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Fix use after free bug in actor heap finalisation that can lead to a segfault #4522

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Fix use after free bug in actor heap finalisation that can lead to a segfault #4522

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Commits on Oct 7, 2024

  1. Add tests for small/large dependent finalisers use-after-free access

    @dipinhora
    dipinhora committed Oct 7, 2024
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  2. Temporarily zero out heap memory when destorying a chunk 

    this is needed to reliably trigger heap finaliser bug and can be
reverted after the bug is fixed.
    @dipinhora
    dipinhora committed Oct 7, 2024
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  3. Don't destroy any heap chunks until after all finalisers have run

    @dipinhora
    dipinhora committed Oct 7, 2024
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  4. Make heap dependent finaliser test logic more precise

    @dipinhora
    dipinhora committed Oct 7, 2024
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  5. Add release notes for heap dependent finaliser use after free bug

    @dipinhora
    dipinhora committed Oct 7, 2024
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