Fix rq-qos breakage in Linux Kernel

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-2022-1001600: block: fix rq-qos breakage from skipping rq_qos_done_bio(). Affects Kernel versions >= a647a524a46736786c95cdb553a070322ca096e3, < dbd20bb904ad5731aaca8d009367a930d6ada111. 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 Linux Kernel is the core component of the Linux operating system, responsible for managing system resources and providing an interface for applications to interact with the hardware. It is widely used in various devices, including servers, desktops, and embedded systems. The rq-qos subsystem in the Linux Kernel is responsible for managing the quality of service for block I/O requests. It ensures that requests are prioritized based on their importance and allocated appropriate resources. However, a vulnerability has been discovered in the rq-qos subsystem that could lead to a breakage in the handling of block I/O requests.

Vulnerability Detail

The vulnerability in the rq-qos subsystem arises from the skipping of the rq_qos_done_bio() function. This function is responsible for marking the completion of a block I/O request and releasing any associated resources. By skipping this function, the subsystem fails to properly handle the completion of requests, leading to potential resource leaks and incorrect behavior. The impact of this vulnerability can vary depending on the specific usage scenario, but it could potentially result in data corruption, system instability, or denial of service.

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

There is no specific workaround mentioned for this vulnerability.

Conclusion

The vulnerability in the rq-qos subsystem of the Linux Kernel can lead to breakage in the handling of block I/O requests, potentially resulting in data corruption, system instability, or denial of service. It is crucial to update the Linux Kernel to version v5.16.19 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for Kernel →