linux-kernel - Re: [PATCH] System Wide Capability Bounding Set

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Message-ID: <20110214212453.GA6582@localhost>
Date:	Mon, 14 Feb 2011 15:24:53 -0600
From:	"Serge E. Hallyn" <serge.hallyn@...onical.com>
To:	Eric Paris <eparis@...isplace.org>
Cc:	Eric Paris <eparis@...hat.com>,
	"Andrew G. Morgan" <morgan@...nel.org>,
	"Serge E. Hallyn" <serge.hallyn@...onical.com>,
	Steve Grubb <sgrubb@...hat.com>,
	"Serge E. Hallyn" <serge@...onical.com>,
	linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org
Subject: Re: [PATCH] System Wide Capability Bounding Set

Quoting Eric Paris (eparis@...isplace.org):
> On Mon, Feb 7, 2011 at 9:55 PM, Eric Paris <eparis@...hat.com> wrote:
> >
> > Below is what I'm working on.  I've asked dhowells to review the creds
> > code, since commit_creds() does not take const.  Maybe that's just an
> > oversight.  Basically I've exposed two new sysctls.
> >
> > /proc/sys/kernel/usermodehelper/bset
> > /proc/sys/kernel/usermodehelper/inheritable
> >
> > You must have CAP_SYS_MODULE to change these (changes are &= ONLY).
> > When the kernel launches a usermodehelper it will do so with these as
> > the bset and pI.  I haven't attempted securebits and uid (since I didn't
> > really need them I don't think)  But will if anyone can think of a use
> > case.
> >
> > Is this what you were thinking?
> 
> 
> Anything?  Problems with this patch/approach?

Sorry, I've just not had a chance to take a close enough look.  I'll
try to do so tonight.

-serge
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