smb: client: fix incomplete backport in cfids_invalidation_worker()

{
  "id": "0f78958e240135b3506e9b0691c6050120f88afb4c720ba37acaad3343cc01bf",
  "url": "https://osv.dev/vulnerability/CVE-2025-68226",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "smb: client: fix incomplete backport in cfids_invalidation_worker()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: smb: client: fix incomplete backport in cfids_invalidation_worker() The previous commit bdb596ceb4b7 (\"smb: client: fix potential UAF in smb2_close_cached_fid()\") was an incomplete backport and missed one kref_put() call in cfids_invalidation_worker() that should have been converted to close_cached_dir().",
    "evidence": "osv:CVE-2025-68226",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.17.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-68226",
      "aliases": [
        "CVE-2025-68226"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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": "bdb596ceb4b7c3f28786a33840263728217fbcf5"
                },
                {
                  "fixed": "abd29b6e17a918fdd68352ce4813e167acc8727e"
                }
              ]
            }
          ],
          "versions": [
            "v6.17.9",
            "v6.17.8"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68226.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.17.8"
                },
                {
                  "fixed": "6.17.10"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68226.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:45.627737108Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/abd29b6e17a918fdd68352ce4813e167acc8727e",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68226.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-68226",
        "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-2025-68226.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-68226",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 513504,
  "published_at": "2025-12-16T13:57:19.268+00:00"
}