From b0a0139536261e5e449e1558c846e8af2e0e9395 Mon Sep 17 00:00:00 2001
From: Ram Pai <linuxram@us.ibm.com>
Date: Tue, 17 Jul 2018 06:51:09 -0700
Subject: [PATCH 8/9] selftests/powerpc: Fix core-pkey for default execute
permission change
References: bsc#1097577
Patch-mainline: queued
Git-repo: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
Git-commit: 5db26e8903deb111b303bd6e0cf304215e0b4fd9
Only when the key is allocated, its permission are enabled.
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
tools/testing/selftests/powerpc/ptrace/core-pkey.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tools/testing/selftests/powerpc/ptrace/core-pkey.c b/tools/testing/selftests/powerpc/ptrace/core-pkey.c
index ddbe0f2caf70..4c8560f07d2e 100644
--- a/tools/testing/selftests/powerpc/ptrace/core-pkey.c
+++ b/tools/testing/selftests/powerpc/ptrace/core-pkey.c
@@ -140,6 +140,10 @@ static int child(struct shared_info *info)
if (disable_execute)
info->iamr |= 1ul << pkeyshift(pkey1);
+ else
+ info->iamr &= ~(1ul << pkeyshift(pkey1));
+
+ info->iamr &= ~(1ul << pkeyshift(pkey2) | 1ul << pkeyshift(pkey3));
info->uamor |= 3ul << pkeyshift(pkey1) | 3ul << pkeyshift(pkey2);
--
2.13.7