Messages in this thread | | | Date | Wed, 26 Sep 2007 19:54:15 +0930 | From | David Newall <> | Subject | Re: Chroot bug |
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Alan Cox wrote: >> Good call. Though I suppose, since it's used 24x7 to aid security on >> countless production servers, that security dwarfs testing. Still, >> debugging, yes that's valid. >> >> I don't suppose it makes and difference; whatever the purpose, a chroot >> that doesn't change the root is buggy. >> > > It does change the root, it just doesn't guarantee you can't change it > back - which is correct POSIX, Unix, SuS behaviour. So either everyone > else is wrong or you are.. I know who I am betting on >
Charming. They really say that, do they? Where? I find no such thing, and I looked. I did find Open Groups SuS which, similar to SCO's UNIX, says: > The dot-dot entry in the root directory is interpreted to mean the > root directory itself. Thus, dot-dot cannot be used to access files > outside the subtree rooted at the root directory.
I feel I've presented a good case that that it's a bug. You made a somewhat rude counter-claim, which I don't ascribe to malevolence. You're simply disinterested. Nobody else cares, so why expend effort on it, right? I'll let it drop, but it is a bug. - 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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