linux-hardening - Re: [PATCH v1 0/2] mremap refactor: check src address for vma boundaries first.

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Message-ID: <CABi2SkU84jZFa8qGPQen9g16zQ9E-Z9VOuUE+HjNDSMCPoRA1g@mail.gmail.com>
Date: Thu, 15 Aug 2024 13:23:02 -0700
From: Jeff Xu <jeffxu@...omium.org>
To: "Liam R. Howlett" <Liam.Howlett@...cle.com>, Jeff Xu <jeffxu@...gle.com>, 
	Jeff Xu <jeffxu@...omium.org>, akpm@...ux-foundation.org, willy@...radead.org, 
	torvalds@...ux-foundation.org, pedro.falcato@...il.com, 
	linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org, 
	linux-mm@...ck.org, linux-hardening@...r.kernel.org, 
	lorenzo.stoakes@...cle.com, mpe@...erman.id.au, oliver.sang@...el.com, 
	vbabka@...e.cz, keescook@...omium.org
Subject: Re: [PATCH v1 0/2] mremap refactor: check src address for vma
 boundaries first.

On Thu, Aug 15, 2024 at 1:14 PM Liam R. Howlett <Liam.Howlett@...cle.com> wrote:
>
> * Jeff Xu <jeffxu@...gle.com> [240815 13:23]:
> > On Thu, Aug 15, 2024 at 9:50 AM Liam R. Howlett <Liam.Howlett@...cle.com> wrote:
> > >
> > > * Jeff Xu <jeffxu@...omium.org> [240814 23:46]:
> > > > On Wed, Aug 14, 2024 at 12:55 PM Liam R. Howlett
> > > > <Liam.Howlett@...cle.com> wrote:
> > > > > The majority of the comments to V2 are mine, you only told us that
> > > > > splitting a sealed vma is wrong (after I asked you directly to answer)
> > > > > and then you made a comment about testing of the patch set. Besides the
> > > > > direct responses to me, your comment was "wait for me to test".
> > > > >
> > > > Please share this link for  " Besides the direct responses to me, your
> > > > comment was "wait for me to test".
> > > > Or  pop up that email by responding to it, to remind me.  Thanks.
> > >
> > > [1].
> >
> > That is responding to Andrew, to indicate V2 patch has dependency on
> > arch_munmap in PPC. And I will review/test the code, I will respond to
> > Andrew directly.
> >
> > PS Your statement above is entirely false, and out of context.
> >
> > " You only told us that splitting a sealed vma is wrong (after I asked
> > you directly to answer) and then you made a comment about testing of
> > the patch set. Besides the direct responses to me, your comment was
> > "wait for me to test".
>
> [1] has your "wait for me to test" to hold up a patch set, [2] has you
> answering my direct question to you and making the untested comment to
> someone else.
>
This is the last time that I'm trying to clarify this.
[1] is my response to Andrew and Pedro.
[2] is my comments about V2 lack of test , i.e. no selftest change, no
extra tests added.

-Jeff

> So, entirely true.
>
> Liam
>
> [1]. https://lore.kernel.org/all/CALmYWFs0v07z5vheDt1h3hD+3--yr6Va0ZuQeaATo+-8MuRJ-g@mail.gmail.com/
> [2]. https://lore.kernel.org/all/CALmYWFvURJBgyFw7x5qrL4CqoZjy92NeFAS750XaLxO7o7Cv9A@mail.gmail.com/