From 1ac905d3b2359f48a0463afe8e16a080f0e1e03c Mon Sep 17 00:00:00 2001
From: maebex <maximilian.berndt11@web.de>
Date: Sat, 30 Mar 2024 10:42:22 +0100
Subject: [PATCH] Set free'd pointers to NULL whenever they are not reassigned
 immediately after

---
 cJSON.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/cJSON.c b/cJSON.c
index 9bc8961..727e182 100644
--- a/cJSON.c
+++ b/cJSON.c
@@ -235,10 +235,12 @@ CJSON_PUBLIC(void) cJSON_Delete(cJSON *item)
         if (!(item->type & cJSON_IsReference) && (item->valuestring != NULL))
         {
             global_hooks.deallocate(item->valuestring);
+            item->valuestring = NULL;
         }
         if (!(item->type & cJSON_StringIsConst) && (item->string != NULL))
         {
             global_hooks.deallocate(item->string);
+            item->string = NULL;
         }
         global_hooks.deallocate(item);
         item = next;
@@ -820,6 +822,7 @@ fail:
     if (output != NULL)
     {
         input_buffer->hooks.deallocate(output);
+        output = NULL;
     }
 
     if (input_pointer != NULL)
@@ -1165,6 +1168,7 @@ static unsigned char *print(const cJSON * const item, cJSON_bool format, const i
 
         /* free the buffer */
         hooks->deallocate(buffer->buffer);
+        buffer->buffer = NULL;
     }
 
     return printed;
@@ -1173,11 +1177,13 @@ fail:
     if (buffer->buffer != NULL)
     {
         hooks->deallocate(buffer->buffer);
+        buffer->buffer = NULL;
     }
 
     if (printed != NULL)
     {
         hooks->deallocate(printed);
+        printed = NULL;
     }
 
     return NULL;
@@ -1218,6 +1224,7 @@ CJSON_PUBLIC(char *) cJSON_PrintBuffered(const cJSON *item, int prebuffer, cJSON
     if (!print_value(item, &p))
     {
         global_hooks.deallocate(p.buffer);
+        p.buffer = NULL;
         return NULL;
     }
 
@@ -2987,4 +2994,5 @@ CJSON_PUBLIC(void *) cJSON_malloc(size_t size)
 CJSON_PUBLIC(void) cJSON_free(void *object)
 {
     global_hooks.deallocate(object);
+    object = NULL;
 }