The 'scan' local struct is used to push data to user space from a triggered buffer, but it has a hole between the sample (unsigned int) and the timestamp. This hole is never initialized.
Initialize the struct to zero before using it to avoid pushing uninitialized information to userspace.
Cc: stable@vger.kernel.org Fixes: a9306887eba4 ("iio: adc: ti-ads1119: Add driver") Signed-off-by: Javier Carrasco javier.carrasco.cruz@gmail.com --- drivers/iio/adc/ti-ads1119.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/iio/adc/ti-ads1119.c b/drivers/iio/adc/ti-ads1119.c index e9d9d4d46d38..2615a275acb3 100644 --- a/drivers/iio/adc/ti-ads1119.c +++ b/drivers/iio/adc/ti-ads1119.c @@ -506,6 +506,8 @@ static irqreturn_t ads1119_trigger_handler(int irq, void *private) unsigned int index; int ret;
+ memset(&scan, 0, sizeof(scan)); + if (!iio_trigger_using_own(indio_dev)) { index = find_first_bit(indio_dev->active_scan_mask, iio_get_masklength(indio_dev));