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netfilter: nf_conntrack_bridge: Fix memory leak when error 

[ Upstream commit 38ea9def5b62f9193f6bad96c5d108e2830ecbde ]

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: 3c171f496e ("netfilter: bridge: add connection tracking system")
Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yajun Deng 2021-07-29 16:20:21 +08:00 committed by Greg Kroah-Hartman
parent cd36a36ea4
commit b036452082
1 changed files with 6 additions and 0 deletions
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6
net/bridge/netfilter/nf_conntrack_bridge.c
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@ -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: