PTSan: A Practical Memory Safety Sanitizer for C/C++ with Pointer-Object Authority

arXiv:2607.19246 · cs.CR · Submitted 2026-07-21 · Read on arXiv

Eli Davis, Eric Lahtinen, Michael Gordon

cs.CR

Submitted: 2026-07-21

Code: https://github.com/Aarno-Labs/PointerTagSanitizer

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Benchmark — 45× in this paper · explained in 2 episodes
• Allocator — 13× in this paper · explained in 1 episode
• Core — 8× in this paper · explained in 2 episodes
• Linear Address Masking — 8× in this paper
• Ablation — 7× in this paper · explained in 1 episode
• Analyzer — 1× in this paper · explained in 1 episode
• Benchmarking — 1× in this paper · explained in 3 episodes
• Decoupling — 1× in this paper · explained in 2 episodes
• Provenance — 1× in this paper · explained in 4 episodes
• Semantic Gap — 1× in this paper · explained in 2 episodes
• Trace — 1× in this paper · explained in 2 episodes

Sources

• LLM Agents can Autonomously Exploit One-day Vulnerabilities
• Teams of LLM Agents can Exploit Zero-Day Vulnerabilities
• Memory Tagging and how it improves C/C++ memory safety

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