{
  "id": "CVE-2024-38553",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-06-19T14:15:15.550",
  "lastModified": "2024-06-20T12:44:01.637",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fec: remove .ndo_poll_controller to avoid deadlocks\n\nThere is a deadlock issue found in sungem driver, please refer to the\ncommit ac0a230f719b (\"eth: sungem: remove .ndo_poll_controller to avoid\ndeadlocks\"). The root cause of the issue is that netpoll is in atomic\ncontext and disable_irq() is called by .ndo_poll_controller interface\nof sungem driver, however, disable_irq() might sleep. After analyzing\nthe implementation of fec_poll_controller(), the fec driver should have\nthe same issue. Due to the fec driver uses NAPI for TX completions, the\n.ndo_poll_controller is unnecessary to be implemented in the fec driver,\nso fec_poll_controller() can be safely removed."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: fec: elimine .ndo_poll_controller para evitar interbloqueos. Se encontr\u00f3 un problema de interbloqueo en el controlador sungem; consulte el commit ac0a230f719b (\"eth: sungem: elimine .ndo_poll_controller para evitar interbloqueos \"). La causa principal del problema es que netpoll est\u00e1 en un contexto at\u00f3mico y la interfaz .ndo_poll_controller del controlador sungem llama a enable_irq(); sin embargo, enable_irq() puede estar inactivo. Despu\u00e9s de analizar la implementaci\u00f3n de fec_poll_controller(), el controlador fec deber\u00eda tener el mismo problema. Debido a que el controlador fec utiliza NAPI para las completaciones de TX, no es necesario implementar .ndo_poll_controller en el controlador fec, por lo que fec_poll_controller() se puede eliminar de forma segura."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/87bcbc9b7e0b43a69d44efa5f32f11e32d08fa6f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/accdd6b912c4219b8e056d1f1ad2e85bc66ee243",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c2e0c58b25a0a0c37ec643255558c5af4450c9f5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d38625f71950e79e254515c5fc585552dad4b33e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}