usb-host: add range checks for usb-host parameters

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
qemu · Jun 13, 2014 · f3cda6e · f3cda6e
1 parent 2a2c483
commit f3cda6e
Showing 1 changed file with 13 additions and 0 deletions.
diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c
@@ -952,6 +952,19 @@ static int usb_host_initfn(USBDevice *udev)
 {
     USBHostDevice *s = USB_HOST_DEVICE(udev);
 
+    if (s->match.vendor_id > 0xffff) {
+        error_report("vendorid out of range");
+        return -1;
+    }
+    if (s->match.product_id > 0xffff) {
+        error_report("productid out of range");
+        return -1;
+    }
+    if (s->match.addr > 127) {
+        error_report("hostaddr out of range");
+        return -1;
+    }
+
     loglevel = s->loglevel;
     udev->flags |= (1 << USB_DEV_FLAG_IS_HOST);
     udev->auto_attach = 0;