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

perf/arm-cmn: Reject unsupported hardware configurations

So far we've been fairly lax about accepting both unknown CMN models
(at least with a warning), and unknown revisions of those which we
do know, as although things do frequently change between releases,
typically enough remains the same to be somewhat useful for at least
some basic bringup checks. However, we also make assumptions of the
maximum supported sizes and numbers of things in various places, and
there's no guarantee that something new might not be bigger and lead
to nasty array overflows. Make sure we only try to run on things that
actually match our assumptions and so will not risk memory corruption.

We have at least always failed on completely unknown node types, so
update that error message for clarity and consistency too.

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 07 May 2026 03:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-120

Thu, 07 May 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-131
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate


Wed, 06 May 2026 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-120

Wed, 06 May 2026 12:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: perf/arm-cmn: Reject unsupported hardware configurations So far we've been fairly lax about accepting both unknown CMN models (at least with a warning), and unknown revisions of those which we do know, as although things do frequently change between releases, typically enough remains the same to be somewhat useful for at least some basic bringup checks. However, we also make assumptions of the maximum supported sizes and numbers of things in various places, and there's no guarantee that something new might not be bigger and lead to nasty array overflows. Make sure we only try to run on things that actually match our assumptions and so will not risk memory corruption. We have at least always failed on completely unknown node types, so update that error message for clarity and consistency too.
Title perf/arm-cmn: Reject unsupported hardware configurations
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-06T11:27:32.359Z

Reserved: 2026-05-01T14:12:55.989Z

Link: CVE-2026-43150

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-06T12:16:32.690

Modified: 2026-05-06T13:07:51.607

Link: CVE-2026-43150

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-05-06T00:00:00Z

Links: CVE-2026-43150 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-07T04:45:16Z

Weaknesses