1 files changed, 2 insertions, 1 deletions

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index ae60dd3faed0..823003eef3a2 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2062,6 +2062,7 @@ static int tcp_mtu_probe(struct sock *sk)
         nskb->ip_summed = skb->ip_summed;
 
         tcp_insert_write_queue_before(nskb, skb, sk);
+        tcp_highest_sack_replace(sk, skb, nskb);
 
         len = 0;
         tcp_for_write_queue_from_safe(skb, next, sk) {
@@ -2665,7 +2666,7 @@ static bool tcp_collapse_retrans(struct sock *sk, struct sk_buff *skb)
                 else if (!skb_shift(skb, next_skb, next_skb_size))
                         return false;
         }
-        tcp_highest_sack_combine(sk, next_skb, skb);
+        tcp_highest_sack_replace(sk, next_skb, skb);
 
         tcp_unlink_write_queue(next_skb, sk);