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[ BUG: lock held when returning to user space! ]
4.9.123-g7fa8c15 #28 Not tainted
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syz-executor5/7247 is leaving the kernel with locks still held!
1 lock held by syz-executor5/7247:
 #0:  (&fi->mutex){+.+.+.}, at: [<ffffffff8193d662>] fuse_lock_inode+0xa2/0xd0 fs/fuse/inode.c:362