https://github.com/ImageMagick/ImageMagick/issues/908

ImageMagick · Dec 22, 2017 · 650ec57 · 650ec57
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diff --git a/ChangeLog b/ChangeLog
@@ -2,6 +2,8 @@
   * Fix error reading multi-layer XCF image file.
   * Fix possible stack overflow in WEBP reader (reference
     https://github.com/ImageMagick/ImageMagick/issues/907)
+  * Fixed numerous memory leaks (reference
+    https://github.com/ImageMagick/ImageMagick/issues).
 
 2017-12-16  7.0.7-15 Cristy  <quetzlzacatenango@image...>
   * Release ImageMagick version 7.0.7-15, GIT revision 21924:30cb31746:20171216.

diff --git a/coders/png.c b/coders/png.c
@@ -2383,7 +2383,9 @@ static Image *ReadOnePNGImage(MngInfo *mng_info,
         (void) LogMagickEvent(CoderEvent,GetMagickModule(),
           "  exit ReadOnePNGImage() with error.");
 
-      return(GetFirstImageInList(image));
+      if (image != (Image *) NULL)
+        image=DestroyImage(image);
+      return(image);
     }
 
   /* {  For navigation to end of SETJMP-protected block.  Within this