net: validate non-string host for socket.connect

Signed-off-by: Daeyeon Jeong <[email protected]>
PR-URL: #57198
Reviewed-By: James M Snell <[email protected]>

Author: daeyeon

lib/net.js

@@ -1311,6 +1311,8 @@ function lookupAndConnect(self, options) {
   const host = options.host || 'localhost';
   let { port, autoSelectFamilyAttemptTimeout, autoSelectFamily } = options;
 
+  validateString(host, 'options.host');
+
   if (localAddress && !isIP(localAddress)) {
     throw new ERR_INVALID_IP_ADDRESS(localAddress);
   }

test/parallel/test-net-connect-options-invalid.js

@@ -25,3 +25,15 @@ const net = require('net');
     });
   });
 }
+
+{
+  assert.throws(() => {
+    net.createConnection({
+      host: ['192.168.0.1'],
+      port: 8080,
+    });
+  }, {
+    code: 'ERR_INVALID_ARG_TYPE',
+    name: 'TypeError',
+  });
+}