fkie_cve-2025-37899
Vulnerability from fkie_nvd
Published
2025-05-20 16:15
Modified
2025-05-24 19:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in session logoff The sess->user object can currently be in use by another thread, for example if another connection has sent a session setup request to bind to the session being free'd. The handler for that connection could be in the smb2_sess_setup function which makes use of sess->user.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/02d16046cd11a5c037b28c12ffb818c56dd3ef43
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2fc9feff45d92a92cd5f96487655d5be23fb7e2b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d5ec1d79509b3ee01de02c236f096bc050221b7f
af854a3a-2127-422b-91ae-364da2661108https://news.ycombinator.com/item?id=44081338
af854a3a-2127-422b-91ae-364da2661108https://sean.heelan.io/2025/05/22/how-i-used-o3-to-find-cve-2025-37899-a-remote-zeroday-vulnerability-in-the-linux-kernels-smb-implementation/
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix use-after-free in session logoff\n\nThe sess-\u003euser object can currently be in use by another thread, for\nexample if another connection has sent a session setup request to\nbind to the session being free\u0027d. The handler for that connection could\nbe in the smb2_sess_setup function which makes use of sess-\u003euser."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ksmbd: correcci\u00f3n del problema \"use-after-free\" al cerrar sesi\u00f3n. El objeto sess-\u0026gt;user puede estar siendo utilizado por otro hilo, por ejemplo, si otra conexi\u00f3n ha enviado una solicitud de configuraci\u00f3n de sesi\u00f3n para enlazarse a la sesi\u00f3n que se est\u00e1 liberando. El controlador de esa conexi\u00f3n podr\u00eda estar en la funci\u00f3n smb2_sess_setup, que utiliza sess-\u0026gt;user."
    }
  ],
  "id": "CVE-2025-37899",
  "lastModified": "2025-05-24T19:15:23.640",
  "metrics": {},
  "published": "2025-05-20T16:15:26.273",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/02d16046cd11a5c037b28c12ffb818c56dd3ef43"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2fc9feff45d92a92cd5f96487655d5be23fb7e2b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d5ec1d79509b3ee01de02c236f096bc050221b7f"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://news.ycombinator.com/item?id=44081338"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://sean.heelan.io/2025/05/22/how-i-used-o3-to-find-cve-2025-37899-a-remote-zeroday-vulnerability-in-the-linux-kernels-smb-implementation/"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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