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CVE-2025-37874

Estado: AnalizadaMedia (5.5)—

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

net: ngbe: fix memory leak in ngbe_probe() error path

When ngbe_sw_init() is called, memory is allocated for wx->rss_key in wx_init_rss_key(). However, in ngbe_probe() function, the subsequent error paths after ngbe_sw_init() don't free the rss_key. Fix that by freeing it in error path along with wx->mac_table.

Also change the label to which execution jumps when ngbe_sw_init() fails, because otherwise, it could lead to a double free for rss_key, when the mac_table allocation fails in wx_sw_init().

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)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2025-37874",
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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",
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  "published": "2025-05-09T07:16:08.553",
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          "value": "CWE-401"
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  "descriptions": [
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ngbe: fix memory leak in ngbe_probe() error path\n\nWhen ngbe_sw_init() is called, memory is allocated for wx->rss_key\nin wx_init_rss_key(). However, in ngbe_probe() function, the subsequent\nerror paths after ngbe_sw_init() don't free the rss_key. Fix that by\nfreeing it in error path along with wx->mac_table.\n\nAlso change the label to which execution jumps when ngbe_sw_init()\nfails, because otherwise, it could lead to a double free for rss_key,\nwhen the mac_table allocation fails in wx_sw_init()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: ngbe: corrección de pérdida de memoria en la ruta de error de ngbe_probe() Cuando se llama a ngbe_sw_init(), se asigna memoria para wx->rss_key en wx_init_rss_key(). Sin embargo, en la función ngbe_probe(), las rutas de error posteriores a ngbe_sw_init() no liberan rss_key. Solucione esto liberándolo en la ruta de error junto con wx->mac_table. Cambie también la etiqueta a la que salta la ejecución cuando falla ngbe_sw_init(), porque de lo contrario, podría provocar una doble liberación de rss_key, cuando falla la asignación de mac_table en wx_sw_init()."
    }
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  "lastModified": "2026-06-17T09:15:36.767",
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