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From 3a040f04f5c32639092ea5e427675df2a1830704 Mon Sep 17 00:00:00 2001
From: Beniamino Galvani <bgalvani@redhat.com>
Date: Thu, 13 Sep 2018 14:50:32 +0200
Subject: [PATCH] dns: dnsmasq: avoid crash when no reverse domains exist
ip_data->domains.reverse can be NULL when the device is being removed
and has no IP configuration for a short moment.
Fixes: 6409e7719c0341baedfdb063366457e390894ed9
https://bugzilla.gnome.org/show_bug.cgi?id=797022
(cherry picked from commit f0c075f05082e4c77fac75ad06d303e7538e4fc7)
(cherry picked from commit 8309a7a6964d3677e0705046fb2f91810ef3ab65)
(cherry picked from commit 3abddc3328e7896f7af137ec9d74db86c27b3302)
---
src/dns/nm-dns-dnsmasq.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/src/dns/nm-dns-dnsmasq.c b/src/dns/nm-dns-dnsmasq.c
index b5b93280d..91f4c55bd 100644
--- a/src/dns/nm-dns-dnsmasq.c
+++ b/src/dns/nm-dns-dnsmasq.c
@@ -183,10 +183,12 @@ add_ip_config (NMDnsDnsmasq *self, GVariantBuilder *servers, const NMDnsIPConfig
domain[0] ? domain : NULL);
}
- for (j = 0; ip_data->domains.reverse[j]; j++) {
- add_dnsmasq_nameserver (self, servers,
- ip_addr_to_string_buf,
- ip_data->domains.reverse[j]);
+ if (ip_data->domains.reverse) {
+ for (j = 0; ip_data->domains.reverse[j]; j++) {
+ add_dnsmasq_nameserver (self, servers,
+ ip_addr_to_string_buf,
+ ip_data->domains.reverse[j]);
+ }
}
}
}
--
2.17.1