linux-stable/mm/kasan
Kuan-Ying Lee 3de0de7580 kasan: separate double free case from invalid free
Currently, KASAN describes all invalid-free/double-free bugs as
"double-free or invalid-free".  This is ambiguous.

KASAN should report "double-free" when a double-free is a more likely
cause (the address points to the start of an object) and report
"invalid-free" otherwise [1].

[1] https://bugzilla.kernel.org/show_bug.cgi?id=212193

Link: https://lkml.kernel.org/r/20220615062219.22618-1-Kuan-Ying.Lee@mediatek.com
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Chinwen Chang <chinwen.chang@mediatek.com>
Cc: Yee Lee <yee.lee@mediatek.com>
Cc: Andrew Yang <andrew.yang@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-17 17:14:33 -07:00
..
common.c kasan: separate double free case from invalid free 2022-07-17 17:14:33 -07:00
generic.c kasan: give better names to shadow values 2022-05-13 07:20:19 -07:00
hw_tags.c kasan: fix zeroing vmalloc memory with HW_TAGS 2022-07-03 18:08:39 -07:00
init.c kasan: use MAX_PTRS_PER_* for early shadow tables 2021-06-29 10:53:53 -07:00
kasan.h kasan: separate double free case from invalid free 2022-07-17 17:14:33 -07:00
Makefile mm/kasan: remove unnecessary CONFIG_KASAN option 2022-03-24 19:06:48 -07:00
quarantine.c kasan: give better names to shadow values 2022-05-13 07:20:19 -07:00
report.c kasan: separate double free case from invalid free 2022-07-17 17:14:33 -07:00
report_generic.c kasan: give better names to shadow values 2022-05-13 07:20:19 -07:00
report_hw_tags.c kasan: simplify kasan_find_first_bad_addr call sites 2022-03-24 19:06:49 -07:00
report_sw_tags.c kasan: simplify kasan_find_first_bad_addr call sites 2022-03-24 19:06:49 -07:00
report_tags.c kasan: rename kasan_access_info to kasan_report_info 2022-03-24 19:06:50 -07:00
shadow.c kasan, vmalloc: only tag normal vmalloc allocations 2022-03-24 19:06:48 -07:00
sw_tags.c kasan: add kasan mode messages when kasan init 2021-11-11 09:34:35 -08:00
tags.c kasan: integrate the common part of two KASAN tag-based modes 2021-06-29 10:53:53 -07:00