kasan: fix Kconfig check of CC_HAS_WORKING_NOSANITIZE_ADDRESS
authorMarco Elver <elver@google.com>
Fri, 24 Sep 2021 22:43:23 +0000 (15:43 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 24 Sep 2021 23:13:34 +0000 (16:13 -0700)
commitfa360beac4b62d54879a88b182afef4b369c9700
tree7169985cf389c41efb1af9b9e26063877e3d3ae2
parentacfa299a4a63a58e5e81a87cb16798f20d35f7d7
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>
lib/Kconfig.kasan