From: Nick Clifton <nickc@redhat.com>
Date: Tue, 17 May 2005 16:23:26 +0000 (+0000)
Subject: (bfd_section_from_shdr): Add sanity check when parsing dynamic sections.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8e0ed13fa56c0f18e69a559dcace1fc9431874a2;p=binutils-gdb.git

(bfd_section_from_shdr): Add sanity check when parsing dynamic sections.
---

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 3d2b2d9b230..feb815ffe9d 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,8 @@
+2005-05-17  Tavis Ormandy <taviso@gentoo.org>
+
+	* elf.c (bfd_section_from_shdr): Add sanity check when parsing
+	dynamic sections.
+
 2005-05-17  Alan Modra  <amodra@bigpond.net.au>
 
 	* elf32-ppc.c (LIS_11. LIS_12): Define.
diff --git a/bfd/elf.c b/bfd/elf.c
index 8e087e32dc3..f77d626a30d 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -1768,6 +1768,9 @@ bfd_section_from_shdr (bfd *abfd, unsigned int shindex)
     case SHT_DYNAMIC:	/* Dynamic linking information.  */
       if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
 	return FALSE;
+      if (hdr->sh_link > elf_numsections (abfd)
+	  || elf_elfsections (abfd)[hdr->sh_link] == NULL)
+	return FALSE;
       if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB)
 	{
 	  Elf_Internal_Shdr *dynsymhdr;