linux-kernel - Re: [PATCH v4 1/1] exec: seal system mappings

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Message-ID: <CABi2SkVwBpV4gcWJVNKxAmDF4_6HMOyyv-9mYtTaGgqG0-JZCA@mail.gmail.com>
Date: Mon, 16 Dec 2024 12:20:30 -0800
From: Jeff Xu <jeffxu@...omium.org>
To: "Liam R. Howlett" <Liam.Howlett@...cle.com>, Jeff Xu <jeffxu@...omium.org>, 
	Andrei Vagin <avagin@...il.com>, akpm@...ux-foundation.org, keescook@...omium.org, 
	jannh@...gle.com, torvalds@...ux-foundation.org, 
	adhemerval.zanella@...aro.org, oleg@...hat.com, linux-kernel@...r.kernel.org, 
	linux-hardening@...r.kernel.org, linux-mm@...ck.org, jorgelo@...omium.org, 
	sroettger@...gle.com, ojeda@...nel.org, adobriyan@...il.com, 
	anna-maria@...utronix.de, mark.rutland@....com, linus.walleij@...aro.org, 
	Jason@...c4.com, deller@....de, rdunlap@...radead.org, davem@...emloft.net, 
	hch@....de, peterx@...hat.com, hca@...ux.ibm.com, f.fainelli@...il.com, 
	gerg@...nel.org, dave.hansen@...ux.intel.com, mingo@...nel.org, 
	ardb@...nel.org, mhocko@...e.com, 42.hyeyoo@...il.com, peterz@...radead.org, 
	ardb@...gle.com, enh@...gle.com, rientjes@...gle.com, groeck@...omium.org, 
	mpe@...erman.id.au, Dmitry Safonov <0x7f454c46@...il.com>, 
	Mike Rapoport <mike.rapoport@...il.com>, 
	Alexander Mikhalitsyn <aleksandr.mikhalitsyn@...onical.com>, Andrei Vagin <avagin@...gle.com>
Subject: Re: [PATCH v4 1/1] exec: seal system mappings

Hi Liam

On Mon, Dec 16, 2024 at 10:56 AM Liam R. Howlett
<Liam.Howlett@...cle.com> wrote:
>
> * Jeff Xu <jeffxu@...omium.org> [241216 13:35]:
>
> ...
>
> > >
> > > I like the idea and I think the opt-out solution should work for CRIU.
> > > CRIU will be able to call this prctl and re-execute itself.
> > >
> > Great! Let's iterate on the opt-out solution then.
> >
>
> This patch set has been NACK'ed.
>
> Please rework your solution and address all the concerns raised.  It
> will not be accepted in the current form.
>
Thanks for reminding me.  I'm still considering Lorenzo's feedback
about kernel cmd line [1], if that is what you are referring to.

This thread was initiated from Andrei, and is a separate topic for
CRIU, which I'm gathering input for a solution.

I would like to gather all feedback and consider them before the next
version of this series.

[1] https://lore.kernel.org/all/4e7088eb-b017-4d8b-8e0f-5cb409b112cb@lucifer.local/

Thanks
-Jeff

> ...
>
> Thanks,
> Liam