iov.iov_base = &uctrl_msg->ctrl_msg_wire;
iov.iov_len = sizeof(struct udev_ctrl_msg_wire);
- size = recvmsg(conn->sock, &smsg, 0);
+ size = recvmsg(conn->sock, &smsg, MSG_CMSG_CLOEXEC);
if (size < 0) {
log_error_errno(errno, "unable to receive ctrl message: %m");
goto err;