lkml.org 
[lkml]   [2006]   [Aug]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [RFC/PATCH] revoke/frevoke system calls V2
From
Date
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%.


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-08-09 20:19    [W:0.077 / U:0.604 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site