uutils/coreutils

dd: Silent Truncate Error Suppression

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#9,745 建立於 2025年12月20日

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 (4 留言) (0 反應) (0 負責人)Rust (23,246 star) (1,852 fork)batch import
U - ddgood first issuereported-canonical

描述

Component

dd

Description

If the output device is full, read-only, or otherwise unable to be truncated, dd reports success (exit 0) while leaving stale data in the output file.

Impact

Silent data corruption. Backup scripts relying on dd may believe a copy succeeded when it actually contains old/garbage data, leading to undetected data loss during recovery.

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