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netfilter: ipt_CLUSTERIP: put config struct if we can't increment ct refcount

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[ Upstream commit 8ae56822812ddedc26a152ab1916eb30120b4748 ]

This needs to put() the entry to avoid a resource leak in error path.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Florian Westphal 2018-02-16 12:49:32 +01:00 committed by Greg Kroah-Hartman
parent ff8c6751ec
commit 596816fabe
1 changed files with 6 additions and 2 deletions
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8
net/ipv4/netfilter/ipt_CLUSTERIP.c
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@ -492,12 +492,15 @@ static int clusterip_tg_check(const struct xt_tgchk_param *par)
return PTR_ERR(config);
}
}
cipinfo->config = config;
ret = nf_ct_netns_get(par->net, par->family);
if (ret < 0)
if (ret < 0) {
pr_info("cannot load conntrack support for proto=%u\n",
par->family);
clusterip_config_entry_put(par->net, config);
clusterip_config_put(config);
return ret;
}
if (!par->net->xt.clusterip_deprecated_warning) {
pr_info("ipt_CLUSTERIP is deprecated and it will removed soon, "
@ -505,6 +508,7 @@ static int clusterip_tg_check(const struct xt_tgchk_param *par)
par->net->xt.clusterip_deprecated_warning = true;
}
cipinfo->config = config;
return ret;
}