Vulnerability in Kernel: media: v4l2-core: fix VIDIOC_DQEVENT handling on non-x86
Summary
GSD-2021-1002531: media: v4l2-core: fix VIDIOC_DQEVENT handling on non-x86. Affects Kernel versions >= c344f07aa1b4ba38ca8fabe407a2afe2f436323c, < 75fa2dadb7c26010eef19185eaff40c960a185fd. No fix is published. How to fix ↓
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Background
The Kernel is a fundamental component of the Linux operating system that acts as a bridge between the hardware and software layers. It provides essential functionalities, such as managing system resources, handling input/output operations, and facilitating communication between different software components. The media subsystem within the Kernel includes drivers and frameworks for handling multimedia devices, such as cameras and video capture cards. One of the core components of the media subsystem is v4l2-core, which is responsible for managing Video4Linux2 (V4L2) devices. V4L2 is a framework that allows applications to access and control video devices on Linux systems. However, a vulnerability has been discovered in the v4l2-core module that affects its handling of VIDIOC_DQEVENT on non-x86 architectures.
Vulnerability Detail
The vulnerability in the v4l2-core module's handling of VIDIOC_DQEVENT on non-x86 architectures can potentially lead to security issues. Although the impact and attack plausibility have not been proven, it is crucial to address this vulnerability to ensure the integrity and security of the system. The vulnerability was introduced in Linux Kernel version v5.14 by commit c344f07aa1b4ba38ca8fabe407a2afe2f436323c and has been fixed in version v5.15.6 by commit 75fa2dadb7c26010eef19185eaff40c960a185fd. The exact details of the vulnerability and its potential ramifications are not provided in the available information.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
In conclusion, a vulnerability has been identified in the v4l2-core module of the Linux Kernel, specifically related to the handling of VIDIOC_DQEVENT on non-x86 architectures. While the exact impact and attack plausibility are not provided, it is crucial to update the Kernel to version v5.15.6 or later to mitigate any potential security risks. For more information and assistance with vulnerability remediation, please contact DevNack.com.
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FAQ
The exact impact of this vulnerability is not provided in the available information. However, it is important to address it to ensure the security and stability of the system.
You can use tools like Vulert (https://vulert.com) to check if your system is affected by this vulnerability. Vulert uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities in the software.
No specific workarounds are mentioned in the available information. It is recommended to update the Linux Kernel to the fixed version.
More information about the fix can be found in the Linux Kernel source code repository. You can refer to the commit 75fa2dadb7c26010eef19185eaff40c960a185fd for details.
For further support on vulnerability remediation, you can reach out to info@devnack.com.
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