Segmentation fault on a particular env variable with Apple Silicon

[thomscoder]

Version

0.1.2

Platform

Darwin Kernel Version 21.5.0

What steps will reproduce the bug?

• created a React App with bun create react ./react-app
• created a .env file and put WELCOME_MESSAGE=ReactAppWithBun
• {process.env.WELCOME_MESSAGE} in App.jsx

The bug (?) only presents with that particular env variable. Works well with every other variables I've tested.

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

All the time in React App created with bun create react

What is the expected behavior?

Correctly displaying the values of the env variables.

What do you see instead?

Segmentation fault error

SegmentationFault at 1929388152


–––– bun meta ––––
Bun v0.1.2 macOS Silicon 21.5.0
DevCommand: single_page_app_routing fast_refresh bun_bun public_folder dotenv 
Elapsed: 3372ms | User: 7ms | Sys: 16ms
RSS: 9.52MB | Peak: 9.52MB | Commit: 71.34MB | Faults: 268
–––– bun meta ––––

Additional information

Just adding one letter at the end of the env variable everything turns to work normally

[HarishTeens]

After a rigorous process of hit and trial. This issue seems to appear only when the Key and the Value of the env is exactly of length 15

[Jarred-Sumner]

Super interesting

[thomscoder]

After a rigorous process of hit and trial. This issue seems to appear only when the Key and the Value of the env is exactly of length 15

I confirm.
Tried with env set = HelloFromBun!!! or any other 15 characters string and it crashed with segmentation fault error.

Only in scaffolded React project. Works fine in a basic:

WELCOME_MESSAGE=HelloFromBun!!!

export default {
 port: 3000,
 fetch(request) {
   return new Response(process.env.WELCOME_MESSAGE); 
 }
}

for example

[whiny-nil]

I'm also getting segfault errors if there are blank lines in any .env files.

[Johann01]

Exactly the same issue, with .env, just containing:

NOTION_TOKEN=[REDACTED]

If the string content has a different length, it works, but not with that combination.

[Electroid]

Confirming this is still an issue. Here's the reproduction:

// .env
WELCOME_MESSAGE=ReactAppWithBun

// index.js
export default {
  port: 3000,
  fetch(request) {
    return new Response(process.env.WELCOME_MESSAGE); 
  }
}

Output:

SegmentationFault at 0x753700F300000000


----- bun meta -----
Bun v0.2.2 (88ddb103) macOS Silicon 21.5.0
RunCommand: bun_bun dotenv 
Elapsed: 25ms | User: 18ms | Sys: 7ms
RSS: 20.61MB | Peak: 20.61MB | Commit: 67.11MB | Faults: 5
----- bun meta -----

[Jarred-Sumner]

I'm not able to reproduce this as of v0.4.0+ (tested 0.4, 0.5, 0.5.7, and 0.5.8), but please leave a comment/reopen if still happening