Vulnerability in mt76: mt7615 package - Fix for tx skb dma unmap

Kernel Updated 02 Oct 2025

Summary

31/05/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

UVI-2021-1000256: mt76: mt7615: fix tx skb dma unmap. Affects Kernel versions >= 27d5c528a7ca08dcd44877fdd9fc08b76630bf77, < 821ae236ccea989a1fcc6abfc4d5b74ad4ba39d2. No fix is published. How to fix ↓

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or Browse

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats

SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml

Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile

Javascript package-lock.json · yarn.lock · pnpm-lock.yaml

PHP composer.lock

Python poetry.lock · requirements.txt · Pipfile.lock

Go go.mod

Rust Cargo.lock

Ruby Gemfile.lock

Dart pubspec.lock

C/C++ conan.lock

Elixir mix.lock

Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Background

The mt76: mt7615 package is a component of the Linux Kernel ecosystem. It provides support for the MediaTek MT7615 wireless chipset. This chipset is commonly used in various networking devices and provides Wi-Fi connectivity. The package includes drivers and firmware necessary for the proper functioning of the chipset.

Vulnerability Detail

The vulnerability identified in the mt76: mt7615 package is related to the handling of transmit (tx) skb dma unmap. The issue was introduced in version v5.10 of the Linux Kernel by commit 27d5c528a7ca08dcd44877fdd9fc08b76630bf77 and was fixed in version v5.12.4 by commit 821ae236ccea989a1fcc6abfc4d5b74ad4ba39d2. The vulnerability could potentially be exploited by an attacker to cause a denial-of-service (DoS) condition or execute arbitrary code on a vulnerable system. However, the actual impact and attack plausibility have not been proven.

How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

No specific workaround has been mentioned for this vulnerability.

Conclusion

The mt76: mt7615 package in the Linux Kernel has been found to have a vulnerability related to tx skb dma unmap. It is recommended to update the Kernel to version v5.12.4 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.

See every vulnerability recorded for Kernel →