*** ../bash-4.2-patched/assoc.c	2009-08-05 20:19:40.000000000 -0400
--- assoc.c	2011-10-04 20:23:07.000000000 -0400
***************
*** 78,81 ****
--- 78,86 ----
    if (b == 0)
      return -1;
+   /* If we are overwriting an existing element's value, we're not going to
+      use the key.  Nothing in the array assignment code path frees the key
+      string, so we can free it here to avoid a memory leak. */
+   if (b->key != key)
+     free (key);
    FREE (b->data);
    b->data = value ? savestring (value) : (char *)0;