diff options
| author | Johan Hovold <johan@kernel.org> | 2019-12-02 11:56:10 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-21 12:41:50 +0300 |
| commit | 70a7762bb7dc31007288b1f5ded3fa4266356fe1 (patch) | |
| tree | fcb4c0f51a5a1f46d173e757a67df642ef2560fd /drivers/isdn/gigaset | |
| parent | 6ac38d527c072469057559ed153c58d8686418c5 (diff) | |
| download | linux-70a7762bb7dc31007288b1f5ded3fa4266356fe1.tar.xz | |
staging: gigaset: add endpoint-type sanity check
commit ed9ed5a89acba51b82bdff61144d4e4a4245ec8a upstream.
Add missing endpoint-type sanity checks to probe.
This specifically prevents a warning in USB core on URB submission when
fuzzing USB descriptors.
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191202085610.12719-4-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/isdn/gigaset')
| -rw-r--r-- | drivers/isdn/gigaset/usb-gigaset.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/isdn/gigaset/usb-gigaset.c b/drivers/isdn/gigaset/usb-gigaset.c index 42e825d87029..aee4880f972f 100644 --- a/drivers/isdn/gigaset/usb-gigaset.c +++ b/drivers/isdn/gigaset/usb-gigaset.c @@ -708,6 +708,12 @@ static int gigaset_probe(struct usb_interface *interface, endpoint = &hostif->endpoint[0].desc; + if (!usb_endpoint_is_bulk_out(endpoint)) { + dev_err(&interface->dev, "missing bulk-out endpoint\n"); + retval = -ENODEV; + goto error; + } + buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); ucs->bulk_out_size = buffer_size; ucs->bulk_out_epnum = usb_endpoint_num(endpoint); @@ -727,6 +733,12 @@ static int gigaset_probe(struct usb_interface *interface, endpoint = &hostif->endpoint[1].desc; + if (!usb_endpoint_is_int_in(endpoint)) { + dev_err(&interface->dev, "missing int-in endpoint\n"); + retval = -ENODEV; + goto error; + } + ucs->busy = 0; ucs->read_urb = usb_alloc_urb(0, GFP_KERNEL); |