archive/php-src
1
0
Fork 0
mirror of https://github.com/php/php-src.git synced 2025-08-15 21:48:51 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

Merge branch 'PHP-7.3'

Browse source 
* PHP-7.3:
  Fixed bug #77484 Zend engine crashes when calling realpath in invalid working dir
This commit is contained in:
Anatol Belski 2019-01-19 02:39:42 +01:00
commit 1f4a04fb3f
2 changed files with 34 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
Zend/zend_virtual_cwd.c
View file

@ -514,7 +514,7 @@ static size_t tsrm_realpath_r(char *path, size_t start, size_t len, int *ll, tim
if (i == len ||
(i + 1 == len && path[i] == '.')) {
/* remove double slashes and '.' */
len = i - 1;
len = EXPECTED(i > 0) ? i - 1 : 0;
is_dir = 1;
continue;
} else if (i + 2 == len && path[i] == '.' && path[i+1] == '.') {

33
ext/standard/tests/file/realpath_bug77484.phpt Normal file
View file

@ -0,0 +1,33 @@
--TEST--
Bug #77484 Zend engine crashes when calling realpath in invalid working dir
--SKIPIF--
<?php
if (substr(PHP_OS, 0, 3) == 'WIN') {
die("skip can't remove CWD on Windows");
}
?>
--FILE--
<?php
var_dump(\getcwd());
\mkdir(__DIR__ . "/foo");
\chdir(__DIR__ . "/foo");
\rmdir(__DIR__ . "/foo");
// Outputs: / (incorrect)
var_dump(\getcwd());
// Outputs: false (correct)
var_dump(\realpath(''));
// Crash
var_dump(\realpath('.'), \realpath('./'));
?>
--EXPECTF--
string(%d) "%s"
bool(false)
bool(false)
string(1) "."
string(1) "."