From 0fa683f244a8ba2918d459d319bd5d860ef0cfd8 Mon Sep 17 00:00:00 2001
From: Norman Feske <norman.feske@genode-labs.com>
Date: Mon, 19 Dec 2022 11:01:32 +0100
Subject: [PATCH] vfs/cbe_trust_anchor: add sanity check

This patch adds a null-pointer check to the '_close_handle' method,
which triggers when using the vfs_cbe.run script in interactive mode.
---
 repos/gems/src/lib/vfs/cbe_trust_anchor/vfs.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/repos/gems/src/lib/vfs/cbe_trust_anchor/vfs.cc b/repos/gems/src/lib/vfs/cbe_trust_anchor/vfs.cc
index fb7f163787..8ae2ead4ef 100644
--- a/repos/gems/src/lib/vfs/cbe_trust_anchor/vfs.cc
+++ b/repos/gems/src/lib/vfs/cbe_trust_anchor/vfs.cc
@@ -544,6 +544,9 @@ class Trust_anchor
 
 		void _close_handle(Vfs::Vfs_handle **handle)
 		{
+			if (*handle == nullptr)
+				return;
+
 			(*handle)->close();
 			(*handle) = nullptr;
 		}