sd-bus: properly initialize containers

Fixes a SIGSEGV introduced by commit 38a5315a3a6fab745d8c86ff9e486faaf50b28d1.
The same problem doesn't exist upstream, as the container structure
there is initialized using a compound literal, which is zeroed out by
default.

Related: #1635435

diff --git a/src/libsystemd/sd-bus/bus-message.c b/src/libsystemd/sd-bus/bus-message.c
index d55cb14843ba5abff89175f0f8c8f83746739db9..780c8c618591a895fd2eb3f0670305357ee995b1 100644 (file)
--- a/src/libsystemd/sd-bus/bus-message.c
+++ b/src/libsystemd/sd-bus/bus-message.c
@@ -2004,6 +2004,7 @@ _public_ int sd_bus_message_open_container(
         w = m->containers + m->n_containers++;
         w->enclosing = type;
         w->signature = TAKE_PTR(signature);
+        w->peeked_signature = NULL;
         w->index = 0;
         w->array_size = array_size;
         w->before = before;