CVE-2026-43150
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.1% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Weakness
- CWE-787 · Out-of-bounds write
- Record status
- Modified
Affected
- Linux Kernel < 6.1.165
- Linux Kernel < 6.6.128
- Linux Kernel < 6.12.75
- Linux Kernel < 6.18.16
- Linux Kernel < 6.19.6
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-43150.md and follow it. Check whether this project is affected by CVE-2026-43150. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/00d69f21ef2ab00e6156c764d89e2b3539eb2f33
- https://git.kernel.org/stable/c/08c7eadd8a934a1968e1aeeee8b61b853b99fb3a
- https://git.kernel.org/stable/c/36c0de02575ce59dfd879eb4ef63d53a68bbf9ce
- https://git.kernel.org/stable/c/7e2c200010aa93fa78201da959b4ac6b9f8fed0b
- https://git.kernel.org/stable/c/a251d866f50b6a4c95901fa722025065679c2eca
- https://git.kernel.org/stable/c/d3e837e11ee9ed08df229272319199003ba00379
References
- https://git.kernel.org/stable/c/00d69f21ef2ab00e6156c764d89e2b3539eb2f33
- https://git.kernel.org/stable/c/08c7eadd8a934a1968e1aeeee8b61b853b99fb3a
- https://git.kernel.org/stable/c/36c0de02575ce59dfd879eb4ef63d53a68bbf9ce
- https://git.kernel.org/stable/c/7e2c200010aa93fa78201da959b4ac6b9f8fed0b
- https://git.kernel.org/stable/c/a251d866f50b6a4c95901fa722025065679c2eca
- https://git.kernel.org/stable/c/d3e837e11ee9ed08df229272319199003ba00379