CVE-2025-21901

CVSS 3.1 Score 5.5 of 10 (medium)

Details

Published Apr 1, 2025
Updated: Apr 15, 2025
CWE ID 476

Summary

CVE-2025-21901 is a newly identified vulnerability in the Linux kernel. This issue involves the RDMA/bnxt_re component, whichfailed to properly check the validity of rdev during ulp_irq_stop and ulp_irq_start callbacks. If the device is in a detached state, these callbacks may still be triggered, leading to a NULL pointer dereference and potential crash due to the already freed rdev. This vulnerability has been resolved to prevent such crashes and ensure system stability.

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