Vulnerability in comedi: vmk80xx package - Fix for tx buffer size expression

Kernel Updated 02 Oct 2025

Summary

31/07/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1004838: comedi: vmk80xx: fix expression for tx buffer size. Affects Kernel versions >= 7a2021b896de1ad559d33b5c5cdd20b982242088, < 8b65a17d21412bd20e04d110b0e4bfed1ff0cb80. No fix is published. How to fix ↓

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Background

The comedi: vmk80xx package is a component of the Linux Kernel ecosystem. It provides support for the VMK-80xx series of data acquisition devices. These devices are used for various data acquisition and control applications. The package includes drivers and utilities for interacting with the VMK-80xx devices. However, a vulnerability has been identified in the package related to the expression used for the transmission (tx) buffer size.

Vulnerability Detail

The vulnerability in the comedi: vmk80xx package arises from an incorrect expression used for calculating the size of the tx buffer. This can lead to buffer overflows or other memory-related issues when transmitting data. An attacker could potentially exploit this vulnerability to execute arbitrary code, escalate privileges, or cause a denial-of-service condition. The vulnerability was introduced in version v4.19.217 of the Linux Kernel and has been fixed in version v4.19.249.

How To Fix

No fixed version is published for this vulnerability.

To fix this vulnerability, it is recommended to update the Linux Kernel to version v4.19.249 or later. This can be done by pulling the latest updates from the official Linux Kernel repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/) and rebuilding the kernel. Alternatively, users can wait for their Linux distribution to provide an updated package that includes the fix.

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Workaround

There is no specific workaround mentioned for this vulnerability. However, users can mitigate the risk by ensuring they are running an updated version of the Linux Kernel and regularly applying security patches.

Conclusion

The vulnerability in the comedi: vmk80xx package related to the expression for tx buffer size has been identified and fixed in the Linux Kernel version v4.19.249. Users are advised to update their Linux Kernel to the latest version to mitigate the risk. For further support on vulnerability remediation, you can contact DevNack.com.

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