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| author | Ricardo Ribalda <ribalda@chromium.org> | 2022-09-20 16:04:55 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-11 16:32:00 +0100 |
| commit | 2914259fcea23971c6fed8b2618d3a729a78c365 (patch) | |
| tree | 49e4e612289722c8adaad1e3a575d1d861078288 | |
| parent | 00f5e1edb479abb2f1b24acb5198149e4f2132fc (diff) | |
| download | linux-2914259fcea23971c6fed8b2618d3a729a78c365.tar.gz linux-2914259fcea23971c6fed8b2618d3a729a78c365.tar.bz2 linux-2914259fcea23971c6fed8b2618d3a729a78c365.zip | |
media: uvcvideo: Handle cameras with invalid descriptors
[ Upstream commit 41ddb251c68ac75c101d3a50a68c4629c9055e4c ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -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 f2457953f27c..0d5aaaa7e2d9 100644 --- a/drivers/media/usb/uvc/uvc_entity.c +++ b/drivers/media/usb/uvc/uvc_entity.c @@ -42,7 +42,7 @@ 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) |