# \[PATCH 34/35\] kasan, arm64: enable CONFIG\_KASAN\_HW\_TAGS

- From: Andrey Konovalov \<hidden\>
- Date: 2020-08-14 17:29:02 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2020/08/6068778
- Thread: https://ratatoskr.run/linux-arm-kernel/2020/08/6068760/t.md

```text
Hardware tag-based KASAN is now ready, enable the configuration option.

Signed-off-by: Andrey Konovalov <redacted>
---
 arch/arm64/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 70a7880d5145..0d95d8391d0f 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -131,6 +131,7 @@ config ARM64
 	select HAVE_ARCH_JUMP_LABEL_RELATIVE
 	select HAVE_ARCH_KASAN if !(ARM64_16K_PAGES && ARM64_VA_BITS_48)
 	select HAVE_ARCH_KASAN_SW_TAGS if HAVE_ARCH_KASAN
+	select HAVE_ARCH_KASAN_HW_TAGS if (HAVE_ARCH_KASAN && ARM64_MTE)
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_MMAP_RND_BITS
 	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT
-- 
2.28.0.220.ged08abb693-goog


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```