From 011a13613403c42717c623b0c5fc1e69de9f65b5 Mon Sep 17 00:00:00 2001
From: Alan Modra <amodra@gmail.com>
Date: Wed, 5 Oct 2022 10:27:46 +1030
Subject: [PATCH] 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.
---
 bfd/syms.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/bfd/syms.c b/bfd/syms.c
index e8077f59bf0..c9d27ebe5d4 100644
--- 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);
-- 
2.30.2