fkie_cve-2025-37962
Vulnerability from fkie_nvd
Published
2025-05-20 16:15
Modified
2025-05-21 20:24
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2148d34371b06dac696c0497a98a6bf905a51650
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/829e19ef741d9e9932abdc3bee5466195e0852cf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/af9e2d4732a548db8f6f5a90c2c20a789a3d7240
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eb4447bcce915b43b691123118893fca4f372a8f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/facf22c1a394c1e023dab5daf9a494f722771e1c
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ksmbd: correcci\u00f3n de fuga de memoria en parse_lease_state(). El parche anterior, que a\u00f1ad\u00eda la comprobaci\u00f3n de los l\u00edmites para el contexto de creaci\u00f3n de arrendamiento, introduc\u00eda una fuga de memoria. Cuando la comprobaci\u00f3n de los l\u00edmites falla, la funci\u00f3n devuelve NULL sin liberar la estructura lease_ctx_info previamente asignada. Este parche corrige el problema a\u00f1adiendo kfree(lreq) antes de devolver NULL en ambos casos de comprobaci\u00f3n de los l\u00edmites."
    }
  ],
  "id": "CVE-2025-37962",
  "lastModified": "2025-05-21T20:24:58.133",
  "metrics": {},
  "published": "2025-05-20T16:15:34.473",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2148d34371b06dac696c0497a98a6bf905a51650"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/829e19ef741d9e9932abdc3bee5466195e0852cf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/af9e2d4732a548db8f6f5a90c2c20a789a3d7240"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/eb4447bcce915b43b691123118893fca4f372a8f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/facf22c1a394c1e023dab5daf9a494f722771e1c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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