From c320888ff64d81e5e291eb5db683b000b9fe59a8 Mon Sep 17 00:00:00 2001
From: Jesus Fernandez <jesus.fernandez@qt.io>
Date: Wed, 24 Oct 2018 16:16:06 +0200
Subject: Check the pointer before dereferencing it to avoid crashes
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Change-Id: I238698a5f74b426761eb524d88d284176738d5ae
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@qt.io>
---
 src/plugins/platforms/webgl/qwebglcontext.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/plugins/platforms/webgl/qwebglcontext.cpp b/src/plugins/platforms/webgl/qwebglcontext.cpp
index 9d48d74..07378a2 100644
--- a/src/plugins/platforms/webgl/qwebglcontext.cpp
+++ b/src/plugins/platforms/webgl/qwebglcontext.cpp
@@ -1570,6 +1570,8 @@ QWebGLFunctionCall *QWebGLContext::createEvent(const QString &functionName, bool
     auto context = QOpenGLContext::currentContext();
     Q_ASSERT(context);
     const auto handle = static_cast<QWebGLContext *>(context->handle());
+    if (!handle)
+        return nullptr;
     auto integrationPrivate = QWebGLIntegrationPrivate::instance();
     const auto clientData = integrationPrivate->findClientData(handle->currentSurface());
     if (!clientData || !clientData->socket
-- 
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