[QEMU maintenance]

* Got involved offline via qemu-security@ for 2 bugs for 9.0, sent 2 patches: - virtio dma re-entrancy (use after free)

https://lore.kernel.org/qemu-devel/20240404191339.5688-1-philmd@linaro.org/ - hw sdhci (overflow)

https://lore.kernel.org/qemu-devel/20240404085549.16987-1-philmd@linaro.org/

* "Misc HW fixes for 9.0" pull request

[Single binary]

* Still working on sanitizing include/exec/, user emulation part

* Analyzed how to merge libtcg system/user code, removing the compile-time uses of CONFIG_SOFTMMU. Left as a peer programming exercise with rth at MAD24 :)