From eaa2a158c88e05e3c326c0238d7f49ac16b4ed4e Mon Sep 17 00:00:00 2001
From: Andi Gutmans <andi@php.net>
Date: Tue, 27 Jun 2000 18:18:18 +0000
Subject: [PATCH] - Fix bug with VIRTUAL_DIR, .., and symlinks.

---
 main/php_virtual_cwd.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/main/php_virtual_cwd.c b/main/php_virtual_cwd.c
index 2c378b760e..392f1444ad 100644
--- a/main/php_virtual_cwd.c
+++ b/main/php_virtual_cwd.c
@@ -271,10 +271,22 @@ CWD_API int virtual_file_ex(cwd_state *state, const char *path, verify_path_func
 	int copy_amount = -1;
 	char *free_path;
 	zend_bool is_absolute = 0;
+#ifndef ZEND_WIN32
+	char resolved_path[MAXPATHLEN];
+#endif
 
 	if (path_length == 0) 
 		return (0);
 
+#ifndef ZEND_WIN32
+	if (strstr(path, "..")) {
+		/* If .. is found then we need to resolve real path as the .. code doesn't work with symlinks */
+		if (realpath(path, resolved_path)) {
+			path = resolved_path;
+			path_length = strlen(path);
+		}
+	}
+#endif
 	free_path = path_copy = estrndup(path, path_length);
 
 	old_state = (cwd_state *) malloc(sizeof(cwd_state));
-- 
2.40.0