diff -up qt-everywhere-opensource-src-4.8.6/src/gui/image/qgifhandler.cpp.QTBUG-38367 qt-everywhere-opensource-src-4.8.6/src/gui/image/qgifhandler.cpp
--- qt-everywhere-opensource-src-4.8.6/src/gui/image/qgifhandler.cpp.QTBUG-38367	2014-04-10 13:37:12.000000000 -0500
+++ qt-everywhere-opensource-src-4.8.6/src/gui/image/qgifhandler.cpp	2014-04-24 15:58:54.515862458 -0500
@@ -359,6 +359,13 @@ int QGIFFormat::decode(QImage *image, co
                     memset(bits, 0, image->byteCount());
                 }
 
+                // Check if the previous attempt to create the image failed. If it
+                // did then the image is broken and we should give up.
+                if (image->isNull()) {
+                    state = Error;
+                    return -1;
+                }
+
                 disposePrevious(image);
                 disposed = false;