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CVE-2026-89438

Estado: RecibidaSin puntuar—

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

platform/x86: ISST: Validate logical CPU id and clos id

Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate MMIO offset.

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-2026-89438",
  "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": "12a7d2cb811dd8a884dea088a2701fcb8d00136e",
              "lessThan": "0d601126c7afda9bb94dfecc8b2c0a16f20d76cb",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "12a7d2cb811dd8a884dea088a2701fcb8d00136e",
              "lessThan": "c9ee2770eb95ba316a56d776b2b66666b70c194b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "12a7d2cb811dd8a884dea088a2701fcb8d00136e",
              "lessThan": "5b032e1dda486ca41d10536bd195bd8a559af1e2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "12a7d2cb811dd8a884dea088a2701fcb8d00136e",
              "lessThan": "82d4afadb02fb4d7d7bb9230900904c10e49ec87",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "12a7d2cb811dd8a884dea088a2701fcb8d00136e",
              "lessThan": "124e2dbabe460c2a6e7440f4ad8af560131295c9",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.4",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-11T20:19:24.087",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0d601126c7afda9bb94dfecc8b2c0a16f20d76cb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/124e2dbabe460c2a6e7440f4ad8af560131295c9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5b032e1dda486ca41d10536bd195bd8a559af1e2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/82d4afadb02fb4d7d7bb9230900904c10e49ec87",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c9ee2770eb95ba316a56d776b2b66666b70c194b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: ISST: Validate logical CPU id and clos id\n\nValidate max CLOS ID and logical CPU ID for core power feature.\nReject any clos level or logical CPU number greater than the\nsupported maximum. These are used to calculate MMIO offset."
    }
  ],
  "lastModified": "2026-09-14T13:19:01.120",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}