wifi: cfg80211: fix out-of-bounds access during multi-link element defragmentation

{
  "id": "2aea81c61f7694d8822a008d3497ade2023d147e908eff48ef24b1053b0423cd",
  "url": "https://osv.dev/vulnerability/CVE-2025-37973",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: cfg80211: fix out-of-bounds access during multi-link element defragmentation",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: fix out-of-bounds access during multi-link element defragmentation Currently during the multi-link element defragmentation process, the multi-link element length added to the total IEs length when calculating the length of remaining IEs after the multi-link element in cfg80211_defrag_mle(). This could lead to out-of-bounds access if the multi-link element or its corresponding fragment elements are the last elements in the IEs buffer. To address this issue, correctly calculate the remaining IEs length by deducting the multi-link element end offset from total IEs end offset.",
    "evidence": "osv:CVE-2025-37973",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.91",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.29",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.14.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-37973",
      "aliases": [
        "CVE-2025-37973"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2481b5da9c6b2ee1fde55a1c29eb2ca377145a10"
                },
                {
                  "fixed": "73dde269a1a43e6b1aa92eba13ad2df58bfdd38e"
                },
                {
                  "fixed": "9423f6da825172b8dc60d4688ed3d147291c3be9"
                },
                {
                  "fixed": "e1c6d0c6199bd5f4cfc7a66ae7032b6e805f904d"
                },
                {
                  "fixed": "023c1f2f0609218103cbcb48e0104b144d4a16dc"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37973.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.5.0"
                },
                {
                  "fixed": "6.6.91"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.29"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.14.7"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37973.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.274024945Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/023c1f2f0609218103cbcb48e0104b144d4a16dc",
        "https://git.kernel.org/stable/c/73dde269a1a43e6b1aa92eba13ad2df58bfdd38e",
        "https://git.kernel.org/stable/c/9423f6da825172b8dc60d4688ed3d147291c3be9",
        "https://git.kernel.org/stable/c/e1c6d0c6199bd5f4cfc7a66ae7032b6e805f904d",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37973.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-37973",
        "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/2025/37xxx/CVE-2025-37973.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-37973",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 500269,
  "published_at": "2025-05-20T16:47:19.074+00:00"
}