!1547 binder: fix UAF caused by faulty buffer cleanup

Merge Pull Request from: @ci-robot 
 
PR sync from: Longlong Xia <xialonglong1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/MRUYLTWKNNGDLYTDA5J4NZTSS63O4NQD/ 
 
https://gitee.com/src-openeuler/kernel/issues/I7L0Z9 
 
Link:https://gitee.com/openeuler/kernel/pulls/1547

 

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