Re: [tip: x86/urgent] x86/mm/pat: Acquire init_mm write lock on collapse to avoid UAF

[Mike Rapoport]

On Tue, Sep 01, 2026 at 04:36:38PM -0700, Dave Hansen wrote:
> On 9/1/26 00:10, Lorenzo Stoakes (ARM) wrote:
> > Dave - you've somehow applied this patch completely incorrectly to x86/urgent,
> > I'm not happy with this going to Linus in this form :/
> 
> Me neither, btw.
> 
> So, here it is applied:
> 
> > https://git.kernel.org/pub/scm/linux/kernel/git/daveh/devel.git/log/?h=cpa1
> 
> The diffstat exactly matches the mbox that I sucked in. I'm going to
> launch some tests overnight.
> 
> The only things I really munged were a little merge issue with patch 1,
> a SoB ordering issue in patch 3, and a few scattered rewordings in the
> commit messages.
> 
> Not pushed to x86/urgent, yet.

I have to say I'm confused with today's batch of tip-bot emails saying Ingo
applied these to x86/mm :/

-- 
Sincerely yours,
Mike.