That was found via the `CompositorManagerParentIPC` fuzz target. This target is unreliable and is a lot of maintenance and has been deprecated.
Bug 1746250 Comment 5 Edit History
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That was found via the [CompositorManagerParentIPC](https://searchfox.org/mozilla-central/source/gfx/layers/ipc/fuzztest/compositor_manager_parent_ipc_libfuzz.cpp) fuzz target. This target is unreliable and is a lot of maintenance and has been deprecated.