From 211715fc56e47bccf4ec3f28512107b4c5f84a05 Mon Sep 17 00:00:00 2001
From: Stephen Seo <seo.disparate@gmail.com>
Date: Wed, 19 Apr 2023 19:11:03 +0900
Subject: [PATCH] Fix potential nullptr deref in free_PacketInfo_ptr

---
 src/UDPConnection.cpp | 2 +-
 src/test/TestUDPC.cpp | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/UDPConnection.cpp b/src/UDPConnection.cpp
index b8b0f22..8f9e327 100644
--- a/src/UDPConnection.cpp
+++ b/src/UDPConnection.cpp
@@ -2500,7 +2500,7 @@ void UDPC_free_PacketInfo(UDPC_PacketInfo pInfo) {
 }
 
 void UDPC_free_PacketInfo_ptr(UDPC_PacketInfo *pInfoPtr) {
-    if (pInfoPtr->data && pInfoPtr->dataSize > 0) {
+    if (pInfoPtr && pInfoPtr->data && pInfoPtr->dataSize > 0) {
         std::free(pInfoPtr->data);
         pInfoPtr->data = nullptr;
         pInfoPtr->dataSize = 0;
diff --git a/src/test/TestUDPC.cpp b/src/test/TestUDPC.cpp
index 75ba976..37bd719 100644
--- a/src/test/TestUDPC.cpp
+++ b/src/test/TestUDPC.cpp
@@ -337,4 +337,5 @@ TEST(UDPC, free_packet_ptr) {
 
     UDPC_free_PacketInfo_ptr(&pinfo);
     UDPC_free_PacketInfo_ptr(&pinfo);
+    UDPC_free_PacketInfo_ptr(nullptr);
 }