The Test PLA resolves complex privilege decisions in a single evaluation using 148 product terms, with a 3-delay-slot pipeline to overlap checks with useful work. The PTSAV/PTOVRR mechanism lets one shared subroutine serve dozens of callers with different validation rules.
The Sentry intercepts the untrusted code’s syscalls and handles them in user-space. It reimplements around 200 Linux syscalls in Go, which is enough to run most applications. When the Sentry actually needs to interact with the host to read a file, it makes its own highly restricted set of roughly 70 host syscalls. This is not just a smaller filter on the same surface; it is a completely different surface. The failure mode changes significantly. An attacker must first find a bug in gVisor’s Go implementation of a syscall to compromise the Sentry process, and then find a way to escape from the Sentry to the host using only those limited host syscalls.
。关于这个话题，爱思助手下载最新版本提供了深入分析
那晚聊天聊到最后，妹妹们说，她们很能体会我的感受。毕竟，她们对爷爷奶奶与外公外婆，也有亲疏之别。
I welcome issues, discussions, and pull requests. If you've run into Web streams problems I haven't covered, or if you see gaps in this approach, let me know. But again, the idea here is not to say "Let's all use this shiny new object!"; it is to kick off a discussion that looks beyond the current status quo of Web Streams and returns back to first principles.