Do not process unknown data types.
Tested-by: Yunke Cao <yunkec@xxxxxxxxxx>
Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
---
drivers/media/usb/uvc/uvc_v4l2.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c
index 41430720ed47..d56f482723d3 100644
--- a/drivers/media/usb/uvc/uvc_v4l2.c
+++ b/drivers/media/usb/uvc/uvc_v4l2.c
@@ -108,6 +108,12 @@ static int uvc_ioctl_xu_ctrl_map(struct uvc_video_chain *chain,
struct uvc_control_mapping *map;
int ret;
+ if (xmap->data_type > UVC_CTRL_DATA_TYPE_BITMASK) {
+ uvc_dbg(chain->dev, CONTROL,
+ "Unsupported UVC data type %u\n", xmap->data_type);
+ return -EINVAL;
+ }
+
map = kzalloc(sizeof(*map), GFP_KERNEL);
if (map == NULL)
return -ENOMEM;
--
2.48.1.362.g079036d154-goog
