dllcrt0.c corrupts heap by Orin Eman(laplink)

All memory allocated by the C runtime in a dll is freed too early by __freeCrtMemory().

_ioterm() and _mtterm() which are called after __freeCrtMemory() both access and/or free memory that was allocated by the C runtime. See below:

                    /* Free allocated CRT memory */
                    __freeCrtMemory();

#ifndef _DEBUG
                    /* If dwReason is DLL_PROCESS_DETACH, lpreserved is NULL
                     * if FreeLibrary has been called or the DLL load failed
                     * and non-NULL if the process is terminating.
                     */
                    if ( lpreserved == NULL )
                    {
#endif /* _DEBUG */
                        /*
                         * The process is NOT terminating so we must clean up...
                         */
                        /* Shut down lowio */
                        _ioterm();
                        _mtterm();

                        /* This should be the last thing the C run-time does */
                        _heap_term(); /* heap is now invalid! */
#ifndef _DEBUG
                    }
#endif /* _DEBUG */


The fix is simple. __freeCrtMemory() should be after _mtterm().