The TAB report on the UMN affair

https://en.m.wikipedia.org/wiki/Greg_Kroah-Hartman

Most people get their kernels from distros who can follow stable or Linus' branch, and often will carry their own patches, and perhaps some other mish-mashed combination of a bunch of things.

So I would tell you just to Google: but that would have prevented me from noticing that Mr. K-H's pic on Wikipedia is him sitting.... in Nuremberg.. coincidence is a funny funny thing.