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: 4465 Comm: syz-executor5 Not tainted 4.16.0-rc7+ #368
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:ffff8801db207ca8 EFLAGS: 00010006
RAX: ffff8801d2532000 RBX: 00000000001606f0 RCX: ffffffff811a6082
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606f0
RBP: ffff8801db207ca8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000006
R13: ffff8801d2532000 R14: ffff8801db21d130 R15: ffff8801db21d130
FS:  0000000001f31940(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001f3a978 CR3: 00000001ae8c9006 CR4: 00000000001626f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __write_cr4 arch/x86/include/asm/paravirt.h:77 [inline]
 __cr4_set arch/x86/include/asm/tlbflush.h:254 [inline]
 cr4_clear_bits arch/x86/include/asm/tlbflush.h:277 [inline]
 kvm_cpu_vmxoff arch/x86/kvm/vmx.c:3658 [inline]
 hardware_disable+0x34a/0x4b0 arch/x86/kvm/vmx.c:3664
 kvm_arch_hardware_disable+0x35/0xd0 arch/x86/kvm/x86.c:8281
 hardware_disable_nolock+0x30/0x40 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3289
 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+0xf/0x20 arch/x86/entry/entry_64.S:879
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:778 [inline]
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x5e/0xc0 kernel/locking/spinlock.c:184
RSP: 0018:ffff8801d263f298 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff04
RAX: dffffc0000000000 RBX: 0000000000000282 RCX: 0000000000000006
RDX: 1ffffffff0f5957d RSI: 1ffff1003a4a6513 RDI: 0000000000000282
RBP: ffff8801d263f2a8 R08: 1ffff1003a4c7e21 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89387288
R13: ffff8801ad70d800 R14: ffff8801c5a81ab8 R15: ffff8801c5a81ac8
 __debug_object_init+0x235/0x1040 lib/debugobjects.c:378
 debug_object_init lib/debugobjects.c:391 [inline]
 debug_object_activate+0x456/0x730 lib/debugobjects.c:472
 debug_rcu_head_queue kernel/rcu/rcu.h:129 [inline]
 __call_rcu.constprop.67+0xf2/0xef0 kernel/rcu/tree.c:3021
 call_rcu_sched+0x12/0x20 kernel/rcu/tree.c:3100
 shmem_destroy_inode+0x4f/0x70 mm/shmem.c:3870
 destroy_inode+0x15d/0x200 fs/inode.c:266
 evict+0x57e/0x920 fs/inode.c:570
 iput_final fs/inode.c:1515 [inline]
 iput+0x7b9/0xaf0 fs/inode.c:1542
 do_unlinkat+0x54b/0x940 fs/namei.c:4047
 SYSC_unlink fs/namei.c:4088 [inline]
 SyS_unlink+0x26/0x30 fs/namei.c:4086
 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4545e7
RSP: 002b:0000000000a3daa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004545e7
RDX: 0000000001f329f3 RSI: 0000000000a3db40 RDI: 0000000000a3db40
RBP: 0000000000a3f850 R08: 0000000000000000 R09: 000000000000000f
R10: 000000000000000a R11: 0000000000000202 R12: 0000000001f32940
R13: 0000000000000000 R14: 0000000000000011 R15: 000000000000e1a9
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 6baa46f3ecd7efda ]---