X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fsctp%2Fsm_statefuns.c;h=ead3f1b0ea3dad20e0844cc3b21be2ac2d75fa9e;hb=2b8ae728a8bada0cca10f30d3e7c52d384e8d5ad;hp=9e58144f4851129b7b9c6465c597a3a00bea0b46;hpb=cee4cca740d209bcb4b9857baa2253d5ba4e3fbe;p=pandora-kernel.git

diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 9e58144f4851..ead3f1b0ea3d 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -846,6 +846,7 @@ static sctp_disposition_t sctp_sf_heartbeat(const struct sctp_endpoint *ep,
 	hbinfo.param_hdr.length = htons(sizeof(sctp_sender_hb_info_t));
 	hbinfo.daddr = transport->ipaddr;
 	hbinfo.sent_at = jiffies;
+	hbinfo.hb_nonce = transport->hb_nonce;
 
 	/* Send a heartbeat to our peer.  */
 	paylen = sizeof(sctp_sender_hb_info_t);
@@ -1048,6 +1049,10 @@ sctp_disposition_t sctp_sf_backbeat_8_3(const struct sctp_endpoint *ep,
 		return SCTP_DISPOSITION_DISCARD;
 	}
 
+	/* Validate the 64-bit random nonce. */
+	if (hbinfo->hb_nonce != link->hb_nonce)
+		return SCTP_DISPOSITION_DISCARD;
+
 	max_interval = link->hbinterval + link->rto;
 
 	/* Check if the timestamp looks valid.  */
@@ -5278,7 +5283,6 @@ static int sctp_eat_data(const struct sctp_association *asoc,
 	datalen -= sizeof(sctp_data_chunk_t);
 
 	deliver = SCTP_CMD_CHUNK_ULP;
-	chunk->data_accepted = 1;
 
 	/* Think about partial delivery. */
 	if ((datalen >= asoc->rwnd) && (!asoc->ulpq.pd_mode)) {
@@ -5357,6 +5361,8 @@ static int sctp_eat_data(const struct sctp_association *asoc,
 	if (SCTP_CMD_CHUNK_ULP == deliver)
 		sctp_add_cmd_sf(commands, SCTP_CMD_REPORT_TSN, SCTP_U32(tsn));
 
+	chunk->data_accepted = 1;
+
 	/* Note: Some chunks may get overcounted (if we drop) or overcounted
 	 * if we renege and the chunk arrives again.
 	 */