Binutils: Security fix for CVE-2018-7642

Affects: <= 2.30

(From OE-Core rev: a424ac771bfceed2cef4dad8c0fd698764bc62a6)

Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/binutils/binutils-2.29.1.inc

@@ -76,6 +76,7 @@ SRC_URI = "\
      file://CVE-2018-7568_p1.patch \
      file://CVE-2018-7568_p2.patch \
      file://CVE-2018-7569.patch \
+     file://CVE-2018-7642.patch \
 "
 S  = "${WORKDIR}/git"
 

meta/recipes-devtools/binutils/binutils/CVE-2018-7642.patch

@@ -0,0 +1,51 @@
+From 116acb2c268c89c89186673a7c92620d21825b25 Mon Sep 17 00:00:00 2001
+From: Alan Modra <amodra@gmail.com>
+Date: Wed, 28 Feb 2018 22:09:50 +1030
+Subject: [PATCH] PR22887, null pointer dereference in
+ aout_32_swap_std_reloc_out
+
+	PR 22887
+	* aoutx.h (swap_std_reloc_in): Correct r_index bound check.
+
+Upstream-Status: Backport
+Affects: <= 2.30
+CVE: CVE-2018-7642
+Signed-off-by: Armin Kuster <akuster@mvista.com>
+
+---
+ bfd/ChangeLog | 5 +++++
+ bfd/aoutx.h   | 6 ++++--
+ 2 files changed, 9 insertions(+), 2 deletions(-)
+
+Index: git/bfd/ChangeLog
+===================================================================
+--- git.orig/bfd/ChangeLog
++++ git/bfd/ChangeLog
+@@ -1,3 +1,8 @@
++2018-02-28  Alan Modra  <amodra@gmail.com>
++
++	PR 22887
++	* aoutx.h (swap_std_reloc_in): Correct r_index bound check.
++
+ 2018-02-28  Nick Clifton  <nickc@redhat.com>
+  
+        PR 22895
+Index: git/bfd/aoutx.h
+===================================================================
+--- git.orig/bfd/aoutx.h
++++ git/bfd/aoutx.h
+@@ -2211,10 +2211,12 @@ NAME (aout, swap_ext_reloc_in) (bfd *abf
+       || r_type == (unsigned int) RELOC_BASE22)
+     r_extern = 1;
+ 
+-  if (r_extern && r_index > symcount)
++  if (r_extern && r_index >= symcount)
+     {
+       /* We could arrange to return an error, but it might be useful
+-         to see the file even if it is bad.  */
++        to see the file even if it is bad.  FIXME: Of course this
++        means that objdump -r *doesn't* see the actual reloc, and
++        objcopy silently writes a different reloc.  */
+       r_extern = 0;
+       r_index = N_ABS;
+     }