File LibVNCServer-CVE-2020-29260.patch of Package LibVNCServer.25843

diff --git a/libvncclient/vncviewer.c b/libvncclient/vncviewer.c
index d6b91f02b..0a1bdcf6a 100644
--- a/libvncclient/vncviewer.c
+++ b/libvncclient/vncviewer.c
@@ -534,6 +534,8 @@ void rfbClientCleanup(rfbClient* client) {
     client->clientData = next;
   }
 
+  free(client->vncRec);
+
   if (client->sock != RFB_INVALID_SOCKET)
     rfbCloseSocket(client->sock);
   if (client->listenSock != RFB_INVALID_SOCKET)