On Fri, Apr 5, 2013 at 1:43 PM, Borislav Petkov <b...@alien8.de> wrote:
> On Fri, Apr 05, 2013 at 01:19:39PM -0700, Julien Tinnes wrote:
>> I think it'd be perfectly ok for OOPS to print out the kernel base.
>
> Yeah, ok, this still would need some massaging of the oops output per
> script, but it shouldn't be a big problem.
>
> Also, you probably need to make clear in the oops itself that the
> addresses have been randomized. Or, is the mere presence of kernel base
> going to imply that?
There is already a hook in the patch that prints the offset:
+dump_kernel_offset(struct notifier_block *self, unsigned long v, void *p)
+{
+ pr_emerg("Kernel Offset: 0x%lx\n",
+ (unsigned long)&_text - __START_KERNEL);
...
+ atomic_notifier_chain_register(&panic_notifier_list,
+ &kernel_offset_notifier);
But of course, this can get improved.
-Kees
--
Kees Cook
Chrome OS Security
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