Re: [PATCH] wifi: mac80211: fix NULL pointer dereference in ieee80211_mesh_build_beacon()

[Johannes Berg]

On Tue, 2026-01-20 at 00:00 +0900, Jeongjun Park wrote:
> NULL pointer dereference bug occurs because ieee80211_mesh_build_beacon()
> does not check the return value of ieee80211_get_sband().
> 
> Therefore, we need to add a return value check to prevent this.

No we don't, please try to understand the code, and why it can even get
here when the mesh interface isn't operating.

johannes