RenderFrameDevToolsAgentHost* FindAgentHost(FrameTreeNode* frame_tree_node) {
  if (!g_agent_host_instances.IsCreated())
    return nullptr;
  auto it = g_agent_host_instances.Get().find(frame_tree_node);
  return it == g_agent_host_instances.Get().end() ? nullptr : it->second;
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.