CVE-2026-80750

Estado: RecibidaAlta (8.4)—

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

pmdomain: mediatek: fix remaining %pOF after of_node_put()

scpsys_get_bus_protection_legacy() looks up several legacy bus protection regmaps from device-tree nodes.

Two error paths put the device node before checking whether the regmap lookup failed, but still pass that node to dev_err_probe() with %pOF on failure. If of_node_put() drops the last reference, the later %pOF formatting can dereference a freed device node.

Keep the node reference until after the error message has been emitted in the infracfg and SMI lookup paths. Also drop the SMI node before returning when the SMI phandle is missing.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 8.4

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.19%
Percentil entre todas las CVEs puntuadas: 8
Fecha de la puntuación: 6/10/2026

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation75 %
Impacto principalT1498.002 Reflection Amplificationimpact60 %
Impacto secundarioT1499.004 Application or System Exploitationimpact55 %

Acceso local sin interacción en kernel Linux (AV:L, PR:N, UI:N). Use-after-free en device node permite escalada. Impactos: DoS por crash o read de memoria kernel sensible.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Filter Network Traffic Threat Intelligence Program Execution Prevention Application Isolation and Sandboxing Exploit Protection Update Software

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux Kernel^AI

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-80750",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.4,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.5
      }
    ]
  },
  "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": "c29345fa5f66bea0790cf2219f57b974d4fc177b",
              "lessThan": "970b9c83a07c405fdd32bcce7cc4c9e670e58875",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c29345fa5f66bea0790cf2219f57b974d4fc177b",
              "lessThan": "10bf2d7261d7f724ed43a09eea4c90c19c0230a0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c29345fa5f66bea0790cf2219f57b974d4fc177b",
              "lessThan": "3e013bc8b941bd52c8e3a99798d0ae8792cb71ca",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/pmdomain/mediatek/mtk-pm-domains.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.18"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.18",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.18.46",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.10",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/pmdomain/mediatek/mtk-pm-domains.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-03T13:06:14.650",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/10bf2d7261d7f724ed43a09eea4c90c19c0230a0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/3e013bc8b941bd52c8e3a99798d0ae8792cb71ca",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/970b9c83a07c405fdd32bcce7cc4c9e670e58875",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npmdomain: mediatek: fix remaining %pOF after of_node_put()\n\nscpsys_get_bus_protection_legacy() looks up several legacy bus\nprotection regmaps from device-tree nodes.\n\nTwo error paths put the device node before checking whether the regmap\nlookup failed, but still pass that node to dev_err_probe() with %pOF on\nfailure. If of_node_put() drops the last reference, the later %pOF\nformatting can dereference a freed device node.\n\nKeep the node reference until after the error message has been emitted in\nthe infracfg and SMI lookup paths. Also drop the SMI node before\nreturning when the SMI phandle is missing."
    }
  ],
  "lastModified": "2026-09-04T05:17:14.993",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}