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summa_tech
4 months ago
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ARM Memory Tagging: how it improves C/C++ memory s...
It's MTE4. The "enhancements" mostly make it easier for Apple developers to hack XNU into continuing to operate with MTE.
astrange
4 months ago
[–]
It's more like MTE was originally intended as a debugging tool (like ASan), and MTE4 makes it work as a security hardening measure.
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