wifi: iwlwifi: fix potential use after free in iwl_mld_remove_link()

{
  "id": "dbaca5a8ca1b48b14bee3406f3f514a85c6c247a2f5842b0c481967d9356a4f1",
  "url": "https://osv.dev/vulnerability/CVE-2025-68182",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: iwlwifi: fix potential use after free in iwl_mld_remove_link()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: fix potential use after free in iwl_mld_remove_link() This code frees \"link\" by calling kfree_rcu(link, rcu_head) and then it dereferences \"link\" to get the \"link->fw_id\". Save the \"link->fw_id\" first to avoid a potential use after free.",
    "evidence": "osv:CVE-2025-68182",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.17.8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-68182",
      "aliases": [
        "CVE-2025-68182"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:H/PR:N/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": "d1e879ec600f9b3bdd253167533959facfefb17b"
                },
                {
                  "fixed": "5b4a239c9f94e1606435f1842fc6fd426d607dbb"
                },
                {
                  "fixed": "77e67d5daaf155f7d0f99f4e797c4842169ec19e"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68182.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.15.0"
                },
                {
                  "fixed": "6.17.8"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68182.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.424760137Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/5b4a239c9f94e1606435f1842fc6fd426d607dbb",
        "https://git.kernel.org/stable/c/77e67d5daaf155f7d0f99f4e797c4842169ec19e",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68182.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-68182",
        "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/2025/68xxx/CVE-2025-68182.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-68182",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 518643,
  "published_at": "2025-12-16T13:43:00.435+00:00"
}