From 9c7527918e5acda9c89d14cd8b5a5c93563cc63a Mon Sep 17 00:00:00 2001
From: Valery Chistyakov <vchistyakov@ptsecurity.com>
Date: Sat, 28 Sep 2024 11:08:32 +0300
Subject: [PATCH] Proxy: always initialize header's chain next field

---
 src/http/modules/ngx_http_proxy_module.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
index f9a373744..e1cc818d1 100644
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -1949,6 +1949,8 @@ ngx_http_proxy_process_header(ngx_http_request_t *r)
                 if (rc != NGX_OK) {
                     return rc;
                 }
+            } else {
+              h->next = NULL;
             }
 
             ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,