Re: [PATCH v8 1/5] mm: untag user pointers in mmap/munmap/mremap/brk

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On Thu, Aug 15, 2019 at 04:43:59PM +0100, Catalin Marinas wrote:
> There isn't a good reason to differentiate between the user address
> space layout modification syscalls and the other memory
> permission/attributes ones (e.g. mprotect, madvise) w.r.t. the tagged
> address ABI. Untag the user addresses on entry to these functions.
> 
> Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx>
> ---
>  mm/mmap.c   | 5 +++++
>  mm/mremap.c | 6 +-----
>  2 files changed, 6 insertions(+), 5 deletions(-)

Acked-by: Will Deacon <will@xxxxxxxxxx>

Andrew -- please can you pick this patch up? I'll take the rest of the
series via arm64 once we've finished discussing the wording details.

Thanks,

Will



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