There is some work in this direction on Linux: https://source.android.com/docs/security/test/hwasan https://source.android.com/docs/security/test/hwasan That s

There is some work in this direction on Linux: https://source.android.com/docs/security/test/hwasan https://source.android.com/docs/security/test/hwasan That site still lists 2x CPU overhead. I am fuzzy on details but I believe some variant is in the works that has low enough overhead to enable in the wild. That site also just says it uses TBI so possibly the performant version I am thinking of is just a version that uses full MTE?