From 484a360792f42b696baaacd4d6711c204b1ace50 Mon Sep 17 00:00:00 2001
From: Alexei Kotov <alexdobrohotov@yandex.ru>
Date: Thu, 18 Apr 2024 02:58:19 +0300
Subject: [PATCH] Add a safety measure for string loading in BGSM

---
 components/bgsm/stream.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/components/bgsm/stream.cpp b/components/bgsm/stream.cpp
index d8434fcb8a..00cc382d3f 100644
--- a/components/bgsm/stream.cpp
+++ b/components/bgsm/stream.cpp
@@ -41,6 +41,9 @@ namespace Bgsm
 
     std::string BGSMStream::getSizedString(size_t length)
     {
+        // Prevent potential memory allocation freezes; strings this long are not expected in BGSM
+        if (length > 1024)
+            throw std::runtime_error("Requested string length is too large: " + std::to_string(length));
         std::string str(length, '\0');
         mStream->read(str.data(), length);
         if (mStream->bad())