From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , Jonathan Cameron Subject: [PATCH 4.1 37/86] iio: accel: sca3000: memory corruption in sca3000_read_first_n_hw_rb() Date: Fri, 6 Nov 2015 11:22:36 -0800 Message-Id: <20151106192207.205575579@linuxfoundation.org> In-Reply-To: <20151106192205.351595349@linuxfoundation.org> References: <20151106192205.351595349@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Sender: linux-kernel-owner@vger.kernel.org List-ID: 4.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter commit eda7d0f38aaf50dbb2a2de15e8db386c4f6f65fc upstream. "num_read" is in byte units but we are write u16s so we end up write twice as much as intended. Signed-off-by: Dan Carpenter Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/staging/iio/accel/sca3000_ring.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/staging/iio/accel/sca3000_ring.c +++ b/drivers/staging/iio/accel/sca3000_ring.c @@ -116,7 +116,7 @@ static int sca3000_read_first_n_hw_rb(st if (ret) goto error_ret; - for (i = 0; i < num_read; i++) + for (i = 0; i < num_read / sizeof(u16); i++) *(((u16 *)rx) + i) = be16_to_cpup((__be16 *)rx + i); if (copy_to_user(buf, rx, num_read))