CVE-2025-21936: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Add check for mgmt_alloc_skb() in mgmt_device_connected() Add check for the return value of mgmt_alloc_skb() in mgmt_device_connected() to prevent null pointer dereference.

Affected products

• Linux Linux Kernel: from 5.17, before 6.1.131 (fixed in 6.1.131); from 6.2, before 6.6.83 (fixed in 6.6.83); from 6.7, before 6.12.19 (fixed in 6.12.19); from 6.13, before 6.13.7 (fixed in 6.13.7); version 6.14 only

Published 2025-04-01. Last modified 2026-06-17.