Fixes a memcpy call with nullptr in cn (UBSAN).

Updates: NFSE-4097
trdtnguyen · Jul 7, 2020 · e8fde9e · e8fde9e
1 parent e3faf96
commit e8fde9e
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/cn/cn_tree.c b/src/cn/cn_tree.c
@@ -112,6 +112,9 @@ kvset_iterv_release(uint iterc, struct kv_iterator **iterv, struct workqueue_str
     size_t sz, itervsz;
     uint   i;
 
+    if (!iterc)
+        return;
+
     if (wq) {
         itervsz = sizeof(w->kir_iterv[0]) * iterc;
         sz = sizeof(*w) + itervsz;