Buffer() deprecation check throws TypeError: Cannot read properties of null (reading '0') inside new Promise() #54296
Description
Version
First seen in v20.15; No issue in v20.14
Platform
Microsoft Windows NT 10.0.19045.0 x64
Subsystem
No response
What steps will reproduce the bug?
Just create a file and run:
new Promise(() => {
new Buffer(0)
})How often does it reproduce? Is there a required condition?
It requires Node.js ≥ v20.15. Node.js v20.14 is working fine.
What is the expected behavior? Why is that the expected behavior?
It should not throw.
What do you see instead?
node:internal/util:508
filename[0] !== '/' &&
^
TypeError: Cannot read properties of null (reading '0')
at isInsideNodeModules (node:internal/util:508:17)
at showFlaggedDeprecation (node:buffer:178:8)
at new Buffer (node:buffer:266:3)
at file:///Users/hyrious/test.js:5:3
at new Promise (<anonymous>)
at file:///Users/hyrious/test.js:4:1
at ModuleJob.run (node:internal/modules/esm/module_job:222:25)
at async ModuleLoader.import (node:internal/modules/esm/loader:316:24)
at async asyncRunEntryPointWithESMLoader (node:internal/modules/run_main:123:5)
Additional information
The error occurs only when inside the callback of new Promise(). I looked at devtools and it says one item inside the stack has getFileName() → null.