codex

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jif-oai 2b5d0b2935 feat: update sandbox policy to allow TTY (#7580 )

**Change**: Seatbelt now allows file-ioctl on /dev/ttys[0-9]+ even
without the sandbox extension so pre-created PTYs remain interactive
(Python REPL, shells).

**Risk**: A seatbelted process that already holds a PTY fd (including
one it shouldn’t) could issue tty ioctls like TIOCSTI or termios changes
on that fd. This doesn’t allow opening new PTYs or reading/writing them;
it only broadens ioctl capability on existing fds.

**Why acceptable**: We already hand the child its PTY for interactive
use; restoring ioctls is required for isatty() and prompts to work. The
attack requires being given or inheriting a sensitive PTY fd; by design
we don’t hand untrusted processes other users’ PTYs (we don't hand them
any PTYs actually), so the practical exposure is limited to the PTY
intentionally allocated for the session.

**Validation**:
Running
```
start a python interpreter and keep it running
```
Followed by:
* `calculate 1+1 using it` -> works as expected
* `Use this Python session to run the command just fix in
/Users/jif/code/codex/codex-rs` -> does not work as expected

2b5d0b2935 · 2025-12-04 17:58:58 +00:00

History

common

Migrate model family to models manager (#7565 )

2025-12-03 18:49:47 -08:00

fixtures

Improve SSE tests (#1546 )

2025-07-12 16:53:55 -07:00

suite

feat: update sandbox policy to allow TTY (#7580 )

2025-12-04 17:58:58 +00:00

all.rs