Open Bug 1622989 Opened 4 years ago Updated 4 years ago

division by zero in src/layout/painting/DisplayItemClip.cpp:158 [@ mozilla::DisplayItemClip::IsRectClippedByRoundedCorner]

Categories

(Core :: Web Painting, defect, P3)

Product:
Core
Component:
Web Painting
Type:
defect

Tracking

()

Tracking Flags:
Tracking Status
firefox76 --- affected

People

(Reporter: tsmith, Unassigned)

References

(Blocks 2 open bugs)

Details

(Keywords: testcase)

Attachments

(1 file)

testcase.html
377 bytes, text/html
Details
Attached file testcase.html —

Reduced with m-c 20200316-62ab2cd02833

To enable this check add the following to your mozconfig:

ac_add_options --enable-undefined-sanitizer="float-divide-by-zero"

src/layout/painting/DisplayItemClip.cpp:158:45: runtime error: division by zero
    #0 0x7f6ccf9e0002 in mozilla::DisplayItemClip::IsRectClippedByRoundedCorner(nsRect const&) const src/layout/painting/DisplayItemClip.cpp
    #1 0x7f6ccfa1dd84 in mozilla::GetItemClip(nsDisplayItem const*, mozilla::DisplayItemClip&) src/layout/painting/FrameLayerBuilder.cpp:6834:13
    #2 0x7f6ccfa1dd84 in mozilla::FrameLayerBuilder::PaintItems(std::vector<mozilla::AssignedDisplayItem, std::allocator<mozilla::AssignedDisplayItem> >&, mozilla::gfx::IntRectTyped<mozilla::gfx::UnknownUnits> const&, gfxContext*, nsDisplayListBuilder*, nsPresContext*, mozilla::gfx::IntPointTyped<mozilla::gfx::UnknownUnits> const&, float, float) src/layout/painting/FrameLayerBuilder.cpp:7076:39
    #3 0x7f6ccfa1ff27 in mozilla::FrameLayerBuilder::DrawPaintedLayer(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*) src/layout/painting/FrameLayerBuilder.cpp:7282:19
    #4 0x7f6cc9df9378 in mozilla::layers::BasicPaintedLayer::PaintThebes(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*) src/gfx/layers/basic/BasicPaintedLayer.cpp:92:9
    #5 0x7f6cc9de95cb in mozilla::layers::BasicLayerManager::PaintSelfOrChildren(mozilla::layers::PaintLayerContext&, gfxContext*) src/gfx/layers/basic/BasicLayerManager.cpp:700:13
    #6 0x7f6cc9de7ab3 in mozilla::layers::BasicLayerManager::PaintLayer(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*) src/gfx/layers/basic/BasicLayerManager.cpp
    #7 0x7f6cc9de9434 in mozilla::layers::BasicLayerManager::PaintSelfOrChildren(mozilla::layers::PaintLayerContext&, gfxContext*) src/gfx/layers/basic/BasicLayerManager.cpp:723:7
    #8 0x7f6cc9de7ab3 in mozilla::layers::BasicLayerManager::PaintLayer(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*) src/gfx/layers/basic/BasicLayerManager.cpp
    #9 0x7f6cc9de4c26 in mozilla::layers::BasicLayerManager::EndTransactionInternal(void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*, mozilla::layers::LayerManager::EndTransactionFlags) src/gfx/layers/basic/BasicLayerManager.cpp:609:5
    #10 0x7f6ccf83dc62 in RegularFramePaintCallback::Paint(gfxContext&, nsIFrame*, mozilla::gfx::BaseMatrix<double> const&, mozilla::gfx::IntRectTyped<mozilla::gfx::UnknownUnits> const*, mozilla::image::imgDrawingParams&) src/layout/svg/nsSVGIntegrationUtils.cpp:431:20
