# Re: \[PATCH\] powerpc/44x: Implement Kernel Userspace Exec Protection (KUEP)

- From: Michael Ellerman \<hidden\>
- Date: 2021-06-18 04:23:05 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2021/06/1418622
- Thread: https://ratatoskr.run/linuxppc-dev/2021/06/1399358/t.md

```text
On Wed, 2 Jun 2021 06:42:10 +0000 (UTC), Christophe Leroy wrote:
> Powerpc 44x has two bits for exec protection in TLBs: one
> for user (UX) and one for superviser (SX).
> 
> Clear SX on user pages in TLB miss handlers to provide KUEP.

Applied to powerpc/next.

[1/1] powerpc/44x: Implement Kernel Userspace Exec Protection (KUEP)
      https://git.kernel.org/powerpc/c/10248dcba1205042a3a0ea65eb441030702d97cd

cheers
```