1 files changed, 7 insertions, 1 deletions

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.
          */