From e7edbacd692ec688438eb7eef8ccb1cfd4647e29 Mon Sep 17 00:00:00 2001
From: Wojtek Figat <wojtek@figat.pl>
Date: Sun, 17 Oct 2021 16:00:55 +0200
Subject: [PATCH] Fix invalid memory write in `StringUtils::ConvertANSI2UTF16`
 on Unix if length is empty

---
 Source/Engine/Platform/Unix/UnixStringUtils.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Source/Engine/Platform/Unix/UnixStringUtils.cpp b/Source/Engine/Platform/Unix/UnixStringUtils.cpp
index c10fc8abb..28c63ed0c 100644
--- a/Source/Engine/Platform/Unix/UnixStringUtils.cpp
+++ b/Source/Engine/Platform/Unix/UnixStringUtils.cpp
@@ -313,6 +313,8 @@ static inline uint32 Utf8ToUtf32Codepoint(const char* src, int32 length)
 
 void StringUtils::ConvertANSI2UTF16(const char* from, Char* to, int32 len)
 {
+    if (len == 0)
+        return;
     const char* const u8end = from + len;
     const char* u8cur = from;
     char16_t* u16cur = to;