openai/codex · error · io::Error

InvalidData

InvalidData

Error message

invalid IPv4 TCP owner table length

What it means

Error "invalid IPv4 TCP owner table length" thrown in openai/codex.

Source

Thrown at codex-rs/network-proxy/src/windows_tcp_attribution.rs:102

                TCP_TABLE_OWNER_PID_CONNECTIONS,
                0,
            )
        };
        match result {
            NO_ERROR => break buffer,
            ERROR_INSUFFICIENT_BUFFER => continue,
            _ => return Err(win32_error("read IPv4 TCP owner table", result)),
        }
    };

    let rows = parse_tcp_owner_rows(&buffer, byte_len as usize)?;
    unique_client_process_id(rows, accepted_local_addr, accepted_peer_addr)
}

fn parse_tcp_owner_rows(buffer: &[usize], byte_len: usize) -> io::Result<&[MIB_TCPROW_OWNER_PID]> {
    let rows_offset = offset_of!(MIB_TCPTABLE_OWNER_PID, table);
    if byte_len > size_of_val(buffer) || byte_len < rows_offset {
        return Err(io::Error::new(
            io::ErrorKind::InvalidData,
            "invalid IPv4 TCP owner table length",
        ));
    }

    let row_count = unsafe { std::ptr::read_unaligned(buffer.as_ptr().cast::<u32>()) } as usize;
    let rows_byte_len = row_count
        .checked_mul(size_of::<MIB_TCPROW_OWNER_PID>())
        .and_then(|len| rows_offset.checked_add(len))
        .ok_or_else(|| {
            io::Error::new(
                io::ErrorKind::InvalidData,
                "IPv4 TCP owner table length overflow",
            )
        })?;
    if rows_byte_len > byte_len {
        return Err(io::Error::new(
            io::ErrorKind::InvalidData,

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/network-proxy/src/windows_tcp_attribution.rs:102 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/ed0e2145e127ad4f. Report an issue: GitHub.