From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nicolas Dichtel Subject: Re: [v3] skbuff: Do not scrub skb mark within the same name space Date: Thu, 16 Apr 2015 09:35:31 +0200 Message-ID: <552F6643.4090206@6wind.com> References: <20150415100107.GA3655@gondor.apana.org.au> <552E3B7A.2040701@6wind.com> <20150415102229.GA3917@gondor.apana.org.au> <20150415135739.GA5534@gondor.apana.org.au> <552E86A6.9000101@6wind.com> <20150416010326.GA10864@gondor.apana.org.au> Reply-To: nicolas.dichtel@6wind.com Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: netdev@vger.kernel.org, "Eric W. Biederman" , linux-security-module@vger.kernel.org, Thomas Graf To: James Morris , Herbert Xu Return-path: Received: from mail-wi0-f180.google.com ([209.85.212.180]:36424 "EHLO mail-wi0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751664AbbDPHfe (ORCPT ); Thu, 16 Apr 2015 03:35:34 -0400 Received: by wizk4 with SMTP id k4so183477212wiz.1 for ; Thu, 16 Apr 2015 00:35:33 -0700 (PDT) In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: Le 16/04/2015 09:02, James Morris a =E9crit : > On Thu, 16 Apr 2015, Herbert Xu wrote: [snip] >> PS I used the wrong email for James the first time around. So >> let me repeat the question here. Should secmark be preserved >> or cleared across tunnels within the same name space? In fact, >> do our security models even support name spaces? > > They don't support namespaces, and maintaining the label is critical = for > SELinux, at least, which mediates security for the system as a whole. Herbert, could you send a v4 of your patch with the secmark included?