« Volver al listado

CVE-2026-93085

Estado: RecibidaSin puntuar—

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

firmware: arm_scmi: Reject out of range DT protocol IDs

SCMI protocol IDs carried in message headers are limited by MSG_PROTOCOL_ID_MASK. The DT parsing paths noticed protocol IDs outside that range, but only logged an error and then kept processing the invalid value.

That lets a malformed 32-bit DT reg value reach helpers which take a u8 protocol ID, where it can be truncated and/or treated as a different protocol.

For channel setup, two different out-of-range values can also be used as distinct IDR keys while aliasing the generated SCMI protocol identity.

Leer descripción completaMostrar menos

Skip DT protocol nodes whose reg value does not fit the SCMI protocol ID field before setting up channels or creating protocol devices.

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-2026-93085",
  "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": "05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1",
              "lessThan": "8eb2ab209570526728b35e39c4aecdb5099fbaf7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1",
              "lessThan": "5142fd31bd8c9aff9bad4f6e0cc20e9574f2cee1",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1",
              "lessThan": "e66756313d1b4eadd13f39a0aee9fc8773d4d375",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1",
              "lessThan": "0b6e59eb885f985a5ea7beed385adfa9412b324d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1",
              "lessThan": "59407ccb52130f2c81f4b3cbe4f14114afceb54f",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/firmware/arm_scmi/driver.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.3",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/firmware/arm_scmi/driver.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:18:02.590",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0b6e59eb885f985a5ea7beed385adfa9412b324d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5142fd31bd8c9aff9bad4f6e0cc20e9574f2cee1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/59407ccb52130f2c81f4b3cbe4f14114afceb54f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8eb2ab209570526728b35e39c4aecdb5099fbaf7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e66756313d1b4eadd13f39a0aee9fc8773d4d375",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Reject out of range DT protocol IDs\n\nSCMI protocol IDs carried in message headers are limited by\nMSG_PROTOCOL_ID_MASK. The DT parsing paths noticed protocol IDs\noutside that range, but only logged an error and then kept processing\nthe invalid value.\n\nThat lets a malformed 32-bit DT reg value reach helpers which take a u8\nprotocol ID, where it can be truncated and/or treated as a different\nprotocol.\n\nFor channel setup, two different out-of-range values can also be used as\ndistinct IDR keys while aliasing the generated SCMI protocol identity.\n\nSkip DT protocol nodes whose reg value does not fit the SCMI protocol ID\nfield before setting up channels or creating protocol devices."
    }
  ],
  "lastModified": "2026-09-17T17:18:02.590",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}