[libsoup] websocket: fix off-by-one in incoming payload size check

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 68b957539e2e8532348d44525fa0188782ad68a7
Author: Ole André Vadla Ravnås <oleavr gmail com>
Date:   Fri Jul 9 02:54:56 2021 +0200

    websocket: fix off-by-one in incoming payload size check

 libsoup/websocket/soup-websocket-connection.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/libsoup/websocket/soup-websocket-connection.c b/libsoup/websocket/soup-websocket-connection.c
index de4ab4ea..5fc933ef 100644
--- a/libsoup/websocket/soup-websocket-connection.c
+++ b/libsoup/websocket/soup-websocket-connection.c
@@ -1055,7 +1055,7 @@ process_frame (SoupWebsocketConnection *self)
 
        /* Safety valve */
        if (priv->max_incoming_payload_size > 0 &&
-           payload_len >= priv->max_incoming_payload_size) {
+           payload_len > priv->max_incoming_payload_size) {
                too_big_error_and_close (self, payload_len);
                return FALSE;
        }