From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760064Ab3DCOAj (ORCPT ); Wed, 3 Apr 2013 10:00:39 -0400 Received: from mail-da0-f51.google.com ([209.85.210.51]:36778 "EHLO mail-da0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758158Ab3DCOAe (ORCPT ); Wed, 3 Apr 2013 10:00:34 -0400 Message-ID: <1364997630.13853.19.camel@edumazet-glaptop> Subject: Re: [ 105/124] af_unix: dont send SCM_CREDENTIAL when dest socket is NULL From: Eric Dumazet To: Sven Joachim Cc: Greg Kroah-Hartman , linux-kernel@vger.kernel.org, stable@vger.kernel.org, Ding Tianhong , Eric Dumazet , "David S. Miller" Date: Wed, 03 Apr 2013 07:00:30 -0700 In-Reply-To: <87vc833kpf.fsf@turtle.gmx.de> References: <20130402221104.163133110@linuxfoundation.org> <20130402221116.307254752@linuxfoundation.org> <87vc833kpf.fsf@turtle.gmx.de> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2013-04-03 at 13:41 +0200, Sven Joachim wrote: > On 2013-04-03 00:11 +0200, Greg Kroah-Hartman wrote: > > > 3.8-stable review patch. If anyone has any objections, please let me know. > > I'm seeing several complaints from udevd at boot in both 3.8.6-rc1 and > 3.9-rc5: "udevd[56]: sender uid=65534, message ignored". Reverting the > patch below on top of 3.8.6-rc1 fixes that. I'm using udev version 175 > here, and 65534 is the uid of user "nobody". And if you use a 3.1 kernel (before commit 16e5726269611b71c930054ffe9b858c1cea88eb) are you seeing this message ? It might be a wrong sender (application bug or bad identity), and udevd correctly discards the incoming message.