I always wondered if the Security Now podcast name was inspired by Seinfeld's "Serenity Now!"
But anyway this happened:
The full video episode is here:
https://twit.tv/shows/security-now/episodes/980?autostart=false
and the show notes are here:
https://www.grc.com/sn/sn-980-notes.pdf
And just so you know, in the meantime the patch has been pushed out, and the answer is "yes", turning off the Wi-Fi adaptor blocks the attack.
They joke a bit about "why not just turn off the entire computer" but it's a real use case where a laptop is used as a remote access machine and connects over ethernet (at a home, say), but the Wi-Fi is left on because why would you ever turn it off? Well, now you have a reason.