Messages in this thread | | | Subject | Re: [RFC/PATCH] revoke/frevoke system calls V2 | From | Alan Cox <> | Date | Wed, 09 Aug 2006 19:36:45 +0100 |
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Ar Mer, 2006-08-09 am 20:00 +0200, ysgrifennodd Edgar Toernig: > But anyway, correct me if I'm wrong, revoke (V2) not simply removes the > pages from the mmaped area as truncating does (the vma stays); revoke > seems to completely remove the vma which is clearly a security bug. > Future mappings may silently get mapped into the area of the revoked > file without the app noticing it. It may then hand out data of the new > file still thinking it's sending the old one.
I agree with that point 100%.
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