publications

2026

1. S&P

   GHost in the SHELL: A GPU-to-Host Memory Attack and Its Mitigation

   Sihyun Roh, Woohyuk Choi, Jaeyoung Chung, Yoochan Lee, Suhwan Song, and Byoungyoung Lee

   In IEEE Symposium on Security and Privacy (Oakland), May 2026
2. NDSS

   DirtyFree: Simplified Data-Oriented Programming in the Linux Kernel

   Yoochan Lee, Hyuk Kwon, and Thorsten Holz

   In Network and Distributed System Security Symposium (NDSS), Feb 2026

   PDF

2024

1. CCS

   PeTAL: Ensuring Access Control Integrity against Data-only Attacks on Linux

   Juhee Kim, Jinbum Park, Yoochan Lee, Chengyu Song, Taesoo Kim, and Byoungyoung Lee

   In ACM Conference on Computer and Communications Security (CCS), Oct 2024

2023

1. SEC

   Pspray: Timing Side-Channel based Linux Kernel Heap Exploitation Technique

   Yoochan Lee, Jinhan Kwak, Junesoo Kang, Yuseok Jeon, and Byoungyoung Lee

   In USENIX Security Symposium, Aug 2023

   PDF
2. EuroSys

   Diagnosing Kernel Concurrency Failures with AITIA

   Dae R. Jeong, Minkyu Jung, Yoochan Lee, Byoungyoung Lee, Insik Shin, and  Youngjin Kwon

   In European Conference on Computer Systems (EuroSys), May 2023
3. HITB

   Privilege Escalation Exploit using DOP in x86-64 macOS

   Yoochan Lee, Sangjun Song, Junoh Lee, and Jeongsu Choi

   In Hack In The Box Amsterdam 2023, Apr 2023

2022

1. BlackHat

   Perfect Spray: A Journey From Finding a New Type of Logical Flaw at Linux Kernel To Developing a New Heap Exploitation Technique

   Yoochan Lee, Jinhan Kwak, Junesoo Kang, Yuseok Jeon, and Byoungyoung Lee

   In BlackHat Europe 2022, Dec 2022

2021

1. SEC

   ExpRace: Exploiting Kernel Races through Raising Interrupts.

   Yoochan Lee, Changwoo Min, and Byoungyoung Lee

   In USENIX Security Symposium, Aug 2021

   PDF

2020

1. BlackHat

   Exploiting Kernel Races through Taming Thread Interleaving

   Yoochan Lee, Changwoo Min, and Byoungyoung Lee

   In BlackHat USA 2020, Aug 2020