Messages in this thread | | | Date | Mon, 29 Sep 2014 22:43:33 +0400 | From | "Dmitry V. Levin" <> | Subject | Re: [RESEND v3 PATCH 3/3] vfs: make mounts and mountstats honor root dir like mountinfo does |
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On Mon, Sep 29, 2014 at 07:32:22PM +0100, Al Viro wrote: > On Mon, Sep 29, 2014 at 10:05:23PM +0400, Dmitry V. Levin wrote: > > Date: Wed, 17 Oct 2012 20:29:55 +0400 > > > > Change show_vfsmnt() and show_vfsstat() to show mountpoints relative > > to the root directory and skip mountpoints outside of chroot jail > > the same way as show_mountinfo() does. > > Sigh... Repeat after me: We Do Not Break Userland. Care to explain > why that change won't do just that?
This is definitely an information leak, and I cannot imagine how these unaccessible entries listed in /proc/self/mounts and /proc/self/mountstats could be used sanely.
-- ldv
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