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CVE-2026-72169

Estado: RecibidaSin puntuar—

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

kho: make sure scratch size is always aligned by CMA_MIN_ALIGNMENT_BYTES

When using scratch_scale, the scratch sizes are rounded up to CMA_MIN_ALIGNMENT_BYTES since they will be released as MIGRATE_CMA. This is not done when using fixed scratch sizes via command line. This can result in user specifying a size which is not aligned, and thus kernel releasing a pageblock that is only partially scratch.

Do the rounding up for both cases in scratch_size_update().

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-2026-72169",
  "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": "3dc92c311498c4d307cfdd0c6c3ac9355b50f683",
              "lessThan": "b8271be34bce151597da5b5179e0648c281322a4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3dc92c311498c4d307cfdd0c6c3ac9355b50f683",
              "lessThan": "9fefab759f59bf891bef7be15aee4bc7caec7ec3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3dc92c311498c4d307cfdd0c6c3ac9355b50f683",
              "lessThan": "0e39380a7316122e1b00012b3f3cd3e318b3e7d3",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "kernel/liveupdate/kexec_handover.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.16",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.18.42",
              "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": [
            "kernel/liveupdate/kexec_handover.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:21:34.993",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0e39380a7316122e1b00012b3f3cd3e318b3e7d3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9fefab759f59bf891bef7be15aee4bc7caec7ec3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b8271be34bce151597da5b5179e0648c281322a4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nkho: make sure scratch size is always aligned by CMA_MIN_ALIGNMENT_BYTES\n\nWhen using scratch_scale, the scratch sizes are rounded up to\nCMA_MIN_ALIGNMENT_BYTES since they will be released as MIGRATE_CMA. This\nis not done when using fixed scratch sizes via command line. This can\nresult in user specifying a size which is not aligned, and thus kernel\nreleasing a pageblock that is only partially scratch.\n\nDo the rounding up for both cases in scratch_size_update()."
    }
  ],
  "lastModified": "2026-08-17T06:18:17.307",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}