From: Nick Clifton <nickc@redhat.com>
Date: Thu, 14 Mar 2019 16:03:07 +0000 (+0000)
Subject: Fix an illegal memory access when parsing a corrupt ELF file.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6cc71b820cc70b63711e9d7f584550b56e172b0a;p=binutils-gdb.git

Fix an illegal memory access when parsing a corrupt ELF file.

	PR 24333
	* elflink.c (_bfd_elf_add_default_symbol): Add a check for a NULL
	section owner pointer when adding the default symbol.
---

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 447eb707c87..7ed3929c0ae 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,9 @@
+2019-03-14  Nick Clifton  <nickc@redhat.com>
+
+	PR 24333
+	* elflink.c (_bfd_elf_add_default_symbol): Add a check for a NULL
+	section owner pointer when adding the default symbol.
+
 2019-03-14  Nick Clifton  <nickc@redhat.com>
 
 	PR 24332
diff --git a/bfd/elflink.c b/bfd/elflink.c
index 3ac58daafda..3413726b947 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -1941,6 +1941,7 @@ _bfd_elf_add_default_symbol (bfd *abfd,
 	{
 	  bh = &hi->root;
 	  if (bh->type == bfd_link_hash_defined
+	      && bh->u.def.section->owner != NULL
 	      && (bh->u.def.section->owner->flags & BFD_PLUGIN) != 0)
 	    {
 	      /* Mark the previous definition from IR object as