--- old/src/java.desktop/share/classes/com/sun/imageio/plugins/png/PNGImageReader.java	2017-12-28 15:26:34.715506000 +0530
+++ new/src/java.desktop/share/classes/com/sun/imageio/plugins/png/PNGImageReader.java	2017-12-28 15:26:34.315306000 +0530
@@ -1086,10 +1086,20 @@
         byte[] curr = new byte[bytesPerRow];
         byte[] prior = new byte[bytesPerRow];
 
-        // Create a 1-row tall Raster to hold the data
-        WritableRaster passRow = createRaster(passWidth, 1, inputBands,
-                                              eltsPerRow,
-                                              bitDepth);
+        WritableRaster passRow = null;
+        try {
+            // Create a 1-row tall Raster to hold the data
+            passRow = createRaster(passWidth, 1, inputBands, eltsPerRow,
+                                   bitDepth);
+        } catch (Exception e) {
+            /*
+             * createRaster() can throw many types of Exception but according
+             * to specification we must throw only IIOException if we face any
+             * issue while reading an image. So at this high level we catch
+             * the exception and wrap it around IIOException.
+             */
+            throw new IIOException("Caught exception during read: ", e);
+        }
 
         // Create an array suitable for holding one pixel
         int[] ps = passRow.getPixel(0, 0, (int[])null);
--- /dev/null	2017-12-28 15:14:59.597324000 +0530
+++ new/test/jdk/javax/imageio/plugins/png/PngReaderLargeWidthStrideTest.java	2017-12-28 15:26:35.087692000 +0530
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug     8191174
+ * @summary Test verifies that PNGImageReader doesn't throw any undocumented
+ *          Exception because of faulty calculation of scanline stride in
+ *          PNGImageReader.
+ * @run     main PngReaderLargeWidthStrideTest
+ */
+
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import java.util.Base64;
+import javax.imageio.IIOException;
+import javax.imageio.ImageIO;
+
+public class PngReaderLargeWidthStrideTest {
+
+    private static String inputImageBase64 = "iVBORw0KGgoAAAANSUhEUk////8AAAA"
+            + "BCAAAAAA6fptVAAAACklEQVQYV2P4DwABAQEAWk1v8QAAAABJRU5ErkJgggo=";
+
+    public static void main(String[] args) throws Exception {
+
+        byte[] inputBytes = Base64.getDecoder().decode(inputImageBase64);
+        InputStream in = new ByteArrayInputStream(inputBytes);
+
+        try {
+            ImageIO.read(in);
+        } catch (IIOException e) {
+            /*
+             * Do nothing we expect it to throw IIOException, but if it throws
+             * any other exception test will fail.
+             */
+        }
+    }
+}
+