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Date:   Tue, 9 Jun 2020 22:27:54 -0700
From:   Kees Cook <keescook@chromium.org>
To:     Christian Brauner <christian.brauner@ubuntu.com>
Cc:     containers@lists.linux-foundation.org,
        Giuseppe Scrivano <gscrivan@redhat.com>,
        Robert Sesek <rsesek@google.com>,
        Chris Palmer <palmer@google.com>, Jann Horn <jannh@google.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Daniel Wagner <daniel.wagner@bmw-carit.de>,
        linux-kernel@vger.kernel.org, Matt Denton <mpdenton@google.com>,
        John Fastabend <john.r.fastabend@intel.com>,
        linux-fsdevel@vger.kernel.org, Tejun Heo <tj@kernel.org>,
        Al Viro <viro@zeniv.linux.org.uk>, cgroups@vger.kernel.org,
        stable@vger.kernel.org, "David S . Miller" <davem@davemloft.net>
Subject: Re: [PATCH v3 1/4] fs, net: Standardize on file_receive helper to
 move fds across processes
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On Tue, Jun 09, 2020 at 11:27:30PM +0200, Christian Brauner wrote:
> On June 9, 2020 10:55:42 PM GMT+02:00, Kees Cook <keescook@chromium.org> wrote:
> >LOL. And while we were debating this, hch just went and cleaned stuff up:
> >
> >2618d530dd8b ("net/scm: cleanup scm_detach_fds")
> >
> >So, um, yeah, now my proposal is actually even closer to what we already
> >have there. We just add the replace_fd() logic to __scm_install_fd() and
> >we're done with it.
> 
> Cool, you have a link? :)

How about this:

https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?h=devel/seccomp/addfd/v3.1&id=bb94586b9e7cc88e915536c2e9fb991a97b62416

-- 
Kees Cook