From 32ee2ffc7d3ed530567b751c5f923ee331b778b9 Mon Sep 17 00:00:00 2001
From: Hans Goudey <h.goudey@me.com>
Date: Thu, 9 Jun 2022 15:40:07 +0200
Subject: [PATCH] Fix: Crash in selection paint brush with empty curves

---
 .../editors/sculpt_paint/curves_sculpt_selection_paint.cc      | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/source/blender/editors/sculpt_paint/curves_sculpt_selection_paint.cc b/source/blender/editors/sculpt_paint/curves_sculpt_selection_paint.cc
index 30793c45bd0..69615a3bfb4 100644
--- a/source/blender/editors/sculpt_paint/curves_sculpt_selection_paint.cc
+++ b/source/blender/editors/sculpt_paint/curves_sculpt_selection_paint.cc
@@ -83,6 +83,9 @@ struct SelectionPaintOperationExecutor {
     curves_id_ = static_cast<Curves *>(object_->data);
     curves_ = &CurvesGeometry::wrap(curves_id_->geometry);
     curves_id_->flag |= CV_SCULPT_SELECTION_ENABLED;
+    if (curves_->curves_num() == 0) {
+      return;
+    }
 
     brush_ = BKE_paint_brush_for_read(&ctx_.scene->toolsettings->curves_sculpt->paint);
     brush_radius_base_re_ = BKE_brush_size_get(ctx_.scene, brush_);