From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
D-Bus object path and interface must be validate otherwise it can cause
errors as follow:
0 0xb7f67ab1 in __kernel_vsyscall ()
1 0xb7ca1cc1 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
2 0xb7ca50ee in abort () at abort.c:92
3 0xb7e30ba5 in _dbus_abort () at dbus-sysdeps.c:94
4 0xb7e267a6 in _dbus_warn_check_failed (
format=0xb7e36cd4 "arguments to %s() were incorrect, assertion \"%s\" failed in file %s line %d.\nThis is normally a bug in some application using the D-Bus library.\n") at dbus-internals.c:290
5 0xb7e16d9f in dbus_message_iter_append_basic (iter=0xbf864400, type=111,
value=0xd70940) at dbus-message.c:2586
6 0x004fcdec in emit_interfaces_added (user_data=0xd70938)
at gdbus/object.c:574
---
gdbus/object.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/gdbus/object.c b/gdbus/object.c
index 617ab5eda..830175385 100644
--- a/gdbus/object.c
+++ b/gdbus/object.c
@@ -1346,6 +1346,10 @@ gboolean g_dbus_register_interface(DBusConnection *connection,
{
struct generic_data *data;
+ if (!dbus_validate_path(path, NULL) ||
+ !dbus_validate_interface(name, NULL))
+ return FALSE;
+
data = object_path_ref(connection, path);
if (data == NULL)
return FALSE;
--
2.17.2
