================================================
[ BUG: lock held when returning to user space! ]
4.9.124+ #34 Not tainted
------------------------------------------------
syz-executor2/29531 is leaving the kernel with locks still held!
1 lock held by syz-executor2/29531:
 #0:  (&fi->mutex){+.+.+.}, at: [<ffffffff8185d5e2>] fuse_lock_inode+0xa2/0xd0 fs/fuse/inode.c:362