nvd-json-data-feeds/CVE-2024/CVE-2024-410xx/CVE-2024-41055.json

{
  "id": "CVE-2024-41055",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-07-29T15:15:13.620",
  "lastModified": "2024-07-29T16:21:52.517",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: prevent derefencing NULL ptr in pfn_section_valid()\n\nCommit 5ec8e8ea8b77 (\"mm/sparsemem: fix race in accessing\nmemory_section->usage\") changed pfn_section_valid() to add a READ_ONCE()\ncall around \"ms->usage\" to fix a race with section_deactivate() where\nms->usage can be cleared.  The READ_ONCE() call, by itself, is not enough\nto prevent NULL pointer dereference.  We need to check its value before\ndereferencing it."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm: evita la eliminaci\u00f3n de la referencia NULL ptr en pfn_section_valid() La confirmaci\u00f3n 5ec8e8ea8b77 (\"mm/sparsemem: corrige la ejecuci\u00f3n al acceder a la secci\u00f3n_memoria->uso\") cambi\u00f3 pfn_section_valid() para agregar un READ_ONCE() llame a \"ms->usage\" para arreglar una ejecuci\u00f3n con section_deactivate() donde se puede borrar ms->usage. La llamada READ_ONCE(), por s\u00ed sola, no es suficiente para evitar la desreferencia al puntero NULL. Necesitamos comprobar su valor antes de desreferenciarlo."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0100aeb8a12d51950418e685f879cc80cb8e5982",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/797323d1cf92d09b7a017cfec576d9babf99cde7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/82f0b6f041fad768c28b4ad05a683065412c226e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/941e816185661bf2b44b488565d09444ae316509",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/adccdf702b4ea913ded5ff512239e382d7473b63",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bc17f2377818dca643a74499c3f5333500c90503",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}