[Webkit-unassigned] [Bug 108485] New: Assertion faulire in SVGAnimatedType::valueAsString()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=108485

           Summary: Assertion faulire in SVGAnimatedType::valueAsString()
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: SVG
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: reni at webkit.org
                CC: zimmermann at kde.org, zherczeg at webkit.org,
                    pdr at google.com, schenney at chromium.org,
                    fmalita at chromium.org


During SVG fuzzing I've got the following ASSERT_NOT_REACHED assertion faulire:

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff59d0f6a in WebCore::SVGAnimatedType::valueAsString (this=0xa69ff0) at /home/reni/repos/webkit2/Source/WebCore/svg/SVGAnimatedType.cpp:268
268            ASSERT_NOT_REACHED();


Test:

<svg xmlns="http://www.w3.org/2000/svg">
    <circle>
        <animateTransform attributeName="transform" attributeType="CSS"></animateTransform>
    </circle>
</svg>

The problem is that the type of the SVGAnimatedType object is AnimatedTransformList what doesn't need valueAsString() support theoretically.

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