[ARC] Improved robustness. Return FALSE in case of NULL pointer.

bfd/
2018-03-01  Cupertino Miranda <cmiranda@synopsys.com>

	* elf32-arc.c (elf_arc_finish_dynamic_symbol) Return FALSE in case
	arc_htab is NULL.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 8c3654f541a2f08ec5a8fc5cfb3fad1c770b031e..318bf9412c1054a81c6b516348ace87d911f1018 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,10 @@
+2018-11-15  Claudiu Zissulescu  <claziss@synopsys.com>
+
+       Backport from mainline
+       2018-03-01  Cupertino Miranda <cmiranda@synopsys.com>
+       * elf32-arc.c (elf_arc_finish_dynamic_symbol) Return FALSE in case
+       arc_htab is NULL.
+
 2018-11-15  Claudiu Zissulescu  <claziss@synopsys.com>
 
        Backport from mainline

diff --git a/bfd/elf32-arc.c b/bfd/elf32-arc.c
index ab84de43815701d708fc43d7909e46586cb2df0a..1d0b6b8abec350eb9710c0bfa0f5ba67e478c560 100644 (file)
--- a/bfd/elf32-arc.c
+++ b/bfd/elf32-arc.c
@@ -2420,6 +2420,9 @@ elf_arc_finish_dynamic_symbol (bfd * output_bfd,
     {
       struct elf_arc_link_hash_table *arc_htab = elf_arc_hash_table (info);
 
+      if (arc_htab == NULL)
+       return FALSE;
+
       if (h->dynindx == -1
          || (h->root.type != bfd_link_hash_defined
              && h->root.type != bfd_link_hash_defweak)