process.stdout may memleak if write file failed.

[killagu]

Version

= 14

Platform

Linux::5.15.49-linuxkit

Subsystem

fs

What steps will reproduce the bug?

Create a container with disk size is 1m.

docker run --tmpfs /run:rw,noexec,nosuid,size=1024k --entrypoint bash -ti --rm node:20-buster

Create a file named test.js.

// test.js
const util = require('util');
const fs = require('fs');
const crypto = require('crypto');

(async () => {
	while (true) {
		try {
			const content = util.format('%s%s\n', new Date(), crypto.randomBytes(1024 * 100).toString('hex'));
			process.stdout.write(content, err => {
				if (err) {
					console.error(err);
				}
			});
		} catch (e) {
			// will print 
			// write error:  Error: ENOSPC: no space left on device, write
			console.error('write error: ', e);
		}
		await new Promise((resolve) => {
			setTimeout(resolve, 100);
		});
	}
})();

Run it and rotate stdout to a file in the tmpfs.

node test.js > /run/test.log

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

No response

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

No response

What do you see instead?

It's the memory leak.

Additional information

No response