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authorArnd Bergmann <arnd@arndb.de>2023-10-16 22:08:38 +0200
committerAndrew Morton <akpm@linux-foundation.org>2023-10-18 12:12:41 -0700
commit17c17567fe510857b18fe01b7a88027600e76ac6 (patch)
treea434c444652e694631c4cd96a7710b7bebafb8e4 /arch/alpha
parentbabddbfb7d7d70ae7f10fedd75a45d8ad75fdddf (diff)
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kasan: disable kasan_non_canonical_hook() for HW tags
On arm64, building with CONFIG_KASAN_HW_TAGS now causes a compile-time error: mm/kasan/report.c: In function 'kasan_non_canonical_hook': mm/kasan/report.c:637:20: error: 'KASAN_SHADOW_OFFSET' undeclared (first use in this function) 637 | if (addr < KASAN_SHADOW_OFFSET) | ^~~~~~~~~~~~~~~~~~~ mm/kasan/report.c:637:20: note: each undeclared identifier is reported only once for each function it appears in mm/kasan/report.c:640:77: error: expected expression before ';' token 640 | orig_addr = (addr - KASAN_SHADOW_OFFSET) << KASAN_SHADOW_SCALE_SHIFT; This was caused by removing the dependency on CONFIG_KASAN_INLINE that used to prevent this from happening. Use the more specific dependency on KASAN_SW_TAGS || KASAN_GENERIC to only ignore the function for hwasan mode. Link: https://lkml.kernel.org/r/20231016200925.984439-1-arnd@kernel.org Fixes: 12ec6a919b0f ("kasan: print the original fault addr when access invalid shadow") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Konovalov <andreyknvl@gmail.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Haibo Li <haibo.li@mediatek.com> Cc: Kees Cook <keescook@chromium.org> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/alpha')
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