Vulnerability in video: fbdev: clcdfb
Summary
GSD-2022-1003026: video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup. Affects Kernel versions >= d10715be03bd8bad59ddc50236cb140c3bd73c7b, < bbb2a24e863b6a10129546a0a4ceea2f07deec39. No fix is published. How to fix ↓
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Background
The video: fbdev: clcdfb package is a component of the Linux Kernel. It provides support for framebuffer devices, which are used to display graphics on a computer screen. The clcdfb driver specifically handles the configuration and management of framebuffer memory. This vulnerability, identified as GSD-2022-1003026, affects the clcdfb_of_vram_setup function in the clcdfb driver. The function fails to properly release a reference count, leading to a resource leak. This vulnerability was introduced in version v3.17 of the Linux Kernel and has been fixed in version v5.17.14.
Vulnerability Detail
The vulnerability in the clcdfb_of_vram_setup function can result in a refcount leak. This can lead to resource exhaustion and potential denial-of-service attacks. An attacker may be able to exploit this vulnerability to consume excessive resources, causing system instability or crashes. The vulnerability was discovered and reported by an automated tool, and its impact and attack plausibility have not been proven. However, it is still important to address this vulnerability to ensure the stability and security of the system.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround provided for this vulnerability. It is recommended to apply the fix by updating the Linux Kernel to the latest version.
Conclusion
The video: fbdev: clcdfb package in the Linux Kernel is vulnerable to a refcount leak in the clcdfb_of_vram_setup function. This vulnerability can lead to resource exhaustion and potential denial-of-service attacks. It is recommended to update the Linux Kernel to version v5.17.14 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can lead to resource exhaustion and potential denial-of-service attacks. It may cause system instability or crashes.
This vulnerability was discovered and reported by an automated tool.
No, the impact and attack plausibility of this vulnerability have not been proven.
It is recommended to update the Linux Kernel to version v5.17.14 or later, which includes the fix for this vulnerability.
Users can obtain the updated version of the Linux Kernel from the official repository: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/.
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