High 7.8Published May 6, 2026

CVE-2026-43150perf/arm-cmn: Reject unsupported hardware configurations

Updated under an hour ago (Oct 27, 2026, 12:10 PM ET)

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

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.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-122
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	28fa550a49e818d6445e787f584759b1bf21d9d4 builds before 7e2c200010aa93fa78201da959b4ac6b9f8fed0b; from 7819e05a0dceac20c5ff78ec9b252faf3b76b824 before d3e837e11ee9ed08df229272319199003ba00379; 7819e05a0dceac20c5ff78ec9b252faf3b76b824 builds before 00d69f21ef2ab00e6156c764d89e2b3539eb2f33; 7819e05a0dceac20c5ff78ec9b252faf3b76b824 builds before 08c7eadd8a934a1968e1aeeee8b61b853b99fb3a; from 7819e05a0dceac20c5ff78ec9b252faf3b76b824 before a251d866f50b6a4c95901fa722025065679c2eca; 7819e05a0dceac20c5ff78ec9b252faf3b76b824 builds before 36c0de02575ce59dfd879eb4ef63d53a68bbf9ce; from 6.1.63 before 6.1.165	CNA record
linux linux_kernel linux:linux_kernel	from 6.1.63 before 6.1.165; from 6.5 before 6.6.128; from 6.7 before 6.12.75; from 6.13 before 6.18.16; from 6.19 before 6.19.6	NVD

References

References

https://git.kernel.org/stable/c/7e2c200010aa93fa78201da959b4ac6b9f8fed0b	patch
https://git.kernel.org/stable/c/d3e837e11ee9ed08df229272319199003ba00379	patch
https://git.kernel.org/stable/c/00d69f21ef2ab00e6156c764d89e2b3539eb2f33	patch
https://git.kernel.org/stable/c/08c7eadd8a934a1968e1aeeee8b61b853b99fb3a	patch
https://git.kernel.org/stable/c/a251d866f50b6a4c95901fa722025065679c2eca	patch
https://git.kernel.org/stable/c/36c0de02575ce59dfd879eb4ef63d53a68bbf9ce	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.