diff options
Diffstat (limited to 'kernel/drivers/usb/usbip/usbip_common.c')
| -rw-r--r-- | kernel/drivers/usb/usbip/usbip_common.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/drivers/usb/usbip/usbip_common.c b/kernel/drivers/usb/usbip/usbip_common.c index facaaf003..e40da7759 100644 --- a/kernel/drivers/usb/usbip/usbip_common.c +++ b/kernel/drivers/usb/usbip/usbip_common.c @@ -741,6 +741,17 @@ int usbip_recv_xbuff(struct usbip_device *ud, struct urb *urb) if (!(size > 0)) return 0; + if (size > urb->transfer_buffer_length) { + /* should not happen, probably malicious packet */ + if (ud->side == USBIP_STUB) { + usbip_event_add(ud, SDEV_EVENT_ERROR_TCP); + return 0; + } else { + usbip_event_add(ud, VDEV_EVENT_ERROR_TCP); + return -EPIPE; + } + } + ret = usbip_recv(ud->tcp_socket, urb->transfer_buffer, size); if (ret != size) { dev_err(&urb->dev->dev, "recv xbuf, %d\n", ret); |