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CVE-2026-72144

Estado: RecibidaAlta (7.8)—

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

platform/x86: dell-laptop: fix missing cleanups in init error path

dell_init() initializes several resources after dell_setup_rfkill(), including the optional touchpad LED, keyboard backlight LED, battery hook, debugfs directory and dell-laptop notifier.

If a later LED or backlight registration fails, the error path only tears down the battery hook and rfkill resources. This leaves the notifier, debugfs directory, keyboard backlight LED and optional touchpad LED registered after dell_init() returns an error.

Add the missing cleanup calls before tearing down rfkill.

CVSS

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).

🎯 Técnicas ATT&CK

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

Acceso local con privilegios (PR:L, AV:L) permite escalada mediante fuga de recursos de kernel. Registros no limpiados en ruta de error pueden llevar a DoS.

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

Threat Intelligence ProgramFilter Network TrafficExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate 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 KernelAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-72144",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "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": "037accfa14b28ecf49d9060063929c4b4cde373f",
              "lessThan": "e4908b3bed755f73870416b971e162a8d0ef0aef",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "037accfa14b28ecf49d9060063929c4b4cde373f",
              "lessThan": "6bd76d5421a72d2526c9be8f01f55bee960f899f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "037accfa14b28ecf49d9060063929c4b4cde373f",
              "lessThan": "1e41ca4a7fba2e680d6950e9511245255fffa46c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "037accfa14b28ecf49d9060063929c4b4cde373f",
              "lessThan": "b351e082711d12f075a36a6cd67709693689315f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "037accfa14b28ecf49d9060063929c4b4cde373f",
              "lessThan": "6e9cab2247e5b243ae2d907ce7c948a8a9c8d61a",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/platform/x86/dell/dell-laptop.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.37"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "2.6.37",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.40",
              "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": [
            "drivers/platform/x86/dell/dell-laptop.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:21:32.067",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1e41ca4a7fba2e680d6950e9511245255fffa46c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6bd76d5421a72d2526c9be8f01f55bee960f899f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6e9cab2247e5b243ae2d907ce7c948a8a9c8d61a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b351e082711d12f075a36a6cd67709693689315f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e4908b3bed755f73870416b971e162a8d0ef0aef",
      "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: dell-laptop: fix missing cleanups in init error path\n\ndell_init() initializes several resources after dell_setup_rfkill(),\nincluding the optional touchpad LED, keyboard backlight LED, battery\nhook, debugfs directory and dell-laptop notifier.\n\nIf a later LED or backlight registration fails, the error path only\ntears down the battery hook and rfkill resources. This leaves the\nnotifier, debugfs directory, keyboard backlight LED and optional\ntouchpad LED registered after dell_init() returns an error.\n\nAdd the missing cleanup calls before tearing down rfkill."
    }
  ],
  "lastModified": "2026-08-17T06:18:14.447",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}