Check corrupt input

[external/binutils.git] / bfd / elflink.c

diff --git a/bfd/elflink.c b/bfd/elflink.c
index c964a98..94ab762 100644 (file)
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -11683,6 +11683,12 @@ _bfd_elf_gc_mark_rsec (struct bfd_link_info *info, asection *sec,
       || ELF_ST_BIND (cookie->locsyms[r_symndx].st_info) != STB_LOCAL)
     {
       h = cookie->sym_hashes[r_symndx - cookie->extsymoff];
+      if (h == NULL)
+       {
+         info->callbacks->einfo (_("%F%P: corrupt input: %B\n"),
+                                 sec->owner);
+         return NULL;
+       }
       while (h->root.type == bfd_link_hash_indirect
             || h->root.type == bfd_link_hash_warning)
        h = (struct elf_link_hash_entry *) h->root.u.i.link;