From 911074554a1f088dddee44f17ab1d491e03836e1 Mon Sep 17 00:00:00 2001
From: Niels Dossche <7771979+nielsdos@users.noreply.github.com>
Date: Mon, 29 May 2023 16:39:58 +0200
Subject: [PATCH] Fix GH-11336: php still tries to unlock the shared memory
 ZendSem with opcache.file_cache_only=1 but it was never locked

I chose to check for the value of lock_file instead of checking the
file_cache_only, because it is probably a little bit faster and we're
going to access the lock_file variable anyway. It's also more generic.
---
 ext/opcache/ZendAccelerator.c   | 4 ++++
 ext/opcache/zend_shared_alloc.c | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/ext/opcache/ZendAccelerator.c b/ext/opcache/ZendAccelerator.c
index 97b82378780b8..ed0602394ce97 100644
--- a/ext/opcache/ZendAccelerator.c
+++ b/ext/opcache/ZendAccelerator.c
@@ -354,6 +354,10 @@ static inline void accel_unlock_all(void)
 #ifdef ZEND_WIN32
 	accel_deactivate_sub();
 #else
+	if (lock_file == -1) {
+		return;
+	}
+
 	struct flock mem_usage_unlock_all;
 
 	mem_usage_unlock_all.l_type = F_UNLCK;
diff --git a/ext/opcache/zend_shared_alloc.c b/ext/opcache/zend_shared_alloc.c
index afe539bf987a7..37f6fea9199a7 100644
--- a/ext/opcache/zend_shared_alloc.c
+++ b/ext/opcache/zend_shared_alloc.c
@@ -52,7 +52,7 @@ zend_smm_shared_globals *smm_shared_globals;
 #ifdef ZTS
 static MUTEX_T zts_lock;
 #endif
-int lock_file;
+int lock_file = -1;
 static char lockfile_name[MAXPATHLEN];
 #endif