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CVE-2025-38536

Estado: ModificadaAlta (7.8)—

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

net: airoha: fix potential use-after-free in airoha_npu_get()

np->name was being used after calling of_node_put(np), which releases the node and can lead to a use-after-free bug. Previously, of_node_put(np) was called unconditionally after of_find_device_by_node(np), which could result in a use-after-free if pdev is NULL.

This patch moves of_node_put(np) after the error check to ensure the node is only released after both the error and success cases are handled appropriately, preventing potential resource issues.

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.

Vulnerabilidad local (AV:L, PR:L) de use-after-free en kernel Linux que permite ejecutar código con privilegios elevados tras liberar memoria de forma prematura, permitiendo al atacante local con acceso ejecutar comandos arbitrarios.

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

Execution PreventionThreat Intelligence ProgramRestrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationBehavior Prevention on Endpoint

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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  "published": "2025-08-16T12:15:29.347",
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          "value": "CWE-416"
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: airoha: fix potential use-after-free in airoha_npu_get()\n\nnp->name was being used after calling of_node_put(np), which\nreleases the node and can lead to a use-after-free bug.\nPreviously, of_node_put(np) was called unconditionally after\nof_find_device_by_node(np), which could result in a use-after-free if\npdev is NULL.\n\nThis patch moves of_node_put(np) after the error check to ensure\nthe node is only released after both the error and success cases\nare handled appropriately, preventing potential resource issues."
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: airoha: se corrige un posible error de use after free en airoha_npu_get(). np->name se usaba después de llamar a of_node_put(np), lo que libera el nodo y puede provocar un error de use after free. Anteriormente, se llamaba a of_node_put(np) incondicionalmente después de of_find_device_by_node(np), lo que podía provocar un error de use after free si pdev era NULL. Este parche traslada of_node_put(np) después de la comprobación de errores para garantizar que el nodo solo se libere después de que tanto el error como los casos de éxito se hayan gestionado correctamente, lo que evita posibles problemas de recursos."
    }
  ],
  "lastModified": "2026-07-30T06:23:24.740",
  "configurations": [
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