Double Free Vulnerability in drm/amd/pm Package
Summary
GSD-2022-1002831: drm/amd/pm: fix double free in si_parse_power_table(). Affects Kernel versions < 43eb9b667b95f2a31c63e8949b0d2161b9be59c3. No fix is published. How to fix ↓
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Background
The drm/amd/pm package is a component of the Linux Kernel that handles power management for AMD graphics cards. It provides functionality for parsing power tables and managing power states. This package is critical for proper functioning and performance of AMD graphics cards on Linux systems.
Vulnerability Detail
The vulnerability, identified as GSD-2022-1002831, is a double free issue in the si_parse_power_table() function of the drm/amd/pm package. A double free vulnerability occurs when a program attempts to free a memory block that has already been freed. This can lead to memory corruption and potentially allow an attacker to execute arbitrary code or cause a denial-of-service condition. The vulnerability was fixed in Linux Kernel version v5.18.3 by commit 43eb9b667b95f2a31c63e8949b0d2161b9be59c3.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.18.3 or later. This can be done by downloading the latest stable version of the Linux Kernel from the official repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/) and following the installation instructions provided. Once the updated kernel is installed, the double free vulnerability in si_parse_power_table() will be patched.
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Workaround
There is no known workaround for this vulnerability. It is essential to update the Linux Kernel to the fixed version to ensure the security and stability of the system.
Conclusion
The double free vulnerability in the drm/amd/pm package can have severe security implications, potentially allowing an attacker to execute arbitrary code or cause a denial-of-service condition. It is crucial to update the Linux Kernel to version v5.18.3 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The double free vulnerability in si_parse_power_table() can potentially allow an attacker to execute arbitrary code or cause a denial-of-service condition. It is crucial to patch this vulnerability to prevent any potential exploitation.
You can use the Vulert Playground (https://vulert.com/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 double free vulnerability.
The vulnerability affects the drm/amd/pm package, which is responsible for power management in AMD graphics cards. Therefore, any system using an AMD graphics card and the affected package version is potentially vulnerable.
At the time of this report, there are no known public exploits targeting this specific vulnerability. However, it is always recommended to promptly apply security patches to mitigate any potential risks.
You can find more information about the fix and the Linux Kernel update in the official Linux Kernel repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/). The commit 43eb9b667b95f2a31c63e8949b0d2161b9be59c3 specifically addresses the double free vulnerability in si_parse_power_table().
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