False Positive kmemleak Report in x86/pm
Summary
GSD-2022-1002777: x86/pm: Fix false positive kmemleak report in msr_build_context(). Affects Kernel versions >= 7a9c2dd08eadd5c6943115dbbec040c38d2e0822, < c34698832cfb38666aedc31f49a9ec53ecea3413. No fix is published. How to fix ↓
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Background
The x86/pm package is a component of the Linux Kernel, which is responsible for managing power management features on x86-based systems. It provides functionality for handling CPU idle states, frequency scaling, and other power-related operations. The package is widely used in Linux distributions and is critical for efficient power management on x86 architectures.
Vulnerability Detail
The false positive kmemleak report vulnerability in x86/pm arises from a flaw in the msr_build_context() function. This vulnerability was introduced in version v4.5 of the Linux Kernel and affects all subsequent versions until v5.18.3. The vulnerability can lead to false positive reports from the kmemleak tool, which is used for detecting and tracking kernel memory leaks. Although the impact and attack plausibility have not been proven, this vulnerability could potentially result in inaccurate memory leak detection and hinder the identification of genuine memory leaks.
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 false positive kmemleak report vulnerability in x86/pm can potentially impact the accuracy of memory leak detection in the Linux Kernel. It is recommended to update the Linux Kernel to version v5.18.3 or later to mitigate this issue. Users can utilize the Vulert Playground at https://vulert.com/scanner to check if their system is affected by this vulnerability. Prompt application of security updates and adherence to best practices are crucial for maintaining a secure system.
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FAQ
The impact of this vulnerability is primarily related to the accuracy of memory leak detection in the Linux Kernel. It can result in false positive reports from the kmemleak tool, potentially hindering the identification of genuine memory leaks.
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 to identify any open-source vulnerabilities, including this specific issue.
At the time of this report, there are no known exploits for this vulnerability. However, it is always recommended to apply security updates promptly to mitigate potential risks.
The details regarding remote exploitation of this vulnerability have not been provided. However, it is generally advisable to keep systems up to date to minimize the risk of remote attacks.
For further support on vulnerability remediation or any other security-related concerns, you can reach out to info@devnack.com. Our team of experts will be happy to assist you.
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