viyatb-oai
3377afd84a
## Why The Linux managed-proxy bridge helpers are long-lived child processes in the sandbox networking path. Before this change they stayed dumpable and the network seccomp profile did not block cross-process memory syscalls, so another same-user process could potentially inspect or modify bridge memory instead of interacting only through the intended proxy interface. ## What changed - reuse the shared `codex-process-hardening` helper to mark bridge helper children non-dumpable before they begin serving - deny `process_vm_readv` and `process_vm_writev` in the existing network seccomp filter ## Security impact Bridge helpers are less exposed to same-user cross-process inspection or memory writes, which reduces the chance that sandboxed code can interfere with proxy support processes outside the intended IPC path. ## Verification - `cargo test -p codex-process-hardening` - `cargo test -p codex-linux-sandbox` - attempted `cargo check -p codex-linux-sandbox --target x86_64-unknown-linux-gnu`; blocked on missing `x86_64-linux-gnu-gcc` on this macOS host --------- Co-authored-by: Codex <noreply@openai.com>
npm i -g @openai/codex
or brew install --cask codex
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run
codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
Installing and running Codex CLI
Install globally with your preferred package manager:
# Install using npm
npm install -g @openai/codex
# Install using Homebrew
brew install --cask codex
Then simply run codex to get started.
You can also go to the latest GitHub Release and download the appropriate binary for your platform.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.