From 54a359beda72c80e9e4511bdd84f4ab9eefef05c Mon Sep 17 00:00:00 2001
From: Jakub Szewczyk <git@kubasz.xyz>
Date: Tue, 13 Jul 2021 15:38:39 +0100
Subject: [PATCH] Fix segmentation fault on big message serialization

---
 src/util/func.cpp | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/util/func.cpp b/src/util/func.cpp
index e46f1e0c9..1d2bcdf00 100644
--- a/src/util/func.cpp
+++ b/src/util/func.cpp
@@ -14,10 +14,8 @@ namespace faabric::util {
 std::vector<uint8_t> messageToBytes(const faabric::Message& msg)
 {
     size_t byteSize = msg.ByteSizeLong();
-    uint8_t buffer[byteSize];
-    msg.SerializeToArray(buffer, (int)byteSize);
-
-    std::vector<uint8_t> inputData(buffer, buffer + byteSize);
+    std::vector<uint8_t> inputData(byteSize, 0);
+    msg.SerializeToArray(inputData.data(), (int)inputData.size());
 
     return inputData;
 }