From c177cf8fddef0a59a898098e9725428af75ad485 Mon Sep 17 00:00:00 2001
From: Fernando Fernandez Mancera <ffmancera@riseup.net>
Date: Thu, 15 Dec 2022 17:17:38 +0100
Subject: [PATCH] nm-netns: skip nodev routes in platform signal callback

Platform signal callback could be trigger by nodev routes and they do
not have an ifindex. Skip the l3cfg notification for nodev routes.
---
 src/core/nm-netns.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/core/nm-netns.c b/src/core/nm-netns.c
index d14be2cc68..067418a16e 100644
--- a/src/core/nm-netns.c
+++ b/src/core/nm-netns.c
@@ -230,6 +230,11 @@ _platform_signal_cb(NMPlatform   *platform,
     const NMPlatformSignalChangeType change_type = change_type_i;
     L3CfgData                       *l3cfg_data;
 
+    if (ifindex <= 0) {
+        /* platform signal callback could be triggered by nodev routes, skip them */
+        return;
+    }
+
     l3cfg_data = g_hash_table_lookup(priv->l3cfgs, &ifindex);
     if (!l3cfg_data)
         return;