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CVE-2026-98606

Estado: RecibidaSin puntuar—
Gravedad—Sin puntuar
Probabilidad de explotación0.21 %mayor que el 10 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado

En el kernel de Linux se ha resuelto la siguiente vulnerabilidad:

drm/virtio: liberar el objeto GEM al producirse errores en virtio_gpu_vram_create()

virtio_gpu_vram_create() libera el objeto con un kfree(vram) directo en ambas rutas de error, tras haber ejecutado drm_gem_private_object_init() y, en la segunda, tras haber vinculado drm_gem_create_mmap_offset() el obj->vma_node al gestor de desplazamientos VMA del dispositivo. El objeto liberado permanece en ese árbol de intervalos, por lo que una búsqueda o inserción posterior recorre memoria liberada, y el dma_resv y el bloqueo de gpuva nunca se destruyen.

Leer descripción completaMostrar menos

Llamar a drm_gem_object_release() antes de kfree() en ambas rutas.

Traducción automática del texto original de NVD (en inglés).

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
0.21 %
Percentil entre todas las CVEs puntuadas
10
Fecha de la puntuación
20/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

Mostrar las 7 referencias

JSON original (NVD)

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{
  "id": "CVE-2026-98606",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "16845c5d540929d2f4dc845f11fbbb238e69170a",
              "lessThan": "977c2934064969503cabf98b1135d202ff62822e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "16845c5d540929d2f4dc845f11fbbb238e69170a",
              "lessThan": "5118b5fdf1eb9922a0cdd2afd25252081e2d4302",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "16845c5d540929d2f4dc845f11fbbb238e69170a",
              "lessThan": "a9bb8f8fd5694185c2f71ff91869afb300aab392",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "16845c5d540929d2f4dc845f11fbbb238e69170a",
              "lessThan": "03bdbf182082694ab2add620d85f1a8b8f51bbbc",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "16845c5d540929d2f4dc845f11fbbb238e69170a",
              "lessThan": "5c2cb3dd1447752b73d4f44d6b7434bc5259bfec",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "16845c5d540929d2f4dc845f11fbbb238e69170a",
              "lessThan": "7c8deb77d05bcc8f79e255f669d82ec6ce91be12",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "16845c5d540929d2f4dc845f11fbbb238e69170a",
              "lessThan": "036d28db1818af2f9d80db771f5405da84d7732d",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/virtio/virtgpu_vram.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.11"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.11",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.55",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.9",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/virtio/virtgpu_vram.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-18T16:17:13.340",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/036d28db1818af2f9d80db771f5405da84d7732d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/03bdbf182082694ab2add620d85f1a8b8f51bbbc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5118b5fdf1eb9922a0cdd2afd25252081e2d4302",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5c2cb3dd1447752b73d4f44d6b7434bc5259bfec",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7c8deb77d05bcc8f79e255f669d82ec6ce91be12",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/977c2934064969503cabf98b1135d202ff62822e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a9bb8f8fd5694185c2f71ff91869afb300aab392",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/virtio: release the GEM object on virtio_gpu_vram_create() errors\n\nvirtio_gpu_vram_create() frees the object with a bare kfree(vram) on\nboth error paths after drm_gem_private_object_init() has run, and on the\nsecond one after drm_gem_create_mmap_offset() has linked obj->vma_node\ninto the device's VMA offset manager. The freed object stays in that\ninterval tree, so a later lookup or insertion walks freed memory, and\nthe dma_resv and gpuva lock are never destroyed.\n\nCall drm_gem_object_release() before kfree() on both paths."
    }
  ],
  "lastModified": "2026-10-19T10:19:22.457",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}