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| author | Marco Elver <elver@google.com> | 2021-09-24 15:43:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-09-24 16:13:34 -0700 |
| commit | fa360beac4b62d54879a88b182afef4b369c9700 (patch) | |
| tree | 7169985cf389c41efb1af9b9e26063877e3d3ae2 | |
| parent | acfa299a4a63a58e5e81a87cb16798f20d35f7d7 (diff) | |
| download | linux-fa360beac4b62d54879a88b182afef4b369c9700.tar.gz linux-fa360beac4b62d54879a88b182afef4b369c9700.tar.bz2 linux-fa360beac4b62d54879a88b182afef4b369c9700.zip | |
kasan: fix Kconfig check of CC_HAS_WORKING_NOSANITIZE_ADDRESS
In the main KASAN config option CC_HAS_WORKING_NOSANITIZE_ADDRESS is
checked for instrumentation-based modes. However, if
HAVE_ARCH_KASAN_HW_TAGS is true all modes may still be selected.
To fix, also make the software modes depend on
CC_HAS_WORKING_NOSANITIZE_ADDRESS.
Link: https://lkml.kernel.org/r/20210910084240.1215803-1-elver@google.com
Fixes: 6a63a63ff1ac ("kasan: introduce CONFIG_KASAN_HW_TAGS")
Signed-off-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Aleksandr Nogikh <nogikh@google.com>
Cc: Taras Madan <tarasmadan@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | lib/Kconfig.kasan | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan index 1e2d10f86011..cdc842d090db 100644 --- a/lib/Kconfig.kasan +++ b/lib/Kconfig.kasan @@ -66,6 +66,7 @@ choice config KASAN_GENERIC bool "Generic mode" depends on HAVE_ARCH_KASAN && CC_HAS_KASAN_GENERIC + depends on CC_HAS_WORKING_NOSANITIZE_ADDRESS select SLUB_DEBUG if SLUB select CONSTRUCTORS help @@ -86,6 +87,7 @@ config KASAN_GENERIC config KASAN_SW_TAGS bool "Software tag-based mode" depends on HAVE_ARCH_KASAN_SW_TAGS && CC_HAS_KASAN_SW_TAGS + depends on CC_HAS_WORKING_NOSANITIZE_ADDRESS select SLUB_DEBUG if SLUB select CONSTRUCTORS help |