From 9a57c4b20eefb4590ae62fc89a521de810d1cb0e Mon Sep 17 00:00:00 2001
From: jsteube <jens.steube@gmail.com>
Date: Sat, 12 Aug 2017 13:32:05 +0200
Subject: [PATCH] Fix missing boundary check in pure kernel rule engine

---
 OpenCL/inc_rp.cl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/OpenCL/inc_rp.cl b/OpenCL/inc_rp.cl
index 58046efc4..be8c6e8cc 100644
--- a/OpenCL/inc_rp.cl
+++ b/OpenCL/inc_rp.cl
@@ -148,6 +148,8 @@ static int mangle_prepend (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const u8 p1, u
 {
   const int out_len = len + 1;
 
+  if (out_len >= RP_PASSWORD_SIZE) return (len);
+
   for (int pos = len - 1; pos >= 0; pos--)
   {
     buf[pos + 1] = buf[pos];