    #11 0x7f6ccf7ef9fd in nsFilterInstance::BuildSourceImage(mozilla::gfx::DrawTarget*, mozilla::image::imgDrawingParams&, mozilla::gfx::FilterNode*, mozilla::gfx::FilterNode*, mozilla::gfx::RectTyped<mozilla::gfx::UnknownUnits, float> const&) src/layout/svg/nsFilterInstance.cpp:725:19
    #12 0x7f6ccf7e6266 in nsFilterInstance::Render(gfxContext*, mozilla::image::imgDrawingParams&, float) src/layout/svg/nsFilterInstance.cpp:792:3
    #13 0x7f6ccf7e5277 in nsFilterInstance::PaintFilteredFrame(nsIFrame*, gfxContext*, nsSVGFilterPaintCallback*, nsRegion const*, mozilla::image::imgDrawingParams&, float) src/layout/svg/nsFilterInstance.cpp:96:14
    #14 0x7f6ccf820f46 in nsSVGIntegrationUtils::PaintFilter(nsSVGIntegrationUtils::PaintFramesParams const&) src/layout/svg/nsSVGIntegrationUtils.cpp:1106:3
    #15 0x7f6ccfaea31e in nsDisplayFilters::PaintAsLayer(nsDisplayListBuilder*, gfxContext*, mozilla::layers::LayerManager*) src/layout/painting/nsDisplayList.cpp:10465:3
    #16 0x7f6ccfa1e19e in mozilla::PaintInactiveLayer(nsDisplayListBuilder*, mozilla::layers::LayerManager*, nsDisplayItem*, gfxContext*, gfxContext*) src/layout/painting/FrameLayerBuilder.cpp:4219:44
    #17 0x7f6ccfa1e19e in mozilla::FrameLayerBuilder::PaintItems(std::vector<mozilla::AssignedDisplayItem, std::allocator<mozilla::AssignedDisplayItem> >&, mozilla::gfx::IntRectTyped<mozilla::gfx::UnknownUnits> const&, gfxContext*, nsDisplayListBuilder*, nsPresContext*, mozilla::gfx::IntPointTyped<mozilla::gfx::UnknownUnits> const&, float, float) src/layout/painting/FrameLayerBuilder.cpp:7100:7
    #18 0x7f6ccfa1ff27 in mozilla::FrameLayerBuilder::DrawPaintedLayer(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*) src/layout/painting/FrameLayerBuilder.cpp:7282:19
    #19 0x7f6cc9df9378 in mozilla::layers::BasicPaintedLayer::PaintThebes(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*) src/gfx/layers/basic/BasicPaintedLayer.cpp:92:9 
    #20 0x7f6cc9de95cb in mozilla::layers::BasicLayerManager::PaintSelfOrChildren(mozilla::layers::PaintLayerContext&, gfxContext*) src/gfx/layers/basic/BasicLayerManager.cpp:700:13
    #21 0x7f6cc9de7ab3 in mozilla::layers::BasicLayerManager::PaintLayer(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*) src/gfx/layers/basic/BasicLayerManager.cpp
    #22 0x7f6cc9de9434 in mozilla::layers::BasicLayerManager::PaintSelfOrChildren(mozilla::layers::PaintLayerContext&, gfxContext*) src/gfx/layers/basic/BasicLayerManager.cpp:723:7
    #23 0x7f6cc9de7ab3 in mozilla::layers::BasicLayerManager::PaintLayer(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*) src/gfx/layers/basic/BasicLayerManager.cpp
    #24 0x7f6cc9de9434 in mozilla::layers::BasicLayerManager::PaintSelfOrChildren(mozilla::layers::PaintLayerContext&, gfxContext*) src/gfx/layers/basic/BasicLayerManager.cpp:723:7
    #25 0x7f6cc9de7ab3 in mozilla::layers::BasicLayerManager::PaintLayer(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*) src/gfx/layers/basic/BasicLayerManager.cpp
