{
  "id": "CVE-2024-38629",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-06-21T11:15:11.733",
  "lastModified": "2024-11-21T09:26:31.780",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Avoid unnecessary destruction of file_ida\n\nfile_ida is allocated during cdev open and is freed accordingly\nduring cdev release. This sequence is guaranteed by driver file\noperations. Therefore, there is no need to destroy an already empty\nfile_ida when the WQ cdev is removed.\n\nWorse, ida_free() in cdev release may happen after destruction of\nfile_ida per WQ cdev. This can lead to accessing an id in file_ida\nafter it has been destroyed, resulting in a kernel panic.\n\nRemove ida_destroy(&file_ida) to address these issues."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dmaengine: idxd: evita la destrucci\u00f3n innecesaria de file_ida file_ida se asigna durante la apertura de cdev y se libera en consecuencia durante el lanzamiento de cdev. Esta secuencia est\u00e1 garantizada por las operaciones del archivo del controlador. Por lo tanto, no es necesario destruir un file_ida que ya est\u00e1 vac\u00edo cuando se elimina WQ cdev. Peor a\u00fan, ida_free() en la versi\u00f3n cdev puede ocurrir despu\u00e9s de la destrucci\u00f3n de file_ida seg\u00fan WQ cdev. Esto puede llevar a acceder a una identificaci\u00f3n en file_ida despu\u00e9s de haber sido destruida, lo que resulta en un p\u00e1nico en el kernel. Elimine ida_destroy(&file_ida) para solucionar estos problemas."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/15edb906211bf53e7b5574f7326ab734d6bff4f9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/76e43fa6a456787bad31b8d0daeabda27351a480",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9eb15f24a0b9b017b39cde8b8c07243676b63687",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/15edb906211bf53e7b5574f7326ab734d6bff4f9",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://git.kernel.org/stable/c/76e43fa6a456787bad31b8d0daeabda27351a480",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://git.kernel.org/stable/c/9eb15f24a0b9b017b39cde8b8c07243676b63687",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}