Object Reference Loop Vulnerability in Linux Kernel Package: linux
Summary
DEBIAN-CVE-2024-53084: In the Linux kernel, the following vulnerability has been resolved: drm/imagination: Break an object reference loop When remaining resources are being cleaned up on driver close, outstanding VM mappings may result in res... Affects linux versions < 6.11.9-1. Fixed in 6.11.9-1. How to fix ↓
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Background
The 'linux' package is a core component of the Debian operating system, providing the Linux kernel that manages system resources and hardware interactions. It is essential for the operation of various applications and services within the Debian ecosystem. This package is regularly updated to address security vulnerabilities and improve performance. The vulnerability in question arises from an object reference loop during resource cleanup, which can lead to resource leaks.
Vulnerability Detail
In the Linux kernel, a vulnerability has been identified in the drm/imagination subsystem, where an object reference loop can occur during the cleanup of resources when a driver is closed. This loop involves multiple objects referencing each other, preventing the proper release of outstanding VM mappings. The PVR VM Context holds a soft reference to the VM mappings, leading to potential memory leaks if these mappings are not freed before the context is destroyed. This vulnerability can result in degraded system performance and increased memory usage.
How To Fix
Minimum fixed version
6.11.9-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, no specific workarounds are provided for this vulnerability. It is advisable to apply the patch as soon as it becomes available to mitigate the risk.
Conclusion
The identified vulnerability in the Linux kernel package 'linux' poses a risk of resource leaks due to an object reference loop during driver cleanup. Users are encouraged to update to the patched version to ensure system stability and security.
See every vulnerability recorded for linux →
FAQ
The vulnerability involves an object reference loop in the Linux kernel that can lead to resource leaks during driver cleanup.
You can use the Vulert platform to monitor and alert for open-source vulnerabilities. Visit Vulert Scanner to check if your application is affected without any signup.
If exploited, this vulnerability can lead to increased memory usage and degraded system performance due to resource leaks.
Yes, a patch is available in version 6.11.9-1 of the 'linux' package.
While no specific workarounds are provided, it is crucial to apply the patch as soon as possible to mitigate risks.
References
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