From 9216b8be8b11f87d1d4ab5e6bdcaf98db9a9bf91 Mon Sep 17 00:00:00 2001
From: Niels Dossche <7771979+nielsdos@users.noreply.github.com>
Date: Sat, 11 Oct 2025 13:08:29 +0200
Subject: [PATCH] phar: Fix memory leak when setAlias() fails

Closes GH-20135.
---
 NEWS                   | 1 +
 ext/phar/phar_object.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/NEWS b/NEWS
index 0905761da01..49370da6143 100644
--- a/NEWS
+++ b/NEWS
@@ -17,6 +17,7 @@ PHP                                                                        NEWS
 
 - Phar:
   . Fix memory leak of argument in webPhar. (nielsdos)
+  . Fix memory leak when setAlias() fails. (nielsdos)
 
 - Random:
   . Fix Randomizer::__serialize() w.r.t. INDIRECTs. (nielsdos)
diff --git a/ext/phar/phar_object.c b/ext/phar/phar_object.c
index abda7e5a78c..b8577701359 100644
--- a/ext/phar/phar_object.c
+++ b/ext/phar/phar_object.c
@@ -2770,6 +2770,7 @@ valid_alias:
 	phar_flush(phar_obj->archive, NULL, 0, 0, &error);
 
 	if (error) {
+		pefree(phar_obj->archive->alias, phar_obj->archive->is_persistent);
 		phar_obj->archive->alias = oldalias;
 		phar_obj->archive->alias_len = oldalias_len;
 		phar_obj->archive->is_temporary_alias = old_temp;