cred_alloc_blank
extern struct cred *cred_alloc_blank(void);
LSM_HOOK(int, 0, cred_alloc_blank, struct cred *cred, gfp_t gfp)
LSM_HOOK_INIT(cred_alloc_blank, apparmor_cred_alloc_blank),
cred = cred_alloc_blank();
rc = call_int_hook(cred_alloc_blank, cred, gfp);
LSM_HOOK_INIT(cred_alloc_blank, smack_cred_alloc_blank),