[PATCH] powerpc/book3s64/pkeys: Fix pkey_access_permitted w.r.t execute disable pkey

[Michael Ellerman]

On Sun, 12 Jul 2020 18:50:47 +0530, Aneesh Kumar K.V wrote:
> Even if the IAMR value deny the execute access, current kernel return true
> w.r.t pkey_access_permitted() for execute permission check if the AMR
> read pkey bit is cleared.
> 
> This results in repeated page fault loop with a test like below.
> 
>  #define _GNU_SOURCE
>  #include <errno.h>
>  #include <stdio.h>
>  #include <stdlib.h>
>  #include <signal.h>
>  #include <inttypes.h>
> 
> [...]

Applied to powerpc/fixes.

[1/1] powerpc/book3s64/pkeys: Fix pkey_access_permitted() for execute disable pkey
      https://git.kernel.org/powerpc/c/192b6a780598976feb7321ff007754f8511a4129

cheers