Messages in this thread | | | Date | Sun, 26 Jan 2014 22:51:06 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [GIT PULL] x86/kaslr for v3.14 |
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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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