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CVE-2026-89619

Estado: RecibidaAlta (7.8)—

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

HID: intel-thc-hid: intel-quickspi: bound GET_REPORT response to the caller buffer

quickspi_hid_raw_request() receives the caller's buffer length in len, but quickspi_get_report() never sees it and copies the whole device-supplied response into buf regardless:

qsdev->report_len comes from the input report the touch controller returns, while buf is sized to whatever the caller asked hidraw for through HIDIOCGFEATURE or HIDIOCGINPUT. A response larger than that overflows buf with device-controlled content.

The intel-quicki2c sibling already passes the caller length down to quicki2c_get_report() and validates the response against it before the copy. Do the same here.

Detalles técnicos trazas, registros y código del informe original
    memcpy(buf, qsdev->report_buf, qsdev->report_len);

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.

Vulnerabilidad de buffer overflow local (AV:L, PR:L) en driver HID del kernel Linux que permite a un proceso con privilegios de usuario escalar mediante corrupción de memoria; el controlador de dispositivo retorna datos sin validar el tamaño del búfer del llamador.

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 ProgramPrivileged Account ManagementFilter Network TrafficExecution PreventionBehavior Prevention on EndpointApplication Isolation and Sandboxing

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-2026-89619",
  "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": "4138f21115aec3ebae7805ec3407c72d93558023",
              "lessThan": "72706b44b665679d7d60a488d8776a911f1a93f3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4138f21115aec3ebae7805ec3407c72d93558023",
              "lessThan": "54e0bafc0653bdf2a6c5f5f8ad8787a820d98663",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4138f21115aec3ebae7805ec3407c72d93558023",
              "lessThan": "035ec4a71cb8020a927c123bbe75c2f88d614986",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/hid/intel-thc-hid/intel-quickspi/quickspi-hid.c",
            "drivers/hid/intel-thc-hid/intel-quickspi/quickspi-protocol.c",
            "drivers/hid/intel-thc-hid/intel-quickspi/quickspi-protocol.h"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.14",
              "versionType": "semver"
            },
            {
              "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/hid/intel-thc-hid/intel-quickspi/quickspi-hid.c",
            "drivers/hid/intel-thc-hid/intel-quickspi/quickspi-protocol.c",
            "drivers/hid/intel-thc-hid/intel-quickspi/quickspi-protocol.h"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-11T20:19:47.163",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/035ec4a71cb8020a927c123bbe75c2f88d614986",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/54e0bafc0653bdf2a6c5f5f8ad8787a820d98663",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/72706b44b665679d7d60a488d8776a911f1a93f3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: intel-thc-hid: intel-quickspi: bound GET_REPORT response to the caller buffer\n\nquickspi_hid_raw_request() receives the caller's buffer length in len, but\nquickspi_get_report() never sees it and copies the whole device-supplied\nresponse into buf regardless:\n\n    memcpy(buf, qsdev->report_buf, qsdev->report_len);\n\nqsdev->report_len comes from the input report the touch controller returns,\nwhile buf is sized to whatever the caller asked hidraw for through\nHIDIOCGFEATURE or HIDIOCGINPUT.  A response larger than that overflows buf\nwith device-controlled content.\n\nThe intel-quicki2c sibling already passes the caller length down to\nquicki2c_get_report() and validates the response against it before the\ncopy.  Do the same here."
    }
  ],
  "lastModified": "2026-09-13T07:17:27.437",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}