media: uvcvideo: Add sanity check to uvc_ioctl_xu_ctrl_map

JIRA: https://issues.redhat.com/browse/RHEL-78934

commit 990262f
Author: Ricardo Ribalda <ribalda@chromium.org>
Date: Mon, 3 Feb 2025 11:55:51 +0000

  Do not process unknown data types.

  Tested-by: Yunke Cao <yunkec@google.com>
  Reviewed-by: Hans de Goede <hdegoede@redhat.com>
  Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
  Link: https://lore.kernel.org/r/20250203-uvc-roi-v17-15-5900a9fed613@chromium.org
  Signed-off-by: Hans de Goede <hdegoede@redhat.com>
  Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>

Signed-off-by: Desnes Nunes <desnesn@redhat.com>

Author: Desnes Nunes

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;