From 909c2acc64d72bd57123b30e711c02aef0c08d14 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tim=20D=C3=BCsterhus?= <tim@tideways-gmbh.com>
Date: Sun, 3 May 2026 20:02:57 +0200
Subject: [PATCH 6/9] GHSA-96wq-48vp-hh57: [metaphone] Fix signed integer
 overflow of char array offset

Fixes GHSA-96wq-48vp-hh57
Fixes CVE-2026-7568

(cherry picked from commit 47def8ce1db1fdbffcfc1f5bb11877a0e22d4b32)
(cherry picked from commit e4fc187a011d91f26178f6dfbccdb07041b99153)
(cherry picked from commit 53de456406a6db5a8bcded8a4b242789ae5b2690)
---
 ext/standard/metaphone.c                    |  6 +++---
 ext/standard/tests/GHSA-96wq-48vp-hh57.phpt | 22 +++++++++++++++++++++
 2 files changed, 25 insertions(+), 3 deletions(-)
 create mode 100644 ext/standard/tests/GHSA-96wq-48vp-hh57.phpt

diff --git a/ext/standard/metaphone.c b/ext/standard/metaphone.c
index 16fd1495713..448e9b75d37 100644
--- a/ext/standard/metaphone.c
+++ b/ext/standard/metaphone.c
@@ -122,10 +122,10 @@ static const char _codes[26] =
 
 /* Allows us to safely look ahead an arbitrary # of letters */
 /* I probably could have just used strlen... */
-static char Lookahead(char *word, int how_far)
+static char Lookahead(char *word, size_t how_far)
 {
 	char letter_ahead = '\0';	/* null by default */
-	int idx;
+	size_t idx;
 	for (idx = 0; word[idx] != '\0' && idx < how_far; idx++);
 	/* Edge forward in the string... */
 
@@ -167,7 +167,7 @@ static char Lookahead(char *word, int how_far)
  */
 static int metaphone(unsigned char *word, size_t word_len, zend_long max_phonemes, zend_string **phoned_word, int traditional)
 {
-	int w_idx = 0;				/* point in the phonization we're at. */
+	size_t w_idx = 0;				/* point in the phonization we're at. */
 	size_t p_idx = 0;				/* end of the phoned phrase */
 	size_t max_buffer_len = 0;		/* maximum length of the destination buffer */
 
diff --git a/ext/standard/tests/GHSA-96wq-48vp-hh57.phpt b/ext/standard/tests/GHSA-96wq-48vp-hh57.phpt
new file mode 100644
index 00000000000..79c6b656733
--- /dev/null
+++ b/ext/standard/tests/GHSA-96wq-48vp-hh57.phpt
@@ -0,0 +1,22 @@
+--TEST--
+GHSA-96wq-48vp-hh57: signed integer overflow of char array offset
+--CREDITS--
+012git012
+--INI--
+memory_limit=3G
+--SKIPIF--
+<?php
+if (!getenv('RUN_RESOURCE_HEAVY_TESTS')) die('skip resource-heavy test');
+if (getenv('SKIP_SLOW_TESTS')) die('skip slow test');
+if (PHP_INT_SIZE != 8) echo 'skip 64-bit only';
+?>
+--FILE--
+<?php
+
+$str = str_repeat('0', 2 * (1024 ** 3) - 2) . 'AE';
+metaphone($str, 1);
+
+?>
+===DONE===
+--EXPECT--
+===DONE===
-- 
2.54.0

From b40b656c0fe8080f9cd097bf77b7a3681ea3e7a0 Mon Sep 17 00:00:00 2001
From: Ilija Tovilo <ilija.tovilo@me.com>
Date: Wed, 6 May 2026 16:33:44 +0200
Subject: [PATCH 7/9] [skip ci] Adjust credits for GHSA-96wq-48vp-hh57.phpt

As requested by the reporter.

(cherry picked from commit fee84dd8c7699e4e7f9b2e864a393ee5a372f974)
(cherry picked from commit 101e93900888ef43d42ec0e33866bca3824f51a8)
(cherry picked from commit 41134d0746a524d7265b67d3d8d0fd433fd7479a)
---
 ext/standard/tests/GHSA-96wq-48vp-hh57.phpt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ext/standard/tests/GHSA-96wq-48vp-hh57.phpt b/ext/standard/tests/GHSA-96wq-48vp-hh57.phpt
index 79c6b656733..cf9a40062f8 100644
--- a/ext/standard/tests/GHSA-96wq-48vp-hh57.phpt
+++ b/ext/standard/tests/GHSA-96wq-48vp-hh57.phpt
@@ -1,7 +1,7 @@
 --TEST--
 GHSA-96wq-48vp-hh57: signed integer overflow of char array offset
 --CREDITS--
-012git012
+Aleksey Solovev (Positive Technologies)
 --INI--
 memory_limit=3G
 --SKIPIF--
-- 
2.54.0