In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't warn when an IBSS has no channel to scan ieee80211_request_ibss_scan() warns when regulatory leaves no allowed channel, but that can happen as the regdomain can change while IBSS is operating, and it can continue to operate briefly during the 60s grace period until it's shut down. Just remove the warning in this case.
https://git.kernel.org/stable/c/bb91c15953705445778c170a2523f12351c4d928
https://git.kernel.org/stable/c/a7491b7efbd9136b120a12ed72af9c12121dd134
https://git.kernel.org/stable/c/5f139e17f5bdba6b68177dd8afe13fa4549dfc5f
https://git.kernel.org/stable/c/23d51c0bc18f21d957756ba4650520bb3bc726b2