Fixed bug #21582: pcb->acked accounting can be wrong when ACKs arrive out-of-order

2026-08-08 00:23:39 +08:00 · 2007-11-26 19:08:39 +00:00
parent 181b68b01e
commit f57c2424cf
2 changed files with 7 additions and 0 deletions
--- a/src/core/tcp_in.c
+++ b/src/core/tcp_in.c
@@ -833,6 +833,9 @@ tcp_receive(struct tcp_pcb *pcb)
        pcb->rtime = 0;

      pcb->polltmr = 0;
+    } else {
+      /* Fix bug bug #21582: out of sequence ACK, didn't really ack anything */
+      pcb->acked = 0;
    }

    /* We go through the ->unsent list to see if any of the segments