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CVE-2026-74423

Estado: RecibidaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

accel/amdxdna: Fix leak when pinning ubuf pages

When pin_user_pages_fast() returns fewer pages than requested, the pages that were successfully pinned are not released, leading to a leak.

Fix this by unpinning any partially pinned pages before returning failure.

CVSS

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

Probabilidad de explotación (EPSS)

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

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-74423",
  "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": "bd72d4acda1069579b35123e3cc0b21ec1193a21",
              "lessThan": "68dc52f308a17c3103a349f722dd5dea32c50a88",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bd72d4acda1069579b35123e3cc0b21ec1193a21",
              "lessThan": "5b24e0903c58cdfd8ebfecb6ac5c5bacfd06e4e7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bd72d4acda1069579b35123e3cc0b21ec1193a21",
              "lessThan": "d946347edc4f0a7b846325323d77e936a4c90d0f",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/accel/amdxdna/amdxdna_ubuf.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.18"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.18",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/accel/amdxdna/amdxdna_ubuf.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:22:44.387",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/5b24e0903c58cdfd8ebfecb6ac5c5bacfd06e4e7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/68dc52f308a17c3103a349f722dd5dea32c50a88",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d946347edc4f0a7b846325323d77e936a4c90d0f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Fix leak when pinning ubuf pages\n\nWhen pin_user_pages_fast() returns fewer pages than requested, the pages\nthat were successfully pinned are not released, leading to a leak.\n\nFix this by unpinning any partially pinned pages before returning failure."
    }
  ],
  "lastModified": "2026-08-17T06:19:37.727",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}