nvd-json-data-feeds/CVE-2024/CVE-2024-449xx/CVE-2024-44949.json

{
  "id": "CVE-2024-44949",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-09-04T19:15:30.040",
  "lastModified": "2025-01-24T16:15:36.763",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nparisc: fix a possible DMA corruption\n\nARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be\npossible that two unrelated 16-byte allocations share a cache line. If\none of these allocations is written using DMA and the other is written\nusing cached write, the value that was written with DMA may be\ncorrupted.\n\nThis commit changes ARCH_DMA_MINALIGN to be 128 on PA20 and 32 on PA1.1 -\nthat's the largest possible cache line size.\n\nAs different parisc microarchitectures have different cache line size, we\ndefine arch_slab_minalign(), cache_line_size() and\ndma_get_cache_alignment() so that the kernel may tune slab cache\nparameters dynamically, based on the detected cache line size."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: parisc: se corrige una posible corrupci\u00f3n de DMA ARCH_DMA_MINALIGN se defini\u00f3 como 16 - esto es demasiado peque\u00f1o - puede ser posible que dos asignaciones de 16 bytes no relacionadas compartan una l\u00ednea de cach\u00e9. Si una de estas asignaciones se escribe usando DMA y la otra se escribe usando escritura en cach\u00e9, el valor que se escribi\u00f3 con DMA puede estar da\u00f1ado. Esta confirmaci\u00f3n cambia ARCH_DMA_MINALIGN a 128 en PA20 y 32 en PA1.1 - ese es el tama\u00f1o de l\u00ednea de cach\u00e9 m\u00e1s grande posible. Como las diferentes microarquitecturas de parisc tienen diferentes tama\u00f1os de l\u00ednea de cach\u00e9, definimos arch_slab_minalign(), cache_line_size() y dma_get_cache_alignment() para que el kernel pueda ajustar los par\u00e1metros de cach\u00e9 de losa din\u00e1micamente, seg\u00fan el tama\u00f1o de l\u00ednea de cach\u00e9 detectado."
    }
  ],
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
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      "url": "https://git.kernel.org/stable/c/00baca74fb5879e5f9034b6156671301f500f8ee",
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