From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH] inet: fix ip_mc_drop_socket() Date: Tue, 09 Nov 2010 08:26:56 -0800 (PST) Message-ID: <20101109.082656.193719925.davem@davemloft.net> References: <1289249191.2790.3.camel@edumazet-laptop> <20101108205511.GB1585@arch.trippelsdorf.de> <1289250954.2790.11.camel@edumazet-laptop> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: markus@trippelsdorf.de, paulmck@linux.vnet.ibm.com, miles.lane@gmail.com, ilpo.jarvinen@helsinki.fi, linux-kernel@vger.kernel.org, lenb@kernel.org, netdev@vger.kernel.org To: eric.dumazet@gmail.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:48452 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751340Ab0KIQ0d (ORCPT ); Tue, 9 Nov 2010 11:26:33 -0500 In-Reply-To: <1289250954.2790.11.camel@edumazet-laptop> Sender: netdev-owner@vger.kernel.org List-ID: From: Eric Dumazet Date: Mon, 08 Nov 2010 22:15:54 +0100 > Hmm, I believe I found the bug. > > Thanks guys ! > > [PATCH] inet: fix ip_mc_drop_socket() > > commit 8723e1b4ad9be4444 (inet: RCU changes in inetdev_by_index()) > forgot one call site in ip_mc_drop_socket() > > We should not decrease idev refcount after inetdev_by_index() call, > since refcount is not increased anymore. > > Reported-by: Markus Trippelsdorf > Reported-by: Miles Lane > Signed-off-by: Eric Dumazet Applied, thanks a lot!