The following is a patch for bug in mem.c

In some condition bug in mem.c leads to a memory leak and crash

*** mem.c       2008-02-10 04:18:10.000000000 -0500

--- mem.c.patch 2008-07-19 20:04:35.000000000 -0400

***************

*** 390,395 ****

--- 390,396 ----

                                handler->next->prev = NULL;

                        } else {

                                inst->session_head = NULL;

+                               inst->session_tail = NULL;

                        }

                        eap_handler_free(handler);

                }