one more data point: https://lkml.org/lkml/2013/1/31/593 . notice how Linus differentiates between various bug classes. clearly not everything is security related (let alone equally important) according to him, regardless of whatever else he'd said in the past. so try again with this 'all bugs are security bugs' and send him a few of those irrelevant fixes next time, if nothing else, his reaction to that will teach you the difference in no uncertain terms ;).