kernel/smp.c:295
 call_function_single_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:942
 </IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:unwind_next_frame.part.6+0x5b1/0xb40 arch/x86/kernel/unwind_frame.c:326
RSP: 0000:ffff8801c0b47168 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff04
RAX: dffffc0000000000 RBX: ffff8801c0b47288 RCX: ffff8801c0b47238
RDX: ffff8801c0b472b0 RSI: 1ffff10038168ec2 RDI: ffff8801c0b47f48
RBP: ffff8801c0b47260 R08: ffff8801c0b472c0 R09: ffff8801caed41c0
R10: 000000000000000b R11: ffffed0038168e5b R12: 1ffff10038168e33
R13: ffff8801c0b47610 R14: ffff8801c0b47610 R15: ffff8801c0b472d8
 unwind_next_frame+0x3e/0x50 arch/x86/kernel/unwind_frame.c:287
 __save_stack_trace+0x6e/0xd0 arch/x86/kernel/stacktrace.c:44
 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60
 save_stack+0x43/0xd0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:551
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:489
 slab_post_alloc_hook mm/slab.h:442 [inline]
 slab_alloc mm/slab.c:3382 [inline]
 kmem_cache_alloc+0x11b/0x760 mm/slab.c:3542
 anon_vma_alloc mm/rmap.c:81 [inline]
 __anon_vma_prepare+0x39d/0x6b0 mm/rmap.c:189
 anon_vma_prepare include/linux/rmap.h:153 [inline]
 do_huge_pmd_anonymous_page+0x1127/0x1b00 mm/huge_memory.c:678
 create_huge_pmd mm/memory.c:3828 [inline]
 __handle_mm_fault+0x1a0c/0x3ce0 mm/memory.c:4032
 handle_mm_fault+0x334/0x8d0 mm/memory.c:4098
 __do_page_fault+0x5c9/0xc90 arch/x86/mm/fault.c:1429
 do_page_fault+0xee/0x720 arch/x86/mm/fault.c:1504
 page_fault+0x4c/0x60 arch/x86/entry/entry_64.S:1243
RIP: 0023:0x8066d0f
RSP: 002b:000000000844f93c EFLAGS: 00010203
RAX: 0000000000000000 RBX: 000000000844f9a8 RCX: 0000000000000004
RDX: 0000000000000002 RSI: 00000000081400c8 RDI: 0000000020ceffee
RBP: 0000000020ceffee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
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: ffff8801db207ca8
---[ end trace 18031c481adeb2a2 ]---