Memory Tagging

In 2021, Android 12 was release, with both its userland memory allocator (scudo) and kernel allocator supporting memory-tagging metadata.

In 2022, Android 13 was released, with support for Armv9’s Memory Tagging Extension (MTE), a hardware implementation of tagged/coloured memory, in userland applications

In May 2023, Keishi Hattori from the Chromium team added MTE support in Chromium, and it’s supported in it since M115.

As of 2023, OpenBSD doesn’t support MTE.