[BUG] Segmentation fault

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?

2.1.140 installed on Ubuntu 24.04.4 immediately segfaults

Reverting to 2.1.139 all seems to work

What Should Happen?

I should start as normal.

Error Messages/Logs

$ claude
Segmentation fault (core dumped)

$ ldd --version | head -1
ldd (Ubuntu GLIBC 2.39-0ubuntu8.7) 2.39
$ grep -m1 -ow avx /proc/cpuinfo
avx

Steps to Reproduce

Install fresh claude code - curl -fsSL https://claude.ai/install.sh | bash
Run claude
Observe segfault error message

claude --help also immediately seg faults

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.139

Claude Code Version

Segmentation fault (core dumped)

Platform

AWS Bedrock

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Xterm

Additional Information

_No response_