The critical thing to understand is namespaces are visibility walls, not security boundaries. They prevent a process from seeing things outside its namespace. They do not prevent a process from exploiting the kernel that implements the namespace. The process still makes syscalls to the same host kernel. If there is a bug in the kernel’s handling of any syscall, the namespace boundary does not help.
Виктория Клабукова，这一点在Line官方版本下载中也有详细论述
[&:first-child]:overflow-hidden [&:first-child]:max-h-full"，这一点在快连下载安装中也有详细论述
通过网上的资料，流程见下图 ：，详情可参考搜狗输入法下载