nvd-json-data-feeds/CVE-2024/CVE-2024-468xx/CVE-2024-46840.json

{
  "id": "CVE-2024-46840",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-09-27T13:15:16.057",
  "lastModified": "2024-10-08T18:15:07.857",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: clean up our handling of refs == 0 in snapshot delete\n\nIn reada we BUG_ON(refs == 0), which could be unkind since we aren't\nholding a lock on the extent leaf and thus could get a transient\nincorrect answer.  In walk_down_proc we also BUG_ON(refs == 0), which\ncould happen if we have extent tree corruption.  Change that to return\n-EUCLEAN.  In do_walk_down() we catch this case and handle it correctly,\nhowever we return -EIO, which -EUCLEAN is a more appropriate error code.\nFinally in walk_up_proc we have the same BUG_ON(refs == 0), so convert\nthat to proper error handling.  Also adjust the error message so we can\nactually do something with the information."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: limpia nuestro manejo de refs == 0 en la eliminaci\u00f3n de instant\u00e1neas En reada tenemos BUG_ON(refs == 0), lo que podr\u00eda ser desagradable ya que no estamos manteniendo un bloqueo en la hoja de extensi\u00f3n y, por lo tanto, podr\u00edamos obtener una respuesta incorrecta transitoria. En walk_down_proc tambi\u00e9n tenemos BUG_ON(refs == 0), lo que podr\u00eda suceder si tenemos corrupci\u00f3n del \u00e1rbol de extensi\u00f3n. Cambia eso para que devuelva -EUCLEAN. En do_walk_down() capturamos este caso y lo manejamos correctamente, sin embargo, devolvemos -EIO, que -EUCLEAN es un c\u00f3digo de error m\u00e1s apropiado. Finalmente, en walk_up_proc tenemos el mismo BUG_ON(refs == 0), as\u00ed que convi\u00e9rtelo en un manejo de errores adecuado. Tambi\u00e9n ajusta el mensaje de error para que podamos hacer algo con la informaci\u00f3n."
    }
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
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