If the source entity does not contain any pads, do not create a link. Reported-by: syzbot <syzkaller@xxxxxxxxxxxxxxxx> Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx> --- drivers/media/usb/uvc/uvc_entity.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/usb/uvc/uvc_entity.c b/drivers/media/usb/uvc/uvc_entity.c index 7c4d2f93d351..1f730cb72e58 100644 --- a/drivers/media/usb/uvc/uvc_entity.c +++ b/drivers/media/usb/uvc/uvc_entity.c @@ -43,7 +43,7 @@ static int uvc_mc_create_links(struct uvc_video_chain *chain, source = (UVC_ENTITY_TYPE(remote) == UVC_TT_STREAMING) ? (remote->vdev ? &remote->vdev->entity : NULL) : &remote->subdev.entity; - if (source == NULL) + if (source == NULL || source->num_pads == 0) continue; remote_pad = remote->num_pads - 1; -- 2.35.1.1021.g381101b075-goog
