Russian invasion of Ukraine

I thought commercial GPS cut out above a certain speed so it couldn't be adapted for home-brew guided missiles?

There are plenty of uncapped GPS chips about. The restriction is basically voluntary for chip manufacturers with a few regional exceptions. From memory the devices with limits are capped at about 2000kph and 55000ft in altitude.

https://military-history.fandom.com/wiki/CoCom

Edit: I'm basically insinuating that Cocom rules only tends to be followed by manufacturers who want to enjoy the support of the Americans. Don't forget also that GPS is only one system. Not sure if there are speed limits on chips for Glonass, Baidu etc

Ediit 2: Its a bit unclear online so I'm not certain on this but it appears that these restrictions are at the software level in RECEIVERS as opposed to the chips themselves, so if true those limits are fairly meaningless for somebody making their own hardware anyway.