Kuan-Ying Lee 7a22bdc3c4 kasan: add memory corruption identification support for hardware tag-based mode ... Add memory corruption identification support for hardware tag-based mode. We store one old free pointer tag and free backtrace instead of five because hardware tag-based kasan only has 16 different tags. If we store as many stacks as SW tag-based kasan does(5 stacks), there is high probability to find the same tag in the stacks when out-of-bound issues happened and we will mistake out-of-bound issue for use-after-free. Link: https://lkml.kernel.org/r/20210626100931.22794-4-Kuan-Ying.Lee@mediatek.com Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com> Suggested-by: Marco Elver <elver@google.com> Reviewed-by: Alexander Potapenko <glider@google.com> Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com> Reviewed-by: Marco Elver <elver@google.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Chinwen Chang <chinwen.chang@mediatek.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Nicholas Tang <nicholas.tang@mediatek.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2021-06-29 10:53:53 -07:00
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common.c	kasan: allow architectures to provide an outline readiness check	2021-06-29 10:53:53 -07:00
generic.c	kasan: allow architectures to provide an outline readiness check	2021-06-29 10:53:53 -07:00
hw_tags.c	kasan: integrate the common part of two KASAN tag-based modes	2021-06-29 10:53:53 -07:00
init.c	kasan: use MAX_PTRS_PER_* for early shadow tables	2021-06-29 10:53:53 -07:00
kasan.h	kasan: add memory corruption identification support for hardware tag-based mode	2021-06-29 10:53:53 -07:00
Makefile	kasan: integrate the common part of two KASAN tag-based modes	2021-06-29 10:53:53 -07:00
quarantine.c	mm: fix typos in comments	2021-05-07 00:26:35 -07:00
report_generic.c	mm/kasan: switch from strlcpy to strscpy	2021-04-30 11:20:41 -07:00
report_hw_tags.c	kasan: integrate the common part of two KASAN tag-based modes	2021-06-29 10:53:53 -07:00
report_sw_tags.c	kasan: integrate the common part of two KASAN tag-based modes	2021-06-29 10:53:53 -07:00
report_tags.c	kasan: integrate the common part of two KASAN tag-based modes	2021-06-29 10:53:53 -07:00
report.c	kasan: use dump_stack_lvl(KERN_ERR) to print stacks	2021-06-29 10:53:52 -07:00
shadow.c	kasan: allow architectures to provide an outline readiness check	2021-06-29 10:53:53 -07:00
sw_tags.c	kasan: integrate the common part of two KASAN tag-based modes	2021-06-29 10:53:53 -07:00
tags.c	kasan: integrate the common part of two KASAN tag-based modes	2021-06-29 10:53:53 -07:00