History: https://results.webkit.org/?suite=layout-tests&test=fast%2Fcanvas%2Fcanvas-drawImage-detached-leak.html&style=debug&platform=GTK&platform=WPE&platform=wincairo This seems like the first failure. Buildbot: builder GTK-Linux-64-bit-Debug-Tests build 12421 : 274762@main https://build.webkit.org/#/builders/63/builds/12421 stderr: ASSERTION FAILED: m_encodedDataStatus == EncodedDataStatus::SizeAvailable /app/webkit/Source/WebCore/platform/image-decoders/ScalableImageDecoder.h(91) : virtual void WebCore::ScalableImageDecoder::setData(const WebCore::FragmentedSharedBuffer&, bool) 1 0x7ff2e2ad7a84 WTFCrash 2 0x7ff2edb22cb6 WTF::isIntegralOrPointerType() 3 0x7ff2ef9179df WebCore::ScalableImageDecoder::setData(WebCore::FragmentedSharedBuffer const&, bool) 4 0x7ff2ef921f4d WebCore::GIFImageDecoder::setData(WebCore::FragmentedSharedBuffer const&, bool) 5 0x7ff2f3e96e70 WebCore::BitmapImageSource::setData(WebCore::FragmentedSharedBuffer*, bool) 6 0x7ff2f3e96f35 WebCore::BitmapImageSource::resetData() 7 0x7ff2f3e96966 WebCore::BitmapImageSource::destroyDecodedData(bool) 8 0x7ff2f3e957ca WebCore::BitmapImage::destroyDecodedData(bool) 9 0x7ff2f397850b operator() 10 0x7ff2f3987e64 call 11 0x7ff2f3989923 WTF::Function<void (WebCore::CachedResource&)>::operator()(WebCore::CachedResource&) const 12 0x7ff2f3978169 WebCore::MemoryCache::forEachResource(WTF::Function<void (WebCore::CachedResource&)> const&) 13 0x7ff2f39785d0 WebCore::MemoryCache::destroyDecodedDataForAllImages() 14 0x7ff279995919 WebCore::Internals::destroyDecodedDataForAllImages() 15 0x7ff279ab5e65 operator() 16 0x7ff279b2f6e5 toJS<WebCore::IDLUndefined, WebCore::jsInternalsPrototypeFunction_destroyDecodedDataForAllImagesBody(JSC::JSGlobalObject*, JSC::CallFrame*, IDLOperation<JSInternals>::ClassParameter)::<lambda()> > 17 0x7ff279ab5f63 jsInternalsPrototypeFunction_destroyDecodedDataForAllImagesBody 18 0x7ff279b2f993 call<WebCore::jsInternalsPrototypeFunction_destroyDecodedDataForAllImagesBody> 19 0x7ff279ab5fcd jsInternalsPrototypeFunction_destroyDecodedDataForAllImages 20 0x7ff28ca08038 ??? WebKitWebProcess terminated (pid 50227) for reason: crash
274746@main (bug#265363) was touching ScalableImageDecoder recently?
274896@main reverted it. *** This bug has been marked as a duplicate of bug 269626 ***