# commit	d1458933830456e54223d9fc61f0d9b3a19256f5
# tree	98864afbaa67a592824cc9f0c846bce8efde33c9	tree
# parent	6fe4e5bd10b996428a557e036c07c5839a8e0a49	commit | diff
# PR32858 ld segfault on fuzzed object
# 
# We missed one place where it is necessary to check for empty groups.
# 
# PR 32858
# * elflink.c (elf_gc_sweep): Protect against empty group.

--- binutils.orig/bfd/elflink.c	2025-06-30 15:59:11.706908490 +0100
+++ binutils-2.41/bfd/elflink.c	2025-06-30 16:00:32.282299523 +0100
@@ -14115,7 +14115,8 @@ elf_gc_sweep (bfd *abfd, struct bfd_link
 	  if (o->flags & SEC_GROUP)
 	    {
 	      asection *first = elf_next_in_group (o);
-	      o->gc_mark = first->gc_mark;
+	      if (first != NULL)
+	       o->gc_mark = first->gc_mark;
 	    }
 
 	  if (o->gc_mark)