Re: [PATCH 06/10] x86/cet: Add arch_prctl functions for shadow stack

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On Tue, Jun 19, 2018 at 10:20 AM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote:
>
>> On Jun 19, 2018, at 10:07 AM, Kees Cook <keescook@xxxxxxxxxxxx> wrote:
>>
>> Does it provide anything beyond what PR_DUMPABLE does?
>
> What do you mean?

I was just going by the name of it. I wasn't sure what "ptrace CET
lock" meant, so I was trying to understand if it was another "you
can't ptrace me" toggle, and if so, wouldn't it be redundant with
PR_SET_DUMPABLE = 0, etc.

-Kees

-- 
Kees Cook
Pixel Security




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