From: Pan Bian <bianpan2016@163.com>
To: Pablo Neira Ayuso <pablo@netfilter.org>,
Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>,
Florian Westphal <fw@strlen.de>,
"David S. Miller" <davem@davemloft.net>
Cc: Stefano Brivio <sbrivio@redhat.com>,
netfilter-devel@vger.kernel.org, coreteam@netfilter.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Pan Bian <bianpan2016@163.com>
Subject: [PATCH] netfilter: ipset: do not call ipset_nest_end after nla_nest_cancel
Date: Mon, 26 Nov 2018 18:42:10 +0800 [thread overview]
Message-ID: <1543228930-103509-1-git-send-email-bianpan2016@163.com> (raw)
In the error handling block, nla_nest_cancel(skb, atd) is called to
cancel the nest operation. But then, ipset_nest_end(skb, atd) is
unexpected called to end the nest operation. This patch calls the
ipset_nest_end only on the branch that nla_nest_cancel is
not called.
Fixes: 45040978c89("netfilter: ipset: Fix set:list type crash when
flush/dump set in parallel")
Signed-off-by: Pan Bian <bianpan2016@163.com>
---
net/netfilter/ipset/ip_set_list_set.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index 4eef55d..8da228d 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -531,8 +531,8 @@ list_set_list(const struct ip_set *set,
ret = -EMSGSIZE;
} else {
cb->args[IPSET_CB_ARG0] = i;
+ ipset_nest_end(skb, atd);
}
- ipset_nest_end(skb, atd);
out:
rcu_read_unlock();
return ret;
--
2.7.4
next reply other threads:[~2018-11-26 10:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-26 10:42 Pan Bian [this message]
2018-12-01 16:40 ` [PATCH] netfilter: ipset: do not call ipset_nest_end after nla_nest_cancel Jozsef Kadlecsik
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1543228930-103509-1-git-send-email-bianpan2016@163.com \
--to=bianpan2016@163.com \
--cc=coreteam@netfilter.org \
--cc=davem@davemloft.net \
--cc=fw@strlen.de \
--cc=kadlec@blackhole.kfki.hu \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=netfilter-devel@vger.kernel.org \
--cc=pablo@netfilter.org \
--cc=sbrivio@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).