linux-kernel - Re: [PATCH] elf: don't use MAP_FIXED_NOREPLACE for elf interpreter mappings

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Message-ID: <202110051626.0AB43704@keescook>
Date:   Tue, 5 Oct 2021 16:27:03 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Chen Jingwen <chenjingwen6@...wei.com>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Michal Hocko <mhocko@...e.com>,
        Andrei Vagin <avagin@...nvz.org>,
        Khalid Aziz <khalid.aziz@...cle.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] elf: don't use MAP_FIXED_NOREPLACE for elf interpreter
 mappings

On Tue, Oct 05, 2021 at 04:12:12PM -0700, Andrew Morton wrote:
> On Mon, 4 Oct 2021 13:00:07 -0700 Kees Cook <keescook@...omium.org> wrote:
> 
> > Andrew, are you able to pick up [1], BTW? It seems to have fallen
> > through the cracks.
> > 
> > [1] https://lore.kernel.org/all/20210916215947.3993776-1-keescook@chromium.org/T/#u
> 
> I added that to -mm on 19 September.:
> https://ozlabs.org/~akpm/mmotm/broken-out/binfmt_elf-reintroduce-using-map_fixed_noreplace.patch

Ah! Thank you. :)

-- 
Kees Cook