Re: [RFC][PATCH v3] Unprivileged: Disable raising of privileges

From: Eric W. Biederman
Date: Thu Dec 31 2009 - 13:41:25 EST


"Andrew G. Morgan" <morgan@xxxxxxxxxx> writes:

> Since there is already independent support for disabling file
> capabilities (the privilege escalation part), I see these two
> mechanisms as separable.

I guess there is something that resembles support for disabling
privilege escalation. The problem is that it requires privilege to
use it.

I have no problem with expressing this in a fine grained manner internally
to the kernel but the user space interface needs to be atomic so that
we can enable this all without privilege.

Further I may be off but I think the implementation would be more
challenging than what I have already posted. That doesn't mean it
won't be more useful long term.

Eric
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