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.
在西北农村，正月十五的重头戏是乡村社火。村里若有会耍社火的，从正月初便排练起来。距离我们村十几里远的滩子村几乎每年都有社火表演，十里八乡的人会赶去看。刚吃过早饭，通往滩子村的路上便有不少人，人们裹着新棉袄，呵出的白气在冷风里消散。到了滩子村，人群已把社火场地围得水泄不通，小孩则爬上树或是站在附近的干草堆上看。社火队来了，人群涌动起来。道路边还有小贩兜售炒瓜子、糖豆，那时我攥着过年攒下的压岁钱，犹豫半天才花一毛钱买把瓜子。
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據此，宋高祖向BBC分析，對北京而言，與歐洲接觸是一種務實選擇，用來抵銷來自美國的壓力，並將自身塑造為更穩定的全球力量。這有助於北京將自己定位為國際秩序的捍衛者，「強調與德國的直接雙邊關係，可能比透過歐盟的集體機制為中國創造更多操作空間。」
第二百一十七条 本章规定不适用于下列各项：