sssd/0035-sbus-read-destination-...

43 lines
1.6 KiB
Diff

From 9245bf1afe6767a0412212bc0040e606ee850e7d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pavel=20B=C5=99ezina?= <pbrezina@redhat.com>
Date: Wed, 12 Sep 2018 13:21:11 +0200
Subject: [PATCH 41/83] sbus: read destination after sender is set
dbus_message_set_sender may reallocate internal fields which will yield pointer
obtained by dbus_message_get_* invalid.
Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>
---
src/sbus/server/sbus_server_handler.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/src/sbus/server/sbus_server_handler.c b/src/sbus/server/sbus_server_handler.c
index c300d81..d4e4547 100644
--- a/src/sbus/server/sbus_server_handler.c
+++ b/src/sbus/server/sbus_server_handler.c
@@ -148,9 +148,6 @@ sbus_server_filter(DBusConnection *dbus_conn,
return DBUS_HANDLER_RESULT_HANDLED;
}
- destination = dbus_message_get_destination(message);
- type = dbus_message_get_type(message);
-
conn = dbus_connection_get_data(dbus_conn, server->data_slot);
if (conn == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, "Unknown connection!\n");
@@ -173,6 +170,11 @@ sbus_server_filter(DBusConnection *dbus_conn,
return DBUS_HANDLER_RESULT_HANDLED;
}
+ /* Set sender may reallocate internal fields so this needs to be read
+ * after we call dbus_message_set_sender(). */
+ destination = dbus_message_get_destination(message);
+ type = dbus_message_get_type(message);
+
if (type == DBUS_MESSAGE_TYPE_SIGNAL) {
return sbus_server_route_signal(server, conn, message, destination);
}
--
2.9.5