CVE-2024-26602 Affecting kernel-rt-debug-devel package, versions <0:4.18.0-193.133.1.rt13.184.el8_2


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-RHEL8-KERNELRTDEBUGDEVEL-6675942
  • published27 Apr 2024
  • disclosed24 Feb 2024

Introduced: 24 Feb 2024

CVE-2024-26602  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade RHEL:8 kernel-rt-debug-devel to version 0:4.18.0-193.133.1.rt13.184.el8_2 or higher.
This issue was patched in RHSA-2024:2008.

NVD Description

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

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

sched/membarrier: reduce the ability to hammer on sys_membarrier

On some systems, sys_membarrier can be very expensive, causing overall slowdowns for everything. So put a lock on the path in order to serialize the accesses to prevent the ability for this to be called at too high of a frequency and saturate the machine.

CVSS Scores

version 3.1