Vulnerability in Kernel package: mm/sparsemem

Kernel Updated 02 Oct 2025

Summary

24/04/2022
N/A
No i
Unrated
Not published

GSD-2022-1002300: mm/sparsemem: fix 'mem_section' will never be NULL gcc 12 warning. Affects Kernel versions >= 3e347261a80b57df792ab9464b5f0ed59add53a8, < ff929e3abef16c409a9beef08bcc29ab940d0ce6. No fix is published. How to fix ↓

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Background

The Kernel package is a fundamental component of the Linux operating system, responsible for managing system resources and providing an interface between hardware and software. The mm/sparsemem module within the Kernel package handles memory management, specifically dealing with sparse memory sections. Sparse memory sections are non-contiguous memory regions that are used to optimize memory allocation in systems with large amounts of memory. This vulnerability affects the mm/sparsemem module and can potentially impact the overall stability and security of the system.

Vulnerability Detail

The vulnerability in the mm/sparsemem module is related to a warning generated by the GCC 12 compiler. The warning indicates that the 'mem_section' variable will never be NULL, which can lead to potential issues in the code logic. Although the impact and attack plausibility of this vulnerability have not been proven, it is important to address it to ensure the stability and security of the system. The vulnerability was introduced in version v2.6.14 of the Linux Kernel and has been fixed in version v4.19.238.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

The vulnerability in the mm/sparsemem module of the Kernel package can potentially impact the stability and security of the system. It is recommended to update the Linux Kernel to version v4.19.238 or later to address this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.

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FAQ

The impact of this vulnerability is not yet proven, but it has the potential to affect the stability and security of the system.

You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and Vulert will analyze it in real-time.

There is no known exploit for this vulnerability at the moment.

This vulnerability specifically affects the Kernel package, but it is always recommended to keep all software and dependencies up to date to ensure overall system security.

You can find more information about this vulnerability in the GSD-2022-1002300.json file available in the GSD database on GitHub: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1002xxx/GSD-2022-1002300.json

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How To Fix

No fixed version is published for this vulnerability.

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