[PATCH v3 5/7] selinux: Add support for unprivileged mounts from user namespaces
James Morris
jmorris at namei.org
Tue Nov 17 16:02:25 PST 2015
On Tue, 17 Nov 2015, Seth Forshee wrote:
> Security labels from unprivileged mounts in user namespaces must
> be ignored. Force superblocks from user namespaces whose labeling
> behavior is to use xattrs to use mountpoint labeling instead.
> For the mountpoint label, default to converting the current task
> context into a form suitable for file objects, but also allow the
> policy writer to specify a different label through policy
> transition rules.
>
> Pieced together from code snippets provided by Stephen Smalley.
>
> Signed-off-by: Seth Forshee <seth.forshee at canonical.com>
> Acked-by: Stephen Smalley <sds at tycho.nsa.gov>
Acked-by: James Morris <james.l.morris at oracle.com>
--
James Morris
<jmorris at namei.org>
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