From d71817248621651dc44d0ba67a74cd05d5f9619c Mon Sep 17 00:00:00 2001
From: Robert Loehning <robert.loehning@qt.io>
Date: Thu, 20 Aug 2020 18:48:37 +0200
Subject: Initialize QSvgHandler with QBuffer instead of QByteArray

Reduces memory consumption significantly for huge files.

Fixes: oss-fuzz-24347
Pick-to: 5.15
Change-Id: Iebf58d5f73030336d219ad770e1d1d2798c10067
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
---
 src/svg/qsvgtinydocument.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/svg/qsvgtinydocument.cpp b/src/svg/qsvgtinydocument.cpp
index 12dd979..dd2c1ab 100644
--- a/src/svg/qsvgtinydocument.cpp
+++ b/src/svg/qsvgtinydocument.cpp
@@ -212,7 +212,10 @@ QSvgTinyDocument * QSvgTinyDocument::load(const QByteArray &contents)
     }
 #endif
 
-    QSvgHandler handler(contents);
+    QBuffer buffer;
+    buffer.setData(contents);
+    buffer.open(QIODevice::ReadOnly);
+    QSvgHandler handler(&buffer);
 
     QSvgTinyDocument *doc = nullptr;
     if (handler.ok()) {
-- 
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