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-rw-r--r--hw/virtio/virtio-rng.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/hw/virtio/virtio-rng.c b/hw/virtio/virtio-rng.c
index 1356aca8d6..7c5a675674 100644
--- a/hw/virtio/virtio-rng.c
+++ b/hw/virtio/virtio-rng.c
@@ -181,7 +181,13 @@ static void virtio_rng_device_realize(DeviceState *dev, Error **errp)
vrng->vq = virtio_add_queue(vdev, 8, handle_input);
- assert(vrng->conf.max_bytes <= INT64_MAX);
+ /* Workaround: Property parsing does not enforce unsigned integers,
+ * So this is a hack to reject such numbers. */
+ if (vrng->conf.max_bytes > INT64_MAX) {
+ error_set(errp, QERR_INVALID_PARAMETER_VALUE, "max-bytes",
+ "a non-negative integer below 2^63");
+ return;
+ }
vrng->quota_remaining = vrng->conf.max_bytes;
vrng->rate_limit_timer = timer_new_ms(QEMU_CLOCK_VIRTUAL,