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port remaining kernel hardening changes to Pixel 2 (XL) #830

Closed thestinger closed 6 years ago

thestinger commented 6 years ago

These changes could come from either the marlin kernel or the more modern linux-hardened code including changes landed upstream, depending on which ones apply more cleanly.

thestinger commented 6 years ago

The real work will start later but it's now at least caught up to the Pixel (XL) with the additional hardening in the 4.4 Android kernel and -fsanitize=local-init thanks to Clang-compiled kernel builds.