@ManyRoads It affects all kernels back to at least 4.10, released in 2017. Hard to say if anyone else ever found it, but it's just the whole manner in which this was announced that is really annoying a lot of people. Zero of the major distros like Redhat or Debian received any notice about it, so people are pissed. And I don't think it's actually patched yet. There are mitigations in place that disable crypto features which relied on this mod, but I haven't seen any new kernels yet.