robobun
c8cb7713fc
Fix Windows crash in process.title when console title is empty ( #23184 )
...
## Summary
Fixes a segmentation fault on Windows 11 when accessing `process.title`
in certain scenarios (e.g., when fetching system information or making
Discord webhook requests).
## Root Cause
The crash occurred in libuv's `uv_get_process_title()` at `util.c:413`
in the `strlen()` call. The issue is that `uv__get_process_title()`
could return success (0) but leave `process_title` as NULL in edge cases
where:
1. `GetConsoleTitleW()` returns an empty string
2. `uv__convert_utf16_to_utf8()` succeeds but doesn't allocate memory
for the empty string
3. The subsequent `assert(process_title)` doesn't catch this in release
builds
4. `strlen(process_title)` crashes with a null pointer dereference
## Changes
Added defensive checks in `BunProcess.cpp`:
1. Initialize the title buffer to an empty string before calling
`uv_get_process_title()`
2. Check if the buffer is empty after the call returns
3. Fall back to "bun" if the title is empty or the call fails
## Testing
Added regression test in `test/regression/issue/23183.test.ts` that
verifies:
- `process.title` doesn't crash when accessed
- Returns a valid string (either the console title or "bun")
Fixes #23183
🤖 Generated with [Claude Code](https://claude.com/claude-code )
Co-authored-by: Claude Bot <claude-bot@bun.sh >
Co-authored-by: Claude <noreply@anthropic.com >
2025-10-03 02:54:23 -07:00
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