commit 6a1cf708dd5681b517744d6d4fac02e4e4a0aa2e

Author: Aurelien Jarno <aurelien@aurel32.net>

Date:   Wed Mar 11 21:03:50 2015 -0400

    Fix ldconfig segmentation fault with corrupted cache (Bug 18093).

--- glibc-2.17-c758a686/elf/cache.c

+++ glibc-2.17-c758a686/elf/cache.c

@@ -688,7 +688,9 @@

   if (aux_cache == MAP_FAILED

       || aux_cache_size < sizeof (struct aux_cache_file)

       || memcmp (aux_cache->magic, AUX_CACHEMAGIC, sizeof AUX_CACHEMAGIC - 1)

-      || aux_cache->nlibs >= aux_cache_size)

+      || aux_cache_size != (sizeof(struct aux_cache_file) +

+                            aux_cache->nlibs * sizeof(struct aux_cache_file_entry) +

+                            aux_cache->len_strings))

     {

       close (fd);

       init_aux_cache ();