Messages in this thread | | | From | "Edgecombe, Rick P" <> | Subject | Re: [PATCH v7 02/39] prctl: arch-agnostic prctl for shadow stack | Date | Tue, 12 Dec 2023 20:17:09 +0000 |
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On Wed, 2023-11-22 at 09:42 +0000, Mark Brown wrote: > These features are expected to be inherited by new threads and > cleared > on exec(), unknown features should be rejected for enable but > accepted > for locking (in order to allow for future proofing).
The reason why I stuck with arch_prctl when this came up is that CRIU (and probably other ptracers) needs a way to unlock via ptrace. ptrace arch_prctl() can do this. Did you have a plan for unlocking via ptrace?
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