From bac6a14d56534897d97a78f5c9c17eafcc1d2940 Mon Sep 17 00:00:00 2001 From: Hannes Frederic Sowa Date: Mon, 13 Mar 2017 00:01:30 +0100 Subject: [PATCH] dccp: fix memory leak during tear-down of unsuccessful connection request 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 Signed-off-by: Hannes Frederic Sowa Signed-off-by: David S. Miller --- net/dccp/ccids/ccid2.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/dccp/ccids/ccid2.c b/net/dccp/ccids/ccid2.c index f053198e730c4..5e3a7302f7747 100644 --- a/net/dccp/ccids/ccid2.c +++ b/net/dccp/ccids/ccid2.c @@ -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) -- 2.39.5