CVE-2026-43150 (GCVE-0-2026-43150)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:27 – Updated: 2026-05-23 16:06
VLAI?
Title
perf/arm-cmn: Reject unsupported hardware configurations
Summary
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.
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 28fa550a49e818d6445e787f584759b1bf21d9d4 , < 7e2c200010aa93fa78201da959b4ac6b9f8fed0b (git)
Affected: 7819e05a0dceac20c5ff78ec9b252faf3b76b824 , < d3e837e11ee9ed08df229272319199003ba00379 (git)
Affected: 7819e05a0dceac20c5ff78ec9b252faf3b76b824 , < 00d69f21ef2ab00e6156c764d89e2b3539eb2f33 (git)
Affected: 7819e05a0dceac20c5ff78ec9b252faf3b76b824 , < 08c7eadd8a934a1968e1aeeee8b61b853b99fb3a (git)
Affected: 7819e05a0dceac20c5ff78ec9b252faf3b76b824 , < a251d866f50b6a4c95901fa722025065679c2eca (git)
Affected: 7819e05a0dceac20c5ff78ec9b252faf3b76b824 , < 36c0de02575ce59dfd879eb4ef63d53a68bbf9ce (git)
Affected: 6.1.63 , < 6.1.165 (semver)
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    Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.1.165 , ≤ 6.1.* (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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{
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/arm-cmn: Reject unsupported hardware configurations\n\nSo far we\u0027ve been fairly lax about accepting both unknown CMN models\n(at least with a warning), and unknown revisions of those which we\ndo know, as although things do frequently change between releases,\ntypically enough remains the same to be somewhat useful for at least\nsome basic bringup checks. However, we also make assumptions of the\nmaximum supported sizes and numbers of things in various places, and\nthere\u0027s no guarantee that something new might not be bigger and lead\nto nasty array overflows. Make sure we only try to run on things that\nactually match our assumptions and so will not risk memory corruption.\n\nWe have at least always failed on completely unknown node types, so\nupdate that error message for clarity and consistency too."
        }
      ],
      "metrics": [
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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        "dateUpdated": "2026-05-23T16:06:25.515Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        },
        {
          "url": "https://git.kernel.org/stable/c/36c0de02575ce59dfd879eb4ef63d53a68bbf9ce"
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    "datePublished": "2026-05-06T11:27:32.359Z",
    "dateReserved": "2026-05-01T14:12:55.989Z",
    "dateUpdated": "2026-05-23T16:06:25.515Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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