[PATCH] elf: Fix the arm64 MTE ELF segment name and value

[Kees Cook]

On Mon, Apr 25, 2022 at 04:18:33PM +0100, Catalin Marinas wrote:
> Unfortunately, the name/value choice for the MTE ELF segment type
> (PT_ARM_MEMTAG_MTE) was pretty poor: LOPROC+1 is already in use by
> PT_AARCH64_UNWIND, as defined in the AArch64 ELF ABI
> (https://github.com/ARM-software/abi-aa/blob/main/aaelf64/aaelf64.rst).
> 
> Update the ELF segment type value to LOPROC+2 and also change the define
> to PT_AARCH64_MEMTAG_MTE to match the AArch64 ELF ABI namespace. The
> AArch64 ELF ABI document is updating accordingly (segment type not
> previously mentioned in the document).
> 
> Signed-off-by: Catalin Marinas <catalin.marinas at arm.com>

Reviewed-by: Kees Cook <keescook at chromium.org>

-- 
Kees Cook