Re: [PATCH 4/7] allow killing tasks in your own or child userns

From: Serge E. Hallyn
Date: Fri Jan 14 2011 - 19:29:50 EST


Quoting Bastian Blank (bastian@xxxxxxxxxxxx):
> On Tue, Jan 11, 2011 at 01:31:52AM +0000, Serge E. Hallyn wrote:
> > Quoting Bastian Blank (bastian@xxxxxxxxxxxx):
> > > What is this flag used for anyway? I only see it used in the accounting
> > > stuff, and if every user can get it, it is not longer useful.
> > hm, I'm not sure... maybe noone is using it!
>
> This flag is from pre-git.
>
> The only information is:
> | #define ASU 0x02 /* ... used super-user privileges */
>
> However with your patches (or at least the goal), everyone is super-user
> in derived namespaces.

No, a task just sitting in a derived ns won't necessarily need/use
super-user privileges... (and, if we ever get far enough along, it
won't even necessarily have CAP_SYS_ADMIN/etc targeted to the parent
userns, bc it won't need those to do the unshares).

thanks,
-serge
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