From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261476AbUL2IBr (ORCPT ); Wed, 29 Dec 2004 03:01:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261471AbUL2HkG (ORCPT ); Wed, 29 Dec 2004 02:40:06 -0500 Received: from smtp802.mail.sc5.yahoo.com ([66.163.168.181]:13999 "HELO smtp802.mail.sc5.yahoo.com") by vger.kernel.org with SMTP id S261394AbUL2Hd0 (ORCPT ); Wed, 29 Dec 2004 02:33:26 -0500 From: Dmitry Torokhov To: Vojtech Pavlik Subject: [PATCH 5/16] evdev: return -EINVAL if read buffer is too small Date: Wed, 29 Dec 2004 02:22:23 -0500 User-Agent: KMail/1.6.2 Cc: linux-input@atrey.karlin.mff.cuni.cz, LKML References: <200412290217.36282.dtor_core@ameritech.net> <200412290220.50228.dtor_core@ameritech.net> <200412290221.33869.dtor_core@ameritech.net> In-Reply-To: <200412290221.33869.dtor_core@ameritech.net> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Message-Id: <200412290222.25300.dtor_core@ameritech.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org =================================================================== ChangeSet@1.1957.1.32, 2004-11-12 01:28:33-05:00, dtor_core@ameritech.net Input: evdev - return -EINVAL from evdev_read if read buffer is too small. Based on the patch by James Lamanna. Signed-off-by: Dmitry Torokhov evdev.c | 3 +++ 1 files changed, 3 insertions(+) =================================================================== diff -Nru a/drivers/input/evdev.c b/drivers/input/evdev.c --- a/drivers/input/evdev.c 2004-12-29 01:47:32 -05:00 +++ b/drivers/input/evdev.c 2004-12-29 01:47:32 -05:00 @@ -169,6 +169,9 @@ struct evdev_list *list = file->private_data; int retval; + if (count < sizeof(struct input_event)) + return -EINVAL; + if (list->head == list->tail && list->evdev->exist && (file->f_flags & O_NONBLOCK)) return -EAGAIN;