Empty option to dns_resolver key
QAT: Invalid ioctl
QAT: Invalid ioctl
BUG: unable to handle kernel paging request at 00000000dc5efa36
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: 9527 Comm: syz-executor1 Not tainted 4.15.0-rc1-mm1+ #29
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: 00000000bfed60ee task.stack: 0000000064dc82e7
RIP: 0010:lock_release+0x195/0xda0 kernel/locking/lockdep.c:4021
RSP: 0018:ffff8801c6dbf488 EFLAGS: 00010046
RAX: 0000000000000007 RBX: 1ffff10038db7e96 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801d96d4a84
RBP: ffff8801c6dbf5f8 R08: 0000000000000000 R09: 0000000000000004
R10: 0000000000000000 R11: ffffffff8748cda0 R12: ffff8801d96d4200
R13: ffff8801c6dbf5d0 R14: ffffc90000c73da0 R15: ffff8801d96d4200
FS:  00007fc050a13700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff8 CR3: 00000001c1755000 CR4: 00000000001426e0
Call Trace:
 __raw_spin_unlock include/linux/spinlock_api_smp.h:150 [inline]
 _raw_spin_unlock+0x1a/0x30 kernel/locking/spinlock.c:183
 spin_unlock include/linux/spinlock.h:355 [inline]
 queue_me kernel/futex.c:2204 [inline]
 futex_wait_queue_me+0x2a0/0x7e0 kernel/futex.c:2459
 futex_wait+0x34b/0x990 kernel/futex.c:2591
 do_futex+0x11d3/0x2280 kernel/futex.c:3473
 SYSC_futex kernel/futex.c:3533 [inline]
 SyS_futex+0x260/0x390 kernel/futex.c:3501
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x4529d9
RSP: 002b:00007fc050a12ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fc050a11810 RCX: 00000000004529d9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000758048
RBP: 0000000000000000 R08: 000000000000039b R09: 0000000000758020
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000019
R13: 0000000020132000 R14: 00007fc050a136d4 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> 1f 44 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: ffff8801c6dbf488
CR2: fffffffffffffff8
---[ end trace 61e239706150c022 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..