Vulnerability in f2fs Package: Sanity Check on total_data_blocks

Kernel Updated 02 Oct 2025

Summary

28/06/2022
N/A
No i
Unrated
Not published

GSD-2022-1002951: f2fs: fix to do sanity check on total_data_blocks. Affects Kernel versions < 071b1269a3b3ad9cec16ed76a48015bfffd9aee8. No fix is published. How to fix ↓

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Background

The f2fs package is a file system designed for flash-based storage devices in the Linux Kernel. It provides efficient data management and supports advanced features like wear leveling and garbage collection. However, a vulnerability has been discovered in the package that affects the sanity check on total_data_blocks, potentially leading to security issues.

Vulnerability Detail

The vulnerability in the f2fs package arises from a missing sanity check on total_data_blocks. This oversight could allow an attacker to manipulate the file system's data blocks, leading to data corruption or unauthorized access. The impact of this vulnerability depends on the specific usage scenario and the attacker's capabilities. However, it is crucial to address this issue promptly to prevent potential security breaches.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

As this vulnerability is fixed in the latest version of the Linux Kernel, there is no specific workaround available. It is advised to update the kernel to the recommended version.

Conclusion

In conclusion, the f2fs package in the Linux Kernel is vulnerable to a sanity check issue on total_data_blocks. To mitigate this vulnerability, it is crucial to update the kernel to version v5.17.14 or later. For further support on vulnerability remediation, you can reach out to DevNack.com.

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FAQ

The f2fs package is a file system designed for flash-based storage devices in the Linux Kernel. It provides efficient data management and supports advanced features like wear leveling and garbage collection.

The impact of this vulnerability can vary depending on the specific usage scenario and the attacker's capabilities. However, it could potentially lead to data corruption or unauthorized access.

To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.17.14 or later, which includes the necessary fix for the sanity check on total_data_blocks.

As the vulnerability is fixed in the latest version of the Linux Kernel, there is no specific workaround available. Updating the kernel is the recommended solution.

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How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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