From 6ea4c01e4e6ff579de0ae4a5f44768307cbb9c69 Mon Sep 17 00:00:00 2001
From: Alan Wang <wp_scut@163.com>
Date: Thu, 31 Dec 2020 10:26:39 +0800
Subject: [PATCH] Fix potential core dumped for strrchr (#546)

---
 cJSON_Utils.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/cJSON_Utils.c b/cJSON_Utils.c
index 8e70e00..c7c6439 100644
--- a/cJSON_Utils.c
+++ b/cJSON_Utils.c
@@ -960,7 +960,9 @@ static int apply_patch(cJSON *object, const cJSON *patch, const cJSON_bool case_
 
     /* split pointer in parent and child */
     parent_pointer = cJSONUtils_strdup((unsigned char*)path->valuestring);
-    child_pointer = (unsigned char*)strrchr((char*)parent_pointer, '/');
+    if (parent_pointer) {
+        child_pointer = (unsigned char*)strrchr((char*)parent_pointer, '/');
+    }
     if (child_pointer != NULL)
     {
         child_pointer[0] = '\0';