From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick McHardy Subject: Re: possible double call of kfree_skb in net/llc/llc_sap.c Date: Tue, 27 May 2008 08:16:11 +0200 Message-ID: <483BA72B.5010207@trash.net> References: <84ee89da0805262300v747c712ayfb60ac8aa790edb7@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: linux-kernel@vger.kernel.org, Linux Netdev List To: Dmitry Petukhov Return-path: Received: from stinky.trash.net ([213.144.137.162]:43625 "EHLO stinky.trash.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752742AbYE0GQN (ORCPT ); Tue, 27 May 2008 02:16:13 -0400 In-Reply-To: <84ee89da0805262300v747c712ayfb60ac8aa790edb7@mail.gmail.com> Sender: netdev-owner@vger.kernel.org List-ID: Dmitry Petukhov wrote: > In the file net/llc/llc_sap.c, funcion llc_sap_state_process, > the call to kfree_skb in the line 227 can proceed even if skb was already freed > on line 218, or 224, or queued to the user within sock_queue_rcv_skb function. > Obviously return statement is missing after line 225. > > This problem was found by Alex Shevkov. Could you send a patch please?