From 0efc6b00a1c395ca02b8d2aded907c0fb375960f Mon Sep 17 00:00:00 2001
From: csoler <csoler@users.sourceforge.net>
Date: Wed, 29 Jan 2020 21:02:46 +0100
Subject: [PATCH] fixed missing check in AvatarInfo against empty image data

---
 libretroshare/src/chat/p3chatservice.cc | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/libretroshare/src/chat/p3chatservice.cc b/libretroshare/src/chat/p3chatservice.cc
index 2f5df22fe..28ade2674 100644
--- a/libretroshare/src/chat/p3chatservice.cc
+++ b/libretroshare/src/chat/p3chatservice.cc
@@ -156,9 +156,17 @@ class p3ChatService::AvatarInfo
 
 	  void init(const unsigned char *jpeg_data,int size)
 	  {
-		  _image_size = size ;
-		  _image_data = (unsigned char*)rs_malloc(size) ;
-		  memcpy(_image_data,jpeg_data,size) ;
+          if(size == 0)
+          {
+              _image_size = 0;
+              _image_data = nullptr;
+          }
+          else
+		  {
+			  _image_size = size ;
+			  _image_data = (unsigned char*)rs_malloc(size) ;
+			  memcpy(_image_data,jpeg_data,size) ;
+		  }
 	  }
 	  AvatarInfo(const unsigned char *jpeg_data,int size)
 	  {