lkml.org 
[lkml]   [2012]   [May]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC PATCH 0/3] move the secure_computing call
On Thu, 24 May 2012, Will Drewry wrote:

> As is, the biggest benefit of this change is just setting consistent
> expectations in what the ptrace/seccomp interactions should be. The
> current ability for ptrace to "bypass" secure computing (by remapping
> allowed system calls) is not necessarily a problem, but it is not
> necessarily intuitive behavior.

Indeed -- while the purpose of seccomp is to reduce the attack surface of
the syscall interface, if a user allows ptrace, attackers will definitely
see that as an attack vector, if it allows them to increase that attack
surface.

It at least needs to be well-documented.

--
James Morris
<jmorris@namei.org>


\
 
 \ /
  Last update: 2012-05-25 02:01    [from the cache]
©2003-2011 Jasper Spaans