Bug 211779

Summary:	KASAN (hw-tags): support stack tagging
Product:	Memory Management	Reporter:	Andrey Konovalov (andreyknvl)
Component:	Sanitizers	Assignee:	MM/Sanitizers virtual assignee (mm_sanitizers)
Status:	NEW ---
Severity:	normal	CC:	kasan-dev
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	upstream	Subsystem:
Regression:	No	Bisected commit-id:

Description Andrey Konovalov 2021-02-15 18:58:45 UTC

Add HW_TAGS support for tagging and checking stack variables.

Both generic and SW_TAGS KASAN modes already support that.

The implementation of stack tagging support has to work with a single kernel image on devices with and without MTE support. This is demanded by Android Generic Kernel Image.