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Date: Thu, 11 Sep 2008 17:44:27 +0200 From: Miklos Szeredi <miklos@...redi.hu> To: serue@...ibm.com CC: miklos@...redi.hu, ebiederm@...ssion.com, akpm@...ux-foundation.org, hch@...radead.org, viro@...IV.linux.org.uk, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: unprivileged mounts git tree On Thu, 11 Sep 2008, Serge E. Hallyn wrote: > Is it really a problem? The admin can always go ahead and kill the > user, which already takes care of any mounts in private namespaces, It's not necessarily against the admin, it could deny service to another user or a script running as root. The nasty thing is: an unprivileged user can cause unlink/rmdir to fail, even when otherwise it would have succeed. It's not a huge issue: unprivileged fuse mounts have the same effect, and nobody complained yet. But I think we have to deal with this in some way, not just leaving it to the admin. Thanks, Miklos -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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