Re: stab nearest_line bfd_malloc_and_get_section

It didn't take long for the fuzzers to avoid size checks in
bfd_malloc_and_get_section.  Plug this hole.

	* syms.c (_bfd_stab_section_find_nearest_line): Ignore fuzzed
	sections with no contents.

diff --git a/bfd/syms.c b/bfd/syms.c
index e8077f59bf0c566bc3d60068d11637aab7a1d50c..c9d27ebe5d440d466ed5c231ccbf188ff0d5fd6d 100644 (file)
--- a/bfd/syms.c
+++ b/bfd/syms.c
@@ -1019,6 +1019,10 @@ _bfd_stab_section_find_nearest_line (bfd *abfd,
            return true;
        }
 
+      if ((info->stabsec->flags & SEC_HAS_CONTENTS) == 0
+         || (info->strsec->flags & SEC_HAS_CONTENTS) == 0)
+       goto out;
+
       stabsize = (info->stabsec->rawsize
                  ? info->stabsec->rawsize
                  : info->stabsec->size);