Re: [PATCH] x86/mm: fix overflow in __cpa_addr

From: Rik van Riel

Date: Tue Oct 07 2025 - 13:24:16 EST


On Mon, 2025-10-06 at 15:22 -0700, Dave Hansen wrote:
> On 10/5/25 20:48, Rik van Riel wrote:
> > Signed-off-by: Rik van Riel <riel@xxxxxxxxxxx>
> > Cc: stable@xxxxxxxxxx
> > Reported-by: syzbot+afec6555eef563c66c97@xxxxxxxxxxxxxxxxxxxxxxxxx
> > Fixes: 86e6815b316e ("x86/mm: Change cpa_flush() to call
> > flush_kernel_range() directly")
>
> Hi Folks,
>
> Thanks for the quick fix here!
>
> But this doesn't need to go to stable, right? I think it just went to
> Linus during the merge window last week so it never made it to a
> release, so won't need a stable backport.
>
Oh good point.

I had totally lost track of when the problem
was merged upstream in the first place.

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