From 82e6e42b9ee62af0e39049e3d789457fe1a41281 Mon Sep 17 00:00:00 2001
From: Andrey Kleshchev <andreykproductengine@lindenlab.com>
Date: Tue, 12 Aug 2025 22:13:51 +0300
Subject: #4527 Crash trying to upload a huge image

Raw image permits only a 256 MB buffer so this isn't unexpected.
---
 indra/llimage/llimagedxt.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'indra/llimage/llimagedxt.cpp')

diff --git a/indra/llimage/llimagedxt.cpp b/indra/llimage/llimagedxt.cpp
index 6b960f9077..c3fd0c5aa8 100644
--- a/indra/llimage/llimagedxt.cpp
+++ b/indra/llimage/llimagedxt.cpp
@@ -329,6 +329,12 @@ bool LLImageDXT::encodeDXT(const LLImageRaw* raw_image, F32 time, bool explicit_
 {
     llassert_always(raw_image);
 
+    if (raw_image->isBufferInvalid())
+    {
+        setLastError("Invalid input, no buffer");
+        return false;
+    }
+
     S32 ncomponents = raw_image->getComponents();
     EFileFormat format;
     switch (ncomponents)
-- 
cgit v1.2.3