From 7755e67116e8973ee0e3b22d653df026a84fa01b Mon Sep 17 00:00:00 2001
From: Chris Liddell <chris.liddell@artifex.com>
Date: Thu, 15 Jun 2017 08:58:31 +0100
Subject: [PATCH] Bug 698055: bounds check zone pointer in Ins_MDRP

---
 base/ttinterp.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- end of original header

CVE: CVE-2017-9726

Upstream-Status: Backport [git://git.ghostscript.com/ghostpdl.git]

Signed-off-by: Joe Slater <joe.slater@windriver.com>
diff --git a/base/ttinterp.c b/base/ttinterp.c
index e7c9d68..af457e8 100644
--- a/base/ttinterp.c
+++ b/base/ttinterp.c
@@ -3770,7 +3770,8 @@ static int nInstrCount=0;
 
     point = (Int)args[0];
 
-    if ( BOUNDS( args[0], CUR.zp1.n_points ) )
+    if ( BOUNDS( args[0], CUR.zp1.n_points ) ||
+         BOUNDS( CUR.GS.rp0, CUR.zp0.n_points) )
     {
         /* Current version of FreeType silently ignores this out of bounds error
          * and drops the instruction, see bug #691121
-- 
1.7.9.5