Messages in this thread |  | | | Date | Thu, 29 Nov 2007 22:08:42 +0000 | | From | Al Viro <> | | Subject | Re: Out of tree module using LSM |
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On Thu, Nov 29, 2007 at 03:56:28PM -0500, Valdis.Kletnieks@vt.edu wrote: > Yes, most of these schemes *can* be bypassed because some malicious code does a > mmap() or similar trick. But what is being overlooked here is that in most > cases, what is *desired* is a way to filter things being handled by *non* > malicious code. Yeah, sure, a shar archive can contain a binary that does evil > things - but if we stop /bin/cp from copying the file that has the evil in it, > it's a non-issue.
Then all you need is scan-on-commit with commit-on-close. Which requires no changes of anything that would run in kernel mode and no bothering with LSM whatsoever.
Incidentally, I would really love to see the threat profile we are talking about. I have some impressions in that area, but I would rather keep them to myself for now - I really want to see the answers. - 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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