Don't exceed reloc array bounds

[Alan Modra]

	* elf64-ppc.c (ppc64_elf_relocate_section): Don't access rel[1]
	without first checking array bounds.
	* elf32-ppc.c (ppc_elf_relocate_section): Likewise.

diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c
index 66bbf0d..182dc2a 100644
--- a/bfd/elf32-ppc.c
+++ b/bfd/elf32-ppc.c
@@ -8000,7 +8000,8 @@ ppc_elf_relocate_section (bfd *output_bfd,
 	  break;
 
 	case R_PPC_TLSGD:
-	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
+	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
+	      && rel + 1 < relend)
 	    {
 	      unsigned int insn2;
 	      bfd_vma offset = rel->r_offset;
@@ -8027,7 +8028,8 @@ ppc_elf_relocate_section (bfd *output_bfd,
 	  break;
 
 	case R_PPC_TLSLD:
-	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
+	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
+	      && rel + 1 < relend)
 	    {
 	      unsigned int insn2;
 
diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c
index 889bdb0..7155aeb 100644
--- a/bfd/elf64-ppc.c
+++ b/bfd/elf64-ppc.c
@@ -13897,7 +13897,8 @@ ppc64_elf_relocate_section (bfd *output_bfd,
 	  break;
 
 	case R_PPC64_TLSGD:
-	  if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
+	  if (tls_mask != 0 && (tls_mask & TLS_GD) == 0
+	      && rel + 1 < relend)
 	    {
 	      unsigned int insn2;
 	      bfd_vma offset = rel->r_offset;
@@ -13931,7 +13932,8 @@ ppc64_elf_relocate_section (bfd *output_bfd,
 	  break;
 
 	case R_PPC64_TLSLD:
-	  if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
+	  if (tls_mask != 0 && (tls_mask & TLS_LD) == 0
+	      && rel + 1 < relend)
 	    {
 	      unsigned int insn2;
 	      bfd_vma offset = rel->r_offset;

-- 
Alan Modra
Australia Development Lab, IBM