From c6026bb3d271a6c58a07c2961a097163fec10d43 Mon Sep 17 00:00:00 2001
From: Lazizbek Ergashev <lazerg2@gmail.com>
Date: Mon, 24 Aug 2026 01:25:33 +0500
Subject: [PATCH] Fix php_embed_ub_write() infinite loop on failed write

---
 NEWS                   | 3 +++
 sapi/embed/php_embed.c | 1 +
 2 files changed, 4 insertions(+)

diff --git a/NEWS b/NEWS
index a22154027d39..cc69770e3971 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,9 @@ PHP                                                                        NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 ?? ??? ????, PHP 8.2.34
 
+- Embed:
+  . Fixed bug GH-23423 (php_embed_ub_write() infinite loop when a write
+    fails and the connection is not aborted). (Lazizbek Ergashev)
 
 30 Jul 2026, PHP 8.2.33
 
diff --git a/sapi/embed/php_embed.c b/sapi/embed/php_embed.c
index 4b94bd98e66d..1ef982149919 100644
--- a/sapi/embed/php_embed.c
+++ b/sapi/embed/php_embed.c
@@ -82,6 +82,7 @@ static size_t php_embed_ub_write(const char *str, size_t str_length)
 		ret = php_embed_single_write(ptr, remaining);
 		if (!ret) {
 			php_handle_aborted_connection();
+			return str_length - remaining;
 		}
 		ptr += ret;
 		remaining -= ret;