!2530 [sync] PR-2411: netfilter: xt_sctp: validate the flag_info count

Merge Pull Request from: @openeuler-sync-bot 
 

Origin pull request: 
https://gitee.com/openeuler/kernel/pulls/2411 
 
PR sync from: Zhengchao Shao <shaozhengchao@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/VOWKFRLIAOTEK7CXGBGBMUBBFHLOYYFX/ 
 
https://gitee.com/src-openeuler/kernel/issues/I85CAQ 
 
Link:https://gitee.com/openeuler/kernel/pulls/2530

 

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