Closed
Bug 968204
Opened 11 years ago
Closed 11 years ago
Faulty: ABORT: "Incompatibe surface type" in CanvasLayerComposite::Initialize under LayerTransactionParent::RecvUpdate, TColorLayerAttributes case
Categories
(Core :: Graphics, defect)
Tracking
()
RESOLVED
FIXED
mozilla30
People
(Reporter: bjacob, Assigned: bjacob)
References
(Blocks 1 open bug)
Details
Attachments
(1 file)
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37.15 KB,
text/plain
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Details |
Found by Christoph Diehl's "Faulty" fuzzer, see bug 777067
This seems like we're trying to reinterpret a CanvasLayer as... a ColorLayer?
Indeed we have:
enum LayerType {
TYPE_CANVAS,
TYPE_COLOR,
TYPE_CONTAINER,
TYPE_IMAGE,
TYPE_READBACK,
TYPE_REF,
TYPE_SHADOW,
TYPE_THEBES
};
So for Faulty to cause a CanvasLayer to be reinterpreted as a ColorLayer, all it would have to do would be to change a 0 into a 1, which it did a few times in time session.
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Assignee | |
Comment 1•11 years ago
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Classification: PLayerTransaction, wrong layer type, hard
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Assignee | |
Updated•11 years ago
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Depends on: PReinterpretCast
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Assignee | |
Comment 2•11 years ago
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Fixed by the landing of PLayerTransaction type checks before casting layers, bug 968833.
Assignee: nobody → bjacob
Status: NEW → RESOLVED
Closed: 11 years ago
Resolution: --- → FIXED
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Updated•11 years ago
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Target Milestone: --- → mozilla30
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Description
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