diff --git a/src/net.h b/src/net.h
--- a/src/net.h
+++ b/src/net.h
@@ -684,8 +684,6 @@
     virtual void Reset() = 0;
     // returns true if the current deserialization is complete
     virtual bool Complete() const = 0;
-    // checks if the potential message in deserialization is oversized
-    virtual bool OversizedMessageDetected(const Config &config) const = 0;
     // set the serialization context version
     virtual void SetVersion(int version) = 0;
     // read and deserialize data
@@ -748,9 +746,6 @@
         hdrbuf.SetVersion(nVersionIn);
         vRecv.SetVersion(nVersionIn);
     }
-    bool OversizedMessageDetected(const Config &config) const {
-        return (in_data && hdr.IsOversized(config));
-    }
     int Read(const Config &config, const char *pch, uint32_t nBytes) {
         return in_data ? readData(pch, nBytes)
                        : readHeader(config, pch, nBytes);
diff --git a/src/net.cpp b/src/net.cpp
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -586,14 +586,6 @@
             return false;
         }
 
-        if (m_deserializer->OversizedMessageDetected(config)) {
-            LogPrint(BCLog::NET,
-                     "Oversized message from peer=%i, disconnecting\n",
-                     GetId());
-            m_deserializer->Reset();
-            return false;
-        }
-
         pch += handled;
         nBytes -= handled;
 
diff --git a/test/functional/p2p_invalid_messages.py b/test/functional/p2p_invalid_messages.py
--- a/test/functional/p2p_invalid_messages.py
+++ b/test/functional/p2p_invalid_messages.py
@@ -92,11 +92,10 @@
         msg_over_size = msg_unrecognized(str_data="b" * (valid_data_limit + 1))
         assert len(msg_over_size.serialize()) == (msg_limit + 1)
 
-        with node.assert_debug_log(["Oversized header detected"]):
-            # An unknown message type (or *any* message type) over
-            # MAX_PROTOCOL_MESSAGE_LENGTH should result in a disconnect.
-            node.p2p.send_message(msg_over_size)
-            node.p2p.wait_for_disconnect(timeout=4)
+        # An unknown message type (or *any* message type) over
+        # MAX_PROTOCOL_MESSAGE_LENGTH should result in a disconnect.
+        node.p2p.send_message(msg_over_size)
+        node.p2p.wait_for_disconnect(timeout=4)
 
         node.disconnect_p2ps()
         conn = node.add_p2p_connection(P2PDataStore())