{
  "id": "CVE-2025-21836",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-03-07T09:15:16.600",
  "lastModified": "2025-03-07T09:15:16.600",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/kbuf: reallocate buf lists on upgrade\n\nIORING_REGISTER_PBUF_RING can reuse an old struct io_buffer_list if it\nwas created for legacy selected buffer and has been emptied. It violates\nthe requirement that most of the field should stay stable after publish.\nAlways reallocate it instead."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: io_uring/kbuf: reasignar listas de b\u00faferes en la actualizaci\u00f3n IORING_REGISTER_PBUF_RING puede reutilizar una estructura io_buffer_list antigua si se cre\u00f3 para un b\u00fafer seleccionado heredado y se vaci\u00f3. Viola el requisito de que la mayor parte del campo debe permanecer estable despu\u00e9s de la publicaci\u00f3n. Siempre reasignarlo en su lugar."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/146a185f6c05ee263db715f860620606303c4633",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2a5febbef40ce968e295a7aeaa5d5cbd9e3e5ad4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7d0dc28dae836caf7645fef62a10befc624dd17b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8802766324e1f5d414a81ac43365c20142e85603",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}