From 85444983a673fe4e3dc19a5000ef43e02feaac75 Mon Sep 17 00:00:00 2001
From: Dmitry Volyntsev <xeioex@nginx.com>
Date: Sat, 11 Jun 2022 00:15:28 -0700
Subject: [PATCH] Fixed njs_array_expand() for empty arrays.

---
 src/njs_array.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/njs_array.c b/src/njs_array.c
index 2367420d..6691d800 100644
--- a/src/njs_array.c
+++ b/src/njs_array.c
@@ -408,7 +408,9 @@ njs_array_expand(njs_vm_t *vm, njs_array_t *array, uint32_t prepend,
 
     array->start = start;
 
-    njs_mp_free(vm->mem_pool, old);
+    if (old != NULL) {
+        njs_mp_free(vm->mem_pool, old);
+    }
 
     return NJS_OK;
 
-- 
2.47.3