Vulnerability in Linux Kernel: md/bitmap

Kernel Updated 02 Oct 2025

Summary

28/06/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1003899: md/bitmap: don't set sb values if can't pass sanity check. Affects Kernel versions < 422e8f7ba1e08c8e0e88d375bcb550bc2bbfe96d. 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 essential functionalities. The md/bitmap module is a part of the Linux Kernel that handles bitmap-based metadata for the Linux Software RAID subsystem. It is used to track the status of blocks within a RAID device. However, a vulnerability has been discovered in the md/bitmap module that can lead to potential security risks.

Vulnerability Detail

The vulnerability in the md/bitmap module of the Linux Kernel allows for the setting of superblock (sb) values even if they fail to pass a sanity check. This means that incorrect or malicious values can be set, potentially leading to data corruption, system instability, or unauthorized access. 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 Linux Kernel version v4.19.247 by commit 422e8f7ba1e08c8e0e88d375bcb550bc2bbfe96d.

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. The recommended approach is to update the Linux Kernel to the fixed version.

Conclusion

In conclusion, a vulnerability has been discovered in the md/bitmap module of the Linux Kernel that can lead to potential security risks. It is crucial to update the Linux Kernel to the fixed version to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.

See every vulnerability recorded for Kernel →