Messages in this thread | | | Date | Tue, 6 Dec 2005 18:39:56 +0000 (GMT) | From | Hugh Dickins <> | Subject | Re: [PATCH] /dev/mem validate mmap requests |
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On Mon, 5 Dec 2005, Bjorn Helgaas wrote: > Add a hook so architectures can validate /dev/mem mmap requests.
Not a comment on your patch at all, just an FYI in case you've missed it, and in case it makes any difference to your ia64 needs.
A side-effect of 2.6.15-rc's PageReserved changes is that a user with access to /dev/mem can now mmap any page of it, and see what's there rather than zeroes, whether or not it has been marked PageReserved.
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