From bd6566a819bfbbed0a255bf48f7de4ab50970fed Mon Sep 17 00:00:00 2001
From: Isaac Connor <isaac@zoneminder.com>
Date: Sat, 8 May 2021 12:26:13 -0400
Subject: [PATCH] Have to clearpacket while holding the lock on snap. Otherwise
 it can get deleted the moment we unlock it.

---
 src/zm_monitor.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/zm_monitor.cpp b/src/zm_monitor.cpp
index 9c58a8ffb..8b977c8b6 100644
--- a/src/zm_monitor.cpp
+++ b/src/zm_monitor.cpp
@@ -2304,6 +2304,7 @@ bool Monitor::Analyse() {
     snap->image = nullptr;
   }
 
+  packetqueue.clearPackets(snap);
   packetqueue.unlock(packet_lock);
 
   if ( snap->image_index > 0 ) {
@@ -2314,7 +2315,6 @@ bool Monitor::Analyse() {
       UpdateAnalysisFPS();
   }
   shared_data->last_read_time = time(nullptr);
-  packetqueue.clearPackets(snap);
 
   return true;
 } // end Monitor::Analyse