ghsa-p2c4-6w6j-w378
Vulnerability from github
Published
2025-04-01 18:30
Modified
2025-10-31 18:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: prevent connection release during oplock break notification

ksmbd_work could be freed when after connection release. Increment r_count of ksmbd_conn to indicate that requests are not finished yet and to not release the connection.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21955"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-01T16:15:26Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: prevent connection release during oplock break notification\n\nksmbd_work could be freed when after connection release.\nIncrement r_count of ksmbd_conn to indicate that requests\nare not finished yet and to not release the connection.",
  "id": "GHSA-p2c4-6w6j-w378",
  "modified": "2025-10-31T18:31:11Z",
  "published": "2025-04-01T18:30:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21955"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09aeab68033161cb54f194da93e51a11aee6144b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3aa660c059240e0c795217182cf7df32909dd917"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a4261bbc33fbf99b99c80aa3a2c5097611802980"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f17d1c63a76b0fe8e9c78023a86507a3a6d62cfa"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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