Memory Leak Fix in Linux Kernel: Addressing CVE-2023-53014 in Debian Packages
Summary
CVE-2023-53014: In the Linux kernel, the following vulnerability has been resolved: dmaengine: tegra: Fix memory leak in terminate_all() Terminate vdesc when terminating an ongoing transfer. Affects linux versions < 6.1.11-1. Fixed in 6.1.11-1. How to fix ↓
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Background
The Linux kernel is the core component of the Linux operating system, responsible for managing hardware resources and providing essential services to applications. It is widely used in various distributions, including Debian. The kernel's dmaengine subsystem, which manages direct memory access (DMA) operations, is crucial for efficient data transfer between devices. However, a vulnerability was identified that could lead to memory leaks during the termination of ongoing transfers, potentially affecting system performance and stability.
Vulnerability Detail
CVE-2023-53014 is a vulnerability in the Linux kernel's dmaengine subsystem, specifically within the Tegra driver. The issue arises when an ongoing DMA transfer is terminated without properly handling the associated virtual descriptor (vdesc). This oversight can result in memory leaks, as the vdesc may not be freed correctly, leading to increased memory consumption over time. If left unaddressed, this vulnerability could degrade system performance and lead to resource exhaustion, impacting the overall reliability of the system.
How To Fix
Minimum fixed version
6.1.11-1
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 mentioned for this vulnerability. The best course of action is to apply the patch by updating to the fixed version of the Linux package.
Conclusion
CVE-2023-53014 is a significant vulnerability in the Linux kernel that can lead to memory leaks during DMA transfer terminations. It is essential to update to the patched version of the Linux package to ensure system stability and performance. Utilizing tools like Vulert can help monitor and alert for such vulnerabilities in real-time.
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FAQ
CVE-2023-53014 is a vulnerability in the Linux kernel that can lead to memory leaks when terminating ongoing DMA transfers.
If exploited, this vulnerability can cause increased memory usage, potentially leading to performance degradation and system instability.
Yes, a patch is available in the form of an updated Linux package version 6.1.11-1 for Debian 12 and 13.
You can use Vulert, which monitors open-source vulnerabilities in your software. By using the Vulert playground, you can check if your application is affected without any signup.
While there are no specific workarounds, it is crucial to plan for an update as soon as possible to mitigate the risk associated with this vulnerability.
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