[PATCH][BZ #15308] _dl_sort_fini reads memory already freed in dl-libc.c's libc_freeres

[Ondřej Bílka]

Hi,

A following patch was described at bugzilla by Don Hatch.

OK to commit?

	* elf/dl-libc.c (libc_freeres_fn): Fix invalid read.

diff --git a/elf/dl-libc.c b/elf/dl-libc.c
index aba0d1a..397d898 100644
--- a/elf/dl-libc.c
+++ b/elf/dl-libc.c
@@ -286,6 +286,7 @@ libc_freeres_fn (free_mem)
 	  /* Free the initfini dependency list.  */
 	  if (l->l_free_initfini)
 	    free (l->l_initfini);
+	  l->l_initfini = NULL;
 	}
 
       if (__builtin_expect (GL(dl_ns)[ns]._ns_global_scope_alloc, 0) != 0