diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index f5a4581302f48413738c11805d7adb41cd44df60..dd8873a752dd469ae82395d62e92b337320be03f 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -1107,6 +1107,8 @@ static int iio_device_add_info_mask_type_avail(struct iio_dev *indio_dev,
 	char *avail_postfix;
 
 	for_each_set_bit(i, infomask, sizeof(*infomask) * 8) {
+		if (i >= ARRAY_SIZE(iio_chan_info_postfix))
+			return -EINVAL;
 		avail_postfix = kasprintf(GFP_KERNEL,
 					  "%s_available",
 					  iio_chan_info_postfix[i]);