{
  "id": "CVE-2024-26912",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-04-17T16:15:07.990",
  "lastModified": "2024-04-29T19:20:57.410",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau: fix several DMA buffer leaks\n\nNouveau manages GSP-RM DMA buffers with nvkm_gsp_mem objects.  Several of\nthese buffers are never dealloced.  Some of them can be deallocated\nright after GSP-RM is initialized, but the rest need to stay until the\ndriver unloads.\n\nAlso futher bullet-proof these objects by poisoning the buffer and\nclearing the nvkm_gsp_mem object when it is deallocated.  Poisoning\nthe buffer should trigger an error (or crash) from GSP-RM if it tries\nto access the buffer after we've deallocated it, because we were wrong\nabout when it is safe to deallocate.\n\nFinally, change the mem->size field to a size_t because that's the same\ntype that dma_alloc_coherent expects."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/nouveau: corrige varias fugas del b\u00fafer DMA Nouveau administra los buffers DMA GSP-RM con objetos nvkm_gsp_mem. Varios de estos b\u00faferes nunca se desasignan. Algunos de ellos se pueden desasignar inmediatamente despu\u00e9s de que se inicializa GSP-RM, pero el resto debe permanecer hasta que se descargue el controlador. Tambi\u00e9n proteja a\u00fan m\u00e1s estos objetos envenenando el b\u00fafer y limpiando el objeto nvkm_gsp_mem cuando se desasigna. El envenenamiento del b\u00fafer deber\u00eda provocar un error (o bloqueo) de GSP-RM si intenta acceder al b\u00fafer despu\u00e9s de haberlo desasignado, porque nos equivocamos acerca de cu\u00e1ndo es seguro desasignarlo. Finalmente, cambie el campo mem->size a size_t porque es el mismo tipo que espera dma_alloc_coherent."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "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
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartExcluding": "6.7.0",
              "versionEndExcluding": "6.7.6",
              "matchCriteriaId": "ABAABB52-E12B-4FA5-9F6F-94F0E111832F"
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  "references": [
    {
      "url": "https://git.kernel.org/stable/c/042b5f83841fbf7ce39474412db3b5e4765a7ea7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/6190d4c08897d748dd25f0b78267a90aa1694e15",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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}