Automatic Bit- and Memory-Precise Verification of eBPF Code
Martin Bromberger,
Simon Schwarz,
Christoph Weidenbach
Abstract:We propose a translation from eBPF (extended Berkeley Packet Filter) code to CHC (Constrained Horn Clause sets) over the combined theory of bitvectors and arrays. eBPF is in particular used in the Linux kernel where user code is executed under kernel privileges. In order to protect the kernel, a well-known verifier statically checks the code for any harm and a number of research efforts have been performed to secure and improve the performance of the verifier. This paper is about verifying the functional prope… Show more
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