src/java.base/unix/native/libnet/net_util_md.c

*** 351,360 ****
--- 351,361 ----
       * IPv4 socket then we need to disable IPv6.
       */
      if (getsockname(0, (struct sockaddr *)&sa, &sa_len) == 0) {
          struct sockaddr *saP = (struct sockaddr *)&sa;
          if (saP->sa_family != AF_INET6) {
+             close(fd);
              return JNI_FALSE;
          }
      }
  
      /**