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CVE-2026-80874

Estado: RecibidaSin puntuar—

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

arm64: dts: renesas: ironhide: Describe inline ECC carveouts

The DBSC5 DRAM controller protects DRAM content using inline ECC. The inline ECC utilizes areas of DRAM for its operation, which are in the DRAM address range, but must not be accessed or modified. Describe the inline ECC carveout areas used by the DBSC5 controller on this hardware as reserved-memory, which must not be accessed. Include DRAM areas which are unprotected by ECC as well, those are parts of the DRAM which directly precede the ECC carveout.

In case of high DRAM utilization, unless the inline ECC carveouts are properly reserved, Linux may use and corrupt the memory used by the DBSC5 DRAM controller for inline ECC, which would lead to the system becoming unstable.

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-2026-80874",
  "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": "ad142a4ef7106326bbf5c67eb39f21ef77fe8be3",
              "lessThan": "7cc51bb053f6b4bb17db4e10afcef3147566cb47",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ad142a4ef7106326bbf5c67eb39f21ef77fe8be3",
              "lessThan": "6fa6ee724d8dadf392139e242ac936b5da730c4b",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "arch/arm64/boot/dts/renesas/r8a78000-ironhide.dts"
          ],
          "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": [
            "arch/arm64/boot/dts/renesas/r8a78000-ironhide.dts"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-04T17:16:59.390",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/6fa6ee724d8dadf392139e242ac936b5da730c4b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7cc51bb053f6b4bb17db4e10afcef3147566cb47",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64: dts: renesas: ironhide: Describe inline ECC carveouts\n\nThe DBSC5 DRAM controller protects DRAM content using inline ECC.\nThe inline ECC utilizes areas of DRAM for its operation, which are\nin the DRAM address range, but must not be accessed or modified.\nDescribe the inline ECC carveout areas used by the DBSC5 controller\non this hardware as reserved-memory, which must not be accessed.\nInclude DRAM areas which are unprotected by ECC as well, those are\nparts of the DRAM which directly precede the ECC carveout.\n\nIn case of high DRAM utilization, unless the inline ECC carveouts\nare properly reserved, Linux may use and corrupt the memory used\nby the DBSC5 DRAM controller for inline ECC, which would lead to\nthe system becoming unstable."
    }
  ],
  "lastModified": "2026-09-04T17:16:59.390",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}