Node Leak Vulnerability in Linux Kernel - Debian Packages
Summary
CVE-2023-53092: In the Linux kernel, the following vulnerability has been resolved: interconnect: exynos: fix node leak in probe PM QoS error path Make sure to add the newly allocated interconnect node to the provider before adding the... Affects linux versions < 6.1.25-1. Fixed in 6.1.25-1. 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 12 and 13. The kernel's functionality includes process management, memory management, device drivers, and system calls. This vulnerability specifically affects the interconnect subsystem of the Exynos platform, where improper handling of node allocation can lead to resource leaks.
Vulnerability Detail
In the Linux kernel, a vulnerability has been identified in the interconnect subsystem related to the Exynos platform. This issue arises during the probe PM QoS error path, where a newly allocated interconnect node is not properly managed. If an error occurs after the node allocation but before it is added to the PM QoS request, the node remains allocated and is not freed, leading to a resource leak. This can potentially exhaust system resources over time, affecting system stability and performance.
How To Fix
Minimum fixed version
6.1.25-1
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 as soon as it becomes available.
Conclusion
The CVE-2023-53092 vulnerability in the Linux kernel poses a risk of resource leaks due to improper handling of interconnect nodes. Users of Debian 12 and 13 should promptly update their kernel packages to the fixed version to mitigate this risk. Utilizing tools like Vulert can help monitor and manage vulnerabilities effectively.
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FAQ
CVE-2023-53092 is a vulnerability in the Linux kernel related to the interconnect subsystem of the Exynos platform, which can lead to resource leaks.
If exploited, this vulnerability can lead to resource exhaustion, potentially causing system instability and performance degradation.
Debian 12 and 13 systems using the affected Linux kernel versions are vulnerable. You can check your system using the Vulert playground without any signup.
The best way to protect your system is to update to the patched version of the Linux kernel as soon as it is available.
Vulert monitors and alerts for open-source vulnerabilities in software using a manifest file like package-lock.json. You can check if your application is affected by this vulnerability using the Vulert playground.
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