Ah... I still remember when they were adamant that VAC would never issue any false positives, even in the face of so many clear false positives reports due to a bug in one of the COD games.
To be fair, it seems that AMD is intercepting, modifying, and injecting code. That's not a false positive, that VAC working as intended.
What's wild is that AMD didn't have a conversation with Valve before releasing this. You can't go messing with someone else's code, particularly in such a highly competitive game, and not expect to screw some things up for players.