Messages in this thread | | | Date | Fri, 31 Mar 2006 11:25:14 -0500 | From | "Frank Ch. Eigler" <> | Subject | Re: RFC - Approaches to user-space probes |
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Hi -
On Fri, Mar 31, 2006 at 05:25:29PM +0530, Prasanna S Panchamukhi wrote: > [...] > > It's pretty clear that writing the dirtied pages to disk is an > > *undesirable* side-effect, and should be eliminated. [...] > > What would the typical situations where the text section in the > executable is mapped with 'MAP_SHARED'?
Even if such usage is not typical, if it is legal, it may open a vulnerability. Imagine an unprivileged attacker doing just such an mmap on some key shared library or executable, hoping that someone else puts user-kprobes in there.
- FChE [unhandled content-type:application/pgp-signature] | |