diff --git a/src/svg/qsvghandler.cpp b/src/svg/qsvghandler.cpp

index b3d9aaf..9dac05c 100644

--- a/src/svg/qsvghandler.cpp

+++ b/src/svg/qsvghandler.cpp

@@ -673,7 +673,8 @@ static qreal toDouble(const QChar *&str)

             val = -val;

     } else {

         val = QByteArray::fromRawData(temp, pos).toDouble();

-        if (qFpClassify(val) != FP_NORMAL)

+        // Do not tolerate values too wild to be represented normally by floats

+        if (qFpClassify(float(val)) != FP_NORMAL)

             val = 0;

     }

     return val;

@@ -3046,6 +3047,8 @@ static QSvgStyleProperty *createRadialGradientNode(QSvgNode *node,

         ncy = toDouble(cy);

     if (!r.isEmpty())

         nr = toDouble(r);

+    if (nr < 0.5)

+        nr = 0.5;

     qreal nfx = ncx;

     if (!fx.isEmpty())