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chuanying chenandChris Lu
d35f4c1c6b
* storage: fail on short super block extra read even without an error Some backends (e.g. s3_backend) clear io.EOF after a short read, returning n < len(p) with a nil error. Checking n only when the error is non-nil lets truncated extra data reach proto.Unmarshal with a zero-filled tail. * storage: apply the same short-read check to the super block header A backend that returns n < SuperBlockSize with a nil error previously slipped through and parsed a partially zero-filled header. * storage: test super block extra reads Covers a round trip through ReadSuperBlock, a truncated extra region, a backend returning io.EOF alongside a full read, and a backend returning a short read with a nil error. --------- Co-authored-by: Chris Lu <chrislusf@users.noreply.github.com>