Re: [PATCH] capabilities: Ambient capability set V1

Quoting Christoph Lameter (cl@linux.com):

On Mon, 23 Feb 2015, Serge E. Hallyn wrote:

quoted

quoted

I do not see a problem with dropping privilege since the ambient set
is supposed to be preserved across a drop of priviledge.

Because you're tricking the program into thinking it has dropped
the privilege, when in fact it has not.

So the cap was dropped from the cap perm set but it is still active
in the ambient set?

Right, and the legacy program doesn't know to check the new set.