Memory Leak Vulnerability in Linux Kernel: USB Chipidea Component
Summary
CVE-2023-53334: In the Linux kernel, the following vulnerability has been resolved: USB: chipidea: fix memory leak with using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory... Affects linux versions 5.10.103-1 – 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, providing essential services for hardware and software interactions. It is known for its stability, performance, and flexibility, supporting a wide range of hardware architectures. The USB Chipidea component is responsible for managing USB device connections. However, it has been identified to have a vulnerability that can lead to memory leaks, affecting system performance over time.
Vulnerability Detail
In the Linux kernel, a vulnerability has been identified in the USB Chipidea component related to the improper handling of memory when using the debugfs_lookup() function. This function requires a corresponding call to dput() to prevent memory leaks. Failure to do so results in memory being allocated but not released, leading to gradual memory consumption and potential system instability. The vulnerability is classified under CVE-2023-53334 and has been resolved in later versions of the package.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a workaround, users can monitor memory usage and manually clear memory if they notice excessive consumption. However, this is not a permanent solution and updating the package is strongly advised.
Conclusion
The memory leak vulnerability in the Linux kernel's USB Chipidea component poses a risk to system performance. It is crucial for users to update their systems to the patched version to mitigate this risk. Utilizing tools like Vulert can help in monitoring vulnerabilities effectively.
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FAQ
CVE-2023-53334 is a vulnerability in the Linux kernel's USB Chipidea component that can lead to memory leaks.
The vulnerability can cause gradual memory consumption, potentially leading to system instability and performance degradation.
Yes, the vulnerability has been patched in version 6.1.20-1 and later of the Linux package.
You can use tools like Vulert to monitor and alert for open-source vulnerabilities in your software without needing to access the code.
Vulert is a service that monitors open-source vulnerabilities in your software using just a manifest file like package-lock.json, providing real-time alerts.
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