From 8eaa3cfac96730f1bf53f7418625ff9181c60fea Mon Sep 17 00:00:00 2001
From: Jon Evans <jon@craftyjon.com>
Date: Sat, 11 Mar 2023 16:12:10 -0500
Subject: [PATCH] Do not try to process invalid ratsnest nodes

Fixes https://gitlab.com/kicad/code/kicad/-/issues/14254
---
 pcbnew/board.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pcbnew/board.cpp b/pcbnew/board.cpp
index 3f2a581f74..024e11e0e3 100644
--- a/pcbnew/board.cpp
+++ b/pcbnew/board.cpp
@@ -289,7 +289,8 @@ void BOARD::UpdateRatsnestExclusions()
     GetConnectivity()->RunOnUnconnectedEdges(
             [&]( CN_EDGE& aEdge )
             {
-                if( aEdge.GetSourceNode() && aEdge.GetTargetNode() )
+                if( aEdge.GetSourceNode() && aEdge.GetTargetNode()
+                    && aEdge.GetSourceNode()->Valid() && aEdge.GetTargetNode()->Valid() )
                 {
                     std::pair<KIID, KIID> ids = { aEdge.GetSourceNode()->Parent()->m_Uuid,
                                                   aEdge.GetTargetNode()->Parent()->m_Uuid };