From a0822e02ca08c5fa7cf37c7448a0a647c0e332c1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=BCnter=20Obiltschnig?= <guenter.obiltschnig@appinf.com>
Date: Tue, 15 Apr 2025 22:11:47 +0200
Subject: [PATCH] fix(Net): A SEGV at Net/src/MultipartReader.cpp:164:1 #4915

---
 Net/include/Poco/Net/MultipartReader.h |  3 ++-
 Net/src/MultipartReader.cpp            | 10 +++-------
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/Net/include/Poco/Net/MultipartReader.h b/Net/include/Poco/Net/MultipartReader.h
index c025065f2..f35c9c337 100644
--- a/Net/include/Poco/Net/MultipartReader.h
+++ b/Net/include/Poco/Net/MultipartReader.h
@@ -20,6 +20,7 @@
 
 #include "Poco/Net/Net.h"
 #include "Poco/BufferedStreamBuf.h"
+#include <memory>
 #include <istream>
 
 
@@ -150,7 +151,7 @@ private:
 
 	std::istream&         _istr;
 	std::string           _boundary;
-	MultipartInputStream* _pMPI;
+	std::unique_ptr<MultipartInputStream> _pMPI;
 };
 
 
diff --git a/Net/src/MultipartReader.cpp b/Net/src/MultipartReader.cpp
index 24f42c341..f3a2f2bba 100644
--- a/Net/src/MultipartReader.cpp
+++ b/Net/src/MultipartReader.cpp
@@ -175,23 +175,20 @@ MultipartInputStream::~MultipartInputStream()
 
 
 MultipartReader::MultipartReader(std::istream& istr):
-	_istr(istr),
-	_pMPI(0)
+	_istr(istr)
 {
 }
 
 
 MultipartReader::MultipartReader(std::istream& istr, const std::string& boundary):
 	_istr(istr),
-	_boundary(boundary),
-	_pMPI(0)
+	_boundary(boundary)
 {
 }
 
 
 MultipartReader::~MultipartReader()
 {
-	delete _pMPI;
 }
 
 
@@ -209,8 +206,7 @@ void MultipartReader::nextPart(MessageHeader& messageHeader)
 		throw MultipartException("No more parts available");
 	}
 	parseHeader(messageHeader);
-	delete _pMPI;
-	_pMPI = new MultipartInputStream(_istr, _boundary);
+	_pMPI = std::make_unique<MultipartInputStream>(_istr, _boundary);
 }