Re: [PATCH] Authoritative hooks

From: Seth Arnold (sarnoldat_private)
Date: Wed Aug 22 2001 - 15:04:20 PDT

  • Next message: Chris Wright: "Re: Capability tests in netlink and oom_kill"

    On Wed, Aug 22, 2001 at 09:37:23AM -0400, Stephen Smalley wrote:
    > So, has anyone looked at the authoritative hooks patch yet?
    
    I am probably forgetting something obvious, but I can't recall why the
    change was suggested.
    
    Pro:
    	jmjones would like it
    Cons:
    	gives up a useful software engineering bug-resistence tool
    
    I vaguely recall that the discussion about authoritative hooks
    resurfaced at the same time SGI and WireX were at an impasse regarding
    the ordering of kernel checks and module checks. Crispin asked if the
    SGI team found your authoritative hooks useful for their own purposes,
    and I don't recall seeing any answer from the SGI team, nor do I recall
    any specific reasons why this would help SGI -- the kernel checks are
    still performed before calling the module's function; with this patch,
    the module is called no matter the kernel's opinion. I suppose that they
    could emulate the results of not performing the kernel checks through
    this technique, but the kernel checks will still get performed before
    calling the module.
    
    I'm sure someone at SGI would take the time to jump on this email if I
    were wrong in saying that this patch won't help SGI. :) I can't speak
    for "the official WireX position", but I would tend to think we would
    prefer to keep the bug resistent restrictive hooks in place.
    
    As for the actual patch itself, I didn't see anything wrong with it,
    if the decision is made to use authoritative hooks. :)
    
    Thanks Stephen.
    
    _______________________________________________
    linux-security-module mailing list
    linux-security-moduleat_private
    http://mail.wirex.com/mailman/listinfo/linux-security-module
    



    This archive was generated by hypermail 2b30 : Wed Aug 22 2001 - 15:06:13 PDT