Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2025-39973

Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
15/10/2025
Última modificación:
16/10/2025

Descripción

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> i40e: add validation for ring_len param<br /> <br /> The `ring_len` parameter provided by the virtual function (VF)<br /> is assigned directly to the hardware memory context (HMC) without<br /> any validation.<br /> <br /> To address this, introduce an upper boundary check for both Tx and Rx<br /> queue lengths. The maximum number of descriptors supported by the<br /> hardware is 8k-32.<br /> Additionally, enforce alignment constraints: Tx rings must be a multiple<br /> of 8, and Rx rings must be a multiple of 32.

Impacto