diff mbox series

[v3,8/9] powerpc/core-pkeys: execute-permission on keys are disabled by default

Message ID 1531835470-32691-9-git-send-email-linuxram@us.ibm.com (mailing list archive)
State Accepted
Commit 5db26e8903deb111b303bd6e0cf304215e0b4fd9
Headers show
Series powerpc/pkeys: fixes to pkeys | expand

Checks

Context Check Description
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Commit Message

Ram Pai July 17, 2018, 1:51 p.m. UTC 
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>
---
 tools/testing/selftests/powerpc/ptrace/core-pkey.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
diff mbox series

Patch

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);