CVE-2025-21918: 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: usb: typec: ucsi: Fix NULL pointer access Resources should be released only after all threads that utilize them have been destroyed. This commit ensures that resources are not released prematurely by waiting for the associated workqueue to complete before deallocating them.

Affected products

• Linux Linux Kernel: from 5.16, before 6.1.133 (fixed in 6.1.133); 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.