I have a relatively new installation of Ubuntu, and I am still in the process of setting things up / configuring (and also learning of course).
Recently I have done something — nothing dodgy, just following the pattern of satisfying an absolutely legit end-user need — and then I got the impression: "Hmm, what I have done might have a security implication."
In such a case, is there a way to contact Linux (probably kernel?) developers to safely submit a security-related idea / hunch / observation? If yes, how it's done?