Race Condition Affecting kernel-rt-core package, versions <0:5.14.0-284.11.1.rt14.296.el9_2


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.05% (16th 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 Race Condition vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-ALMALINUX9-KERNELRTCORE-5621850
  • published28 May 2023
  • disclosed9 May 2023

Introduced: 9 May 2023

CVE-2022-39188  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 kernel-rt-core to version 0:5.14.0-284.11.1.rt14.296.el9_2 or higher.
This issue was patched in ALSA-2023:2148.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-core package and not the kernel-rt-core package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

An issue was discovered in include/asm-generic/tlb.h in the Linux kernel before 5.19. Because of a race condition (unmap_mapping_range versus munmap), a device driver can free a page while it still has stale TLB entries. This only occurs in situations with VM_PFNMAP VMAs.

CVSS Scores

version 3.1