PT-2025-53228 · Debian · Debian

Published

2025-12-24

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Updated

2026-04-20

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CVE-2023-54151

None

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Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description The Linux kernel contains a flaw within the f2fs filesystem. When f2fs attempts to checkpoint during foreground garbage collection (gc) in Log-structured filesystem (LFS) mode, a system crash can occur due to insufficient free space. This happens if the amount of dirty node and dentry pages generated by data migration exceeds the available free space. The issue is triggered by creating a 20GiB file on a 20GiB block device formatted with LFS mode, followed by 4k random writes across the file's entire range. The root cause is a missing check for sufficient free sections before initiating the checkpoint process during garbage collection.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2023-54151

Affected Products

Debian