linux-kernel - Re: [PATCH 0/6] File Sealing & memfd

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

Hi

On Thu, Apr 10, 2014 at 11:16 PM, Andy Lutomirski <luto@...capital.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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