Bugfix: On Linux, if a port is unusable for any reason (e.g. if pcap_open failed), it is deleted - at this time, it should also be removed from the allPorts_ list otherwise subsequent traversal of the list accesses the freed LinuxPort object leading to crash.

Fixes #174

server/linuxport.cpp

@@ -81,6 +81,8 @@ LinuxPort::~LinuxPort()
 {
     qDebug("In %s", __FUNCTION__);
 
+    allPorts_.removeAll(this);
+
     if (monitor_->isRunning())
     {
         monitor_->stop();