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