From 16d7d1460d956adb17a59d5d992163398af1f481 Mon Sep 17 00:00:00 2001
From: Richard Geldreich <richgel99@protonmail.com>
Date: Mon, 20 Apr 2026 03:15:49 -0400
Subject: [PATCH] - Adding max supported texture size (16K) check to KTX2
 header parser

---
 transcoder/basisu_transcoder.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/transcoder/basisu_transcoder.cpp b/transcoder/basisu_transcoder.cpp
index 798f000..c4f1000 100644
--- a/transcoder/basisu_transcoder.cpp
+++ b/transcoder/basisu_transcoder.cpp
@@ -19581,6 +19581,13 @@ namespace basist
 			return false;
 		}
 
+		// Sanity check the dimensions
+		if ((m_header.m_pixel_width > BASISU_MAX_SUPPORTED_TEXTURE_DIMENSION) || (m_header.m_pixel_height > BASISU_MAX_SUPPORTED_TEXTURE_DIMENSION))
+		{
+			BASISU_DEVEL_ERROR("ktx2_transcoder::init: Texture is too large\n");
+			return false;
+		}
+
 		// Face count must be 1 or 6
 		if ((m_header.m_face_count != 1) && (m_header.m_face_count != 6))
 		{