diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index ed851574d07301ecc07f6920ffaee5be86635efd..3dba81c2eba360a615d9116e124cb36d86e89427 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -539,6 +539,9 @@ struct key *find_keyring_by_name(const char *name, bool skip_perm_check)
 				    &keyring_name_hash[bucket],
 				    type_data.link
 				    ) {
+			if (keyring->user->user_ns != current_user_ns())
+				continue;
+
 			if (test_bit(KEY_FLAG_REVOKED, &keyring->flags))
 				continue;