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-rw-r--r--include/net/sctp/structs.h6
-rw-r--r--net/sctp/ipv6.c2
-rw-r--r--net/sctp/protocol.c3
3 files changed, 8 insertions, 3 deletions
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 80f71499b543..1aa585216f34 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -1121,6 +1121,12 @@ static inline void sctp_outq_cork(struct sctp_outq *q)
* sctp_input_cb is currently used on rx and sock rx queue
*/
struct sctp_input_cb {
+ union {
+ struct inet_skb_parm h4;
+#if IS_ENABLED(CONFIG_IPV6)
+ struct inet6_skb_parm h6;
+#endif
+ } header;
struct sctp_chunk *chunk;
struct sctp_af *af;
__be16 encap_port;
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 814754d7cab5..c3e89c776e66 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -1074,7 +1074,7 @@ static struct inet_protosw sctpv6_stream_protosw = {
static int sctp6_rcv(struct sk_buff *skb)
{
- memset(skb->cb, 0, sizeof(skb->cb));
+ SCTP_INPUT_CB(skb)->encap_port = 0;
return sctp_rcv(skb) ? -1 : 0;
}
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 41f287a13b54..6f2bbfeec3a4 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -843,7 +843,6 @@ static int sctp_ctl_sock_init(struct net *net)
static int sctp_udp_rcv(struct sock *sk, struct sk_buff *skb)
{
- memset(skb->cb, 0, sizeof(skb->cb));
SCTP_INPUT_CB(skb)->encap_port = udp_hdr(skb)->source;
skb_set_transport_header(skb, sizeof(struct udphdr));
@@ -1163,7 +1162,7 @@ static struct inet_protosw sctp_stream_protosw = {
static int sctp4_rcv(struct sk_buff *skb)
{
- memset(skb->cb, 0, sizeof(skb->cb));
+ SCTP_INPUT_CB(skb)->encap_port = 0;
return sctp_rcv(skb);
}