Out-of-bounds Read Affecting ocfs2-kmp-default package, versions <5.14.21-150500.55.133.1


Severity

Recommended
high

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.01% (3rd percentile)

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  • Snyk IDSNYK-SLES155-OCFS2KMPDEFAULT-15152230
  • published30 Jan 2026
  • disclosed28 Jan 2026

Introduced: 28 Jan 2026

CVE-2023-53254  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 ocfs2-kmp-default to version 5.14.21-150500.55.133.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ocfs2-kmp-default package and not the ocfs2-kmp-default package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

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

cacheinfo: Fix shared_cpu_map to handle shared caches at different levels

The cacheinfo sets up the shared_cpu_map by checking whether the caches with the same index are shared between CPUs. However, this will trigger slab-out-of-bounds access if the CPUs do not have the same cache hierarchy. Another problem is the mismatched shared_cpu_map when the shared cache does not have the same index between CPUs.

CPU0 I D L3 index 0 1 2 x ^ ^ ^ ^ index 0 1 2 3 CPU1 I D L2 L3

This patch checks each cache is shared with all caches on other CPUs.

CVSS Base Scores

version 3.1