commit ad3d14c47e872fcd13d83c9a255266c7027c8e16
author Alan Modra <amodra@gmail.com> Sat Jan 01 13:52:38 2022 +1030
committer Alan Modra <amodra@gmail.com> Sat Jan 01 14:22:11 2022 +1030
tree 15b0215ba2c33bc32cb160ef2ca1e6bf3cabca8d
parent aebb3d543da4d411d3d767912193c3849f59ff99

asan: Null-dereference in _bfd_xcoff_copy_private_bfd_data

sec->output_section will be NULL when objcopy removes sections.

	* coff-rs6000.c (_bfd_xcoff_copy_private_bfd_data): Protect against
	objcopy removing sections.

bfd/coff-rs6000.c

diff --git a/bfd/coff-rs6000.c b/bfd/coff-rs6000.c
index 1cc2162..20b6074 100644
--- a/bfd/coff-rs6000.c
+++ b/bfd/coff-rs6000.c
@@ -386,7 +386,7 @@
   else
     {
       sec = coff_section_from_bfd_index (ibfd, ix->sntoc);
-      if (sec == NULL)
+      if (sec == NULL || sec->output_section == NULL)
 	ox->sntoc = 0;
       else
 	ox->sntoc = sec->output_section->target_index;
@@ -396,7 +396,7 @@
   else
     {
       sec = coff_section_from_bfd_index (ibfd, ix->snentry);
-      if (sec == NULL)
+      if (sec == NULL || sec->output_section == NULL)
 	ox->snentry = 0;
       else
 	ox->snentry = sec->output_section->target_index;