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dccp: fix memory leak during tear-down of unsuccessful connection request 

commit 72ef9c4125c7b257e3a714d62d778ab46583d6a3 upstream.

This patch fixes a memory leak, which happens if the connection request
is not fulfilled between parsing the DCCP options and handling the SYN
(because e.g. the backlog is full), because we forgot to free the
list of ack vectors.

Reported-by: Jianwen Ji <jiji@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Willy Tarreau <w@1wt.eu>
This commit is contained in:
Hannes Frederic Sowa 2017-03-13 00:01:30 +01:00 committed by syphyr
parent c3027d4fe1
commit 827a4b842e
1 changed files with 1 additions and 0 deletions
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net/dccp/ccids/ccid2.c
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@ -749,6 +749,7 @@ static void ccid2_hc_tx_exit(struct sock *sk)
for (i = 0; i < hc->tx_seqbufc; i++)
kfree(hc->tx_seqbuf[i]);
hc->tx_seqbufc = 0;
dccp_ackvec_parsed_cleanup(&hc->tx_av_chunks);
}
static void ccid2_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)