From: Vasiliy Kulikov <segoon@openwall.com>
To: Greg KH <gregkh@suse.de>
Cc: linux-kernel@vger.kernel.org, Kees Cook <kees.cook@canonical.com>,
Eugene Teo <eugeneteo@gmail.com>
Subject: Re: [RFC] add mount options to sysfs
Date: Fri, 20 May 2011 17:36:15 +0400 [thread overview]
Message-ID: <20110520133615.GB8112@albatros> (raw)
In-Reply-To: <20110520133451.GA8112@albatros>
On Fri, May 20, 2011 at 17:34 +0400, Vasiliy Kulikov wrote:
> On Fri, May 20, 2011 at 06:30 -0700, Greg KH wrote:
> > > Correct. So, if I understood you, you are OK with adding mount options
> > > for debugfs, but not sysfs, right? What is the difference between them
> > > in sense of permissions?
> >
> > debugfs is "there are no rules", so changing the permissions on it
> > shouldn't break anything as no userspace tools "should" rely on it. Now
> > that really isn't true (see the perf stuff), but overall it is, so I
> > don't worry about changing things there as much as sysfs, which has
> > hundreds of tools relying on it.
>
> What would break if the default behaviour is not changed?
Err... sorry, s/would break/would it break/
--
Vasiliy Kulikov
http://www.openwall.com - bringing security into open computing environments
next prev parent reply other threads:[~2011-05-20 13:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-18 16:31 [RFC] add mount options to sysfs Vasiliy Kulikov
2011-05-18 16:39 ` Greg KH
2011-05-18 17:05 ` Vasiliy Kulikov
2011-05-18 19:17 ` Greg KH
2011-05-19 6:26 ` Vasiliy Kulikov
2011-05-19 17:12 ` Greg KH
2011-05-20 9:59 ` Vasiliy Kulikov
2011-05-20 13:30 ` Greg KH
2011-05-20 13:34 ` Vasiliy Kulikov
2011-05-20 13:36 ` Vasiliy Kulikov [this message]
2011-05-20 13:54 ` Greg KH
2011-05-20 15:17 ` Kees Cook
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