Memory Leak Vulnerability in Linux Kernel - Debian Packages
Summary
DEBIAN-CVE-2024-26655: In the Linux kernel, the following vulnerability has been resolved: Fix memory leak in posix_clock_open() If the clk ops.open() function returns an error, we don't release the pccontext we allocated for this clock. Affects linux versions < 6.7.12-1. Fixed in 6.7.12-1. How to fix ↓
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Background
The Linux kernel is the core component of the Debian operating system, responsible for managing hardware resources and providing essential services to applications. It is a critical piece of software that ensures system stability and performance. The kernel is continuously updated to address security vulnerabilities and improve functionality. This specific vulnerability affects Debian versions 13 and 14, highlighting the importance of maintaining an up-to-date kernel to mitigate risks.
Vulnerability Detail
In the Linux kernel, a memory leak occurs in the posix_clock_open() function when the clk ops.open() function returns an error. The allocated pccontext for the clock is not released, leading to potential memory exhaustion over time. This vulnerability can result in degraded system performance and stability, especially in environments with limited resources. The issue has been identified and resolved in the patched version of the kernel.
How To Fix
Minimum fixed version
6.7.12-1
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, there are no specific workarounds provided for this vulnerability. The best course of action is to apply the patch by updating the package as mentioned above.
Conclusion
The memory leak vulnerability in the Linux kernel poses a risk to system performance and stability. Users of Debian 13 and 14 are advised to update their Linux packages to the patched version 6.7.12-1 to mitigate this issue. Regular updates and monitoring for vulnerabilities are essential for maintaining a secure system.
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FAQ
The vulnerability is a memory leak in the posix_clock_open() function of the Linux kernel, which can lead to system performance issues.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected by this vulnerability.
If left unaddressed, the memory leak can lead to system instability and performance degradation, particularly in resource-constrained environments.
Yes, a patch is available in version 6.7.12-1 of the Linux package for Debian 13 and 14.
It is recommended to regularly check for updates and apply them promptly to ensure your system is secure and functioning optimally.
References
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