From: Dinghao Liu <dinghao.liu@zju.edu.cn>
To: dinghao.liu@zju.edu.cn, kjlu@umn.edu
Cc: Pablo Neira Ayuso <pablo@netfilter.org>,
Jozsef Kadlecsik <kadlec@netfilter.org>,
Florian Westphal <fw@strlen.de>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
netfilter-devel@vger.kernel.org, coreteam@netfilter.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] netfilter: Fix memleak in nf_nat_init
Date: Sat, 9 Jan 2021 20:01:21 +0800 [thread overview]
Message-ID: <20210109120121.15938-1-dinghao.liu@zju.edu.cn> (raw)
When register_pernet_subsys() fails, nf_nat_bysource
should be freed just like when nf_ct_extend_register()
fails.
Fixes: 1cd472bf036ca ("netfilter: nf_nat: add nat hook register functions to nf_nat")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
---
net/netfilter/nf_nat_core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c
index ea923f8cf9c4..b7c3c902290f 100644
--- a/net/netfilter/nf_nat_core.c
+++ b/net/netfilter/nf_nat_core.c
@@ -1174,6 +1174,7 @@ static int __init nf_nat_init(void)
ret = register_pernet_subsys(&nat_net_ops);
if (ret < 0) {
nf_ct_extend_unregister(&nat_extend);
+ kvfree(nf_nat_bysource);
return ret;
}
--
2.17.1
next reply other threads:[~2021-01-09 12:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-09 12:01 Dinghao Liu [this message]
2021-01-09 12:12 ` [PATCH] netfilter: Fix memleak in nf_nat_init Florian Westphal
2021-01-10 8:39 ` Pablo Neira Ayuso
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