Unverified Commit 7b970383 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!1177 net/sched: flower: fix possible OOB write in fl_set_geneve_opt() 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zhengchao Shao <shaozhengchao@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/SK6QSFRPHOL2JH4U7D5UFNAWUTGI6TVU/ 
 
 
Link:https://gitee.com/openeuler/kernel/pulls/1177

 

Reviewed-by: default avatarYue Haibing <yuehaibing@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents 629cdf07 4cd177d4

net/sched/cls_flower.c

+3 −0
Original line number Diff line number Diff line
@@ -1080,6 +1080,9 @@ static int fl_set_geneve_opt(const struct nlattr *nla, struct fl_flow_key *key, 
	if (option_len > sizeof(struct geneve_opt))

		data_len = option_len - sizeof(struct geneve_opt);



	if (key->enc_opts.len > FLOW_DIS_TUN_OPTS_MAX - 4)

		return -ERANGE;



	opt = (struct geneve_opt *)&key->enc_opts.data[key->enc_opts.len];

	memset(opt, 0xff, option_len);

	opt->length = data_len / 4;