CVE-2025-21828 Information

Description

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.

Reference

https://git.kernel.org/stable/c/9efb5531271fa7ebae993b2a33a705d9947c7ce6 https://git.kernel.org/stable/c/aa3ce3f8fafa0b8fb062f28024855ea8cb3f3450 https://git.kernel.org/stable/c/cd10b7fcb95a6a86c67adc54304c59a578ab16af https://git.kernel.org/stable/c/cf21ef3d430847ba864bbc9b2774fffcc03ce321