• Version: tested on 4.4.7 and 5.10.0
• Platform: Linux 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt25-2 (2016-04-08) x86_64 GNU/Linux
• Subsystem: child_process and deps/uv/src/unix/core.c

Reproduce:

var cp = require('child_process')

cp.execSync('', { maxBuffer: Infinity })

node: ../deps/uv/src/unix/core.c:165: uv_close: Assertion `0' failed.
[1]    31628 abort      node index.js

Not that the async exec does not exert the same behaviour

var cp = require('child_process')

cp.exec('', { maxBuffer: Infinity })