[PATCH v3 8/9] powerpc/core-pkeys: execute-permission on keys are disabled by default
From: Ram Pai <hidden>
Date: 2018-07-17 13:51:42
Subsystem:
kernel selftest framework, the rest · Maintainers:
Shuah Khan, Shuah Khan, Linus Torvalds
Only when the key is allocated, its permission are enabled. Reviewed-by: Thiago Jung Bauermann <redacted> Signed-off-by: Ram Pai <redacted> --- tools/testing/selftests/powerpc/ptrace/core-pkey.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/tools/testing/selftests/powerpc/ptrace/core-pkey.c b/tools/testing/selftests/powerpc/ptrace/core-pkey.c
index 36bc312..b353d86 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);
--
1.7.1