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Date:   Fri, 26 Apr 2019 05:45:25 +1000
From:   Aleksa Sarai <cyphar@cyphar.com>
To:     Kees Cook <keescook@chromium.org>
Cc:     Andy Lutomirski <luto@kernel.org>,
        Al Viro <viro@zeniv.linux.org.uk>,
        Jeff Layton <jlayton@kernel.org>,
        "J. Bruce Fields" <bfields@fieldses.org>,
        Arnd Bergmann <arnd@arndb.de>,
        David Howells <dhowells@redhat.com>,
        Eric Biederman <ebiederm@xmission.com>,
        Jann Horn <jannh@google.com>,
        Christian Brauner <christian@brauner.io>,
        David Drysdale <drysdale@google.com>,
        Tycho Andersen <tycho@tycho.ws>,
        Linux Containers <containers@lists.linux-foundation.org>,
        Linux FS Devel <linux-fsdevel@vger.kernel.org>,
        Linux API <linux-api@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Alexei Starovoitov <ast@kernel.org>,
        Chanho Min <chanho.min@lge.com>,
        Oleg Nesterov <oleg@redhat.com>, Aleksa Sarai <asarai@suse.de>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        LKML <linux-kernel@vger.kernel.org>,
        linux-arch <linux-arch@vger.kernel.org>
Subject: Re: [PATCH RESEND v5 0/5] namei: vfs flags to restrict path
 resolution
Message-ID: <20190425194525.5d66uzfqfxmorx2n@yavin>
References: <20190320143717.2523-1-cyphar@cyphar.com>
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 <20190325130429.dbrgjxnvq3w5cpb3@yavin>
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 <20190424153806.64qkkmkudzodxnz2@yavin>
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On 2019-04-25, Aleksa Sarai <cyphar@cyphar.com> wrote:
> On 2019-04-23, Kees Cook <keescook@chromium.org> wrote:
> > This series provides solutions to so many different race and confusion
> > issues, I'd really like to see it land. What's the next step here? Is
> > this planned to go directly to Linus for v5.2, or is it going to live
> > in -mm for a while? I'd really like to see this moving forward.
>=20
> Given some of the security requirements of this interface, I think
> getting it to live in -mm wouldn't be a bad idea so folks can shake the
> bugs out before it's depended on by container runtimes.

Scratch my mention of -mm, it should be in Al's tree since it touches
quite a few of the namei seqlocks. My point was that it should live in
someone's tree for a little bit before it goes into a release.

I will put together a PoC of a resolveat(2) variation of this series and
re-send it out with both versions.

--=20
Aleksa Sarai
Senior Software Engineer (Containers)
SUSE Linux GmbH
<https://www.cyphar.com/>

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