CVE-2025-40224

{
  "id": "CVE-2025-40224",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-12-04T16:16:14.917",
  "lastModified": "2026-10-19T19:10:00.130",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (cgbc-hwmon) Add missing NULL check after devm_kzalloc()\n\nThe driver allocates memory for sensor data using devm_kzalloc(), but\ndid not check if the allocation succeeded. In case of memory allocation\nfailure, dereferencing the NULL pointer would lead to a kernel crash.\n\nAdd a NULL pointer check and return -ENOMEM to handle allocation failure\nproperly."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nhwmon: (cgbc-hwmon) Añadir la comprobación de NULL faltante después de devm_kzalloc()\n\nEl controlador asigna memoria para datos de sensor usando devm_kzalloc(), pero no comprobó si la asignación tuvo éxito. En caso de fallo en la asignación de memoria, desreferenciar el puntero NULL llevaría a una caída del kernel.\n\nAñadir una comprobación de puntero NULL y devolver -ENOMEM para manejar el fallo de asignación correctamente."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/hwmon/cgbc-hwmon.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "08ebc9def79fc0c4dbb6ecc39263006e3f98b750",
              "lessThan": "240b82b86a091c1aa49d951d4467425420a081a0",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "08ebc9def79fc0c4dbb6ecc39263006e3f98b750",
              "lessThan": "a09a5aa8bf258ddc99a22c30f17fe304b96b5350",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/hwmon/cgbc-hwmon.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.15",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.15",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.17.6",
              "lessThanOrEqual": "6.17.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/240b82b86a091c1aa49d951d4467425420a081a0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a09a5aa8bf258ddc99a22c30f17fe304b96b5350",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}