"Memory Integrity Enforcement is built on the robust foundation provided by our secure memory allocators, coupled with Enhanced Memory Tagging Extension (EMTE) in synchronous mode, and supported by extensive Tag Confidentiality Enforcement policies,"
"The ability of MTE to detect memory corruption exploitation at the first dangerous access is a significant improvement in diagnostic and potential security effectiveness,"
"always-on memory safety protection"
Memory Integrity Enforcement (MIE) provides always-on memory safety protection across critical attack surfaces, covering the kernel and more than 70 userland processes. MIE is built on secure memory allocators and an enhanced EMTE operating in synchronous mode, reinforced by Tag Confidentiality Enforcement policies. The feature is implemented in iPhone models with Apple-designed A19 and A19 Pro chips to preserve performance while improving memory safety. EMTE originates from Arm’s MTE specification and already appears on other platforms such as Google Pixel devices and Windows 11, aiming to make zero-day exploitation harder.
Read at The Hacker News
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