From 5419228f632af830d9117c142a1c7c1a9708cc08 Mon Sep 17 00:00:00 2001 From: Egor Bychin Date: Mon, 11 Oct 2021 14:26:20 +0300 Subject: [PATCH] gtype: Fix pointer being dereferenced despite NULL check --- gobject/gtype.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/gobject/gtype.c b/gobject/gtype.c index 34f62ecba..26ec30b7b 100644 --- a/gobject/gtype.c +++ b/gobject/gtype.c @@ -3159,11 +3159,14 @@ g_type_class_peek_parent (gpointer g_class) g_return_val_if_fail (g_class != NULL, NULL); node = lookup_type_node_I (G_TYPE_FROM_CLASS (g_class)); + + g_return_val_if_fail (node != NULL, NULL); + /* We used to acquire a read lock here. That is not necessary, since * parent->data->class.class is constant as long as the derived class * exists. */ - if (node && node->is_classed && node->data && NODE_PARENT_TYPE (node)) + if (node->is_classed && node->data && NODE_PARENT_TYPE (node)) { node = lookup_type_node_I (NODE_PARENT_TYPE (node)); class = node->data->class.class;