net: cap aggregate ZMQ receive size

2026-11-15 04:43:53 +01:00 · 2026-06-10 19:49:23 +02:00
parent a8478d21b2
commit d72cd7fc16
3 changed files with 10 additions and 2 deletions
@@ -150,6 +150,12 @@ namespace zmq
                    if ((last = zmq_msg_recv(part.handle(), socket, flags)) < 0)
                        return last;

+                    if (max_message_size < payload.size() ||
+                        max_message_size - payload.size() < part.size())
+                    {
+                        errno = EMSGSIZE;
+                        return -1;
+                    }
                    payload.append(part.data(), part.size());
                    if (!zmq_msg_more(part.handle()))
                        break;