Unverified Commit 1b6ac823 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!11521 ipv6: prevent UAF in ip6_send_skb() 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zhang Changzhong <zhangchangzhong@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/IL4KHKEOVOVVPDA6VBF7NOD6KIKQEIUX/ 
 
https://gitee.com/src-openeuler/kernel/issues/IAOXZH 
 
Link:https://gitee.com/openeuler/kernel/pulls/11521

 

Reviewed-by: default avatarYue Haibing <yuehaibing@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents 4b403c99 7fa549c0

net/ipv6/ip6_output.c

+2 −0
Original line number Diff line number Diff line
@@ -1957,6 +1957,7 @@ int ip6_send_skb(struct sk_buff *skb) 
	struct rt6_info *rt = (struct rt6_info *)skb_dst(skb);

	int err;



	rcu_read_lock();

	err = ip6_local_out(net, skb->sk, skb);

	if (err) {

		if (err > 0)
@@ -1966,6 +1967,7 @@ int ip6_send_skb(struct sk_buff *skb) 
				      IPSTATS_MIB_OUTDISCARDS);

	}



	rcu_read_unlock();

	return err;

}