    #26 0x7f6cc9de4c26 in mozilla::layers::BasicLayerManager::EndTransactionInternal(void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*, mozilla::layers::LayerManager::EndTransactionFlags) src/gfx/layers/basic/BasicLayerManager.cpp:609:5
    #27 0x7f6ccf83dc62 in RegularFramePaintCallback::Paint(gfxContext&, nsIFrame*, mozilla::gfx::BaseMatrix<double> const&, mozilla::gfx::IntRectTyped<mozilla::gfx::UnknownUnits> const*, mozilla::image::imgDrawingParams&) src/layout/svg/nsSVGIntegrationUtils.cpp:431:20
    #28 0x7f6ccf7ef9fd in nsFilterInstance::BuildSourceImage(mozilla::gfx::DrawTarget*, mozilla::image::imgDrawingParams&, mozilla::gfx::FilterNode*, mozilla::gfx::FilterNode*, mozilla::gfx::RectTyped<mozilla::gfx::UnknownUnits, float> const&) src/layout/svg/nsFilterInstance.cpp:725:19
    #29 0x7f6ccf7e6266 in nsFilterInstance::Render(gfxContext*, mozilla::image::imgDrawingParams&, float) src/layout/svg/nsFilterInstance.cpp:792:3
    #30 0x7f6ccf7e5277 in nsFilterInstance::PaintFilteredFrame(nsIFrame*, gfxContext*, nsSVGFilterPaintCallback*, nsRegion const*, mozilla::image::imgDrawingParams&, float) src/layout/svg/nsFilterInstance.cpp:96:14
    #31 0x7f6ccf820f46 in nsSVGIntegrationUtils::PaintFilter(nsSVGIntegrationUtils::PaintFramesParams const&) src/layout/svg/nsSVGIntegrationUtils.cpp:1106:3
    #32 0x7f6ccfaea31e in nsDisplayFilters::PaintAsLayer(nsDisplayListBuilder*, gfxContext*, mozilla::layers::LayerManager*) src/layout/painting/nsDisplayList.cpp:10465:3
    #33 0x7f6ccfa1e19e in mozilla::PaintInactiveLayer(nsDisplayListBuilder*, mozilla::layers::LayerManager*, nsDisplayItem*, gfxContext*, gfxContext*) src/layout/painting/FrameLayerBuilder.cpp:4219:44
    #34 0x7f6ccfa1e19e in mozilla::FrameLayerBuilder::PaintItems(std::vector<mozilla::AssignedDisplayItem, std::allocator<mozilla::AssignedDisplayItem> >&, mozilla::gfx::IntRectTyped<mozilla::gfx::UnknownUnits> const&, gfxContext*, nsDisplayListBuilder*, nsPresContext*, mozilla::gfx::IntPointTyped<mozilla::gfx::UnknownUnits> const&, float, float) src/layout/painting/FrameLayerBuilder.cpp:7100:7
    #35 0x7f6ccfa1ff27 in mozilla::FrameLayerBuilder::DrawPaintedLayer(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*) src/layout/painting/FrameLayerBuilder.cpp:7282:19
    #36 0x7f6cc9df9378 in mozilla::layers::BasicPaintedLayer::PaintThebes(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*) src/gfx/layers/basic/BasicPaintedLayer.cpp:92:9
    #37 0x7f6cc9de95cb in mozilla::layers::BasicLayerManager::PaintSelfOrChildren(mozilla::layers::PaintLayerContext&, gfxContext*) src/gfx/layers/basic/BasicLayerManager.cpp:700:13
    #38 0x7f6cc9de7ab3 in mozilla::layers::BasicLayerManager::PaintLayer(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*) src/gfx/layers/basic/BasicLayerManager.cpp
    #39 0x7f6cc9de9434 in mozilla::layers::BasicLayerManager::PaintSelfOrChildren(mozilla::layers::PaintLayerContext&, gfxContext*) src/gfx/layers/basic/BasicLayerManager.cpp:723:7
    #40 0x7f6cc9de7ab3 in mozilla::layers::BasicLayerManager::PaintLayer(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*) src/gfx/layers/basic/BasicLayerManager.cpp
