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ARM: 8749/1: Kconfig: Add ARCH_HAS_FORTIFY_SOURCE

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CONFIG_FORTIFY_SOURCE detects various overflows at compile-time.
(6974f0c455 ("include/linux/string.h:
add the option of fortified string.h functions)

ARCH_HAS_FORTIFY_SOURCE means that the architecture can be built and
run with CONFIG_FORTIFY_SOURCE.

Since ARM can be built and run with that flag like other architectures,
select ARCH_HAS_FORTIFY_SOURCE as default.

Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jinbum Park <jinb.park7@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Jinbum Park 2018-03-06 01:39:24 +01:00 committed by Russell King
parent 7928b2cbe5
commit ee333554fe
2 changed files with 6 additions and 0 deletions
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1
arch/arm/Kconfig
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@ -7,6 +7,7 @@ config ARM
select ARCH_HAS_DEBUG_VIRTUAL if MMU
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ELF_RANDOMIZE
select ARCH_HAS_FORTIFY_SOURCE
select ARCH_HAS_SET_MEMORY
select ARCH_HAS_PHYS_TO_DMA
select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL

5
arch/arm/boot/compressed/misc.c
View File

@ -167,3 +167,8 @@ decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p,
else
putstr(" done, booting the kernel.\n");
}
void fortify_panic(const char *name)
{
error("detected buffer overflow");
}