Re: [RFC]: madvise(2) and mincore(2) in 2.3.26
Chuck Lever (cel@monkey.org)
Wed, 17 Nov 1999 16:39:38 -0500 (EST)
On Wed, 17 Nov 1999, Pavel Machek wrote:
> > here's a snapshot of madvise, against kernel 2.3.26. i'd like some
> > comments and review, then i'll port it to a stable release of 2.3
> > (probably 2.3.29) for inclusion by Linus.
>
> You seem to split up vma's. Cant that be used by evil looser to eat
> precious kernel ram? (Imagine DoS attack: mmap 1Gig and madvise each
> page separately.)
you can orchestrate the same attack by mmapping 4K files over and over.
- Chuck Lever
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