From 6815138501b9f2a69e807bc3527d93583e633233 Mon Sep 17 00:00:00 2001
From: Luca Boccassi <bluca@debian.org>
Date: Fri, 15 May 2020 17:07:48 +0100
Subject: [PATCH] Problem: unfinished message can be leaked by client pipe

When a pipe processes a delimiter and is already not in active state but still
has an unfinished message, the message is leaked.

Solution: issue a rollback before losing the reference to the pipe.
---
 src/pipe.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/pipe.cpp b/src/pipe.cpp
index 69d5e4f6..b391b6ea 100644
--- a/src/pipe.cpp
+++ b/src/pipe.cpp
@@ -506,6 +506,7 @@ void zmq::pipe_t::process_delimiter ()
     if (_state == active)
         _state = delimiter_received;
     else {
+        rollback ();
         _out_pipe = NULL;
         send_pipe_term_ack (_peer);
         _state = term_ack_sent;