diff --git a/drivers/hid/hid-roccat-isku.c b/drivers/hid/hid-roccat-isku.c
index 93a49c93ae8c..ef1ec9ccaa82 100644
--- a/drivers/hid/hid-roccat-isku.c
+++ b/drivers/hid/hid-roccat-isku.c
@@ -411,6 +411,9 @@ static int isku_raw_event(struct hid_device *hdev,
 	if (isku == NULL)
 		return 0;
 
+	if (size < sizeof(struct isku_report_button))
+		return 0;
+
 	isku_keep_values_up_to_date(isku, data);
 
 	if (isku->roccat_claimed)