Vulnerability in f2fs Package: Sanity Check on Block Address

Kernel Updated 02 Oct 2025

Summary

28/06/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1003507: f2fs: fix to do sanity check on block address in f2fs_do_zero_range(). Affects Kernel versions < a34d7b49894b0533222188a52e2958750f830efd. No fix is published. How to fix ↓

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Background

The f2fs package is a component of the Linux Kernel, which is responsible for managing the Flash-Friendly File System (F2FS). F2FS is designed specifically for flash memory storage devices and aims to optimize performance and reliability. It provides features such as wear leveling, garbage collection, and TRIM support. However, a vulnerability has been identified in the f2fs package that could potentially be exploited by attackers.

Vulnerability Detail

The vulnerability in the f2fs package relates to a missing sanity check on block addresses in the f2fs_do_zero_range() function. This function is responsible for zeroing out a range of blocks in the file system. Without the proper sanity check, an attacker could potentially manipulate the block address parameter to perform unauthorized operations or cause a denial-of-service condition. The impact and attack plausibility of this vulnerability have not been proven yet.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

No specific workaround has been mentioned for this vulnerability.

Conclusion

In conclusion, a vulnerability has been identified in the f2fs package of the Linux Kernel. This vulnerability could potentially allow unauthorized operations or cause a denial-of-service condition. Users are advised to update their Linux Kernel to version v5.10.121 or a later version that includes the fix. For further support on vulnerability remediation, please contact DevNack.com.

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