From 813ff37967cfab7d4615383cef747e224fb1e891 Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.a.alekhin@gmail.com>
Date: Wed, 20 Dec 2017 14:19:46 +0000
Subject: [PATCH] imgproc(ocl): fix RGB2RGBA kernel out of range access

---
 modules/imgproc/src/opencl/cvtcolor.cl | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/modules/imgproc/src/opencl/cvtcolor.cl b/modules/imgproc/src/opencl/cvtcolor.cl
index 7f1eaf000c..885392011d 100644
--- a/modules/imgproc/src/opencl/cvtcolor.cl
+++ b/modules/imgproc/src/opencl/cvtcolor.cl
@@ -877,7 +877,11 @@ __kernel void RGB(__global const uchar* srcptr, int src_step, int src_offset,
             {
                 __global const DATA_TYPE * src = (__global const DATA_TYPE *)(srcptr + src_index);
                 __global DATA_TYPE * dst = (__global DATA_TYPE *)(dstptr + dst_index);
+#if scn == 3
+                DATA_TYPE_3 src_pix = vload3(0, src);
+#else
                 DATA_TYPE_4 src_pix = vload4(0, src);
+#endif
 
 #ifdef REVERSE
                 dst[0] = src_pix.z;