    #41 0x7f6cc9de9434 in mozilla::layers::BasicLayerManager::PaintSelfOrChildren(mozilla::layers::PaintLayerContext&, gfxContext*) src/gfx/layers/basic/BasicLayerManager.cpp:723:7
    #42 0x7f6cc9de7ab3 in mozilla::layers::BasicLayerManager::PaintLayer(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*) src/gfx/layers/basic/BasicLayerManager.cpp
    #43 0x7f6cc9de4c26 in mozilla::layers::BasicLayerManager::EndTransactionInternal(void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*, mozilla::layers::LayerManager::EndTransactionFlags) src/gfx/layers/basic/BasicLayerManager.cpp:609:5
    #44 0x7f6ccf83dc62 in RegularFramePaintCallback::Paint(gfxContext&, nsIFrame*, mozilla::gfx::BaseMatrix<double> const&, mozilla::gfx::IntRectTyped<mozilla::gfx::UnknownUnits> const*, mozilla::image::imgDrawingParams&) src/layout/svg/nsSVGIntegrationUtils.cpp:431:20
    #45 0x7f6ccf7ef9fd in nsFilterInstance::BuildSourceImage(mozilla::gfx::DrawTarget*, mozilla::image::imgDrawingParams&, mozilla::gfx::FilterNode*, mozilla::gfx::FilterNode*, mozilla::gfx::RectTyped<mozilla::gfx::UnknownUnits, float> const&) src/layout/svg/nsFilterInstance.cpp:725:19
    #46 0x7f6ccf7e6266 in nsFilterInstance::Render(gfxContext*, mozilla::image::imgDrawingParams&, float) src/layout/svg/nsFilterInstance.cpp:792:3
    #47 0x7f6ccf7e5277 in nsFilterInstance::PaintFilteredFrame(nsIFrame*, gfxContext*, nsSVGFilterPaintCallback*, nsRegion const*, mozilla::image::imgDrawingParams&, float) src/layout/svg/nsFilterInstance.cpp:96:14
    #48 0x7f6ccf820f46 in nsSVGIntegrationUtils::PaintFilter(nsSVGIntegrationUtils::PaintFramesParams const&) src/layout/svg/nsSVGIntegrationUtils.cpp:1106:3
    #49 0x7f6ccfaea31e in nsDisplayFilters::PaintAsLayer(nsDisplayListBuilder*, gfxContext*, mozilla::layers::LayerManager*) src/layout/painting/nsDisplayList.cpp:10465:3
    #50 0x7f6ccfa1e19e in mozilla::PaintInactiveLayer(nsDisplayListBuilder*, mozilla::layers::LayerManager*, nsDisplayItem*, gfxContext*, gfxContext*) src/layout/painting/FrameLayerBuilder.cpp:4219:44
    #51 0x7f6ccfa1e19e in mozilla::FrameLayerBuilder::PaintItems(std::vector<mozilla::AssignedDisplayItem, std::allocator<mozilla::AssignedDisplayItem> >&, mozilla::gfx::IntRectTyped<mozilla::gfx::UnknownUnits> const&, gfxContext*, nsDisplayListBuilder*, nsPresContext*, mozilla::gfx::IntPointTyped<mozilla::gfx::UnknownUnits> const&, float, float) src/layout/painting/FrameLayerBuilder.cpp:7100:7
    #52 0x7f6ccfa1ff27 in mozilla::FrameLayerBuilder::DrawPaintedLayer(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*) src/layout/painting/FrameLayerBuilder.cpp:7282:19
    #53 0x7f6cc9df9378 in mozilla::layers::BasicPaintedLayer::PaintThebes(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*) src/gfx/layers/basic/BasicPaintedLayer.cpp:92:9
    #54 0x7f6cc9de95cb in mozilla::layers::BasicLayerManager::PaintSelfOrChildren(mozilla::layers::PaintLayerContext&, gfxContext*) src/gfx/layers/basic/BasicLayerManager.cpp:700:13
