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: 3128 Comm: udevd Not tainted 4.15.0-rc4-next-20171221+ #78
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: ffff8801cbe18300 RBX: 00000000001606e0 RCX: ffffffff811a47f2
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606e0
RBP: ffff8801db307ca8 R08: 1ffff10039609d9d R09: 0000000000000004
R10: ffff8801cb04f1b0 R11: 0000000000000000 R12: 0000000000000006
R13: ffff8801cbe18300 R14: ffff8801db31a130 R15: ffff8801db31a130
FS:  00007f510e77f7a0(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001cb07e002 CR4: 00000000001626e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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:3737 [inline]
 hardware_disable+0x34a/0x4b0 arch/x86/kvm/vmx.c:3743
 kvm_arch_hardware_disable+0x35/0xd0 arch/x86/kvm/x86.c:8110
 hardware_disable_nolock+0x30/0x40 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3283
 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:lock_acquire+0x26d/0x580 kernel/locking/lockdep.c:3903
RSP: 0018:ffff8801cb04f1d0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04
RAX: dffffc0000000000 RBX: ffff8801cbe18300 RCX: 0000000000000000
RDX: 1ffffffff0c990a5 RSI: 00000000fefffe81 RDI: 0000000000000286
RBP: ffff8801cb04f2c8 R08: 1ffff10039609d9d R09: 0000000000000004
R10: ffff8801cb04f1b0 R11: 0000000000000000 R12: 1ffff10039609e40
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
 __mutex_lock_common kernel/locking/mutex.c:756 [inline]
 __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908
 kernfs_dop_revalidate+0x96/0x380 fs/kernfs/dir.c:570
 d_revalidate fs/namei.c:782 [inline]
 lookup_fast+0xa2f/0xfa0 fs/namei.c:1600
 walk_component+0xf2/0x13d0 fs/namei.c:1777
 link_path_walk+0xd4e/0x1470 fs/namei.c:2110
 path_lookupat+0xf3/0xba0 fs/namei.c:2298
 filename_lookup+0x25f/0x500 fs/namei.c:2333
 user_path_at_empty+0x40/0x50 fs/namei.c:2587
 SYSC_readlinkat fs/stat.c:394 [inline]
 SyS_readlinkat fs/stat.c:382 [inline]
 SYSC_readlink fs/stat.c:421 [inline]
 SyS_readlink+0x12d/0x3a0 fs/stat.c:418
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x7f510de88577
RSP: 002b:00007fff179d6fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000059
RAX: ffffffffffffffda RBX: 0000000000df6fb0 RCX: 00007f510de88577
RDX: 0000000000000400 RSI: 00007fff179d6fe0 RDI: 00007fff179d74c0
RBP: 0000000000000000 R08: 0000000000da5d00 R09: 00007f510dedd360
R10: 7665642f7379732f R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000df2e30 R14: 0000000000d90030 R15: 000000000000000b
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 9efab655a101bb99 ]---