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authorHannes Frederic Sowa <hannes@stressinduktion.org>2017-03-13 00:01:30 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-04-18 07:55:54 +0200
commitd45d27eefc1476608d03cb73a1170ea71faf235b (patch)
tree6716e7f90d7eb8427e0fa06e48d59935ef4f52a3
parentd01d1106dd58661705e7b2289c9fceb4d02fa4e4 (diff)
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--net/dccp/ccids/ccid2.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/dccp/ccids/ccid2.c b/net/dccp/ccids/ccid2.c
index f053198e730c..5e3a7302f774 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)