Deadlock Vulnerability in s390/qeth Package

Kernel Updated 02 Oct 2025

Summary

19/10/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2021-1001741: s390/qeth: Fix deadlock in remove_discipline. Affects Kernel versions >= b41b554c1ee75070a14c02a88496b1f231c7eacc, < 0184084365c4d0a99ddd2ab1e1d8dbf9fd3c4714. 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 s390/qeth package is a component of the Linux Kernel that provides support for the IBM System z network device driver. It enables communication between the host system and IBM System z network devices. The package is responsible for managing the discipline of the network device, which includes handling various operations and configurations. However, a vulnerability has been discovered in the package that can lead to a deadlock situation.

Vulnerability Detail

The vulnerability in the s390/qeth package arises from a deadlock condition that can occur during the removal of the network device's discipline. When attempting to remove the discipline, a deadlock can be triggered, causing the system to become unresponsive. This vulnerability was introduced in version v5.11 of the Linux Kernel and has been fixed in version v5.14.10. The impact and attack plausibility of this vulnerability have not been proven yet.

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 known workaround for this vulnerability. It is essential to apply the fix by updating the Linux Kernel to the recommended version.

Conclusion

In conclusion, the s390/qeth package in the Linux Kernel is vulnerable to a deadlock condition during the removal of the network device's discipline. To mitigate this vulnerability, it is crucial to update the Linux Kernel to version v5.14.10 or later. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for Kernel →