Incorrect Calculation of Buffer Size The advisory has been revoked - it doesn't affect any version of package kernel6.18-libbpf-debuginfo (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-AMZN2023-KERNEL618LIBBPFDEBUGINFO-16741664
- published18 May 2026
- disclosed6 May 2026
Introduced: 6 May 2026
NewCVE-2026-43150 (opens in a new tab)Amendment
The Amazon-Linux security team deemed this advisory irrelevant for Amazon-Linux:2023.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel6.18-libbpf-debuginfo package and not the kernel6.18-libbpf-debuginfo package as distributed by Amazon-Linux.
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.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-43150
- 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