From 089b16002952a192a90edb677c7d4923c1b989f4 Mon Sep 17 00:00:00 2001
From: Joachim Wiberg <troglobit@gmail.com>
Date: Fri, 31 Oct 2025 16:59:30 +0100
Subject: [PATCH] confd: fix possible NULL pointer deref.

Found by Coverity Scan

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
---
 src/confd/src/infix-firewall.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/confd/src/infix-firewall.c b/src/confd/src/infix-firewall.c
index ebdb4539..c043b413 100644
--- a/src/confd/src/infix-firewall.c
+++ b/src/confd/src/infix-firewall.c
@@ -68,6 +68,9 @@ static void mark_interfaces_used(struct lyd_node *cfg, char **ifaces)
 {
 	struct lyd_node *node;
 
+	if (!ifaces)
+		return;
+
 	LYX_LIST_FOR_EACH(lyd_child(cfg), node, "interface") {
 		const char *ifname = lyd_get_value(node);