1 files changed, 3 insertions, 0 deletions

diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index a367d15a21aa..d765fc53e74d 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -1758,6 +1758,9 @@ static void sctp_generate_fwdtsn(struct sctp_outq *q, __u32 ctsn)
         struct sctp_chunk *chunk;
         struct list_head *lchunk, *temp;
 
+        if (!asoc->peer.prsctp_capable)
+                return;
+
         /* PR-SCTP C1) Let SackCumAck be the Cumulative TSN ACK carried in the
          * received SACK.
          *