Alexandre Julliard (@julliard) commented about dlls/ntdll/unix/socket.c:
if (out_size < ret_size) { freeifaddrs( ifaddrs );
file_complete_async( handle, event, apc, apc_user, io, STATUS_BUFFER_TOO_SMALL, 0 );
file_complete_async( handle, options, event, apc, apc_user, io, STATUS_BUFFER_TOO_SMALL, 0 );
`options` is never initialized here.