  int ConnectToHandler(int signo, base::ScopedFD* connection) {
    int fds[2];
    if (socketpair(AF_UNIX, SOCK_STREAM, 0, fds) != 0) {
      return errno;
    }
    base::ScopedFD local_connection(fds[0]);
    base::ScopedFD handlers_socket(fds[1]);

    int optval = 1;
    socklen_t optlen = sizeof(optval);
    setsockopt(handlers_socket.get(), SOL_SOCKET, SO_PASSCRED, &optval, optlen);

    iovec iov[2];
    iov[0].iov_base = &signo;
    iov[0].iov_len = sizeof(signo);
    iov[1].iov_base = &request_dump_;
    iov[1].iov_len = sizeof(request_dump_);

    msghdr msg;
    msg.msg_name = nullptr;
    msg.msg_namelen = 0;
    msg.msg_iov = iov;
    msg.msg_iovlen = base::size(iov);

    char cmsg_buf[CMSG_SPACE(sizeof(int))];
    msg.msg_control = cmsg_buf;
    msg.msg_controllen = sizeof(cmsg_buf);

    cmsghdr* cmsg = CMSG_FIRSTHDR(&msg);
    cmsg->cmsg_level = SOL_SOCKET;
    cmsg->cmsg_type = SCM_RIGHTS;
    cmsg->cmsg_len = CMSG_LEN(sizeof(int));
    *reinterpret_cast<int*>(CMSG_DATA(cmsg)) = handlers_socket.get();

    if (HANDLE_EINTR(sendmsg(server_fd_, &msg, MSG_NOSIGNAL)) < 0) {
      return errno;
    }

    *connection = std::move(local_connection);
    return 0;
  }

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.