!2419 ext4: fix rec_len verify error

Merge Pull Request from: @ci-robot 
 
PR sync from: Baokun Li <libaokun1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/5JNNVVXANIGNQNQQLFEDFED7K2T64LIU/ 
 
https://gitee.com/openeuler/kernel/issues/I7OXK8 
 
Link:https://gitee.com/openeuler/kernel/pulls/2419

 

Reviewed-by: zhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>