Re: [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:

quoted

quoted

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?