From 7f46535cce2ca2cd23af618be386a23c98c5afe0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adri=C3=A0=20Arrufat?=
 <1671644+arrufat@users.noreply.github.com>
Date: Tue, 14 Jun 2022 20:59:38 +0900
Subject: [PATCH] Fix potential memory leak when writing WebP throws (#2600)

---
 dlib/image_saver/save_webp.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlib/image_saver/save_webp.cpp b/dlib/image_saver/save_webp.cpp
index e1ee2118c..ea9a8a5ba 100644
--- a/dlib/image_saver/save_webp.cpp
+++ b/dlib/image_saver/save_webp.cpp
@@ -74,7 +74,10 @@ namespace dlib {
             {
                 fout.write(reinterpret_cast<char*>(output), output_size);
                 if (!fout.good())
+                {
+                    WebPFree(output);
                     throw image_save_error("Error while writing WebP image to " + filename + ".");
+                }
             }
             else
             {