From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932114AbVKTXUL (ORCPT ); Sun, 20 Nov 2005 18:20:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932115AbVKTXUL (ORCPT ); Sun, 20 Nov 2005 18:20:11 -0500 Received: from emailhub.stusta.mhn.de ([141.84.69.5]:39696 "HELO mailout.stusta.mhn.de") by vger.kernel.org with SMTP id S932114AbVKTXUK (ORCPT ); Sun, 20 Nov 2005 18:20:10 -0500 Date: Mon, 21 Nov 2005 00:20:09 +0100 From: Adrian Bunk To: bcollins@debian.org, dan@dennedy.org Cc: linux1394-devel@lists.sourceforge.net, scjody@steamballoon.com, linux-kernel@vger.kernel.org, stable@kernel.org Subject: [2.6 patch] drivers/ieee1394/raw1394.c: fix a NULL pointer dereference Message-ID: <20051120232009.GH16060@stusta.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org The coverity checker spotted that this was a NULL pointer dereference in the "if (copy_from_user(...))" case. Signed-off-by: Adrian Bunk --- linux-2.6.15-rc1-mm2-full/drivers/ieee1394/raw1394.c.old 2005-11-20 22:08:57.000000000 +0100 +++ linux-2.6.15-rc1-mm2-full/drivers/ieee1394/raw1394.c 2005-11-20 22:09:34.000000000 +0100 @@ -2166,7 +2166,8 @@ } } } - kfree(cache->filled_head); + if(cache->filled_head) + kfree(cache->filled_head); kfree(cache); if (ret >= 0) {