From 006673a9e1a18d5a4ddbf4ad2bd04b935396ac2a Mon Sep 17 00:00:00 2001
From: Evangelos Ribeiro Tzaras <devrtz@fortysixandtwo.eu>
Date: Tue, 15 Feb 2022 07:55:33 +0100
Subject: [PATCH] contacts-provider: Guard against lookup with NULL id

If the id is NULL g_str_hash(NULL) will be called which tries dereferencing the
pointer.

Fixes #408
---
 src/calls-contacts-provider.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/calls-contacts-provider.c b/src/calls-contacts-provider.c
index 0d5f95a..41faeb2 100644
--- a/src/calls-contacts-provider.c
+++ b/src/calls-contacts-provider.c
@@ -441,6 +441,7 @@ calls_contacts_provider_lookup_id (CallsContactsProvider *self,
   g_autoptr (CallsBestMatch) best_match = NULL;
 
   g_return_val_if_fail (CALLS_IS_CONTACTS_PROVIDER (self), NULL);
+  g_return_val_if_fail (id, NULL);
 
   best_match = g_hash_table_lookup (self->best_matches, id);