From: Joe Orton <jorton@apache.org>
Date: Thu, 13 Aug 2026 16:02:11 +0000 (+0000)
Subject: * modules/http/http_filters.c (ap_http_filter): Fix use-after-free
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=7582a6dbda0c1eaaab02267be375dfcd1a8ffe86;p=thirdparty%2Fapache%2Fhttpd.git

* modules/http/http_filters.c (ap_http_filter): Fix use-after-free
  of a HEADERS bucket.

Fixes: 4442201e616 (SVN r1899547, trunk-only)
Assisted-by: Claude Opus 4.6 <noreply@anthropic.com>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1937112 13f79535-47bb-0310-9956-ffa450edef68
---

diff --git a/modules/http/http_filters.c b/modules/http/http_filters.c
index 62bd889bdb..8170db9d6a 100644
--- a/modules/http/http_filters.c
+++ b/modules/http/http_filters.c
@@ -414,7 +414,7 @@ apr_status_t ap_http_filter(ap_filter_t *f, apr_bucket_brigade *b,
                 }
                 apr_bucket_delete(e);
             }
-            if (APR_BUCKET_IS_EOS(e)) {
+            else if (APR_BUCKET_IS_EOS(e)) {
                 ctx->at_eos = 1;
                 if (!apr_is_empty_table(r->trailers_in)) {
                     core_server_config *conf = ap_get_module_config(