Messages in this thread | | | Date | Wed, 26 Jan 2011 16:46:50 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH] use %pK for /proc/kallsyms and /proc/modules |
| |
On Wed, 26 Jan 2011 16:29:36 -0800 Kees Cook <kees.cook@canonical.com> wrote:
> > > Note that this changes %x to %p, so some legitimately 0 values in > > > /proc/kallsyms would have changed from 00000000 to "(null)". To avoid > > > this, "(null)" is not used when using the "K" format. Anything parsing > > > such addresses should have no problem with this change. (Thanks to Joe > > > Perches for the suggestion.) > > > > OK, so what applications did this patch just break? > > I'm not aware of any breakage as a result of this yet.
There will be some - there always are :( But users will only see problems if they've set kptr_restrict.
Which they shall do. How come we defaulted kptr_restrict to "true"?
| |