diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-05-09 07:47:14 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-05-09 07:58:48 -0300 |
| commit | a5cdf7364020a61375af3c8aa23e09181f5c2c6c (patch) | |
| tree | 6a7aacf0e34c69ae57200ba59eafda251b3e0e80 /drivers/usb/usbip/usbip_common.c | |
| parent | 394569928e2f17dff4ae367ac700048138e318c7 (diff) | |
Linux-libre 4.5.3-gnupck-4.5.3-gnu
Diffstat (limited to 'drivers/usb/usbip/usbip_common.c')
| -rw-r--r-- | drivers/usb/usbip/usbip_common.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/usbip/usbip_common.c b/drivers/usb/usbip/usbip_common.c index facaaf003..e40da7759 100644 --- a/drivers/usb/usbip/usbip_common.c +++ b/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); |