Bug 215753

Summary:	KASAN (tags): investigate tagging executable vmalloc allocations
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 2022-03-27 14:40:38 UTC

Currently, executable vmalloc allocations are not tagged with the SW/HW_TAGS modes, as the kernel does not tolerate having the PC register tagged.

Investigate, whether it is possible to tag these allocations. Or at least tag the memory without the pointers.