5 files changed, 14 insertions, 10 deletions

diff --git a/net/dccp/ccid.h b/net/dccp/ccid.h
index 21e55142dcd3..c37eeeaf5c6e 100644
--- a/net/dccp/ccid.h
+++ b/net/dccp/ccid.h
@@ -110,14 +110,14 @@ static inline int ccid_hc_tx_init(struct ccid *ccid, struct sock *sk)
 
 static inline void ccid_hc_rx_exit(struct ccid *ccid, struct sock *sk)
 {
-        if (ccid->ccid_hc_rx_exit != NULL &&
+        if (ccid != NULL && ccid->ccid_hc_rx_exit != NULL &&
             dccp_sk(sk)->dccps_hc_rx_ccid_private != NULL)
                 ccid->ccid_hc_rx_exit(sk);
 }
 
 static inline void ccid_hc_tx_exit(struct ccid *ccid, struct sock *sk)
 {
-        if (ccid->ccid_hc_tx_exit != NULL &&
+        if (ccid != NULL && ccid->ccid_hc_tx_exit != NULL &&
             dccp_sk(sk)->dccps_hc_tx_ccid_private != NULL)
                 ccid->ccid_hc_tx_exit(sk);
 }
diff --git a/net/dccp/input.c b/net/dccp/input.c
index 1b6b2cb12376..3454d5941900 100644
--- a/net/dccp/input.c
+++ b/net/dccp/input.c
@@ -375,6 +375,9 @@ static int dccp_rcv_respond_partopen_state_process(struct sock *sk,
         case DCCP_PKT_RESET:
                 inet_csk_clear_xmit_timer(sk, ICSK_TIME_DACK);
                 break;
+        case DCCP_PKT_DATA:
+                if (sk->sk_state == DCCP_RESPOND)
+                        break;
         case DCCP_PKT_DATAACK:
         case DCCP_PKT_ACK:
                 /*
@@ -393,7 +396,8 @@ static int dccp_rcv_respond_partopen_state_process(struct sock *sk,
                 dccp_sk(sk)->dccps_osr = DCCP_SKB_CB(skb)->dccpd_seq;
                 dccp_set_state(sk, DCCP_OPEN);
 
-                if (dh->dccph_type == DCCP_PKT_DATAACK) {
+                if (dh->dccph_type == DCCP_PKT_DATAACK ||
+                    dh->dccph_type == DCCP_PKT_DATA) {
                         dccp_rcv_established(sk, skb, dh, len);
                         queued = 1; /* packet was queued
                                        (by dccp_rcv_established) */
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index ae088d1347af..6298cf58ff9e 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -463,6 +463,7 @@ static int dccp_v4_send_response(struct sock *sk, struct request_sock *req,
         if (skb != NULL) {
                 const struct inet_request_sock *ireq = inet_rsk(req);
 
+                memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
                 err = ip_build_and_send_pkt(skb, sk, ireq->loc_addr,
                                             ireq->rmt_addr,
                                             ireq->opt);
@@ -647,6 +648,7 @@ int dccp_v4_send_reset(struct sock *sk, enum dccp_reset_codes code)
         if (skb != NULL) {
                 const struct inet_sock *inet = inet_sk(sk);
 
+                memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
                 err = ip_build_and_send_pkt(skb, sk,
                                             inet->saddr, inet->daddr, NULL);
                 if (err == NET_XMIT_CN)
diff --git a/net/dccp/output.c b/net/dccp/output.c
index 4786bdcddcc9..29250749f16f 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -62,10 +62,8 @@ int dccp_transmit_skb(struct sock *sk, struct sk_buff *skb)
                 
                 skb->h.raw = skb_push(skb, dccp_header_size);
                 dh = dccp_hdr(skb);
-                /*
-                 * Data packets are not cloned as they are never retransmitted
-                 */
-                if (skb_cloned(skb))
+
+                if (!skb->sk)
                         skb_set_owner_w(skb, sk);
 
                 /* Build DCCP header and checksum it. */
@@ -102,6 +100,7 @@ int dccp_transmit_skb(struct sock *sk, struct sk_buff *skb)
 
                 DCCP_INC_STATS(DCCP_MIB_OUTSEGS);
 
+                memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
                 err = ip_queue_xmit(skb, 0);
                 if (err <= 0)
                         return err;
@@ -243,7 +242,8 @@ int dccp_write_xmit(struct sock *sk, struct sk_buff *skb, long *timeo)
 
                 err = dccp_transmit_skb(sk, skb);
                 ccid_hc_tx_packet_sent(dp->dccps_hc_tx_ccid, sk, 0, len);
-        }
+        } else
+                kfree_skb(skb);
 
         return err;
 }
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index a1cfd0e9e3bc..a021c3422f67 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -402,8 +402,6 @@ int dccp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
          *     This bug was _quickly_ found & fixed by just looking at an OSTRA
          *     generated callgraph 8) -acme
          */
-        if (rc != 0)
-                goto out_discard;
 out_release:
         release_sock(sk);
         return rc ? : len;