ksmbd: fix potential use-after-free in oplock/lease break ack

{
  "id": "d14eb6a6fba8a14766974dbbb61dac9ad0092b379c53b020c7c88e08156c02e2",
  "url": "https://osv.dev/vulnerability/CVE-2025-38437",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ksmbd: fix potential use-after-free in oplock/lease break ack",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix potential use-after-free in oplock/lease break ack If ksmbd_iov_pin_rsp return error, use-after-free can happen by accessing opinfo->state and opinfo_put and ksmbd_fd_put could called twice.",
    "evidence": "osv:CVE-2025-38437",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.146",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.99",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.39",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.15.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-38437",
      "aliases": [
        "CVE-2025-38437"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                },
                {
                  "fixed": "e38ec88a2b42c494601b1213816d75f0b54d9bf0"
                },
                {
                  "fixed": "97c355989928a5f60b228ef5266c1be67a46cdf9"
                },
                {
                  "fixed": "815f1161d6dbc4c54ccf94b7d3fdeab34b4d7477"
                },
                {
                  "fixed": "8106adc21a2270c16abf69cd74ccd7c79c6e7acd"
                },
                {
                  "fixed": "50f930db22365738d9387c974416f38a06e8057e"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38437.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.15.0"
                },
                {
                  "fixed": "6.1.146"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.99"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.7.0"
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                {
                  "fixed": "6.12.39"
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            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.15.7"
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              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38437.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.981905392Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/50f930db22365738d9387c974416f38a06e8057e",
        "https://git.kernel.org/stable/c/8106adc21a2270c16abf69cd74ccd7c79c6e7acd",
        "https://git.kernel.org/stable/c/815f1161d6dbc4c54ccf94b7d3fdeab34b4d7477",
        "https://git.kernel.org/stable/c/97c355989928a5f60b228ef5266c1be67a46cdf9",
        "https://git.kernel.org/stable/c/e38ec88a2b42c494601b1213816d75f0b54d9bf0",
        "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38437.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-38437",
        "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/2025/38xxx/CVE-2025-38437.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-38437",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 505035,
  "published_at": "2025-07-25T15:27:16.995+00:00"
}