linux-kernel - Re: oprofile / selinux / security_port

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] [day] [month] [year] [list]

Date:	Tue, 27 Mar 2007 10:12:17 -0400 (EDT)
From:	James Morris <jmorris@...ei.org>
To:	Sami Farin <safari-kernel@...ari.iki.fi>
cc:	Stephen Smalley <sds@...ho.nsa.gov>,
	linux-kernel Mailing List <linux-kernel@...r.kernel.org>,
	Eric Paris <eparis@...isplace.org>
Subject: Re: oprofile / selinux / security_port_sid

On Tue, 27 Mar 2007, Sami Farin wrote:

> On Tue, Mar 27, 2007 at 09:40:23 -0400, Stephen Smalley wrote:
> > On Tue, 2007-03-27 at 13:06 +0300, Sami Farin wrote:
> > > is there room for improvement in security_port_sid() ?
> > 
> > Yes, lots of room.  Also, it won't get called per-packet if you enable
> > secmark (echo 0 > /selinux/compat_net or boot with selinux_compat_net=0
> > or build with SECURITY_SELINUX_ENABLE_SECMARK_DEFAULT), although that
> > may require updating your policy.
> 
> Hmm, test was done with
> CONFIG_NETWORK_SECMARK=y
> CONFIG_SECURITY_SELINUX_ENABLE_SECMARK_DEFAULT=y
> and /selinux/compat_net = 0

Even with this setting, you'll be hitting security_port_sid() via 
connect(2) and bind(2).  We need to fix it.



- James
-- 
James Morris
<jmorris@...ei.org>
-
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/