Index: lib/sdk/crt/misc/environ.c
===================================================================
--- lib/sdk/crt/misc/environ.c	(revision 59223)
+++ lib/sdk/crt/misc/environ.c	(working copy)
@@ -213,6 +213,7 @@
    wchar_t **wenvptr;
    wchar_t *woption;
    char *mboption;
+   char **_environ_temp;
    int remove, index, count, size, result = 0, found = 0;
 
    if (option == NULL || (epos = wcschr(option, L'=')) == NULL)
@@ -268,8 +269,17 @@
        * same position. */
       free(_environ[index]);
       memmove(&_environ[index], &_environ[index+1], (count - index) * sizeof(char*));
-      _environ = realloc(_environ, count * sizeof(char*));
+      _environ_temp = realloc(_environ, count * sizeof(char*));
 
+	  if(_environ_temp != NULL)
+	  {
+		  _environ = _environ_temp;
+	  }
+	  else
+	  {
+		  free(_environ);
+	  }
+
       result = SetEnvironmentVariableW(name, NULL) ? 0 : -1;
    }
    else