Memory Leak Vulnerability in Linux Kernel - CVE-2023-53424
Summary
CVE-2023-53424: In the Linux kernel, the following vulnerability has been resolved: clk: mediatek: fix of_iomap memory leak Smatch reports: drivers/clk/mediatek/clk-mtk.c:583 mtk_clk_simple_probe() warn: 'base' from of_iomap() not relea... Affects linux versions 6.1.106-1 – 6.9.9-1. No fix is published. How to fix ↓
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Background
The Linux kernel is the core component of many operating systems, managing hardware resources and providing essential services to software applications. It is known for its stability, performance, and versatility, supporting a wide range of devices from servers to embedded systems. This vulnerability specifically affects the Mediatek clock driver within the kernel, where improper handling of memory can lead to resource leaks.
Vulnerability Detail
CVE-2023-53424 is a memory leak vulnerability found in the Mediatek clock driver of the Linux kernel. The issue arises in the function mtk_clk_simple_probe(), where the memory allocated by of_iomap() is not released if an error occurs during the initialization process. This oversight can lead to increased memory consumption over time, potentially exhausting system resources and affecting overall system performance. The vulnerability was identified through static analysis tools like Smatch, which highlighted the failure to release allocated memory under certain conditions.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. The best course of action is to apply the available patch as soon as possible.
Conclusion
CVE-2023-53424 presents a significant memory leak vulnerability in the Linux kernel's Mediatek clock driver. Users are urged to update their systems to the patched version to avoid potential resource exhaustion and maintain system stability. Regular monitoring and timely updates are essential for safeguarding against such vulnerabilities.
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FAQ
CVE-2023-53424 is a memory leak vulnerability in the Mediatek clock driver of the Linux kernel, which can lead to resource exhaustion.
If exploited, this vulnerability can cause increased memory usage, potentially leading to system slowdowns or crashes due to resource exhaustion.
Yes, a patch is available in version 6.4.4-1 for Debian 13 and 14. It is recommended to update to this version to mitigate the risk.
You can use the Vulert platform to monitor and alert for open-source vulnerabilities in your software. By uploading your manifest file, you can check for vulnerabilities like CVE-2023-53424.
While there are no specific workarounds, it is crucial to monitor your system's memory usage and apply the patch as soon as possible to prevent potential issues.
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