From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4AE8CC43460 for ; Wed, 7 Apr 2021 08:12:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 20963613A0 for ; Wed, 7 Apr 2021 08:12:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244593AbhDGIMP (ORCPT ); Wed, 7 Apr 2021 04:12:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:43034 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233700AbhDGIMO (ORCPT ); Wed, 7 Apr 2021 04:12:14 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5F81661005; Wed, 7 Apr 2021 08:12:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1617783125; bh=5xCNy4QfUw3ES0cgMU08yqKeETxx/b2U9wCfdQqFrLI=; h=Subject:To:From:Date:From; b=rhQRogx/x5VIGnFNUoMGGjed/lSB3VlQdrNFEKTz0UmYKNcX9tOceq5bD/nMMs1Z7 RUhvD8zkGcIyH/ABgWEnuYL4Sa4ojyuNB0MeQ0jkqcsl/fGIEC6F+Cma/oTkAu/ubR 1+WxTc8ghx8IkcS2PhmUpV4/sslQQH3TwGcbnnbU= Subject: patch "iio: inv_mpu6050: Fully validate gyro and accel scale writes" added to staging-testing To: lars@metafoo.de, Jonathan.Cameron@huawei.com, Stable@vger.kernel.org, jmaneyrol@invensense.com From: Date: Wed, 07 Apr 2021 10:09:21 +0200 Message-ID: <1617782961239139@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org This is a note to let you know that I've just added the patch titled iio: inv_mpu6050: Fully validate gyro and accel scale writes to my staging git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git in the staging-testing branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will be merged to the staging-next branch sometime soon, after it passes testing, and the merge window is open. If you have any questions about this process, please let me know. >From e09fe9135399807b8397798a53160e055dc6c29f Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 5 Apr 2021 13:44:41 +0200 Subject: iio: inv_mpu6050: Fully validate gyro and accel scale writes When setting the gyro or accelerometer scale the inv_mpu6050 driver ignores the integer part of the value. As a result e.g. all of 0.13309, 1.13309, 12345.13309, ... are accepted as a valid gyro scale and 0.13309 is the scale that gets set in all those cases. Make sure to check that the integer part of the scale value is 0 and reject it otherwise. Fixes: 09a642b78523 ("Invensense MPU6050 Device Driver.") Signed-off-by: Lars-Peter Clausen Acked-by: Jean-Baptiste Maneyrol Link: https://lore.kernel.org/r/20210405114441.24167-1-lars@metafoo.de Cc: Signed-off-by: Jonathan Cameron --- drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c index cda7b48981c9..6244a07048df 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c @@ -731,12 +731,16 @@ inv_mpu6050_read_raw(struct iio_dev *indio_dev, } } -static int inv_mpu6050_write_gyro_scale(struct inv_mpu6050_state *st, int val) +static int inv_mpu6050_write_gyro_scale(struct inv_mpu6050_state *st, int val, + int val2) { int result, i; + if (val != 0) + return -EINVAL; + for (i = 0; i < ARRAY_SIZE(gyro_scale_6050); ++i) { - if (gyro_scale_6050[i] == val) { + if (gyro_scale_6050[i] == val2) { result = inv_mpu6050_set_gyro_fsr(st, i); if (result) return result; @@ -767,13 +771,17 @@ static int inv_write_raw_get_fmt(struct iio_dev *indio_dev, return -EINVAL; } -static int inv_mpu6050_write_accel_scale(struct inv_mpu6050_state *st, int val) +static int inv_mpu6050_write_accel_scale(struct inv_mpu6050_state *st, int val, + int val2) { int result, i; u8 d; + if (val != 0) + return -EINVAL; + for (i = 0; i < ARRAY_SIZE(accel_scale); ++i) { - if (accel_scale[i] == val) { + if (accel_scale[i] == val2) { d = (i << INV_MPU6050_ACCL_CONFIG_FSR_SHIFT); result = regmap_write(st->map, st->reg->accl_config, d); if (result) @@ -814,10 +822,10 @@ static int inv_mpu6050_write_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_SCALE: switch (chan->type) { case IIO_ANGL_VEL: - result = inv_mpu6050_write_gyro_scale(st, val2); + result = inv_mpu6050_write_gyro_scale(st, val, val2); break; case IIO_ACCEL: - result = inv_mpu6050_write_accel_scale(st, val2); + result = inv_mpu6050_write_accel_scale(st, val, val2); break; default: result = -EINVAL; -- 2.31.1