[Webkit-unassigned] [Bug 220584] createImageBitmap() causes null pointer dereference using Cairo lib

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=220584

--- Comment #1 from wz906234737 at gmail.com ---
The code that dereference nullptr

```
// ============== Source/WebCore/html/ImageBitmap.cpp:822 ===============

    auto tempBitmapData = createImageBuffer(scriptExecutionContext, imageData->size(), bufferRenderingMode);

// `tempBitmapData` createImageBuffer(...) fail and return a nullptr ====

    tempBitmapData->putImageData(AlphaPremultiplication::Unpremultiplied, *imageData, IntRect(0, 0, imageData->width(), imageData->height()), { }, alphaPremultiplication);
// ======================================================================

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