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From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org, kuba@kernel.org
Subject: [PATCH net 2/9] netfilter: nf_conntrack_bridge: Fix memory leak when error
Date: Fri,  6 Aug 2021 13:52:00 +0200	[thread overview]
Message-ID: <20210806115207.2976-3-pablo@netfilter.org> (raw)
In-Reply-To: <20210806115207.2976-1-pablo@netfilter.org>

From: Yajun Deng <yajun.deng@linux.dev>

It should be added kfree_skb_list() when err is not equal to zero
in nf_br_ip_fragment().

v2: keep this aligned with IPv6.
v3: modify iter.frag_list to iter.frag.

Fixes: 3c171f496ef5 ("netfilter: bridge: add connection tracking system")
Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/bridge/netfilter/nf_conntrack_bridge.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/bridge/netfilter/nf_conntrack_bridge.c b/net/bridge/netfilter/nf_conntrack_bridge.c
index 8d033a75a766..fdbed3158555 100644
--- a/net/bridge/netfilter/nf_conntrack_bridge.c
+++ b/net/bridge/netfilter/nf_conntrack_bridge.c
@@ -88,6 +88,12 @@ static int nf_br_ip_fragment(struct net *net, struct sock *sk,
 
 			skb = ip_fraglist_next(&iter);
 		}
+
+		if (!err)
+			return 0;
+
+		kfree_skb_list(iter.frag);
+
 		return err;
 	}
 slow_path:
-- 
2.20.1


  parent reply	other threads:[~2021-08-06 11:52 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-06 11:51 [PATCH net 0/9] Netfilter fixes for net Pablo Neira Ayuso
2021-08-06 11:51 ` [PATCH net 1/9] netfilter: ipset: Limit the maximal range of consecutive elements to add/delete Pablo Neira Ayuso
2021-08-06 11:52 ` Pablo Neira Ayuso [this message]
2021-08-06 11:52 ` [PATCH net 3/9] netfilter: conntrack: collect all entries in one cycle Pablo Neira Ayuso
2021-08-06 13:27   ` Jakub Kicinski
2021-08-06 14:59     ` Pablo Neira Ayuso
2021-08-06 15:06       ` Jakub Kicinski
2021-08-06 11:52 ` [PATCH net 4/9] netfilter: nfnetlink_hook: strip off module name from hookfn Pablo Neira Ayuso
2021-08-06 11:52 ` [PATCH net 5/9] netfilter: nfnetlink_hook: missing chain family Pablo Neira Ayuso
2021-08-06 11:52 ` [PATCH net 6/9] netfilter: nfnetlink_hook: use the sequence number of the request message Pablo Neira Ayuso
2021-08-06 11:52 ` [PATCH net 7/9] netfilter: nfnetlink_hook: Use same family as " Pablo Neira Ayuso
2021-08-06 11:52 ` [PATCH net 8/9] netfilter: conntrack: remove offload_pickup sysctl again Pablo Neira Ayuso
2021-08-06 11:52 ` [PATCH net 9/9] netfilter: nfnetlink_hook: translate inet ingress to netdev Pablo Neira Ayuso
2021-08-06 15:11 [PATCH net 0/9,v2] Netfilter fixes for net Pablo Neira Ayuso
2021-08-06 15:11 ` [PATCH net 2/9] netfilter: nf_conntrack_bridge: Fix memory leak when error Pablo Neira Ayuso

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