From 05033c9ebd015baf825581e5725a594da277d560 Mon Sep 17 00:00:00 2001
From: Jakub Zelenka <bukka@php.net>
Date: Wed, 8 Jun 2016 18:21:39 +0100
Subject: [PATCH] Fix bug #72140 (segfault after calling ERR_free_strings())

---
 NEWS                  | 4 ++++
 ext/openssl/openssl.c | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/NEWS b/NEWS
index 8686b862f8..221d5eb369 100644
--- a/NEWS
+++ b/NEWS
@@ -9,6 +9,10 @@ PHP                                                                        NEWS
   . Fixed bug #70484 (selectordinal doesn't work with named parameters).
     (Anatol)
 
+- OpenSSL:
+  . Fixed bug #72140 (segfault after calling ERR_free_strings()).
+    (Jakub Zelenka)
+
 26 May 2016, PHP 5.6.22
 
 - Core:
diff --git a/ext/openssl/openssl.c b/ext/openssl/openssl.c
index 88e396c630..79f666acc5 100644
--- a/ext/openssl/openssl.c
+++ b/ext/openssl/openssl.c
@@ -1278,6 +1278,9 @@ PHP_MSHUTDOWN_FUNCTION(openssl)
 	EVP_cleanup();
 
 #if OPENSSL_VERSION_NUMBER >= 0x00090805f
+	/* prevent accessing locking callback from unloaded extension */
+	CRYPTO_set_locking_callback(NULL);
+	/* free allocated error strings */
 	ERR_free_strings();
 #endif
 
-- 
2.50.1