lib: Fix CID 1362566 Dereference null return value

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

diff --git a/source3/lib/messages.c b/source3/lib/messages.c
index ef8e83dd6e61fa6b13133dd6ffde4cec8d5e97e3..65e975ec788fcbf9ff0ac80c1db606a666d85aad 100644 (file)
--- a/source3/lib/messages.c
+++ b/source3/lib/messages.c
@@ -393,6 +393,7 @@ struct server_id messaging_server_id(const struct messaging_context *msg_ctx)
 NTSTATUS messaging_reinit(struct messaging_context *msg_ctx)
 {
        int ret;
+       char *lck_path;
 
        TALLOC_FREE(msg_ctx->msg_dgm_ref);
 
@@ -400,9 +401,14 @@ NTSTATUS messaging_reinit(struct messaging_context *msg_ctx)
                .pid = getpid(), .vnn = msg_ctx->id.vnn
        };
 
+       lck_path = lock_path("msg.lock");
+       if (lck_path == NULL) {
+               return NT_STATUS_NO_MEMORY;
+       }
+
        msg_ctx->msg_dgm_ref = messaging_dgm_ref(
                msg_ctx, msg_ctx->event_ctx, &msg_ctx->id.unique_id,
-               private_path("msg.sock"), lock_path("msg.lock"),
+               private_path("msg.sock"), lck_path,
                messaging_recv_cb, msg_ctx, &ret);
 
        if (msg_ctx->msg_dgm_ref == NULL) {