[BUG] Installer crash after system memory exhaustion on Ubuntu 25.10

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?

When I try to install Claude Code on my Ubuntu 25.10 system via the prescribed "curl -fsSL https://claude.ai/install.sh | bash" routine, the binary runs and displays "Installing Claude Code native build latest..." until it consumes all system RAM and the system crashes or the installer is terminated. This is on a machine with 24GB system RAM and less than 2GB in use during install.

I have also manually downloaded the binary installer and executed it passing in the 'install' option and it behaves in the same manner.

The installer in use is claude-2.1.77-linux-x64.
Kernel is 6.17.0-14-generic
ldd (Ubuntu GLIBC 2.42-0ubuntu3.1) 2.42
Architecture is x86_64

What Should Happen?

The installer should properly install Claude Code without exhausting all available system RAM.

Error Messages/Logs

Installing Claude Code native build latest...

Steps to Reproduce

1. From terminal, run: curl -fsSL https://claude.ai/install.sh | bash

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.72

Claude Code Version

2.1.77

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

_No response_