diff -up qtbase-opensource-src-5.2.1/src/gui/image/qgifhandler.cpp.QTBUG-38367 qtbase-opensource-src-5.2.1/src/gui/image/qgifhandler.cpp
--- qtbase-opensource-src-5.2.1/src/gui/image/qgifhandler.cpp.QTBUG-38367	2014-02-01 14:37:35.000000000 -0600
+++ qtbase-opensource-src-5.2.1/src/gui/image/qgifhandler.cpp	2014-04-24 16:28:10.952100278 -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;