From aa86530aec72e5de24227dbe2054cd713fb3d3f5 Mon Sep 17 00:00:00 2001
From: Joe Orton <jorton@apache.org>
Date: Wed, 8 May 2024 12:44:52 +0000
Subject: [PATCH] * modules/proxy/mod_proxy_fcgi.c (dispatch): Only allocate a
 heap   buffer if the configured size is greater than the stack-allocated  
 buffer.

Reference: https://github.com/apache/httpd/commit/aa86530aec72e5de24227dbe2054cd713fb3d3f5
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1917576 13f79535-47bb-0310-9956-ffa450edef68
---
 modules/proxy/mod_proxy_fcgi.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/modules/proxy/mod_proxy_fcgi.c b/modules/proxy/mod_proxy_fcgi.c
index 831bd15..ee7d24f 100644
--- a/modules/proxy/mod_proxy_fcgi.c
+++ b/modules/proxy/mod_proxy_fcgi.c
@@ -569,7 +569,11 @@ static apr_status_t dispatch(proxy_conn_rec *conn, proxy_dir_conf *conf,
     *err = NULL;
     if (conn->worker->s->io_buffer_size_set) {
         iobuf_size = conn->worker->s->io_buffer_size;
-        iobuf = apr_palloc(r->pool, iobuf_size);
+        /* Allocate a buffer if the configured size is larger than the
+        * stack buffer, otherwise use the stack buffer. */
+        if (iobuf_size > AP_IOBUFSIZE) {
+            iobuf = apr_palloc(r->pool, iobuf_size);
+        }
     }
 
     pfd.desc_type = APR_POLL_SOCKET;
-- 
2.27.0