Re: [PATCH v8] mm: pgtable: free kernel page tables via RCU to fix ptdump UAF

From: David CARLIER

Date: Fri Jul 10 2026 - 05:39:31 EST


Hi Lorenzo,

On Fri, 10 Jul 2026 at 10:13, Lorenzo Stoakes <ljs@xxxxxxxxxx> wrote:
>
> On Tue, Jul 07, 2026 at 06:08:49PM +0100, David CARLIER wrote:
> > Sure thing :)
> >
> > On Tue, 7 Jul 2026 at 16:19, Lorenzo Stoakes <ljs@xxxxxxxxxx> wrote:
> > >
> > > Hi David C,
> > >
> > > This has been through a lot of revisions so I think for the sake of expediency
> > > the best solution here is for me to grab this and fiddle with it a bit then post
> > > it out myself.
> > >
> > > TO BE VERY CLEAR - I will keep your authorship and attribution :), and simply
> > > stick my name on a Co-developed-by tag.
> > >
> > > So this will remain your patch.
>
> Apologies, but the approach I'm taking is very significantly different so it
> would be problematic in terms of patch provenance to do this :(
>
> I will make sure to credit you directly in the commit message so there is proper
> attribution, this patch and follow up stuff has grown a lot (been working on it
> all of yesterday afternoon/evening + this morning) and need to ensure the stable
> stuff is backported etc.
>
> Thanks for your contributions here, very much appreciated, and sorry to have
> messed you about on this!
>
> Cheers, Lorenzo

No worries I understand.

Cheers !