cifs: Fix oops due to uncleared server->smbd_conn in reconnect

{
  "id": "bc4ff217dea24b8ff570814e94c3bad073ed23abc17a11f3a11f695e18455540",
  "url": "https://osv.dev/vulnerability/CVE-2023-53006",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "cifs: Fix oops due to uncleared server->smbd_conn in reconnect",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: cifs: Fix oops due to uncleared server->smbd_conn in reconnect In smbd_destroy(), clear the server->smbd_conn pointer after freeing the smbd_connection struct that it points to so that reconnection doesn't get confused.",
    "evidence": "osv:CVE-2023-53006",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "value": "4.19.272",
            "evidence": "/affected/1/ranges"
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            "value": "5.4.231",
            "evidence": "/affected/1/ranges"
          },
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            "value": "5.10.166",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.91",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.9",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "CVE-2023-53006",
      "aliases": [
        "CVE-2023-53006"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
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              "type": "GIT",
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                  "fixed": "4b83bc6f87eedab4599b0123e572a422689444be"
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53006.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
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                  "introduced": "4.16.0"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53006.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:35.836335308Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/4b83bc6f87eedab4599b0123e572a422689444be",
        "https://git.kernel.org/stable/c/5109607a4ece7cd8536172bf7549eb4dce1f3576",
        "https://git.kernel.org/stable/c/91be54849d5392050f5b847b42bd5e6221551ac8",
        "https://git.kernel.org/stable/c/a9640c0b268405f2540e8203a545e930ea88bb7d",
        "https://git.kernel.org/stable/c/b7ab9161cf5ddc42a288edf9d1a61f3bdffe17c7",
        "https://git.kernel.org/stable/c/e037baee16e0b9ace7e730888fcae9cec11daff2",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53006.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-53006",
        "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/2023/53xxx/CVE-2023-53006.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-53006",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 503141,
  "published_at": "2025-03-27T16:43:37.225+00:00"
}