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CVE-2025-71145

Estado: ModificadaAlta (7.8)—

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

usb: phy: isp1301: fix non-OF device reference imbalance

A recent change fixing a device reference leak in a UDC driver introduced a potential use-after-free in the non-OF case as the isp1301_get_client() helper only increases the reference count for the returned I2C device in the OF case.

Increment the reference count also for non-OF so that the caller can decrement it unconditionally.

Note that this is inherently racy just as using the returned I2C device is since nothing is preventing the PHY driver from being unbound while in use.

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) que causa use-after-free en el kernel Linux; permite DoS o ejecución de código con privilegios elevados tras acceso local.

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

Threat Intelligence ProgramFilter Network TrafficExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate Software

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: phy: isp1301: fix non-OF device reference imbalance\n\nA recent change fixing a device reference leak in a UDC driver\nintroduced a potential use-after-free in the non-OF case as the\nisp1301_get_client() helper only increases the reference count for the\nreturned I2C device in the OF case.\n\nIncrement the reference count also for non-OF so that the caller can\ndecrement it unconditionally.\n\nNote that this is inherently racy just as using the returned I2C device\nis since nothing is preventing the PHY driver from being unbound while\nin use."
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      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nusb: phy: isp1301: corregir desequilibrio de referencia de dispositivo no-OF\n\nUn cambio reciente que corregía una fuga de referencia de dispositivo en un controlador UDC introdujo un potencial uso después de liberación en el caso no-OF, ya que la función auxiliar isp1301_get_client() solo incrementa el contador de referencias para el dispositivo I2C devuelto en el caso OF.\n\nIncrementar el contador de referencias también para no-OF para que el llamador pueda decrementarlo incondicionalmente.\n\nTenga en cuenta que esto es inherentemente propenso a condiciones de carrera, al igual que lo es usar el dispositivo I2C devuelto, ya que nada impide que el controlador PHY sea desvinculado mientras está en uso."
    }
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  "lastModified": "2026-07-30T06:24:54.403",
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