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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/