Demystifying the Secure Enclave Processor
LytVKz
LytVKz
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Address Space Layout - Objects<br />
• Objects are mapped from low to high virtual<br />
address<br />
▫ No randomization of (non-fixed) object mappings<br />
▫ Mapped address is always higher than <strong>the</strong> highest<br />
existing mapping<br />
• Object mappings are non-contiguous<br />
▫ Skips 0x4000 bytes between each mapping<br />
▫ Provides a way to catch out-of-bounds memory<br />
accesses