If I am understanding how tags work correctly (which I may not be), based on the GitHub mirror, the patch is not in any stable release yet. It is part of the 7.2-rc7 tag (rc likely meaning “release candidate”) which was only made 2 days ago. Based on that, I’d expect the patch to be in the stable release of 7.2. Source: Merge tag 'x86_bugs_saferet' of git://git.kernel.org/pub/scm/linux/ke… · torvalds/linux@f5fdd66 · GitHub