usb: sanity check setup_index+setup_len in post_load

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-08-28 17:09:30 +02:00 · 2013-08-28 17:09:30 +02:00 · c60174e847
parent 94c2b6aff4
commit c60174e847
1 changed files with 4 additions and 0 deletions
--- a/hw/usb/bus.c
+++ b/hw/usb/bus.c
@ -47,6 +47,10 @@ static int usb_device_post_load(void *opaque, int version_id)
    } else {
        dev->attached = 1;
    }
+    if (dev->setup_index >= sizeof(dev->data_buf) ||
+        dev->setup_len >= sizeof(dev->data_buf)) {
+        return -EINVAL;
+    }
    return 0;
 }