DejaVuzz: Disclosing Transient Execution Bugs with Dynamic Swappable Memory and Differential Information Flow Tracking Assisted Processor Fuzzing
Jinyan Xu, Yangye Zhou, Xingzhi Zhang, Yinshuai Li, Qinhan Tan, Yinqian Zhang, Yajin Zhou, Rui Chang, Wenbo Shen · 2025
Transient execution vulnerabilities have emerged as a critical threat to modern processors. Hardware fuzzing testing techniques have recently shown promising results in discovering transient execution bugs in large-scale out-of-order processor designs. However, their poor microarchitectural controllability and observability prevent them from effectively and efficiently detecting transient execution vulnerabilities.