From 350ae815c213e17e6a00919cd9be5f8a275380d7 Mon Sep 17 00:00:00 2001
From: "Jesper K. Pedersen" <jesper.pedersen@kdab.com>
Date: Thu, 11 Dec 2025 15:05:15 +0100
Subject: [PATCH] Fix crash when converting a QPointF to a QPoint that was NAN

The code actually checked that the number was valid, but only after
the conversion.
---
 src/KDChart/Cartesian/DiagramFlavors/KDChartNormalPlotter_p.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/KDChart/Cartesian/DiagramFlavors/KDChartNormalPlotter_p.cpp b/src/KDChart/Cartesian/DiagramFlavors/KDChartNormalPlotter_p.cpp
index ef6d925b..57ebc78d 100644
--- a/src/KDChart/Cartesian/DiagramFlavors/KDChartNormalPlotter_p.cpp
+++ b/src/KDChart/Cartesian/DiagramFlavors/KDChartNormalPlotter_p.cpp
@@ -145,7 +145,7 @@ void NormalPlotter::paint(PaintContext *ctx)
                     m_private->addLabel(&lpc, sourceIndex, nullptr, pts, Position::NorthWest,
                                         Position::NorthWest, point.value);
 
-                    const bool lineValid = a.toPoint() != b.toPoint() && PaintingHelpers::isFinite(a);
+                    const bool lineValid = PaintingHelpers::isFinite(a) && a.toPoint() != b.toPoint();
                     if (lineValid) {
                         // data line
                         lineList.append(LineAttributesInfo(sourceIndex, a, b));