From 3bb78fd1ee8a254878a71cf12c275b5f8303c2b0 Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Mon, 8 Nov 2021 11:42:37 +0100
Subject: [PATCH] Make new phar filename random to avoid possible concurrency
 issues, refs #10252

---
 src/Composer/Command/SelfUpdateCommand.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Composer/Command/SelfUpdateCommand.php b/src/Composer/Command/SelfUpdateCommand.php
index cb8a6551d..360442a1c 100644
--- a/src/Composer/Command/SelfUpdateCommand.php
+++ b/src/Composer/Command/SelfUpdateCommand.php
@@ -213,7 +213,7 @@ EOT
             return 0;
         }
 
-        $tempFilename = $tmpDir . '/' . basename($localFilename, '.phar').'-temp.phar';
+        $tempFilename = $tmpDir . '/' . basename($localFilename, '.phar').'-temp'.rand(0, 10000000).'.phar';
         $backupFile = sprintf(
             '%s/%s-%s%s',
             $rollbackDir,