Re: [PATCH] capabilities: Ambient capability set V1

[Christoph Lameter]

On Tue, 24 Feb 2015, Serge E. Hallyn wrote:

> The other way to look at it then is that it's basically as though the
> privileged task (which has CAP_SETFCAP) could've just added fI=full to
> all binaries on the filesystem;  instead it's using the ambient set
> so that the risk from fI=full is contained to its own process tree.

The way that our internal patch works is to leave these things alone and
just check the ambient mask in the *capable*() functions. That way the
behavior of the existing cap bits does not change but the ambient caps
stay available. Apps have no surprises.



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