For full conference details, see the website: http://llvm.org/devmtg/2019-10/
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Wednesday, October 23 • 11:55am - 12:30pm
Mitigating Undefined Behavior: security mitigations through automatic variable initialization

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clang recently started supporting automatic variable initialization, where it unconditionally initializes stack variables. It addresses concrete issues in security-related C and C++ applications, and serves as a last-defense guardrail against some stack use-after-free and memory disclosures. We’ll dive into how this removes sharp edges in C-based languages, what optimizations are required to make this option palatable, and what current overheads look like.

avatar for JF Bastien

JF Bastien

JF is a compiler engineer. He leads C++ development at Apple.

Wednesday October 23, 2019 11:55am - 12:30pm PDT
General Session (LL20ABC)