Otto Moerbeek wrote:
On Wed, Nov 04, 2009 at 03:45:33PM +0100, Justin Smith wrote:
Theo 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: Tue, 9 Oct 2007
Ref:
http://lkml.org/lkml/2007/10/9/241
http://james-morris.livejournal.com/26303.html
--
JS
Optional prevention is not worth a lot.
not exactly on topic but Pope Benedict XVI would likely agree with otto.
see, even the pope doesn't like linus.
