wifi: mt76: mt7996: validate default EEPROM firmware size

{
  "id": "4566cf0dd136366926eda3ead707a7c1c9939a1a128532ca38bb58704baa6e8f",
  "url": "https://osv.dev/vulnerability/CVE-2026-80933",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: mt76: mt7996: validate default EEPROM firmware size",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: validate default EEPROM firmware size The default EEPROM firmware is parsed and copied as a full EEPROM without checking its length. A truncated file can make the driver read beyond the firmware buffer during variant validation or the fallback copy. Reject files shorter than MT7996_EEPROM_SIZE before parsing or copying the firmware.",
    "evidence": "osv:CVE-2026-80933",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.157",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.110",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.50",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-80933",
      "aliases": [
        "CVE-2026-80933"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "98686cd21624c75a043e96812beadddf4f6f48e5"
                },
                {
                  "fixed": "b4bf67cc0871b13103c404b38e332b9d4403a0da"
                },
                {
                  "fixed": "127a291f4c8069a4e71906938402cacfe24ee8cd"
                },
                {
                  "fixed": "03b81f015dbb29807ce1ec6d45537d658abdac69"
                },
                {
                  "fixed": "7074ec3769820302f1ccf8794a40a6582153b820"
                },
                {
                  "fixed": "653c6e289b13cc6942f3e8f8e3c568e70fa42d1f"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80933.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.157"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.110"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.50"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.2.4"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80933.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:40.445431557Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/03b81f015dbb29807ce1ec6d45537d658abdac69",
        "https://git.kernel.org/stable/c/127a291f4c8069a4e71906938402cacfe24ee8cd",
        "https://git.kernel.org/stable/c/653c6e289b13cc6942f3e8f8e3c568e70fa42d1f",
        "https://git.kernel.org/stable/c/7074ec3769820302f1ccf8794a40a6582153b820",
        "https://git.kernel.org/stable/c/b4bf67cc0871b13103c404b38e332b9d4403a0da",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80933.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-80933",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80933.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-80933",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 508197,
  "published_at": "2026-09-11T19:42:07.754+00:00"
}