Re: [PATCH v2] x86, kaslr: propagate base load address calculation

From: Kees Cook
Date: Tue Feb 17 2015 - 11:45:58 EST

On Tue, Feb 17, 2015 at 4:39 AM, Borislav Petkov <bp@xxxxxxxxx> wrote:
> On Tue, Feb 17, 2015 at 01:21:20PM +0100, Jiri Kosina wrote:
>> I don't have strong feelings either way. It seems slightly nicer
>> to have a predictable oops output format no matter the CONFIG_
>> options and command-line contents, but if you feel like seeing the
>> 'Kernel offset: 0' in 'nokaslr' and !CONFIG_RANDOMIZE_BASE cases is
>> unnecessary noise, feel free to make this change to my patch.
> Well, wouldn't it be wrong to print this line if kaslr is disabled?
> Because of the ambiguity in that case: that line could mean either we
> randomized to 0 or kaslr is disabled but you can't know that from the
> "0" in there, right?

Maybe it should say:

Kernel offset: disabled

for maximum clarity?


> --
> Regards/Gruss,
> Boris.
> ECO tip #101: Trim your mails when you reply.
> --

Kees Cook
Chrome OS Security
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