IntelMemoryProtectionExtensions - address-sanitizer - Discussion of Intel Memory Protection Extensions (MPX) and comparison with AddressSanitizer - AddressSanitizer: a fast memory error detector - Google Project Hosting:
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Intel MPX (Memnory Protection eXtensions) has false positives with atomic pointers.
Sigh: this is the big part that Intel gave up wrt my work: I had carefully figured out how to manipulate the bounds metadata atomically.
It should only be in hardware if atomicity is properly handled.