New Linux Patch Series Provides A Fresh Take On Intel Indirect Branch Tracking

Last year with Intel "Tiger Lake" was the introduction of Control-Flow Enforcement Technology (CET) for helping fend off return/jump-oriented attacks and as part of CET is hardware Indirect Branch Tracking (IBT) support. There have been patch series working to implement CET's IBT support but after having gone through 30 rounds of review and not being merged, a new take on it was submitted today...