Messages in this thread | | | Date | Tue, 5 Aug 2008 20:30:52 -0400 | From | Rik van Riel <> | Subject | Re: [malware-list] [RFC 0/5] [TALPA] Intro to a linux interfaceforon access scanning |
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On Tue, 05 Aug 2008 14:39:34 -0400 Eric Paris <eparis@redhat.com> wrote: > On Tue, 2008-08-05 at 11:27 -0700, Arjan van de Ven wrote:
> > but close is... very limited in value. Open is a discrete event > > traditionally associated withh permission checks. > > Close... not so. (And if you mmap memory, you can then close the file > > and still write to it via the mmap) > > Thankfully my implementation will invalidate that close time check and > caching result. It does the invalidating the same place we update mtime > and my understanding is that mmap has been updating mtime for quite a > while now.
Then isn't the close time check superfluous, since you do the checks at change time already?
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