diff options
Diffstat (limited to 'drivers/usb/core/urb.c')
| -rw-r--r-- | drivers/usb/core/urb.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 357b149b20d3..30727729a44c 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -407,6 +407,15 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) return -ENOEXEC; is_out = !(setup->bRequestType & USB_DIR_IN) || !setup->wLength; + dev_WARN_ONCE(&dev->dev, (usb_pipeout(urb->pipe) != is_out), + "BOGUS control dir, pipe %x doesn't match bRequestType %x\n", + urb->pipe, setup->bRequestType); + if (le16_to_cpu(setup->wLength) != urb->transfer_buffer_length) { + dev_dbg(&dev->dev, "BOGUS control len %d doesn't match transfer length %d\n", + le16_to_cpu(setup->wLength), + urb->transfer_buffer_length); + return -EBADR; + } } else { is_out = usb_endpoint_dir_out(&ep->desc); } |