keys: distinguish per-uid keys in different namespaces

per-uid keys were looked by uid only.  Use the user namespace
to distinguish the same uid in different namespaces.

This does not address key_permission.  So a task can for instance
try to join a keyring owned by the same uid in another namespace.
That will be handled by a separate patch.

Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 0e04f72ef2d4..22a31582bfaa 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -365,7 +365,7 @@ static struct key *construct_key_and_link(struct key_type *type,
 
         kenter("");
 
-        user = key_user_lookup(current_fsuid());
+        user = key_user_lookup(current_fsuid(), current_user_ns());
         if (!user)
                 return ERR_PTR(-ENOMEM);