nvd-json-data-feeds/CVE-2025/CVE-2025-218xx/CVE-2025-21856.json

{
  "id": "CVE-2025-21856",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-03-12T10:15:18.453",
  "lastModified": "2025-03-13T21:18:08.423",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/ism: add release function for struct device\n\nAccording to device_release() in /drivers/base/core.c,\na device without a release function is a broken device\nand must be fixed.\n\nThe current code directly frees the device after calling device_add()\nwithout waiting for other kernel parts to release their references.\nThus, a reference could still be held to a struct device,\ne.g., by sysfs, leading to potential use-after-free\nissues if a proper release function is not set."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: s390/ism: a\u00f1adir funci\u00f3n de liberaci\u00f3n para struct device. Seg\u00fan device_release() en /drivers/base/core.c, un dispositivo sin funci\u00f3n de liberaci\u00f3n es un dispositivo da\u00f1ado y debe repararse. El c\u00f3digo actual libera el dispositivo directamente tras llamar a device_add() sin esperar a que otras partes del kernel liberen sus referencias. Por lo tanto, una referencia a un dispositivo de estructura podr\u00eda seguir manteni\u00e9ndose, por ejemplo, mediante sysfs, lo que podr\u00eda provocar problemas de uso despu\u00e9s de la liberaci\u00f3n si no se configura una funci\u00f3n de liberaci\u00f3n adecuada."
    }
  ],
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      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
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