QAT: Invalid ioctl

=====================================
WARNING: bad unlock balance detected!
4.15.0-rc2-next-20171208+ #63 Not tainted
-------------------------------------
syz-executor6/12384 is trying to release lock (mrt_lock) at:
[<000000009bf8a8c8>] ipmr_mfc_seq_stop+0xe1/0x130 net/ipv6/ip6mr.c:553
but there are no more locks to release!

other info that might help us debug this:
1 lock held by syz-executor6/12384:
 #0:  (&p->lock){+.+.}, at: [<0000000002ace8a0>] seq_read+0xd5/0x13d0 fs/seq_file.c:165

stack backtrace:
CPU: 0 PID: 12384 Comm: syz-executor6 Not tainted 4.15.0-rc2-next-20171208+ #63
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 print_unlock_imbalance_bug+0x12f/0x140 kernel/locking/lockdep.c:3561
 __lock_release kernel/locking/lockdep.c:3775 [inline]
 lock_release+0x5f9/0xda0 kernel/locking/lockdep.c:4023
 __raw_read_unlock include/linux/rwlock_api_smp.h:225 [inline]
 _raw_read_unlock+0x1a/0x30 kernel/locking/spinlock.c:255
 ipmr_mfc_seq_stop+0xe1/0x130 net/ipv6/ip6mr.c:553
 seq_read+0xc42/0x13d0 fs/seq_file.c:277
 proc_reg_read+0xef/0x170 fs/proc/inode.c:217
 do_loop_readv_writev fs/read_write.c:673 [inline]
 do_iter_read+0x3db/0x5b0 fs/read_write.c:897
 vfs_readv+0x121/0x1c0 fs/read_write.c:959
 kernel_readv fs/splice.c:361 [inline]
 default_file_splice_read+0x508/0xae0 fs/splice.c:416
 do_splice_to+0x110/0x170 fs/splice.c:880
 splice_direct_to_actor+0x242/0x820 fs/splice.c:952
 do_splice_direct+0x2a7/0x3d0 fs/splice.c:1061
 do_sendfile+0x5d5/0xe90 fs/read_write.c:1413
 SYSC_sendfile64 fs/read_write.c:1468 [inline]
 SyS_sendfile64+0xbd/0x160 fs/read_write.c:1460
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452a39
RSP: 002b:00007f855ca5ec58 EFLAGS: 00000212 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f855ca5e950 RCX: 0000000000452a39
RDX: 0000000020000000 RSI: 0000000000000014 RDI: 0000000000000013
RBP: 00007f855ca5e940 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000212 R12: 00000000004b73a6
R13: 00007f855ca5eac8 R14: 00000000004b73b1 R15: 0000000000000000
WARNING: CPU: 0 PID: 12384 at lib/usercopy.c:26 _copy_to_user+0xb5/0xc0 lib/usercopy.c:26
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 12384 Comm: syz-executor6 Not tainted 4.15.0-rc2-next-20171208+ #63
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 panic+0x1e4/0x41c kernel/panic.c:183
 __warn+0x1dc/0x200 kernel/panic.c:547
 report_bug+0x211/0x2d0 lib/bug.c:184
 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:177
 fixup_bug arch/x86/kernel/traps.c:246 [inline]
 do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:295
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1079
RIP: 0010:_copy_to_user+0xb5/0xc0 lib/usercopy.c:26
RSP: 0018:ffff8801910bf360 EFLAGS: 00010206
RAX: ffff8801ca008200 RBX: 0000000000000001 RCX: ffffffff82532055
RDX: 00000000001f0100 RSI: 0000000000000019 RDI: ffff8801ca0097a0
RBP: ffff8801910bf388 R08: ffff8801dac00dc0 R09: 0000000000000000
R10: 1ffff10032217ddd R11: fffffbfff0f0e683 R12: ffff8801d80b2000
R13: ffff8801c27dc440 R14: ffff8801cceb6948 R15: ffff8801cceb6948
 copy_to_user include/linux/uaccess.h:155 [inline]
 seq_read+0xcb4/0x13d0 fs/seq_file.c:279
 proc_reg_read+0xef/0x170 fs/proc/inode.c:217
 do_loop_readv_writev fs/read_write.c:673 [inline]
 do_iter_read+0x3db/0x5b0 fs/read_write.c:897
 vfs_readv+0x121/0x1c0 fs/read_write.c:959
 kernel_readv fs/splice.c:361 [inline]
 default_file_splice_read+0x508/0xae0 fs/splice.c:416
 do_splice_to+0x110/0x170 fs/splice.c:880
 splice_direct_to_actor+0x242/0x820 fs/splice.c:952
 do_splice_direct+0x2a7/0x3d0 fs/splice.c:1061
 do_sendfile+0x5d5/0xe90 fs/read_write.c:1413
 SYSC_sendfile64 fs/read_write.c:1468 [inline]
 SyS_sendfile64+0xbd/0x160 fs/read_write.c:1460
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452a39
RSP: 002b:00007f855ca5ec58 EFLAGS: 00000212 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f855ca5e950 RCX: 0000000000452a39
RDX: 0000000020000000 RSI: 0000000000000014 RDI: 0000000000000013
RBP: 00007f855ca5e940 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000212 R12: 00000000004b73a6
R13: 00007f855ca5eac8 R14: 00000000004b73b1 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..