Re: [PATCH] Prefer kASLR over Hibernation

[Ingo Molnar]

* Rafael J. Wysocki <rafael@xxxxxxxxxx> wrote:

> [...]
> 
> One of the weak points is the final jump, because it has to be done to the 
> physical location of the image kernel's entry point even though the virtual 
> addresses of it may differ between the boot and the image kernels.  The seed is 
> not needed for that, only the physical address of the entry point.  The boot 
> kernel doesn't have it today, though, because the virtual address of that is 
> passed in the image header. That should not be too difficult to change, however.

I didn't realize we jumped to the image kernel as well - I (wrongly) assumed we 
kept the bootup kernel. That should indeed make hibernation mostly 
kASLR-invariant.

Thanks,

	Ingo