« Volver al listado

CVE-2026-89626

Estado: RecibidaAlta (8.8)—

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

HID: sensor: custom: Fix field sysfs group cleanup on failure

hid_sensor_custom_add_attributes() creates one sysfs group for each custom sensor field. If sysfs_create_group() fails after some groups have already been created, the function returns the error without removing the previously created groups.

Add a local unwind path to remove the groups that were already created. With enable_sensor exposed only after the field attributes are ready, this path can free sensor_inst->fields without leaving enable_sensor able to access pointers into that array.

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.

AV:A requiere acceso adyacente (T1210). El fallo en limpieza de sysfs al crear grupos permite DoS (derrumbe de memoria/recursos) o corrupción de estructura de datos en kernel. Confianza moderada: el texto no describe explotación directa, solo el defecto.

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

Vulnerability ScanningThreat Intelligence ProgramRestrict File and Directory PermissionsPrivileged Account ManagementRemote Data StorageNetwork Segmentation

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-2026-89626",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:A/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": 2.8
      }
    ]
  },
  "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": "4a7de0519df5e8fb89cef6ee062330ffe4b50a4d",
              "lessThan": "416194933af63bd58d03b7605b1ebc1711186838",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4a7de0519df5e8fb89cef6ee062330ffe4b50a4d",
              "lessThan": "d0e15091e88d18e30b67daf85b88f6528bb9bf41",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4a7de0519df5e8fb89cef6ee062330ffe4b50a4d",
              "lessThan": "10b05fafff932e325896d59dde40938954ab4577",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4a7de0519df5e8fb89cef6ee062330ffe4b50a4d",
              "lessThan": "2409779f3096fcef41bcf57b5f4887d0fa0dc8dd",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4a7de0519df5e8fb89cef6ee062330ffe4b50a4d",
              "lessThan": "79154fad98ee843e5363940841e2d831503c190a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4a7de0519df5e8fb89cef6ee062330ffe4b50a4d",
              "lessThan": "f3f37b937a6ea2a00fb5e6189e74f855caa43eb5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4a7de0519df5e8fb89cef6ee062330ffe4b50a4d",
              "lessThan": "d96f8958d4469ac02d9c563686cdd968005b944d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4a7de0519df5e8fb89cef6ee062330ffe4b50a4d",
              "lessThan": "3789d0802ddb4b3be04062caf4bfadd23496e9a7",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/hid/hid-sensor-custom.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.1"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "4.1",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "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/hid/hid-sensor-custom.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-11T20:19:48.023",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/10b05fafff932e325896d59dde40938954ab4577",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2409779f3096fcef41bcf57b5f4887d0fa0dc8dd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/3789d0802ddb4b3be04062caf4bfadd23496e9a7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/416194933af63bd58d03b7605b1ebc1711186838",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/79154fad98ee843e5363940841e2d831503c190a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d0e15091e88d18e30b67daf85b88f6528bb9bf41",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d96f8958d4469ac02d9c563686cdd968005b944d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f3f37b937a6ea2a00fb5e6189e74f855caa43eb5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: sensor: custom: Fix field sysfs group cleanup on failure\n\nhid_sensor_custom_add_attributes() creates one sysfs group for each\ncustom sensor field. If sysfs_create_group() fails after some groups\nhave already been created, the function returns the error without\nremoving the previously created groups.\n\nAdd a local unwind path to remove the groups that were already created.\nWith enable_sensor exposed only after the field attributes are ready,\nthis path can free sensor_inst->fields without leaving enable_sensor\nable to access pointers into that array."
    }
  ],
  "lastModified": "2026-09-14T13:19:16.210",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}