From 421dab87e895a6fff40648e687c81ff5b32dd06e Mon Sep 17 00:00:00 2001
From: sg <goldsimon@gmx.de>
Date: Mon, 11 Jul 2016 21:43:39 +0200
Subject: [PATCH] fixed bug #48476 (TCP sent callback called wrongly due to
 picking up old pcb->acked

---
 CHANGELOG         | 4 ++++
 src/core/tcp_in.c | 1 +
 2 files changed, 5 insertions(+)

diff --git a/CHANGELOG b/CHANGELOG
index 66db593c..14874c90 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -321,6 +321,10 @@ HISTORY
 
   ++ Bugfixes:
 
+  2016-07-11: Simon Goldschmidt
+  * tcp_in.c: fixed bug #48476 (TCP sent callback called wrongly due to picking
+    up old pcb->acked
+
   2016-06-30: Simon Goldschmidt (original patch by Fabian Koch)
   * tcp_in.c: fixed bug #48170 (Vulnerable to TCP RST spoofing)
 
diff --git a/src/core/tcp_in.c b/src/core/tcp_in.c
index 375f9349..fbe1d1f3 100644
--- a/src/core/tcp_in.c
+++ b/src/core/tcp_in.c
@@ -398,6 +398,7 @@ tcp_input(struct pbuf *p, struct netif *inp)
               goto aborted;
             }
           }
+          pcb->acked = 0;
         }
         if (recv_flags & TF_CLOSED) {
           /* The connection has been closed and we will deallocate the