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CVE-2025-68743

Estado: AplazadaSin puntuar—

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

mshv: Fix create memory region overlap check

The current check is incorrect; it only checks if the beginning or end of a region is within an existing region. This doesn't account for userspace specifying a region that begins before and ends after an existing region.

Change the logic to a range intersection check against gfns and uaddrs for each region.

Remove mshv_partition_region_by_uaddr() as it is no longer used.

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-2025-68743",
  "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": "621191d709b14882270dfd8ea5d7d6cdfebe2c35",
              "lessThan": "2183924dd834e0703f87e17c17e689bcbf55d69d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "621191d709b14882270dfd8ea5d7d6cdfebe2c35",
              "lessThan": "ab3e7a78d83a61d335458cfe2e4d17eba69ae73d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "621191d709b14882270dfd8ea5d7d6cdfebe2c35",
              "lessThan": "ba9eb9b86d232854e983203dc2fb1ba18e316681",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/hv/mshv_root_main.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.15",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.17.13",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.2",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/hv/mshv_root_main.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-24T13:16:29.247",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/2183924dd834e0703f87e17c17e689bcbf55d69d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ab3e7a78d83a61d335458cfe2e4d17eba69ae73d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ba9eb9b86d232854e983203dc2fb1ba18e316681",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmshv: Fix create memory region overlap check\n\nThe current check is incorrect; it only checks if the beginning or end\nof a region is within an existing region. This doesn't account for\nuserspace specifying a region that begins before and ends after an\nexisting region.\n\nChange the logic to a range intersection check against gfns and uaddrs\nfor each region.\n\nRemove mshv_partition_region_by_uaddr() as it is no longer used."
    }
  ],
  "lastModified": "2026-06-17T09:59:30.857",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}