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: 3498 Comm: syzkaller436950 Not tainted 4.15.0-rc6+ #159
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:ffff8801db307ca8 EFLAGS: 00010006
RAX: ffff8801bfce2280 RBX: 00000000001606e0 RCX: ffffffff811a32c2
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606e0
RBP: ffff8801db307ca8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000006
R13: ffff8801bfce2280 R14: ffff8801db31d130 R15: ffff8801db31d130
FS:  0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000081d2900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00007f608752a000 CR3: 00000001bf7fc002 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]
 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:arch_local_irq_enable arch/x86/include/asm/paravirt.h:787 [inline]
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x56/0x70 kernel/locking/spinlock.c:192
RSP: 0018:ffff8801bf65f6f0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff04
RAX: dffffc0000000000 RBX: ffff8801db32c240 RCX: 0000000000000000
RDX: 1ffffffff0d19077 RSI: 0000000000000001 RDI: ffffffff868c83b8
RBP: ffff8801bf65f6f8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801c11b44c0
R13: 1ffff10037ecbee7 R14: ffff8801bfce2280 R15: ffff8801bfce2280
 finish_lock_switch kernel/sched/sched.h:1369 [inline]
 finish_task_switch+0x1d3/0x740 kernel/sched/core.c:2666
 context_switch kernel/sched/core.c:2802 [inline]
 __schedule+0x8f3/0x2060 kernel/sched/core.c:3375
 schedule+0xf5/0x430 kernel/sched/core.c:3434
 freezable_schedule include/linux/freezer.h:172 [inline]
 do_nanosleep+0x224/0x6e0 kernel/time/hrtimer.c:1471
 hrtimer_nanosleep+0x27b/0x4d0 kernel/time/hrtimer.c:1525
 C_SYSC_nanosleep kernel/time/hrtimer.c:1575 [inline]
 compat_SyS_nanosleep+0x17b/0x1f0 kernel/time/hrtimer.c:1562
 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: 0023:0xf7f06c79
RSP: 002b:00000000fffad36c EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00000000fffad398 RCX: 0000000000000000
RDX: 00000000000045ec RSI: 00000000000d73ce RDI: 0000000000000000
RBP: 00000000fffad3d8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 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: ffff8801db307ca8
---[ end trace f9e6af56b9d63c37 ]---