You've hit on a fine point I often make about how the term "security bug" is used. I would call this a bug fix since someone has found what is probably an unin

You've hit on a fine point I often make about how the term "security bug" is used. I would call this a bug fix since someone has found what is probably an unintended behavior in the cubic algorithm. The cubic algorithm itself though would be a feature improving on the original tcp algorithm (nagle, if I remember right)