From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755356Ab3GBLIZ (ORCPT ); Tue, 2 Jul 2013 07:08:25 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:36261 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755038Ab3GBLIW (ORCPT ); Tue, 2 Jul 2013 07:08:22 -0400 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Ferruh Yigit , Dmitry Torokhov , Luis Henriques Subject: [PATCH 26/50] Input: cyttsp - fix memcpy size param Date: Tue, 2 Jul 2013 12:07:14 +0100 Message-Id: <1372763258-20664-27-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1372763258-20664-1-git-send-email-luis.henriques@canonical.com> References: <1372763258-20664-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.5.7.16 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Ferruh Yigit commit d2983cdb480157f637df07723f28aaa657b1080d upstream. memcpy param is wrong because of offset in bl_cmd, this may corrupt the stack which may cause a crash. Tested-by: Ferruh Yigit on TMA300-DVK Signed-off-by: Ferruh Yigit Acked-by: Javier Martinez Canillas Signed-off-by: Dmitry Torokhov Signed-off-by: Luis Henriques --- drivers/input/touchscreen/cyttsp_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/touchscreen/cyttsp_core.c b/drivers/input/touchscreen/cyttsp_core.c index f030d9e..3f505d5 100644 --- a/drivers/input/touchscreen/cyttsp_core.c +++ b/drivers/input/touchscreen/cyttsp_core.c @@ -133,7 +133,7 @@ static int cyttsp_exit_bl_mode(struct cyttsp *ts) memcpy(bl_cmd, bl_command, sizeof(bl_command)); if (ts->pdata->bl_keys) memcpy(&bl_cmd[sizeof(bl_command) - CY_NUM_BL_KEYS], - ts->pdata->bl_keys, sizeof(bl_command)); + ts->pdata->bl_keys, CY_NUM_BL_KEYS); error = ttsp_write_block_data(ts, CY_REG_BASE, sizeof(bl_cmd), bl_cmd); -- 1.8.1.2