Vulnerability in Kernel package: video: fbdev: sm712fb

Kernel Updated 02 Oct 2025

Summary

24/04/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1002447: video: fbdev: sm712fb: Fix crash in smtcfb_read(). Affects Kernel versions < 2a616cc4513217c850865482cbc0bc6e7188580c. No fix is published. How to fix ↓

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Background

The Kernel package is a fundamental component of the Linux operating system, responsible for managing the system's core functions and providing an interface between hardware and software. The video: fbdev: sm712fb driver is a part of the Kernel package and is specifically designed for the Silicon Motion SM712 graphics controller. This driver enables the display functionality for systems utilizing this graphics controller. However, a vulnerability has been discovered in the sm712fb driver that can lead to a crash in the smtcfb_read() function.

Vulnerability Detail

The vulnerability in the sm712fb driver arises from a flaw in the smtcfb_read() function. This flaw can be exploited by an attacker to trigger a crash in the system, potentially leading to a denial of service (DoS) condition. The impact and attack plausibility of this vulnerability have not been proven yet. It is important to note that this vulnerability has been fixed in the Linux Kernel version v4.14.276 by commit 2a616cc4513217c850865482cbc0bc6e7188580c.

How To Fix

No fixed version is published for this vulnerability.

To fix this vulnerability, it is recommended to update the Linux Kernel package to version v4.14.276 or later. This can be done by pulling the latest updates from the official Linux Kernel repository using the following command:

$ git pull https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/

After updating the Kernel package, ensure that the system is restarted to apply the changes.

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Conclusion

In conclusion, the Kernel package's video: fbdev: sm712fb driver is vulnerable to a crash in the smtcfb_read() function. This vulnerability can potentially lead to a denial of service (DoS) condition. It is crucial to update the Linux Kernel package to version v4.14.276 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.

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