From b2e101287244ff230f5906f54cd9424acb1442eb Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Mon, 2 Apr 2018 19:35:27 -0400
Subject: [PATCH] https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7304

---
 coders/wpg.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/coders/wpg.c b/coders/wpg.c
index 7d01b2f87..bcc1534d2 100644
--- a/coders/wpg.c
+++ b/coders/wpg.c
@@ -1446,8 +1446,9 @@ static Image *ReadWPGImage(const ImageInfo *image_info,
                   }
                 case 1:    /*RLE for WPG2 */
                   {
-                    if( UnpackWPG2Raster(image,bpp,exception) < 0)
-                      goto DecompressionFailed;
+                    if(!image_info->ping)
+                      if( UnpackWPG2Raster(image,bpp,exception) < 0)
+                        goto DecompressionFailed;
                     break;
                   }
                 }
-- 
2.40.0