Use After Free Affecting kernel-debug package, versions <0:4.18.0-425.3.1.el8


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.07% (23rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Use After Free vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-CENTOS8-KERNELDEBUG-9260154
  • published14 May 2025
  • disclosed26 Feb 2025

Introduced: 26 Feb 2025

CVE-2022-49426  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Centos:8 kernel-debug to version 0:4.18.0-425.3.1.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug package and not the kernel-debug package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

iommu/arm-smmu-v3-sva: Fix mm use-after-free

We currently call arm64_mm_context_put() without holding a reference to the mm, which can result in use-after-free. Call mmgrab()/mmdrop() to ensure the mm only gets freed after we unpinned the ASID.

CVSS Base Scores

version 3.1