*** Guest State ***
BUG: unable to handle kernel paging request at 000000009b14d319
IP: lock_release+0x195/0xda0 kernel/locking/lockdep.c:4021
PGD 5e28067 P4D 5e28067 PUD 5e2a067 PMD 0 
Oops: 0002 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 5087 Comm: syz-executor7 Not tainted 4.15.0-rc1-mm1+ #29
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: 000000004eb63e54 task.stack: 00000000499cb768
RIP: 0010:lock_release+0x195/0xda0 kernel/locking/lockdep.c:4021
RSP: 0018:ffff8801db507378 EFLAGS: 00010046
RAX: 0000000000000007 RBX: 1ffff1003b6a0e74 RCX: ffffffff8170ef5d
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff880192e1c9c4
RBP: ffff8801db5074e8 R08: 0000000000000004 R09: 000000000000000a
R10: 0000000000000000 R11: ffffffff8748cda0 R12: ffff880192e1c140
R13: ffff8801db5074c0 R14: ffffffff85f44cc0 R15: ffff880192e1c140
FS:  00007f003a55e700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff8 CR3: 00000001ccd7f000 CR4: 00000000001426e0
Call Trace:
 <IRQ>
 rcu_lock_release include/linux/rcupdate.h:249 [inline]
 rcu_read_unlock include/linux/rcupdate.h:686 [inline]
 __is_insn_slot_addr+0x225/0x330 kernel/kprobes.c:311
 is_kprobe_optinsn_slot include/linux/kprobes.h:345 [inline]
 kernel_text_address+0x11b/0x140 kernel/extable.c:150
 __kernel_text_address+0xd/0x40 kernel/extable.c:107
 unwind_get_return_address+0x61/0xa0 arch/x86/kernel/unwind_frame.c:18
 __save_stack_trace+0x7e/0xd0 arch/x86/kernel/stacktrace.c:45
 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_slab_free+0x71/0xc0 mm/kasan/kasan.c:524
 __cache_free mm/slab.c:3492 [inline]
 kmem_cache_free+0x77/0x280 mm/slab.c:3750
 file_free_rcu+0x5c/0x70 fs/file_table.c:50
 __rcu_reclaim kernel/rcu/rcu.h:172 [inline]
 rcu_do_batch kernel/rcu/tree.c:2674 [inline]
 invoke_rcu_callbacks kernel/rcu/tree.c:2933 [inline]
 __rcu_process_callbacks kernel/rcu/tree.c:2900 [inline]
 rcu_process_callbacks+0xd74/0x17d0 kernel/rcu/tree.c:2917
 __do_softirq+0x29d/0xbb2 kernel/softirq.c:285
 invoke_softirq kernel/softirq.c:365 [inline]
 irq_exit+0x1d3/0x210 kernel/softirq.c:405
 exiting_irq arch/x86/include/asm/apic.h:540 [inline]
 smp_apic_timer_interrupt+0x16b/0x700 arch/x86/kernel/apic/apic.c:1052
 apic_timer_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:907
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:777 [inline]
RIP: 0010:console_unlock+0x954/0xd70 kernel/printk/printk.c:2235
RSP: 0018:ffff8801c8947338 EFLAGS: 00000212 ORIG_RAX: ffffffffffffff11
RAX: 0000000000010000 RBX: 0000000000000000 RCX: ffffffff8159c59b
RDX: 00000000000033c8 RSI: ffffc90001d49000 RDI: 0000000000000212
RBP: ffff8801c8947420 R08: 1ffff10039128e35 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff83a245d0
 vprintk_emit+0x4ad/0x590 kernel/printk/printk.c:1757
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1796
 vprintk_func+0x57/0xc0 kernel/printk/printk_safe.c:379
 printk+0xaa/0xca kernel/printk/printk.c:1829
 dump_vmcs arch/x86/kvm/vmx.c:8676 [inline]
 vmx_handle_exit+0xbbe/0x1ce0 arch/x86/kvm/vmx.c:8832
 vcpu_enter_guest arch/x86/kvm/x86.c:7084 [inline]
 vcpu_run arch/x86/kvm/x86.c:7146 [inline]
 kvm_arch_vcpu_ioctl_run+0x1cb4/0x5c60 arch/x86/kvm/x86.c:7314
 kvm_vcpu_ioctl+0x64c/0x1010 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2574
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0x1b1/0x1530 fs/ioctl.c:686
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x4529d9
RSP: 002b:00007f003a55dc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f003a55c810 RCX: 00000000004529d9
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000018
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 000000000000001a
R13: 0000000020893000 R14: 00007f003a55e6d4 R15: 0000000000000000
Code: 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 c4 08 00 00 41 c7 87 84 08 00 00 01 00 00 00 <cc> 3f 05 00 00 65 8b 05 cf d5 aa 7e 89 c0 48 0f a3 05 d5 6e 08 
RIP: lock_release+0x195/0xda0 kernel/locking/lockdep.c:4021 RSP: ffff8801db507378
CR2: fffffffffffffff8
---[ end trace 9280bee01fe64502 ]---