Messages in this thread | | | Date | Sun, 29 Jan 2006 11:32:12 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH] exec: Only allow a threaded init to exec from the thread_group_leader |
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Pavel Machek <pavel@ucw.cz> wrote: > > On Ne 29-01-06 02:48:31, Andrew Morton wrote: > > ebiederm@xmission.com (Eric W. Biederman) wrote: > > > > > > If process id namespaces become a reality init stops being > > > terribly special, and becomes something you may have several > > > of running at any one time. If one of those inits is compromised > > > by a hostile user I having the whole system go down so we can > > > avoid executing a cheap test sounds terribly wrong. That is > > > why I really care. > > > > Wouldn't it be better to do nothing until/unless there's some code in the > > kernel or init which actually needs the change? > > It is common to do init=/bin/bash, and I guess people are doing it > with all kinds of wonderful apps....
err, good point. And no reports of peculiar things happening with threading. Eric's check has the (slight) potential to cause some things to stop working though. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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