diff --git a/security/keys/compat.c b/security/keys/compat.c
index 338b510..4c48e13 100644
--- a/security/keys/compat.c
+++ b/security/keys/compat.c
@@ -38,7 +38,7 @@
 
 	ret = compat_rw_copy_check_uvector(WRITE, _payload_iov, ioc,
 					   ARRAY_SIZE(iovstack),
-					   iovstack, &iov);
+					   iovstack, &iov, 1);
 	if (ret < 0)
 		return ret;
 	if (ret == 0)
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index eca5191..0b3f5d7 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -1065,7 +1065,7 @@
 		goto no_payload;
 
 	ret = rw_copy_check_uvector(WRITE, _payload_iov, ioc,
-				    ARRAY_SIZE(iovstack), iovstack, &iov);
+				    ARRAY_SIZE(iovstack), iovstack, &iov, 1);
 	if (ret < 0)
 		return ret;
 	if (ret == 0)