ghsa-pgjf-j2hp-qqxv
Vulnerability from github
Published
2025-05-20 18:30
Modified
2025-05-20 18:30
Details

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

ksmbd: fix memory leak in parse_lease_state()

The previous patch that added bounds check for create lease context introduced a memory leak. When the bounds check fails, the function returns NULL without freeing the previously allocated lease_ctx_info structure.

This patch fixes the issue by adding kfree(lreq) before returning NULL in both boundary check cases.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37962"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-20T16:15:34Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix memory leak in parse_lease_state()\n\nThe previous patch that added bounds check for create lease context\nintroduced a memory leak. When the bounds check fails, the function\nreturns NULL without freeing the previously allocated lease_ctx_info\nstructure.\n\nThis patch fixes the issue by adding kfree(lreq) before returning NULL\nin both boundary check cases.",
  "id": "GHSA-pgjf-j2hp-qqxv",
  "modified": "2025-05-20T18:30:57Z",
  "published": "2025-05-20T18:30:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37962"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2148d34371b06dac696c0497a98a6bf905a51650"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/829e19ef741d9e9932abdc3bee5466195e0852cf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/af9e2d4732a548db8f6f5a90c2c20a789a3d7240"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eb4447bcce915b43b691123118893fca4f372a8f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/facf22c1a394c1e023dab5daf9a494f722771e1c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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