    #55 0x7f6cc9de7ab3 in mozilla::layers::BasicLayerManager::PaintLayer(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*) src/gfx/layers/basic/BasicLayerManager.cpp
    #56 0x7f6cc9de9434 in mozilla::layers::BasicLayerManager::PaintSelfOrChildren(mozilla::layers::PaintLayerContext&, gfxContext*) src/gfx/layers/basic/BasicLayerManager.cpp:723:7
    #57 0x7f6cc9de7ab3 in mozilla::layers::BasicLayerManager::PaintLayer(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*) src/gfx/layers/basic/BasicLayerManager.cpp
    #58 0x7f6cc9de9434 in mozilla::layers::BasicLayerManager::PaintSelfOrChildren(mozilla::layers::PaintLayerContext&, gfxContext*) src/gfx/layers/basic/BasicLayerManager.cpp:723:7
    #59 0x7f6cc9de7ab3 in mozilla::layers::BasicLayerManager::PaintLayer(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*) src/gfx/layers/basic/BasicLayerManager.cpp
    #60 0x7f6cc9de4c26 in mozilla::layers::BasicLayerManager::EndTransactionInternal(void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*, mozilla::layers::LayerManager::EndTransactionFlags) src/gfx/layers/basic/BasicLayerManager.cpp:609:5
    #61 0x7f6ccf83dc62 in RegularFramePaintCallback::Paint(gfxContext&, nsIFrame*, mozilla::gfx::BaseMatrix<double> const&, mozilla::gfx::IntRectTyped<mozilla::gfx::UnknownUnits> const*, mozilla::image::imgDrawingParams&) src/layout/svg/nsSVGIntegrationUtils.cpp:431:20
    #62 0x7f6ccf7ef9fd in nsFilterInstance::BuildSourceImage(mozilla::gfx::DrawTarget*, mozilla::image::imgDrawingParams&, mozilla::gfx::FilterNode*, mozilla::gfx::FilterNode*, mozilla::gfx::RectTyped<mozilla::gfx::UnknownUnits, float> const&) src/layout/svg/nsFilterInstance.cpp:725:19
    #63 0x7f6ccf7e6266 in nsFilterInstance::Render(gfxContext*, mozilla::image::imgDrawingParams&, float) src/layout/svg/nsFilterInstance.cpp:792:3
    #64 0x7f6ccf7e5277 in nsFilterInstance::PaintFilteredFrame(nsIFrame*, gfxContext*, nsSVGFilterPaintCallback*, nsRegion const*, mozilla::image::imgDrawingParams&, float) src/layout/svg/nsFilterInstance.cpp:96:14
    #65 0x7f6ccf820f46 in nsSVGIntegrationUtils::PaintFilter(nsSVGIntegrationUtils::PaintFramesParams const&) src/layout/svg/nsSVGIntegrationUtils.cpp:1106:3
    #66 0x7f6ccfaea31e in nsDisplayFilters::PaintAsLayer(nsDisplayListBuilder*, gfxContext*, mozilla::layers::LayerManager*) src/layout/painting/nsDisplayList.cpp:10465:3
    #67 0x7f6ccfa1e19e in mozilla::PaintInactiveLayer(nsDisplayListBuilder*, mozilla::layers::LayerManager*, nsDisplayItem*, gfxContext*, gfxContext*) src/layout/painting/FrameLayerBuilder.cpp:4219:44
    #68 0x7f6ccfa1e19e in mozilla::FrameLayerBuilder::PaintItems(std::vector<mozilla::AssignedDisplayItem, std::allocator<mozilla::AssignedDisplayItem> >&, mozilla::gfx::IntRectTyped<mozilla::gfx::UnknownUnits> const&, gfxContext*, nsDisplayListBuilder*, nsPresContext*, mozilla::gfx::IntPointTyped<mozilla::gfx::UnknownUnits> const&, float, float) src/layout/painting/FrameLayerBuilder.cpp:7100:7
    #69 0x7f6ccfa1ff27 in mozilla::FrameLayerBuilder::DrawPaintedLayer(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*) src/layout/painting/FrameLayerBuilder.cpp:7282:19
