diff options
| -rw-r--r-- | net/ipv4/tcp_input.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 870f53afd363..c6109895bb5e 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -998,6 +998,11 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_ tp->recv_sack_cache[i].start_seq = start_seq; tp->recv_sack_cache[i].end_seq = end_seq; } + /* Clear the rest of the cache sack blocks so they won't match mistakenly. */ + for (; i < ARRAY_SIZE(tp->recv_sack_cache); i++) { + tp->recv_sack_cache[i].start_seq = 0; + tp->recv_sack_cache[i].end_seq = 0; + } first_sack_index = 0; if (flag) |