ESBMC-CHERI: towards verification of C programs for CHERI platforms with ESBMC

作者：Franz Brauße, Fedor Shmarov, Rafael Menezes, Mikhail R. Gadelha, Konstantin Korovin, Giles Reger, Lucas Carvalho Cordeiro · 年份：2022 · DOI：10.1145/3533767.3543289 · 被引用次数：11 · 研究领域：Security and Verification in Computing、Formal Methods in Verification、Radiation Effects in Electronics

This paper presents ESBMC-CHERI -- the first bounded model checker capable of formally verifying C programs for CHERI-enabled platforms. CHERI provides run-time protection for the memory-unsafe programming languages such as C/C++ at the hardware level. At the same time, it introduces new semantics to C programs, making some safe C programs cause hardware exceptions on CHERI-extended platforms. Hence, it is crucial to detect memory safety violations and compatibility issues ahead of compilation. However, there are no current verification tools for reasoning over CHERI-C programs. We demonstrate the work undertaken towards implementing support for CHERI-C in our state-of-the-art bounded model checker ESBMC and the plans for future work and extensive evaluation of ESBMC-CHERI. The ESBMC-CHERI demonstration and the source code are available at https://github.com/esbmc/esbmc/tree/cheri-clang.