From 69de77c36a21b8c1c8c68b14b857f9e66ba634a9 Mon Sep 17 00:00:00 2001
From: Andrea Maria Piana <andrea.maria.piana@gmail.com>
Date: Wed, 9 Dec 2020 17:24:22 +0100
Subject: [PATCH] return error on nil image

---
 protocol/message_handler.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/protocol/message_handler.go b/protocol/message_handler.go
index 03b5f0100..6bd96959b 100644
--- a/protocol/message_handler.go
+++ b/protocol/message_handler.go
@@ -848,6 +848,11 @@ func (m *MessageHandler) HandleChatIdentity(state *ReceivedMessageState, ci prot
 
 			logger.Info(fmt.Sprintf("largest image : name '%s', size '%d'", name, iiSize))
 
+			if ci.Images[name] == nil {
+				logger.Info("image empty")
+				return errors.New("image empty")
+			}
+
 			dataURI, err := images.GetPayloadDataURI(ci.Images[name].Payload)
 			if err != nil {
 				return err