From 1caf45cf62da1d4de288423ab188541e9a59e1e3 Mon Sep 17 00:00:00 2001
From: Stenzek <stenzek@gmail.com>
Date: Sat, 19 Apr 2025 23:56:35 +1000
Subject: [PATCH] SmallString: Fix possible non-null-termination in set_size()

---
 src/common/small_string.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/common/small_string.cpp b/src/common/small_string.cpp
index b30ffb228..80feac71b 100644
--- a/src/common/small_string.cpp
+++ b/src/common/small_string.cpp
@@ -893,6 +893,11 @@ void SmallStringBase::set_size(u32 new_size, bool shrink_if_smaller /*= false*/)
 {
   DebugAssert(new_size <= m_buffer_size);
   m_length = new_size;
+#if _DEBUG
+  std::memset(m_buffer + new_size, 0, m_buffer_size - new_size);
+#else
+  m_buffer[new_size] = 0;
+#endif
   if (shrink_if_smaller)
     shrink_to_fit();
 }