[PATCH] ARM: Remove address checking for MMUless devices

[Russell King (Oracle)]

On Mon, Jul 01, 2024 at 12:17:10PM -0700, Kees Cook wrote:
> On Mon, Jul 01, 2024 at 01:54:21PM +0200, Linux regression tracking (Thorsten Leemhuis) wrote:
> > On 12.06.24 03:25, Yanjun Yang wrote:
> > > Apologies for not CCing the relevant maintainers in my previous email.
> > > 
> > > On Tue, Jun 11, 2024 at 6:09 PM Yanjun Yang <yangyj.ee at gmail.com> wrote:
> > >>
> > >> Commit 169f9102f9198b ("ARM: 9350/1: fault:
> > >> Implement copy_from_kernel_nofault_allowed()") added the function to check
> > >> address before use. However, for devices without MMU, addr > TASK_SIZE
> > >> will always fail.  This patch move this function after the #ifdef
> > >> CONFIG_MMU statement.
> > 
> > What happened to this fix regression for a 6.9 regression? From here it
> > looks like it fell through the cracks, but I might be missing something.
> 
> This patch can be sent through rmk's ARM patch tracker, but if it's
> urgent, I could take it via my tree? It has Ard's Ack.

I've been so busy with a high priority work issue that I've not been
aware of this email thread until I saw it tonight (because I haven't
been able to read much email!)

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