From 9e3670e140579c8331779776125e88af68269ca0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Frei?=
 <37588173+freiondrej@users.noreply.github.com>
Date: Wed, 1 Apr 2020 17:33:44 +0200
Subject: [PATCH] Check whether path is file in DataPart::fromPath()

---
 src/Symfony/Component/Mime/Part/DataPart.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Symfony/Component/Mime/Part/DataPart.php b/src/Symfony/Component/Mime/Part/DataPart.php
index c6f1cb9742..17e3e3c0d3 100644
--- a/src/Symfony/Component/Mime/Part/DataPart.php
+++ b/src/Symfony/Component/Mime/Part/DataPart.php
@@ -56,6 +56,10 @@ class DataPart extends TextPart
             $contentType = self::$mimeTypes->getMimeTypes($ext)[0] ?? 'application/octet-stream';
         }
 
+        if (false === is_readable($path)) {
+            throw new InvalidArgumentException(sprintf('Path "%s" is not readable.', $path));
+        }
+        
         if (false === $handle = @fopen($path, 'r', false)) {
             throw new InvalidArgumentException(sprintf('Unable to open path "%s".', $path));
         }