5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Javier Carrasco javier.carrasco.cruz@gmail.com
commit 6ae053113f6a226a2303caa4936a4c37f3bfff7b upstream.
The 'buffer' local array is used to push data to user space from a triggered buffer, but it does not set values for inactive channels, as it only uses iio_for_each_active_channel() to assign new values.
Initialize the array to zero before using it to avoid pushing uninitialized information to userspace.
Cc: stable@vger.kernel.org Fixes: c3a23ecc0901 ("iio: imu: kmx61: Add support for data ready triggers") Signed-off-by: Javier Carrasco javier.carrasco.cruz@gmail.com Link: https://patch.msgid.link/20241125-iio_memset_scan_holes-v1-5-0cb6e98d895c@gm... Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/iio/imu/kmx61.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iio/imu/kmx61.c +++ b/drivers/iio/imu/kmx61.c @@ -1198,7 +1198,7 @@ static irqreturn_t kmx61_trigger_handler struct kmx61_data *data = kmx61_get_data(indio_dev); int bit, ret, i = 0; u8 base; - s16 buffer[8]; + s16 buffer[8] = { };
if (indio_dev == data->acc_indio_dev) base = KMX61_ACC_XOUT_L;