openai/codex · error · anyhow::Error

ConvertStringSidToSidW failed for {sid_str}: {}

Error message

ConvertStringSidToSidW failed for {sid_str}: {}

What it means

Error "ConvertStringSidToSidW failed for {sid_str}: {}" thrown in openai/codex.

Source

Thrown at codex-rs/windows-sandbox-rs/src/winutil.rs:185

    }
}

fn well_known_sid_str(name: &str) -> Option<&'static str> {
    match name {
        "Administrators" => Some(SID_ADMINISTRATORS),
        "Users" => Some(SID_USERS),
        "Authenticated Users" => Some(SID_AUTHENTICATED_USERS),
        "Everyone" => Some(SID_EVERYONE),
        "SYSTEM" => Some(SID_SYSTEM),
        _ => None,
    }
}

fn sid_bytes_from_string(sid_str: &str) -> Result<Vec<u8>> {
    let sid_w = to_wide(OsStr::new(sid_str));
    let mut psid: *mut std::ffi::c_void = std::ptr::null_mut();
    if unsafe { ConvertStringSidToSidW(sid_w.as_ptr(), &mut psid) } == 0 {
        return Err(anyhow::anyhow!(
            "ConvertStringSidToSidW failed for {sid_str}: {}",
            unsafe { GetLastError() }
        ));
    }
    let sid_len = unsafe { GetLengthSid(psid) };
    if sid_len == 0 {
        unsafe {
            LocalFree(psid as _);
        }
        return Err(anyhow::anyhow!("GetLengthSid failed for {sid_str}"));
    }
    let mut out = vec![0u8; sid_len as usize];
    let ok = unsafe { CopySid(sid_len, out.as_mut_ptr() as *mut std::ffi::c_void, psid) };
    unsafe {
        LocalFree(psid as _);
    }
    if ok == 0 {
        return Err(anyhow::anyhow!("CopySid failed for {sid_str}"));

View on GitHub (pinned to 339751715c)

Solutions

1. Pass a valid textual SID in S-1-... form; validate the SID string before conversion.

When it happens

Trigger: Thrown at codex-rs/windows-sandbox-rs/src/winutil.rs:185 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/e957c447117728b5. Report an issue: GitHub.