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Date: Fri, 29 Nov 2019 12:32:17 -0500
From: Kassad <>
To: Mark Rutland <>
Subject: Re: Contributing to KSPP newbie

This might be a bit to vague but is there any task that is beginner
friendly? I did have a look at todo list and most of them look quite

On Fri, Nov 29, 2019 at 6:29 AM Mark Rutland <> wrote:

> On Thu, Nov 28, 2019 at 11:39:11PM -0500, Kassad wrote:
> > Hey Kees,
> >
> > I'm 3rd university student interested in learning more about the linux
> kernel.
> > I'm came across this subsystem, since it aligns with my interest in
> security.
> > Do you think as a newbie this task
> will
> > be a good starting point?
> I think this specific task (Disable arm32 kuser helpers) has already
> been done, and the ticket is stale.
> On arm CONFIG_KUSER_HELPERS can be disabled on kernels that don't need
> to run on HW prior to ARMv6. See commit:
>   f6f91b0d9fd971c6 ("ARM: allow kuser helpers to be removed from the
> vector page")
> On arm64, CONFIG_KUSER_HELPERS can be disabled on any kernel. See
> commit:
>   1b3cf2c2a3f42b ("arm64: compat: Add KUSER_HELPERS config option")
> Thanks,
> Mark.

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