Re: Issue with clone() and CLONE_NEWUSER as unprivileged user

[Andy Lutomirski]

On 08/17/2014 10:35 PM, Marcel Holtmann wrote:
> Hi,
> 
> I am trying to use clone() and CLONE_NEWUSER for creating a new user namespace as an unprivileged user. I always get an operation not permitted error. However when I used fork() + unshare() as unprivileged user, I can create the new user namespace just fine.
> 
> Is there something obvious that I am missing? My understand is that CLONE_NEWUSER should not require any special capabilities. I tried the sample code from the manpage and also from LWN.net, but both give me the same error.

It works for me on 3.16 and 3.15 but not on 3.15.8-200.fc20.x86_64.  I'm
a bit confused.  What kernel are you using?

--Andy

> 
> Regards
> 
> Marcel
> 

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