CVE-2026-80624 (GCVE-0-2026-80624)

Vulnerability from cvelistv5 – Published: 2026-08-28 06:48 – Updated: 2026-08-28 06:48
VLAI
Title
mfd: cs42l43: Sanity check firmware size
Summary
In the Linux kernel, the following vulnerability has been resolved: mfd: cs42l43: Sanity check firmware size Currently the code checks if a firmware was received, however it does not verify that the firmware size is larger than the firmware header. As the firmware pointer is dereferenced as a pointer to the header structure this could lead to an out of bounds memory access. Add the missing check.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: ace6d14481386ec6c1b63cc2b24c71433a583dc2 , < 2ce02059ceb6311a33026b62e6e4dc4ed22a3aef (git)
Affected: ace6d14481386ec6c1b63cc2b24c71433a583dc2 , < 197a4c54d8a94fe2fb7829661b29f0859c10feb5 (git)
Affected: ace6d14481386ec6c1b63cc2b24c71433a583dc2 , < d35e4032f16d7621468c8b56816e7935ebf590a7 (git)
Affected: ace6d14481386ec6c1b63cc2b24c71433a583dc2 , < 17d79248b4f370663f9d351409a130fc1ed9416d (git)
Affected: ace6d14481386ec6c1b63cc2b24c71433a583dc2 , < b6ef1a74b3ec254f87a6a3c554fe8f8083ebd37c (git)
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Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/mfd/cs42l43.c"
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          "vendor": "Linux",
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            },
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              "status": "unaffected",
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              "version": "6.18.40",
              "versionType": "semver"
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              "version": "7.1.5",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "versionStartIncluding": "6.6",
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                },
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                },
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                },
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                },
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                  "versionEndExcluding": "7.2",
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmfd: cs42l43: Sanity check firmware size\n\nCurrently the code checks if a firmware was received, however it does\nnot verify that the firmware size is larger than the firmware header. As\nthe firmware pointer is dereferenced as a pointer to the header\nstructure this could lead to an out of bounds memory access. Add the\nmissing check."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-28T06:48:42.983Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2ce02059ceb6311a33026b62e6e4dc4ed22a3aef"
        },
        {
          "url": "https://git.kernel.org/stable/c/197a4c54d8a94fe2fb7829661b29f0859c10feb5"
        },
        {
          "url": "https://git.kernel.org/stable/c/d35e4032f16d7621468c8b56816e7935ebf590a7"
        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/b6ef1a74b3ec254f87a6a3c554fe8f8083ebd37c"
        }
      ],
      "title": "mfd: cs42l43: Sanity check firmware size",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80624",
    "datePublished": "2026-08-28T06:48:42.983Z",
    "dateReserved": "2026-08-26T14:34:25.775Z",
    "dateUpdated": "2026-08-28T06:48:42.983Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-80624",
      "date": "2026-09-01",
      "epss": "0.00168",
      "percentile": "0.06282"
    },
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-09-01T10:57:32+00:00",
      "cve": "CVE-2026-80624",
      "id": "CVE-2026-80624",
      "initial_release_date": "2026-08-28T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: mfd: cs42l43: Sanity check firmware size",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80624.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.