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CVE-2022-49836

Estado: AnalizadaMedia (5.5)—

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

siox: fix possible memory leak in siox_device_add()

If device_register() returns error in siox_device_add(), the name allocated by dev_set_name() need be freed. As comment of device_register() says, it should use put_device() to give up the reference in the error path. So fix this by calling put_device(), then the name can be freed in kobject_cleanup(), and sdevice is freed in siox_device_release(), set it to null in error path.

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).

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2022-49836",
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        "source": "nvd@nist.gov",
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          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "exploitabilityScore": 1.8
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  "published": "2025-05-01T15:16:07.087",
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsiox: fix possible memory leak in siox_device_add()\n\nIf device_register() returns error in siox_device_add(),\nthe name allocated by dev_set_name() need be freed. As\ncomment of device_register() says, it should use put_device()\nto give up the reference in the error path. So fix this\nby calling put_device(), then the name can be freed in\nkobject_cleanup(), and sdevice is freed in siox_device_release(),\nset it to null in error path."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: siox: Se corrige una posible fuga de memoria en siox_device_add(). Si device_register() devuelve un error en siox_device_add(), se debe liberar el nombre asignado por dev_set_name(). Como se indica en el comentario de device_register(), se debe usar put_device() para liberar la referencia en la ruta de error. Para solucionar esto, se debe llamar a put_device(); de esta manera, se puede liberar el nombre en kobject_cleanup() y sdevice se libera en siox_device_release(); configúrelo como nulo en la ruta de error."
    }
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  "lastModified": "2026-06-17T05:19:15.610",
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