This was recently pointed out to me:
http://www.vtnews.vt.edu/story.php?relyear=2006&itemno=660
I’d be curious if someone from the VT team would like to comment on
the ways SDR code is different from protocol code in terms of
vulnerabilities. I can certainly see the ability to jam at lower
layers. Or is this work like TCPA in enabling some third party to
prevent SDR hardware to run unauthorize code? If so, that probably
won’t end up in GNU Radio 