From 3f0f707d4b898a96e63e16c13a29f12be01d9b4c Mon Sep 17 00:00:00 2001
From: Mikhail Lappo <mikhail.lappo@lge.com>
Date: Thu, 7 May 2015 12:18:14 +0300
Subject: Prevent bad-ptrs deref in QNetworkConfigurationManagerPrivate

Prevent application to crash with segfault in Qt bearer thread.
Corrected hardly reproduceable bug, when
QNetworkConfigurationManagerPrivate in pollEngines slot dereferenced
null and bad pointers and caused crash

Task-number: QTBUG-44407
Change-Id: I2f0b11b2d10125a21a62588d76ad824f375e4a1d
Reviewed-by: Richard J. Moore <rich@kde.org>
---
 src/network/bearer/qnetworkconfigmanager_p.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/network/bearer/qnetworkconfigmanager_p.cpp b/src/network/bearer/qnetworkconfigmanager_p.cpp
index 6bbea1683c..b963aebbd5 100644
--- a/src/network/bearer/qnetworkconfigmanager_p.cpp
+++ b/src/network/bearer/qnetworkconfigmanager_p.cpp
@@ -75,6 +75,7 @@ QNetworkConfigurationManagerPrivate::~QNetworkConfigurationManagerPrivate()
     QMutexLocker locker(&mutex);
 
     qDeleteAll(sessionEngines);
+    sessionEngines.clear();
     if (bearerThread)
         bearerThread->quit();
 }
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