CVE-2021-47091: 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: mac80211: fix locking in ieee80211_start_ap error path We need to hold the local->mtx to release the channel context, as even encoded by the lockdep_assert_held() there. Fix it.

Affected products

• Linux Linux Kernel: from 5.10, before 5.10.89 (fixed in 5.10.89); from 5.11, before 5.15.12 (fixed in 5.15.12); version 5.16 only

Published 2024-03-04. Last modified 2026-06-17.