ghsa-q86w-66m5-qpj3
Vulnerability from github
Published
2025-04-01 18:30
Modified
2025-11-03 21:33
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: fix bug on trap in smb2_lock

If lock count is greater than 1, flags could be old value. It should be checked with flags of smb_lock, not flags. It will cause bug-on trap from locks_free_lock in error handling routine.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21944"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-01T16:15:25Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix bug on trap in smb2_lock\n\nIf lock count is greater than 1, flags could be old value.\nIt should be checked with flags of smb_lock, not flags.\nIt will cause bug-on trap from locks_free_lock in error handling\nroutine.",
  "id": "GHSA-q86w-66m5-qpj3",
  "modified": "2025-11-03T21:33:24Z",
  "published": "2025-04-01T18:30:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21944"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/11e0e74e14f1832a95092f2c98ed3b99f57797ee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2b70e3ac79eacbdf32571f7af48dd81cdd957ca8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8994f0ce8259f812b4f4a681d8298c6ff682efaa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dbcd7fdd86f77529210fe8978154a81cd479844c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e26e2d2e15daf1ab33e0135caf2304a0cfa2744b"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
    }
  ],
  "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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