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Isolated Execution Environment for eBPF
The post below is an update on a research project sponsored by the eBPF Foundation. It is the first in a series of posts about this research.
This project introduces a novel execution environment designed to isolate BPF programs, offering an alternative architectural solution to enhance the security and scalability of eBPF infrastructure. Several restrictions are imposed on the program to avoid the state explosion problem and ensure the analysis can finish constantly, including limiting the number of loops and branches. The code size and complexity of the full-path analysis have significantly increased over the years, making formal verification challenging and leading to design and implementation bugs.
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