Check IP address size when deserializing IPEndPoint.

content/public/common/common_param_traits.cc

Index: content/public/common/common_param_traits.cc
diff --git a/content/public/common/common_param_traits.cc b/content/public/common/common_param_traits.cc
index 7c47ab53907ae1b3c38154e6392244cdedff7fae..474fb7a0d523f129f0c13ac31e398a2af91ab86d 100644
--- a/content/public/common/common_param_traits.cc
+++ b/content/public/common/common_param_traits.cc
@@ -120,6 +120,11 @@ bool ParamTraits<net::IPEndPoint>::Read(const Message* m, PickleIterator* iter,
   int port;
   if (!ReadParam(m, iter, &address) || !ReadParam(m, iter, &port))
     return false;
+  if (address.size() &&
+      address.size() != net::kIPv4AddressSize &&
+      address.size() != net::kIPv6AddressSize) {
+    return false;
+  }
   *p = net::IPEndPoint(address, port);
   return true;
 }