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

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Message-ID: <AANLkTin701rA70UzDYK21nSmUAYz62Xg=-Rtxg8nebWw@mail.gmail.com>
Date:	Mon, 14 Feb 2011 15:45:46 -0500
From:	Eric Paris <eparis@...isplace.org>
To:	Eric Paris <eparis@...hat.com>
Cc:	"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

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?

-Eric
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