diff options
| author | Ricardo Ribalda <ribalda@chromium.org> | 2022-09-20 16:04:55 +0200 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2023-01-15 23:45:08 +0200 |
| commit | 41ddb251c68ac75c101d3a50a68c4629c9055e4c (patch) | |
| tree | 09c82cfe4eb3755b73fe84a99dedfdee846a5b1a /drivers/media/usb | |
| parent | 50459f103edfe47c9a599d766a850ef6014936c5 (diff) | |
media: uvcvideo: Handle cameras with invalid descriptors
If the source entity does not contain any pads, do not create a link.
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'drivers/media/usb')
| -rw-r--r-- | drivers/media/usb/uvc/uvc_entity.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/usb/uvc/uvc_entity.c b/drivers/media/usb/uvc/uvc_entity.c index 7c4d2f93d351..cc68dd24eb42 100644 --- a/drivers/media/usb/uvc/uvc_entity.c +++ b/drivers/media/usb/uvc/uvc_entity.c @@ -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) |