diff options
| author |   Linus Walleij <linus.walleij@linaro.org> | 2020-10-25 23:56:18 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@armlinux.org.uk> | 2020-10-27 12:11:11 +0000 |
| commit | 421015713b306e47af95d4d61cdfbd96d462e4cb (patch) | |
| tree | ed0dee2f10bae4185b68064a4a7b2661a0ff2944 | |
| parent | ARM: 9016/2: Initialize the mapping of KASan shadow memory (diff) | |
| download | linux-dev-421015713b306e47af95d4d61cdfbd96d462e4cb.tar.xz linux-dev-421015713b306e47af95d4d61cdfbd96d462e4cb.zip | |
ARM: 9017/2: Enable KASan for ARM
This patch enables the kernel address sanitizer for ARM. XIP_KERNEL
has not been tested and is therefore not allowed for now.
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: kasan-dev@googlegroups.com
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Ard Biesheuvel <ardb@kernel.org> # QEMU/KVM/mach-virt/LPAE/8G
Tested-by: Florian Fainelli <f.fainelli@gmail.com> # Brahma SoCs
Tested-by: Ahmad Fatoum <a.fatoum@pengutronix.de> # i.MX6Q
Signed-off-by: Abbott Liu <liuwenliang@huawei.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| -rw-r--r-- | Documentation/dev-tools/kasan.rst | 4 | ||||
| -rw-r--r-- | Documentation/features/debug/KASAN/arch-support.txt | 2 | ||||
| -rw-r--r-- | arch/arm/Kconfig | 1 |
3 files changed, 4 insertions, 3 deletions
diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst index c09c9ca2ff1c..3edd3946d4c7 100644 --- a/Documentation/dev-tools/kasan.rst +++ b/Documentation/dev-tools/kasan.rst @@ -18,8 +18,8 @@ out-of-bounds accesses for global variables is only supported since Clang 11. Tag-based KASAN is only supported in Clang. -Currently generic KASAN is supported for the x86_64, arm64, xtensa, s390 and -riscv architectures, and tag-based KASAN is supported only for arm64. +Currently generic KASAN is supported for the x86_64, arm, arm64, xtensa, s390 +and riscv architectures, and tag-based KASAN is supported only for arm64. Usage ----- diff --git a/Documentation/features/debug/KASAN/arch-support.txt b/Documentation/features/debug/KASAN/arch-support.txt index c3fe9b266e7b..b2288dc14b72 100644 --- a/Documentation/features/debug/KASAN/arch-support.txt +++ b/Documentation/features/debug/KASAN/arch-support.txt @@ -8,7 +8,7 @@ ----------------------- | alpha: | TODO | | arc: | TODO | - | arm: | TODO | + | arm: | ok | | arm64: | ok | | c6x: | TODO | | csky: | TODO | diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 194032568b7a..2c5eb5c2b310 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -67,6 +67,7 @@ config ARM select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU + select HAVE_ARCH_KASAN if MMU && !XIP_KERNEL select HAVE_ARCH_MMAP_RND_BITS if MMU select HAVE_ARCH_SECCOMP select HAVE_ARCH_SECCOMP_FILTER if AEABI && !OABI_COMPAT |