1 files changed, 4 insertions, 0 deletions
diff --git a/scene/resources/navigation_mesh.cpp b/scene/resources/navigation_mesh.cpp
index 84f3c23f77..0a25bb2ed1 100644
--- a/scene/resources/navigation_mesh.cpp
+++ b/scene/resources/navigation_mesh.cpp
@@ -31,6 +31,8 @@
 #include "navigation_mesh.h"
 
 void NavigationMesh::create_from_mesh(const Ref<Mesh> &p_mesh) {
+	ERR_FAIL_COND(p_mesh.is_null());
+
 	vertices = Vector<Vector3>();
 	clear_polygons();
 
@@ -90,6 +92,7 @@ uint32_t NavigationMesh::get_collision_mask() const {
 }
 
 void NavigationMesh::set_collision_mask_bit(int p_bit, bool p_value) {
+	ERR_FAIL_INDEX_MSG(p_bit, 32, "Collision mask bit must be between 0 and 31 inclusive.");
 	uint32_t mask = get_collision_mask();
 	if (p_value) {
 		mask |= 1 << p_bit;
@@ -100,6 +103,7 @@ void NavigationMesh::set_collision_mask_bit(int p_bit, bool p_value) {
 }
 
 bool NavigationMesh::get_collision_mask_bit(int p_bit) const {
+	ERR_FAIL_INDEX_V_MSG(p_bit, 32, false, "Collision mask bit must be between 0 and 31 inclusive.");
 	return get_collision_mask() & (1 << p_bit);
 }