Workshops Archive

Threads of Trouble: Unveiling GPU Software and Hardware Security Flaws

Workshop: 4th International Workshop on Cyber Security in High Performance Computing (S-HPC)

Authors: Yanan Guo (University of Rochester)

Abstract: Modern computing systems face significant security challenges. While vulnerabilities in CPUs have been extensively studied, GPUs--an increasingly important component of today's computing platforms--have received much less attention. In this talk, I will present our recent studies that aim to bridge this gap. In the first part, I will discuss our findings on GPU memory management systems and demonstrate how weaknesses in their design can be exploited to compromise GPU applications and, in some cases, even CPU applications. In the second part, I will introduce hardware side channels on modern GPUs and show that, despite the adoption of hardware isolation mechanisms, powerful side-channel attacks can still be launched, which pose serious privacy risks to applications such as video games. Finally, I will conclude the talk with a brief discussion of potential countermeasures and directions for future research in GPU security.

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