X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;ds=sidebyside;f=src%2Flibsystemd-bus%2Fbus-message.c;h=b0f4b16d41ad726fef73077eb88ca9bcfaf9af09;hb=3547329642fef7468548320131ab992517957e81;hp=d6888738e1063989594f2bc762146551f16a3925;hpb=bd746b8b0ce91be3f28532d319ffa577590f52d8;p=elogind.git

diff --git a/src/libsystemd-bus/bus-message.c b/src/libsystemd-bus/bus-message.c
index d6888738e..b0f4b16d4 100644
--- a/src/libsystemd-bus/bus-message.c
+++ b/src/libsystemd-bus/bus-message.c
@@ -5133,6 +5133,14 @@ int bus_message_parse_fields(sd_bus_message *m) {
                 break;
         }
 
+        /* Refuse non-local messages that claim they are local */
+        if (streq_ptr(m->path, "/org/freedesktop/DBus/Local"))
+                return -EBADMSG;
+        if (streq_ptr(m->interface, "org.freedesktop.DBus.Local"))
+                return -EBADMSG;
+        if (streq_ptr(m->sender, "org.freedesktop.DBus.Local"))
+                return -EBADMSG;
+
         m->root_container.end = BUS_MESSAGE_BODY_SIZE(m);
 
         if (BUS_MESSAGE_IS_GVARIANT(m)) {