Unverified Commit 728c3850 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!10033 ipv6: prevent possible NULL dereference in rt6_probe() 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zhengchao Shao <shaozhengchao@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/BI2UU7ALOT543XSMXYJ5AF7H2L6Y3EPT/ 
 
https://gitee.com/src-openeuler/kernel/issues/IACS4Q 
 
Link:https://gitee.com/openeuler/kernel/pulls/10033

 

Reviewed-by: default avatarYue Haibing <yuehaibing@huawei.com>
Reviewed-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
Signed-off-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
parents 6891240d 43190ffe

net/ipv6/route.c

+2 −0
Original line number Diff line number Diff line
@@ -546,6 +546,8 @@ static void rt6_probe(struct fib6_info *rt) 
	rcu_read_lock_bh();

	last_probe = READ_ONCE(rt->last_probe);

	idev = __in6_dev_get(dev);

	if (!idev)

		goto out;

	neigh = __ipv6_neigh_lookup_noref(dev, nh_gw);

	if (neigh) {

		if (neigh->nud_state & NUD_VALID)