From 288d698ce4cc9d73300e757382c250a1ea1876eb Mon Sep 17 00:00:00 2001
From: Jakub Zelenka <bukka@php.net>
Date: Thu, 2 Oct 2025 19:20:49 +0200
Subject: [PATCH] Prevent use after stack scope in stream strerr code (#20040)

---
 main/streams/streams.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main/streams/streams.c b/main/streams/streams.c
index 11eed3e80c6..372ed6635c3 100644
--- a/main/streams/streams.c
+++ b/main/streams/streams.c
@@ -154,6 +154,7 @@ static void php_stream_display_wrapper_errors(php_stream_wrapper *wrapper, const
 {
 	char *tmp;
 	char *msg;
+	char errstr[256];
 	int free_msg = 0;
 
 	if (EG(exception)) {
@@ -203,7 +204,6 @@ static void php_stream_display_wrapper_errors(php_stream_wrapper *wrapper, const
 			free_msg = 1;
 		} else {
 			if (wrapper == &php_plain_files_wrapper) {
-				char errstr[256];
 				msg = php_socket_strerror_s(errno, errstr, sizeof(errstr));
 			} else {
 				msg = "operation failed";