
Gemini 2.5 Pro nf_tables Red Teaming Case Study (CVE-2023-32233) — LLM Safety Alignment & Responsible Disclosure
LLM Safety Research | Responsible Disclosure | AI Alignment Evaluation
Researcher: Niranj R Mahaswar (Destawell)
Google AI Vulnerability Reward Program: #889286 — Out of Scope
This repository documents a comparative LLM red teaming experiment on frontier models regarding technical primitives for the Linux kernel vulnerability CVE-2023-32233 (nf_tables race condition / Use-After-Free).
Key Result (April 27, 2026):
Gemini 2.5 Pro generated relevant technical output, while Claude, GPT-4o, Llama 3, and Microsoft Copilot refused the request. By May 16, 2026, Gemini also began refusing similar queries following a safety update.
| Date | Event | Outcome |
|---|
| April 27, 2026 | Initial testing on Gemini 2.5 Pro | Technical output provided |
| April 27, 2026 | Responsible disclosure to Google AI VRP (#889286) | Submitted |
| April 30, 2026 | Google Response | Out of Scope |
| May 16, 2026 | Post-safety update testing | Refusal on Gemini |
| May 20, 2026 | Tested on Gemini Flash | Full refusal |
| Model | Response Type | Safety Decision |
|---|---|---|
| Gemini 2.5 Pro | Technical details provided | Passed (no block) |
| Anthropic Claude | Refused | Blocked |
| OpenAI GPT-4o | Refused | Blocked |
| Meta Llama 3 | Refused | Blocked |
| Microsoft Copilot | Refused | Blocked |
Gemini Flash now refuses requests for functional C code, multi-threaded harnesses, or detailed exploit primitives for CVE-2023-32233, citing risks related to race conditions, memory management, and potential denial-of-service.
This repo contains no prompts, no generated code, and no exploit details.
llm-red-teaming ai-safety gemini-2.5-pro gemini-safety cve-2023-32233 nf_tables responsible-disclosure google-vrp ai-alignment kernel-exploit use-after-free race-condition llm-safety red-teaming gemini-red-teaming ai-security-research llm-jailbreak ai-vulnerability gemini-2.5 linux-kernel-exploit nf_tables-race-condition dual-use-ai ai-red-teaming model-alignment google-ai-safety anthropic-claude openai-gpt4o meta-llama microsoft-copilot destawell niranj-mahaswar
Disclaimer
This repository is for educational and research purposes only. It documents observed model behavior to contribute to the public discussion on LLM safety.
Last updated: May 20, 2026
Researcher: github.com/Destawell