smb: client: guarantee refcounted children from parent session

{
  "id": "8e5238be56ac9899fde8c146e853d13e8db4fa39bc1a971dcd71b4a68c7c3b18",
  "url": "https://osv.dev/vulnerability/CVE-2024-35869",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "smb: client: guarantee refcounted children from parent session",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: smb: client: guarantee refcounted children from parent session Avoid potential use-after-free bugs when walking DFS referrals, mounting and performing DFS failover by ensuring that all children from parent @tcon->ses are also refcounted. They're all needed across the entire DFS mount. Get rid of @tcon->dfs_ses_list while we're at it, too.",
    "evidence": "osv:CVE-2024-35869",
    "products": [
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        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "value": "6.6.29",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.8.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "CVE-2024-35869",
      "aliases": [
        "CVE-2024-35869"
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      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
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              "type": "ECOSYSTEM",
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                  "introduced": "6.4.0"
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          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-35869.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.683525651Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/062a7f0ff46eb57aff526897bd2bebfdb1d3046a",
        "https://git.kernel.org/stable/c/645f332c6b63499cc76197f9b6bffcc659ba64cc",
        "https://git.kernel.org/stable/c/e1db9ae87b7148c021daee1fcc4bc71b2ac58a79",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/35xxx/CVE-2024-35869.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-35869",
        "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/2024/35xxx/CVE-2024-35869.json"
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    "related_cves": [
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        "value": "CVE-2024-35869",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492211,
  "published_at": "2024-05-19T08:34:27.645+00:00"
}