openai/codex · error · anyhow::Error

SetHandleInformation failed for stdio handle: {}

Error message

SetHandleInformation failed for stdio handle: {}

What it means

Error "SetHandleInformation failed for stdio handle: {}" thrown in openai/codex.

Source

Thrown at codex-rs/windows-sandbox-rs/src/process.rs:138

    let mut si: STARTUPINFOEXW = std::mem::zeroed();
    si.StartupInfo.cb = std::mem::size_of::<STARTUPINFOEXW>() as u32;
    // Some processes (e.g., PowerShell) can fail with STATUS_DLL_INIT_FAILED
    // if lpDesktop is not set when launching with a restricted token.
    // Point explicitly at the interactive desktop or a private desktop.
    si.StartupInfo.lpDesktop = desktop.startup_info_desktop();
    match stdio {
        Some((stdin_h, stdout_h, stderr_h)) => {
            si.StartupInfo.dwFlags |= STARTF_USESTDHANDLES;
            si.StartupInfo.hStdInput = stdin_h;
            si.StartupInfo.hStdOutput = stdout_h;
            si.StartupInfo.hStdError = stderr_h;
            let mut inherited_handles = vec![stdin_h, stdout_h];
            if !inherited_handles.contains(&stderr_h) {
                inherited_handles.push(stderr_h);
            }
            for &handle in &inherited_handles {
                if SetHandleInformation(handle, HANDLE_FLAG_INHERIT, HANDLE_FLAG_INHERIT) == 0 {
                    return Err(anyhow!(
                        "SetHandleInformation failed for stdio handle: {}",
                        GetLastError()
                    ));
                }
            }
            attrs.set_handle_list(inherited_handles)?;
        }
        None => {
            ensure_inheritable_stdio(&mut si.StartupInfo)?;
        }
    }
    si.lpAttributeList = attrs.as_mut_ptr();

    let creation_flags = CREATE_UNICODE_ENVIRONMENT | EXTENDED_STARTUPINFO_PRESENT | console_flags;
    let ok = CreateProcessAsUserW(
        h_token,
        std::ptr::null(),
        cmdline.as_mut_ptr(),

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/windows-sandbox-rs/src/process.rs:138 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of openai/codex@339751715c (2026-08-25). Data as JSON: /api/errors/ce6433c695e49599. Report an issue: GitHub.