Double Free Affecting kernel-rt-core package, versions <0:4.18.0-372.32.1.rt7.189.el8_6


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.05% (24th percentile)

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  • Snyk IDSNYK-ALMALINUX8-KERNELRTCORE-5634184
  • published28 May 2023
  • disclosed25 Oct 2022

Introduced: 25 Oct 2022

CVE-2022-2588  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 kernel-rt-core to version 0:4.18.0-372.32.1.rt7.189.el8_6 or higher.
This issue was patched in ALSA-2022:7134.

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:8 relevant fixed versions and status.

It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0.

CVSS Scores

version 3.1