Re: [GIT PULL] x86/kaslr for v3.14

[H. Peter Anvin]

On 01/26/2014 10:49 PM, Richard Weinberger wrote:
>>
>> No, because that information is available to user space unless we panic.
> 
> Didn't you mean non-root?
> I thought one has to set dmesg_restrict anyways if kASLR is used.
> 
> And isn't the offset available to perf too?
> Of course only for root, but still user space.
> 

For certain system security levels one want to protect even from a rogue
root.  In those cases, leaking that information via dmesg and perf isn't
going to work, either.

With lower security settings, by all means...

	-hpa

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