From: Cong Wang <xiyou.wangcong@gmail.com>
To: netdev@vger.kernel.org
Cc: Cong Wang <xiyou.wangcong@gmail.com>,
syzbot+fbb5b288c9cb6a2eeac4@syzkaller.appspotmail.com,
Jamal Hadi Salim <jhs@mojatatu.com>,
Jiri Pirko <jiri@resnulli.us>
Subject: [Patch net] ife: error out when nla attributes are empty
Date: Mon, 22 Jul 2019 21:43:00 -0700 [thread overview]
Message-ID: <20190723044300.16143-1-xiyou.wangcong@gmail.com> (raw)
act_ife at least requires TCA_IFE_PARMS, so we have to bail out
when there is no attribute passed in.
Reported-by: syzbot+fbb5b288c9cb6a2eeac4@syzkaller.appspotmail.com
Fixes: ef6980b6becb ("introduce IFE action")
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
---
net/sched/act_ife.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/net/sched/act_ife.c b/net/sched/act_ife.c
index 41d5398dd2f2..3578196d1600 100644
--- a/net/sched/act_ife.c
+++ b/net/sched/act_ife.c
@@ -481,6 +481,11 @@ static int tcf_ife_init(struct net *net, struct nlattr *nla,
int ret = 0;
int err;
+ if (!nla) {
+ NL_SET_ERR_MSG_MOD(extack, "IFE requires attributes to be passed");
+ return -EINVAL;
+ }
+
err = nla_parse_nested_deprecated(tb, TCA_IFE_MAX, nla, ife_policy,
NULL);
if (err < 0)
--
2.21.0
next reply other threads:[~2019-07-23 4:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-23 4:43 Cong Wang [this message]
2019-07-25 18:22 ` [Patch net] ife: error out when nla attributes are empty David Miller
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