From 8601838022f06cd9ddbc27eba4202d6af96a2386 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20M=C3=B6ller?= <jo.moeller@tu-braunschweig.de>
Date: Mon, 13 Mar 2023 21:11:17 +0100
Subject: [PATCH] Add missing length check

---
 cJSON.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cJSON.c b/cJSON.c
index 524ba46..2b42374 100644
--- a/cJSON.c
+++ b/cJSON.c
@@ -778,6 +778,11 @@ static cJSON_bool parse_string(cJSON * const item, parse_buffer * const input_bu
     unsigned char *output = NULL;
 
     /* not a string */
+    if (!can_access_at_index(input_buffer, 0))
+    {
+        goto fail;
+    }
+
     if (buffer_at_offset(input_buffer)[0] != '\"')
     {
         goto fail;