    #70 0x7f6cc9e0dfe9 in mozilla::layers::ClientPaintedLayer::RenderLayerWithReadback(mozilla::layers::ReadbackProcessor*) src/objdir-ff-ubsan/dist/include/ClientLayerManager.h
    #71 0x7f6cc9e31c65 in mozilla::layers::ClientContainerLayer::RenderLayer() src/gfx/layers/client/ClientContainerLayer.h:53:29
    #72 0x7f6cc9e07336 in mozilla::layers::ClientLayerManager::EndTransactionInternal(void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*, mozilla::layers::LayerManager::EndTransactionFlags) src/gfx/layers/client/ClientLayerManager.cpp:352:13
    #73 0x7f6cc9e080e5 in mozilla::layers::ClientLayerManager::EndTransaction(void (*)(mozilla::layers::PaintedLayer*, gfxContext*, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, mozilla::layers::DrawRegionClip, mozilla::gfx::IntRegionTyped<mozilla::gfx::UnknownUnits> const&, void*), void*, mozilla::layers::LayerManager::EndTransactionFlags) src/gfx/layers/client/ClientLayerManager.cpp:415:3
    #74 0x7f6ccfa9ab64 in nsDisplayList::PaintRoot(nsDisplayListBuilder*, gfxContext*, unsigned int) src/layout/painting/nsDisplayList.cpp:3139:19
    #75 0x7f6ccf2a9301 in nsLayoutUtils::PaintFrame(gfxContext*, nsIFrame*, nsRegion const&, unsigned int, nsDisplayListBuilderMode, nsLayoutUtils::PaintFrameFlags) src/layout/base/nsLayoutUtils.cpp:4099:13
    #76 0x7f6ccf1ba312 in mozilla::PresShell::Paint(nsView*, nsRegion const&, mozilla::PaintFlags) src/layout/base/PresShell.cpp:6065:5
    #77 0x7f6ccebad21a in nsViewManager::ProcessPendingUpdatesPaint(nsIWidget*) src/view/nsViewManager.cpp:461:18
    #78 0x7f6ccebac824 in nsViewManager::ProcessPendingUpdatesForView(nsView*, bool) src/view/nsViewManager.cpp:396:22
    #79 0x7f6ccebaf1eb in nsViewManager::ProcessPendingUpdates() src/view/nsViewManager.cpp:1019:5
    #80 0x7f6ccf131b6c in nsRefreshDriver::Tick(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp) src/layout/base/nsRefreshDriver.cpp:2192:11
    #81 0x7f6ccf142ef1 in mozilla::RefreshDriverTimer::TickDriver(nsRefreshDriver*, mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp) src/layout/base/nsRefreshDriver.cpp:374:13
    #82 0x7f6ccf142ef1 in mozilla::RefreshDriverTimer::TickRefreshDrivers(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp, nsTArray<RefPtr<nsRefreshDriver> >&) src/layout/base/nsRefreshDriver.cpp:351:7
    #83 0x7f6ccf142b8d in mozilla::RefreshDriverTimer::Tick(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp) src/layout/base/nsRefreshDriver.cpp:368:5
    #84 0x7f6ccf141ad6 in mozilla::VsyncRefreshDriverTimer::RunRefreshDrivers(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp) src/layout/base/nsRefreshDriver.cpp:825:5
    #85 0x7f6ccf141ad6 in mozilla::VsyncRefreshDriverTimer::RefreshDriverVsyncObserver::TickRefreshDriver(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp) src/layout/base/nsRefreshDriver.cpp:743:16
    #86 0x7f6ccf140b1c in mozilla::VsyncRefreshDriverTimer::RefreshDriverVsyncObserver::NotifyVsync(mozilla::VsyncEvent const&) src/layout/base/nsRefreshDriver.cpp:642:9
