lkml.org 
[lkml]   [2008]   [Feb]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: vmsplice exploits, stack protector and Makefiles
On Wed, 13 Feb 2008 16:29:00 +0100 Ingo Molnar wrote:

>
> * pageexec@freemail.hu <pageexec@freemail.hu> wrote:
>
> > patches to get CONFIG_CC_STACKPROTECTOR_ALL actually to work (it
> > includes the Makefile patch proposed in this thread already).
> >
> > note that the fix to ACPI is an actual stack corruption bug (caught by
> > ssp thanks to a lucky stack layout), due to the misuse of the pci
> > accessor functions, probably a whole-tree audit is in order for
> > similar bugs.
> >
> > note also that the vsyscall functions (more precisely, all the code
> > that goes into .vsyscall* sections) had better be separated into their
> > own .c files so that they can be compiled without -mcmodel=kernel and
> > use %fs for getting the ssp cookie, if ssp is desired at all there).
>
> thanks, i've picked up your patch into x86.git#mm and also made
> stackprotector-all default-enabled so that we get more test coverage of
> this critical security feature. x86.git#mm can be picked up via:
>
> http://people.redhat.com/mingo/x86.git/README
>
> head of the tree:
>
> ---------------->
> commit e1d96d3e489d02b12984fb3c755b0f9a9ae0fe5f
> Author: Ingo Molnar <mingo@elte.hu>
> Date: Wed Feb 13 16:15:34 2008 +0100
>
> x86: enable stack-protector by default
>
> also enable the rodata and nx tests.
> <----------------
>
> your patch booted fine here with stackprotector-all enabled.

Is it signed-off-by: pageexec ?

Couldn't that be a problem?

---
~Randy


\
 
 \ /
  Last update: 2008-02-13 17:33    [W:0.271 / U:0.116 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site