Commit: 676d995d2965f8c452351f6e57191eb9ab901e44
Author: Jacques Lucke
Date:   Tue Aug 25 11:23:35 2020 +0200
Branches: blender-v2.83-release
https://developer.blender.org/rB676d995d2965f8c452351f6e57191eb9ab901e44

Fix T79915: crash when changing to white noise texture

Reviewers: brecht, OmarSquircleArt

Differential Revision: https://developer.blender.org/D8697

===================================================================

M       source/blender/editors/space_node/node_templates.c

===================================================================

diff --git a/source/blender/editors/space_node/node_templates.c 
b/source/blender/editors/space_node/node_templates.c
index 7d4095326f8..2d4aa197242 100644
--- a/source/blender/editors/space_node/node_templates.c
+++ b/source/blender/editors/space_node/node_templates.c
@@ -282,7 +282,9 @@ static void node_socket_add_replace(const bContext *C,
 
     /* also preserve mapping for texture nodes */
     if (node_from->typeinfo->nclass == NODE_CLASS_TEXTURE &&
-        node_prev->typeinfo->nclass == NODE_CLASS_TEXTURE) {
+        node_prev->typeinfo->nclass == NODE_CLASS_TEXTURE &&
+        /* White noise texture node does not have NodeTexBase. */
+        node_from->storage != NULL && node_prev->storage != NULL) {
       memcpy(node_from->storage, node_prev->storage, sizeof(NodeTexBase));
     }

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