From: Alan Modra <amodra@gmail.com>
Date: Mon, 12 Sep 2022 09:28:53 +0000 (+0930)
Subject: ubsan: som_is_space null dereference
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=72e366db620f5b2264290d9ba3b62df74bd0c40b;p=binutils-gdb.git

ubsan: som_is_space null dereference

On objcopy of fuzzed file.

	* som.c (som_write_fixups): Exit loop if space sections all
	processed.
---

diff --git a/bfd/som.c b/bfd/som.c
index c22f13b5a4c..38c574a97c8 100644
--- a/bfd/som.c
+++ b/bfd/som.c
@@ -2933,8 +2933,10 @@ som_write_fixups (bfd *abfd,
       asection *subsection;
 
       /* Find a space.  */
-      while (!som_is_space (section))
+      while (section && !som_is_space (section))
 	section = section->next;
+      if (!section)
+	break;
 
       /* Now iterate through each of its subspaces.  */
       for (subsection = abfd->sections;