Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758320AbYBWPhj (ORCPT ); Sat, 23 Feb 2008 10:37:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751546AbYBWPhb (ORCPT ); Sat, 23 Feb 2008 10:37:31 -0500 Received: from e5.ny.us.ibm.com ([32.97.182.145]:60677 "EHLO e5.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751233AbYBWPha (ORCPT ); Sat, 23 Feb 2008 10:37:30 -0500 Date: Sat, 23 Feb 2008 09:36:58 -0600 From: "Serge E. Hallyn" To: Andrew Morton Cc: "Serge E. Hallyn" , lkml , Andrew Morgan Subject: Re: [PATCH 1/1] file capabilities: simplify signal check Message-ID: <20080223153658.GA26634@sergelap.austin.ibm.com> References: <20080220161550.GA14630@sergelap.austin.ibm.com> <20080223000243.e6efb30f.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080223000243.e6efb30f.akpm@linux-foundation.org> User-Agent: Mutt/1.5.16 (2007-06-09) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1759 Lines: 49 Quoting Andrew Morton (akpm@linux-foundation.org): > On Wed, 20 Feb 2008 10:15:50 -0600 "Serge E. Hallyn" wrote: > > > >From bd076c7245d02be0cc01b7c09bd7170ec5946492 Mon Sep 17 00:00:00 2001 > > From: Serge E. Hallyn > > Date: Sun, 17 Feb 2008 20:28:07 -0500 > > Subject: [PATCH 1/1] file capabilities: simplify signal check > > > > Simplify the uid equivalence check in cap_task_kill(). Anyone > > can kill a process owned by the same uid. > > > > Without this patch wireshark is reported to fail. > > Strange that a patch titled "simplify...." actually fixes a bug. Sorry. Yeah that's a bad subject. > > Signed-off-by: Serge E. Hallyn > > Signed-off-by: Andrew G. Morgan > > --- > > security/commoncap.c | 2 +- > > 1 files changed, 1 insertions(+), 1 deletions(-) > > > > diff --git a/security/commoncap.c b/security/commoncap.c > > index 5aba826..bb0c095 100644 > > --- a/security/commoncap.c > > +++ b/security/commoncap.c > > @@ -552,7 +552,7 @@ int cap_task_kill(struct task_struct *p, struct siginfo *info, > > * allowed. > > * We must preserve legacy signal behavior in this case. > > */ > > - if (p->euid == 0 && p->uid == current->uid) > > + if (p->uid == current->uid) > > return 0; > > > > /* sigcont is permitted within same session */ > > I've marked this as needed-in-2.6.24. Was that appropriate? Yes, thanks. I doubt wireshark is the only thing that'll break otherwise. thanks, -serge -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/