    #87 0x7f6ccf9546b2 in mozilla::layout::VsyncChild::RecvNotify(mozilla::VsyncEvent const&) src/layout/ipc/VsyncChild.cpp:55:16
    #88 0x7f6cc8b91632 in mozilla::layout::PVsyncChild::OnMessageReceived(IPC::Message const&) src/objdir-ff-ubsan/ipc/ipdl/PVsyncChild.cpp:187:54
    #89 0x7f6cc87d2be7 in mozilla::ipc::PBackgroundChild::OnMessageReceived(IPC::Message const&) src/objdir-ff-ubsan/ipc/ipdl/PBackgroundChild.cpp:5970:32
    #90 0x7f6cc830996a in mozilla::ipc::MessageChannel::DispatchAsyncMessage(mozilla::ipc::ActorLifecycleProxy*, IPC::Message const&) src/ipc/glue/MessageChannel.cpp:2187:25
    #91 0x7f6cc8306540 in mozilla::ipc::MessageChannel::DispatchMessage(IPC::Message&&) src/ipc/glue/MessageChannel.cpp:2111:9
    #92 0x7f6cc8307ca6 in mozilla::ipc::MessageChannel::RunMessage(mozilla::ipc::MessageChannel::MessageTask&) src/ipc/glue/MessageChannel.cpp:1959:3
    #93 0x7f6cc8308724 in mozilla::ipc::MessageChannel::MessageTask::Run() src/ipc/glue/MessageChannel.cpp:1990:13
    #94 0x7f6cc6fbd7ae in nsThread::ProcessNextEvent(bool, bool*) src/xpcom/threads/nsThread.cpp:1220:14
    #95 0x7f6cc6fc63c6 in NS_ProcessNextEvent(nsIThread*, bool) src/xpcom/threads/nsThreadUtils.cpp:481:10
    #96 0x7f6cc8311bf3 in mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) src/ipc/glue/MessagePump.cpp:87:21
    #97 0x7f6cc81c0ec6 in MessageLoop::RunInternal() src/ipc/chromium/src/base/message_loop.cc:315:10
    #98 0x7f6cc81c0ec6 in MessageLoop::RunHandler() src/ipc/chromium/src/base/message_loop.cc:308:3
    #99 0x7f6cc81c0ec6 in MessageLoop::Run() src/ipc/chromium/src/base/message_loop.cc:290:3
    #100 0x7f6ccec6e62a in nsBaseAppShell::Run() src/widget/nsBaseAppShell.cpp:137:27
    #101 0x7f6cd2d6a0f2 in XRE_RunAppShell() src/toolkit/xre/nsEmbedFunctions.cpp:926:20
    #102 0x7f6cc81c0ec6 in MessageLoop::RunInternal() src/ipc/chromium/src/base/message_loop.cc:315:10
    #103 0x7f6cc81c0ec6 in MessageLoop::RunHandler() src/ipc/chromium/src/base/message_loop.cc:308:3
    #104 0x7f6cc81c0ec6 in MessageLoop::Run() src/ipc/chromium/src/base/message_loop.cc:290:3
    #105 0x7f6cd2d694a3 in XRE_InitChildProcess(int, char**, XREChildData const*) src/toolkit/xre/nsEmbedFunctions.cpp:761:34
    #106 0x564b4db531bd in content_process_main(mozilla::Bootstrap*, int, char**) src/browser/app/../../ipc/contentproc/plugin-container.cpp:56:28
    #107 0x564b4db5355d in main src/browser/app/nsBrowserApp.cpp:303:18
Flags: in-testsuite?

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The priority flag is not set for this bug.
:mattwoodrow, could you have a look please?

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Flags: needinfo?(matt.woodrow)
Flags: needinfo?(matt.woodrow)
Priority: -- → P3

Because this bug's Severity has not been changed from the default since it was filed, and it's Priority is P3 (Backlog,) indicating it has been triaged, the bug's Severity is being updated to S3 (normal.)

Severity: normal → S3
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