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SubjectRe: [RFC][PATCH v2] procfs: Always expose /proc/<pid>/map_files/ and make it readable
On Tue, Jan 27, 2015 at 11:53:19AM -0800, Kees Cook wrote:
> >>
> >> Are mount namespaces handled in this output?
> >
> > Could you clarify this moment, i'm not sure i get it.
>
> I changed how I asked this question in my review of the documentation,
> but it looks like these symlinks aren't "regular" symlinks (that are
> up to the follower to have access to the file system path shown), but
> rather they bypass VFS. As a result, I'm wondering how things like
> mount namespaces might change this behavior: what is shown, the path
> from the perspective of the target, or from the viewer (which may be
> in separate mount namespaces).

I must admit I personally didn't investigating how mount namespaces
might itercat with map-files. Pavel, could you share the thoughts?


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