AFAIK GPLv3 means (among other things) that if a company is slapped with an injunction due to a patent suit, you can't just license the patent for yourself - a

AFAIK GPLv3 means (among other things) that if a company is slapped with an injunction due to a patent suit, you can't just license the patent for yourself - a patent license has to cover all GPLv3 usage. They are allowed, but some of the legal consequences to the new terms in GPLv3 are worth stalling updates, choosing alternative system components and even rewriting components to avoid.