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Date: Fri, 11 Apr 2014 00:57:17 +0200
Message-ID: <CANq1E4Qa8N0G8whyW5OWQS4x9=CVOF0PpcLhDi4j3wGTHX0==w@mail.gmail.com>
Subject: Re: [PATCH 0/6] File Sealing & memfd_create()
From: David Herrmann <dh.herrmann@gmail.com>
To: Andy Lutomirski <luto@amacapital.net>
Cc: "Theodore Ts'o" <tytso@mit.edu>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        Kay Sievers <kay@vrfy.org>, Daniel Mack <zonque@gmail.com>,
        Lennart Poettering <lennart@poettering.net>,
        John Stultz <john.stultz@linaro.org>,
        Greg Kroah-Hartman <greg@kroah.com>,
        "dri-devel@lists.freedesktop.org" <dri-devel@lists.freedesktop.org>,
        linux-fsdevel <linux-fsdevel@vger.kernel.org>,
        linux-mm <linux-mm@kvack.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Ryan Lortie <desrt@desrt.ca>,
        "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>
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Hi

On Thu, Apr 10, 2014 at 11:16 PM, Andy Lutomirski <luto@amacapital.net> wrote:
> Would it make sense for the initial mode on a memfd inode to be 000?
> Anyone who finds this to be problematic could use fchmod to fix it.

memfd_create() should be subject to umask() just like anything else.
That should solve any possible race here, right?

Thanks
David
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