{
  "id": "CVE-2024-27007",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-05-01T06:15:19.180",
  "lastModified": "2024-05-13T08:15:11.790",
  "vulnStatus": "Awaiting Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nuserfaultfd: change src_folio after ensuring it's unpinned in UFFDIO_MOVE\n\nCommit d7a08838ab74 (\"mm: userfaultfd: fix unexpected change to src_folio\nwhen UFFDIO_MOVE fails\") moved the src_folio->{mapping, index} changing to\nafter clearing the page-table and ensuring that it's not pinned.  This\navoids failure of swapout+migration and possibly memory corruption.\n\nHowever, the commit missed fixing it in the huge-page case."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: userfaultfd: cambie src_folio despu\u00e9s de asegurarse de que no est\u00e9 fijado en UFFDIO_MOVE Commit d7a08838ab74 (\"mm: userfaultfd: corrija el cambio inesperado en src_folio cuando UFFDIO_MOVE falla\") movi\u00f3 src_folio->{mapping, index} cambiando a despu\u00e9s de borrar la tabla de p\u00e1ginas y asegurarse de que no est\u00e9 fijada. Esto evita fallos en el intercambio+migraci\u00f3n y posiblemente da\u00f1os en la memoria. Sin embargo, la confirmaci\u00f3n no solucion\u00f3 el problema en el caso de la p\u00e1gina enorme."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/c0205eaf3af9f5db14d4b5ee4abacf4a583c3c50",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/df5f6e683e7f21a15d8be6e7a0c7a46436963ebe",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}