CVE-2025-21828: 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: wifi: mac80211: don't flush non-uploaded STAs If STA state is pre-moved to AUTHORIZED (such as in IBSS scenarios) and insertion fails, the station is freed. In this case, the driver never knew about the station, so trying to flush it is unexpected and may crash. Check if the sta was uploaded to the driver before and fix this.

Affected products

• Linux Linux Kernel: from 6.4, before 6.6.76 (fixed in 6.6.76); from 6.7, before 6.12.13 (fixed in 6.12.13); from 6.13, before 6.13.2 (fixed in 6.13.2)

Published 2025-03-06. Last modified 2026-07-30.