1 files changed, 2 insertions, 0 deletions

diff --git a/include/net/tcp.h b/include/net/tcp.h
index c00e7d51bb18..7717302cab91 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1523,6 +1523,8 @@ static inline void tcp_check_send_head(struct sock *sk, struct sk_buff *skb_unli
 {
         if (sk->sk_send_head == skb_unlinked)
                 sk->sk_send_head = NULL;
+        if (tcp_sk(sk)->highest_sack == skb_unlinked)
+                tcp_sk(sk)->highest_sack = NULL;
 }
 
 static inline void tcp_init_send_head(struct sock *sk)