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Fix crash caused by g_network_monitor_base_add_network()

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This avoids a crash when starting Evolution, and fixes the
network-monitor and network-monitor-race test cases on my developer
workstation. (I assume the CI is not crashing due to lack of network
access there.)

Problem is that if a network already exists in the networks table,
g_hash_table_add() "destroys" (unrefs) it before adding the new one
(which we failed to ref before adding). This means we just accidentally
lost a ref. In practice, the network gets unexpectedly destroyed here
before returning.

Fixes #2020
This commit is contained in:
Michael Catanzaro 2020-01-27 16:20:20 -06:00
parent ab32d5c920
commit 394a72bc11
1 changed files with 1 additions and 3 deletions
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4
gio/gnetworkmonitorbase.c
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@ -496,11 +496,9 @@ void
g_network_monitor_base_add_network (GNetworkMonitorBase *monitor,
GInetAddressMask *network)
{
if (!g_hash_table_add (monitor->priv->networks, network))
if (!g_hash_table_add (monitor->priv->networks, g_object_ref (network)))
return;
g_object_ref (network); /* for the element now stored in the hash table */
if (g_inet_address_mask_get_length (network) == 0)
{
switch (g_inet_address_mask_get_family (network))