And it is totally on on *all* 90239490234873984 distros right?
On Wed, Nov 04, 2009 at 06:43:14PM +0200, Ross Cameron wrote:
> On Wed, Nov 4, 2009 at 5:54 PM, Theo de Raadt <[email protected]>
> wrote:
> >> > For the record, this particular problem was resolved in OpenBSD a
> >> while back, in 2008.
> >>
> >> Nice, but:
> >>
> >> "Since 2.6.23, it has been possible to prevent applications from
> >> mapping low pages (to prevent null pointer dereferencing in the
> >> kernel) via the /proc/sys/vm/mmap_min_addr sysctl, which sets the
> >> minimum address allowed for such mappings."
> >>
> >> 2.6.23 released: B Tue, 9 Oct 2007
> >>
> >> Ref:
> >> http://lkml.org/lkml/2007/10/9/241
> >> http://james-morris.livejournal.com/26303.html
> >
> > And that knob was turned off.
>
> Actually no it was turned on.
>
> Fedora 8 was released in Nov 2007 and to run certain Wine applications
> as non-root you had to disable the vm.mmap_min_addr sysctl.
> By default it was set to a value of 65536 and you had to change this to
> 0.
>
> This is well documented all over the Wine forums.
> I know because this drove me up the bend when they introduced this patch.
>
>
> --
> "Opportunity is most often missed by people because it is dressed in
> overalls and looks like work."
> Thomas Alva Edison
> Inventor of 1093 patents, including:
> The light bulb, phonogram and motion pictures.
