From 542fb0eadd3db62630c1eb958e685f1d8e30694e 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 97564bb0..6f55820f 100644
--- a/cJSON.c
+++ b/cJSON.c
@@ -263,10 +263,12 @@ 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;
@@ -894,6 +896,7 @@ static cJSON_bool parse_string(cJSON * const item, parse_buffer * const input_bu
     if (output != NULL)
     {
         input_buffer->hooks.deallocate(output);
+        output = NULL;
     }
 
     if (input_pointer != NULL)
@@ -1236,6 +1239,7 @@ 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;
@@ -1244,11 +1248,13 @@ static unsigned char *print(const cJSON * const item, cJSON_bool format, const i
     if (buffer->buffer != NULL)
     {
         hooks->deallocate(buffer->buffer);
+        buffer->buffer = NULL;
     }
 
     if (printed != NULL)
     {
         hooks->deallocate(printed);
+        printed = NULL;
     }
 
     return NULL;
@@ -1289,6 +1295,7 @@ 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;
     }
 
@@ -3132,4 +3139,5 @@ CJSON_PUBLIC(void *) cJSON_malloc(size_t size)
 CJSON_PUBLIC(void) cJSON_free(void *object)
 {
     global_hooks.deallocate(object);
+    object = NULL;
 }