!5253 tomoyo: fix UAF write bug in tomoyo_write_control()

Merge Pull Request from: @ci-robot 
 
PR sync from: felix <fuzhen5@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/LOK47VQCYFCVXADJVCBMJOQFDFFCEKPW/ 
 
https://gitee.com/src-openeuler/kernel/issues/I95LPF 
 
Link:https://gitee.com/openeuler/kernel/pulls/5253

 

Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>