lsm_cred_alloc
int lsm_cred_alloc(struct cred *cred, gfp_t gfp);
if (lsm_cred_alloc((struct cred *)unrcu_pointer(current->cred),
int rc = lsm_cred_alloc(cred, gfp);
int rc = lsm_cred_alloc(new, gfp);