First handset with MTE on the market

By Mark Brand, Google Project Zero Introduction It's finally time for me to fulfill a long-standing promise. Since I first heard about ARM's Memory Tagging Extensions, I've said to far too many people at this point to be able to back out… that I'd immediately switch to the first available device...

MTE As Implemented, Part 3: The Kernel

By Mark Brand, Project Zero Background In 2018, in the v8.5a version of the ARM architecture, ARM proposed a hardware implementation of tagged memory, referred to as MTE Memory Tagging Extensions. In Part 1 we discussed testing the technical and implementation limitations of MTE on the hardware...

PT-2022-35158 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions v5.14 through v6.0.2 Description: The issue is related to the arm64 architecture and Memory Tagging Extensions MTE in the Linux Kernel. It involves avoiding the setting of PG mte tagged if no tags are cleared or restored...