Commit 41ddb251 authored by Ricardo Ribalda's avatar Ricardo Ribalda Committed by Laurent Pinchart
Browse files

media: uvcvideo: Handle cameras with invalid descriptors 



If the source entity does not contain any pads, do not create a link.

Reported-by: default avatarsyzbot <syzkaller@googlegroups.com>
Signed-off-by: default avatarRicardo Ribalda <ribalda@chromium.org>
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
parent 50459f10

drivers/media/usb/uvc/uvc_entity.c

+1 −1
Original line number Diff line number Diff line
@@ -37,7 +37,7 @@ static int uvc_mc_create_links(struct uvc_video_chain *chain, 
			continue;



		remote = uvc_entity_by_id(chain->dev, entity->baSourceID[i]);

		if (remote == NULL)

		if (remote == NULL || remote->num_pads == 0)

			return -EINVAL;



		source = (UVC_ENTITY_TYPE(remote) == UVC_TT_STREAMING)