Date: Tue, 6 Aug 2013 20:31:09 +0200 From: Oleg Nesterov <oleg@...hat.com> To: Andy Lutomirski <luto@...capital.net> Cc: security@...nel.org, oss-security@...ts.openwall.com, Petr Matousek <pmatouse@...hat.com>, "Eric W. Biederman" <ebiederm@...ssion.com>, Linus Torvalds <torvalds@...ux-foundation.org> Subject: Re: CLONE_NEWUSER local DoS On 08/06, Andy Lutomirski wrote: > > On Tue, Aug 6, 2013 at 9:47 AM, Oleg Nesterov <oleg@...hat.com> wrote: > > > > I'll send the patch, but perhaps there is something else. Eric? > > I think that's right. OTOH, it's not going to prevent this from OOMing: Aaaah. user_ns_cachep I guess? ns->parent logic, yes?? I convinced myself this should be fine but it seems you are right. IIUC, this needs another fix. Will try tomorrow. Not that I think this needs my help ;) Oleg.
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