The patch titled
Subject: kasan: fix Kconfig check of CC_HAS_WORKING_NOSANITIZE_ADDRESS
has been added to the -mm tree. Its filename is
kasan-fix-kconfig-check-of-cc_has_working_nosanitize_address.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/kasan-fix-kconfig-check-of-cc_has_working_nosanitize_address.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/kasan-fix-kconfig-check-of-cc_has_working_nosanitize_address.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Marco Elver <elver@xxxxxxxxxx>
Subject: 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@xxxxxxxxxx
Fixes: 6a63a63ff1ac ("kasan: introduce CONFIG_KASAN_HW_TAGS")
Signed-off-by: Marco Elver <elver@xxxxxxxxxx>
Cc: Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Andrey Konovalov <andreyknvl@xxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Aleksandr Nogikh <nogikh@xxxxxxxxxx>
Cc: Taras Madan <tarasmadan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/Kconfig.kasan | 2 ++
1 file changed, 2 insertions(+)
--- a/lib/Kconfig.kasan~kasan-fix-kconfig-check-of-cc_has_working_nosanitize_address
+++ a/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
_
Patches currently in -mm which might be from elver@xxxxxxxxxx are
kasan-fix-kconfig-check-of-cc_has_working_nosanitize_address.patch
