Memory Leak in drm/nouveau/debugfs in Linux Kernel
Summary
GSD-2021-1001624: drm/nouveau/debugfs: fix file release memory leak. Affects Kernel versions >= 6e9fc177399f08446293fec7607913fdbc95e191, < f69556a42043b5444ca712ee889829ba89fdcba8. No fix is published. How to fix ↓
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Background
The Linux Kernel is a widely used open-source operating system kernel that serves as the foundation for various Linux distributions. It provides essential functionality for hardware abstraction, process management, memory management, and device drivers. The drm/nouveau/debugfs component within the kernel is responsible for providing debug information and configuration options for the Nouveau graphics driver, which supports NVIDIA GPUs. However, a vulnerability has been identified in this component that can lead to a memory leak.
Vulnerability Detail
The vulnerability in drm/nouveau/debugfs allows an attacker to trigger a memory leak when releasing a file. This can result in the consumption of excessive memory resources, leading to performance degradation or even denial of service. The issue was introduced in version v4.5 of the Linux Kernel and has been fixed in version v5.10.73. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been mentioned for this vulnerability.
Conclusion
In conclusion, a memory leak vulnerability has been identified in the drm/nouveau/debugfs component of the Linux Kernel. It is recommended to update the kernel to version v5.10.73 or later to mitigate this issue. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The drm/nouveau/debugfs component provides debug information and configuration options for the Nouveau graphics driver, which supports NVIDIA GPUs.
A memory leak occurs when a program or system fails to release memory that is no longer needed, resulting in the gradual consumption of available memory resources.
The memory leak caused by this vulnerability can lead to performance degradation or denial of service if excessive memory resources are consumed.
You can use Vulert's playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground, and it will provide real-time monitoring and alerts for open-source vulnerabilities.
You can refer to the vulnerability details in the Vulert database: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1001xxx/GSD-2021-1001624.json
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