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CVE-2025-38390

Estado: AnalizadaMedia (5.5)—

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

firmware: arm_ffa: Fix memory leak by freeing notifier callback node

Commit e0573444edbf ("firmware: arm_ffa: Add interfaces to request notification callbacks") adds support for notifier callbacks by allocating and inserting a callback node into a hashtable during registration of notifiers. However, during unregistration, the code only removes the node from the hashtable without freeing the associated memory, resulting in a memory leak.

Resolve the memory leak issue by ensuring the allocated notifier callback node is properly freed after it is removed from the hashtable entry.

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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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_ffa: Fix memory leak by freeing notifier callback node\n\nCommit e0573444edbf (\"firmware: arm_ffa: Add interfaces to request\nnotification callbacks\") adds support for notifier callbacks by allocating\nand inserting a callback node into a hashtable during registration of\nnotifiers. However, during unregistration, the code only removes the\nnode from the hashtable without freeing the associated memory, resulting\nin a memory leak.\n\nResolve the memory leak issue by ensuring the allocated notifier callback\nnode is properly freed after it is removed from the hashtable entry."
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: firmware: arm_ffa: Corregir fuga de memoria liberando el nodo de devolución de llamada del notificador. El commit e0573444edbf (\"firmware: arm_ffa: Añadir interfaces para solicitar devoluciones de llamada de notificación\") añade compatibilidad con devoluciones de llamada de notificador mediante la asignación e inserción de un nodo de devolución de llamada en una tabla hash durante el registro de notificadores. Sin embargo, al anular el registro, el código solo elimina el nodo de la tabla hash sin liberar la memoria asociada, lo que provoca una fuga de memoria. Para resolver el problema de fuga de memoria, asegúrese de que el nodo de devolución de llamada del notificador asignado se libere correctamente tras eliminarlo de la entrada de la tabla hash."
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  "lastModified": "2026-06-17T09:16:45.733",
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