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Message-ID: <CALmYWFt6F6h+NQR+BdrsjP53naS=Ps99Cpxmr4vpHM82=0-JSQ@mail.gmail.com>
Date:   Tue, 30 May 2023 07:44:09 -0700
From:   Jeff Xu <jeffxu@...gle.com>
To:     Christian Brauner <brauner@...nel.org>
Cc:     Kees Cook <keescook@...omium.org>, Jan Kara <jack@...e.cz>,
        Andreas Gruenbacher <agruenba@...hat.com>,
        Daniel Verkamp <dverkamp@...omium.org>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Boqun Feng <boqun.feng@...il.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Frederic Weisbecker <frederic@...nel.org>,
        syzbot+ac3b41786a2d0565b6d5@...kaller.appspotmail.com,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH] pid: Replace struct pid 1-element array with flex-array

On Thu, May 18, 2023 at 8:07 AM Christian Brauner <brauner@...nel.org> wrote:
>
> On Wed, 17 May 2023 15:58:42 -0700, Kees Cook wrote:
> > For pid namespaces, struct pid uses a dynamically sized array member,
> > "numbers". This was implemented using the ancient 1-element fake flexible
> > array, which has been deprecated for decades. Replace it with a C99
> > flexible array, refactor the array size calculations to use struct_size(),
> > and address elements via indexes. Note that the static initializer (which
> > defines a single element) works as-is, and requires no special handling.
> >
> > [...]
>
> Applied to the kernel.fork branch of the brauner/linux.git tree.
> Patches in the kernel.fork branch should appear in linux-next soon.
>
> Please report any outstanding bugs that were missed during review in a
> new review to the original patch series allowing us to drop it.
>
> It's encouraged to provide Acked-bys and Reviewed-bys even though the
> patch has now been applied. If possible patch trailers will be updated.
>
Acked-by: Jeff Xu <jeffxu@...gle.com>


> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git
> branch: kernel.fork
>
> [1/1] pid: Replace struct pid 1-element array with flex-array
>       https://git.kernel.org/brauner/linux/c/ad0ff58dc959

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