Messages in this thread | | | Date | Mon, 26 Jan 2015 22:50:23 -0800 | From | Andrew Morton <> | Subject | Re: [RFC][PATCH v2] procfs: Always expose /proc/<pid>/map_files/ and make it readable |
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On Tue, 27 Jan 2015 09:46:47 +0300 Cyrill Gorcunov <gorcunov@gmail.com> wrote:
> > There's one other problem here: we're assuming that the map_files > > implementation doesn't have bugs. If it does have bugs then relaxing > > permissions like this will create new vulnerabilities. And the > > map_files implementation is surprisingly complex. Is it bug-free? > > I didn't find any bugs in map-files (and we use it for long time already) > so I think it is safe.
You've been using map_files the way it was supposed to be used so no, any bugs won't show up. What happens if you don your evil black hat and use map_files in ways that weren't anticipated? Attack it?
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