From: Greg KH <gregkh@suse.de>
To: Kees Cook <kees.cook@canonical.com>
Cc: linux-kernel@vger.kernel.org, Eugene Teo <eugeneteo@kernel.sg>,
Ralph Campbell <infinipath@qlogic.com>,
Roland Dreier <roland@kernel.org>,
Sean Hefty <sean.hefty@intel.com>,
Hal Rosenstock <hal.rosenstock@gmail.com>,
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Miklos Szeredi <miklos@szeredi.hu>,
"J. Bruce Fields" <bfields@fieldses.org>,
Neil Brown <neilb@suse.de>, Matthew Wilcox <matthew@wil.cx>,
James Morris <jmorris@namei.org>,
Stephen Smalley <sds@tycho.nsa.gov>,
Eric Paris <eparis@parisplace.org>,
Nick Piggin <npiggin@kernel.dk>, Arnd Bergmann <arnd@arndb.de>,
Ian Campbell <ian.campbell@citrix.com>,
Jarkko Sakkinen <ext-jarkko.2.sakkinen@nokia.com>,
Tejun Heo <tj@kernel.org>,
Casey Schaufler <casey@schaufler-ca.com>
Subject: Re: [PATCH 2/2] debugfs: only allow root access to debugging interfaces
Date: Tue, 22 Feb 2011 11:13:33 -0800 [thread overview]
Message-ID: <20110222191333.GA9991@suse.de> (raw)
In-Reply-To: <20110222181613.GU4000@outflux.net>
On Tue, Feb 22, 2011 at 10:16:13AM -0800, Kees Cook wrote:
> Har har, I forgot --compose to "git send-email".
>
> Anyway, with the continuing deluge of bugs in the "debug" filesystem, I
> would like to make that filesystem's root directory mode 0700 by default
> since it's filled with crazy stuff that regular users do not need to see.
But that will break existing users of this interface, right?
> Better to try to just close the door completely on all the stuff in there.
> It is, after all, supposed to only be used for debugging, right?
No, not really, people use it for all sorts of crazy things.
Remember, the only rule in debugfs is:
There are no rules in debugfs.
thanks,
greg k-h
next prev parent reply other threads:[~2011-02-22 19:14 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-22 18:09 [PATCH 1/2] fs: pass root inode mode to simple_fill_super Kees Cook
2011-02-22 18:09 ` [PATCH 2/2] debugfs: only allow root access to debugging interfaces Kees Cook
2011-02-22 18:16 ` Kees Cook
2011-02-22 18:32 ` David Daney
2011-02-22 18:47 ` Kees Cook
2011-02-22 19:14 ` Greg KH
2011-02-22 19:25 ` Kees Cook
2011-02-22 19:34 ` Alan Cox
2011-02-22 19:50 ` Kees Cook
2011-02-22 19:53 ` David Daney
2011-02-22 20:16 ` Greg KH
2011-02-22 20:28 ` Kees Cook
2011-02-22 20:37 ` Greg KH
2011-02-22 20:54 ` Kees Cook
2011-02-25 0:22 ` Kees Cook
2011-02-25 0:35 ` Greg KH
2011-02-25 1:12 ` Kees Cook
2011-02-25 3:31 ` Greg KH
2011-02-25 3:39 ` Al Viro
2011-02-22 19:54 ` Kees Cook
2011-02-22 19:43 ` Greg KH
2011-02-22 19:13 ` Greg KH [this message]
2011-02-22 19:22 ` Kees Cook
2011-02-22 19:33 ` Greg KH
2011-02-22 20:29 ` Dan Carpenter
2011-02-22 20:33 ` Kees Cook
2011-02-22 20:58 ` Henrique de Moraes Holschuh
2011-02-24 16:38 ` Steven Rostedt
2011-02-24 17:34 ` Henrique de Moraes Holschuh
2011-02-26 11:50 ` Arnd Bergmann
2011-02-25 19:56 ` Greg KH
2011-02-25 20:40 ` Hugh Dickins
2011-02-25 20:57 ` Greg KH
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