F2FS-fs (loop0): invalid crc value
F2FS-fs (loop0): Found nat_bits in checkpoint
F2FS-fs (loop0): Mounted with checkpoint version = 3651456e
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WARNING: lock held when returning to user space!
4.14.295-syzkaller #0 Not tainted
------------------------------------------------
syz-executor912/7972 is leaving the kernel with locks still held!
1 lock held by syz-executor912/7972:
 #0:  (sb