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SubjectRe: [PATCH 00/10] Control Flow Enforcement - Part (3)
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On 08/06/18 00:37, Yu-cheng Yu wrote:
> This series introduces CET - Shadow stack
>
> At the high level, shadow stack is:
>
> Allocated from a task's address space with vm_flags VM_SHSTK;
> Its PTEs must be read-only and dirty;
> Fixed sized, but the default size can be changed by sys admin.
>
> For a forked child, the shadow stack is duplicated when the next
> shadow stack access takes place.
>
> For a pthread child, a new shadow stack is allocated.
>
> The signal handler uses the same shadow stack as the main program.
>

Even with sigaltstack()?


Balbir Singh.

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