From 7db668e66f7d95f3b95970345a37a70c2e177c76 Mon Sep 17 00:00:00 2001
From: CwTCwT <cwt@chello.at>
Date: Sat, 9 Jun 2018 23:36:42 +0200
Subject: [PATCH] prevent zero sized array allocations

---
 code/BlenderCustomData.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/BlenderCustomData.cpp b/code/BlenderCustomData.cpp
index f52a4ca51..434a2c60b 100644
--- a/code/BlenderCustomData.cpp
+++ b/code/BlenderCustomData.cpp
@@ -155,7 +155,7 @@ namespace Assimp {
             }
 
             const CustomDataTypeDescription cdtd = customDataTypeDescriptions[cdtype];
-            if (cdtd.Read && cdtd.Create && cdtd.Destroy) {
+            if (cdtd.Read && cdtd.Create && cdtd.Destroy && cnt > 0) {
                 // allocate cnt elements and parse them from file
                 out.reset(cdtd.Create(cnt), cdtd.Destroy);
                 return cdtd.Read(out.get(), cnt, db);