[Minor] Add workaround for learn condition when no symbols defined

Issue: #1536

diff --git a/src/libstat/stat_process.c b/src/libstat/stat_process.c
index a1269664d88242a7f41e2e37cd7f3e1f754b8f50..8d9717562285d3f9cec1cb3d6376f3da2be3a53e 100644 (file)
--- a/src/libstat/stat_process.c
+++ b/src/libstat/stat_process.c
@@ -958,6 +958,10 @@ rspamd_stat_has_classifier_symbols (struct rspamd_task *task,
        struct rspamd_stat_ctx *st_ctx;
        gboolean is_spam;
 
+       if (mres == NULL) {
+               return FALSE;
+       }
+
        st_ctx = rspamd_stat_get_ctx ();
        is_spam = !!(task->flags & RSPAMD_TASK_FLAG_LEARN_SPAM);