socket.destroySoon causes two EventEmitter memory leaks when repetitively using it on a socket that is trying to connect

Version

v22.11.0

Platform

Darwin xxx.local 24.4.0 Darwin Kernel Version 24.4.0: Fri Apr 11 18:32:43 PDT 2025; root:xnu-11417.101.15~117/RELEASE_ARM64_T8103 arm64

Subsystem

net

What steps will reproduce the bug?

const { Socket } = require('node:net');

const socket = new Socket();
socket.on('error', (err) => {
  console.log(`error: ${err.code}`);
});
socket.on('connect', () => {
  console.log('connected');
});
socket.on('close', () => {
  console.log('closed');
});

setInterval(() => {
  socket.connect({ host: 'google.com', port: 5000 });
  setTimeout(() => {
    socket.destroySoon();
  }, 5);
}, 100);

How often does it reproduce? Is there a required condition?

It reproduces always. Port 5000 is chosen as it times out.

What is the expected behavior? Why is that the expected behavior?

Seeing an infinite stream of

error: ECANCELED
closed

log lines

What do you see instead?

error: ECANCELED
closed
error: ECANCELED
closed
error: ECANCELED
closed
error: ECANCELED
closed
error: ECANCELED
closed
(node:46138) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 finish listeners added to [Socket]. MaxListeners is 10. Use emitter.setMaxListeners() to increase limit
    at genericNodeError (node:internal/errors:983:15)
    at wrappedFn (node:internal/errors:537:14)
    at _addListener (node:events:592:17)
    at Socket.addListener (node:events:610:10)
    at Readable.on (node:internal/streams/readable:1128:35)
    at Socket.once (node:events:654:8)
    at Socket.destroySoon (node:net:795:10)
    at Timeout._onTimeout (/Users/robeverhardt/Downloads/test.js:17:12)
    at listOnTimeout (node:internal/timers:594:17)
    at process.processTimers (node:internal/timers:529:7)
error: ECANCELED
closed
error: ECANCELED
closed
error: ECANCELED
closed
error: ECANCELED
closed
(node:46138) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 connect listeners added to [Socket]. MaxListeners is 10. Use emitter.setMaxListeners() to increase limit
    at genericNodeError (node:internal/errors:983:15)
    at wrappedFn (node:internal/errors:537:14)
    at _addListener (node:events:592:17)
    at Socket.addListener (node:events:610:10)
    at Readable.on (node:internal/streams/readable:1128:35)
    at Socket.once (node:events:654:8)
    at Socket._final (node:net:525:17)
    at prefinish (node:internal/streams/writable:916:14)
    at finishMaybe (node:internal/streams/writable:930:5)
    at Writable.end (node:internal/streams/writable:845:5)

Additional information

No response

再現スクリプトと、スタックトレースで示されている node:net のエントリポイント、特に Socket.destroySoon と Socket._final から始めます。繰り返しキャンセルされる接続を再現し、その後、finish リスナーと connect リスナーがどのように追加・削除されるかを追跡します。シナリオで MaxListenersExceededWarning が発生しなくなり、回帰に対するカバレッジがあることを完了条件とします。