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CVE-2026-72180

Estado: RecibidaSin puntuar—

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

mm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD downgrade

change_non_present_huge_pmd() rewrites a writable device-private PMD swap entry into a readable one without carrying pmd_swp_uffd_wp() across. The PTE-level change_softleaf_pte() does this correctly; mirror that here, matching what copy_huge_pmd() does for the fork path. Without the carry, a plain mprotect() over a UFFD_WP-marked device-private THP strips the bit and the trap is bypassed on swap-in.

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)

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{
  "id": "CVE-2026-72180",
  "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": "368076f52ebeecd33e10a9f80905d7508b6b6149",
              "lessThan": "2611f7521c6c124b1bef1be4fc319e0ca144502f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "368076f52ebeecd33e10a9f80905d7508b6b6149",
              "lessThan": "f7e2c21bd1f57cd5350eecdfdb5d6025ca6afbab",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "mm/huge_memory.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.19",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "mm/huge_memory.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:21:36.293",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/2611f7521c6c124b1bef1be4fc319e0ca144502f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f7e2c21bd1f57cd5350eecdfdb5d6025ca6afbab",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD downgrade\n\nchange_non_present_huge_pmd() rewrites a writable device-private PMD swap\nentry into a readable one without carrying pmd_swp_uffd_wp() across.  The\nPTE-level change_softleaf_pte() does this correctly; mirror that here,\nmatching what copy_huge_pmd() does for the fork path.  Without the carry,\na plain mprotect() over a UFFD_WP-marked device-private THP strips the bit\nand the trap is bypassed on swap-in."
    }
  ],
  "lastModified": "2026-08-17T06:18:18.527",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}