Yajin Zhou

Yajin Zhou is listed as an author affiliated with Zhejiang University in the paper “MorFuzz: Fuzzing Processor via Runtime Instruction Morphing enhanced Synchronizable Co-simulation”. The paper’s author block lists Yajin Zhou with a Zhejiang University affiliation and the email address yajin_zhou@zju.edu.cn. [C1]

Research connection

Yajin Zhou is one of the authors of MorFuzz, a processor-fuzzing paper included in the Proceedings of the 32nd USENIX Security Symposium, held August 9–11, 2023, in Anaheim, California, USA. [C2]

The MorFuzz paper proposes a processor fuzzer intended to discover software-triggerable hardware bugs. Its core idea is to use runtime information to generate instruction streams with valid formats and meaningful semantics. The paper describes a new input structure for multi-level runtime mutation primitives, an instruction-morphing technique for dynamic mutation, and a synchronizable co-simulation approach with state synchronization to reduce implementation differences across microarchitectures. [C3]

Reported evaluation context

The MorFuzz evaluation targeted three open-source RISC-V processors: CVA6, Rocket, and BOOM. The paper reports discovering 17 new bugs, with 13 CVEs assigned. [C4]