[BUG] panic(main thread): Segmentation fault at address 0x4469BAB7D20

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Bun Canary v1.3.9-canary.62 (6d2fefba) Windows x64 (baseline)
Windows v.win11_dt
CPU: sse42 avx avx2
Args: "claude" "--dangerously-skip-permissions" "--resume"
Features: Bun.stderr(2) Bun.stdin(2) Bun.stdout(2) abort_signal(3538) fetch(46298) jsc spawn(11901) standalone_executable process_dlopen(3) yaml_parse(356)
Builtins: "bun:main" "node:assert" "node:async_hooks" "node:buffer" "node:child_process" "node:constants" "node:crypto" "node:events" "node:fs" "node:fs/promises" "node:http" "node:https" "node:module" "node:net" "node:os" "node:path" "node:path/posix" "node:path/win32" "node:perf_hooks" "node:process" "node:stream" "node:timers/promises" "node:tls" "node:tty" "node:url" "node:util" "node:zlib" "node:worker_threads" "undici" "ws" "node:http2"
Elapsed: 55063493ms | User: 4489671ms | Sys: 834218ms
RSS: 0.77GB | Peak: 1.99GB | Commit: 5.25GB | Faults: 30798010 | Machine: 16.89GB

panic(main thread): Segmentation fault at address 0x4469BAB7D20
oh no: Bun has crashed. This indicates a bug in Bun, not your code.

To send a redacted crash report to Bun's team,
please file a GitHub issue using the link below:

https://bun.report/1.3.9/e_26d2fefbmgkgEuhogCsppmqCyiu4RglgkvB0to7uB___A2skChuhyqkD

<img width="1658" height="502" alt="Image" src="https://github.com/user-attachments/assets/94dc03a4-a9f3-41ac-ab60-f5a742c05d40" />

<img width="434" height="33" alt="Image" src="https://github.com/user-attachments/assets/1ca883ed-87bb-418a-85a8-82e9f7f83485" />

What Should Happen?

no crash

Error Messages/Logs

Steps to Reproduce

I just used Claude Code to solve some issues. When Claude is running, it shows a segmentation fault, so I repport this segmentation fault issue.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.42 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_