File system group permission with is_readable and is_writable is not being honored #13926
Description
Description
Server Context
- Operating system: Fedora 38
- Web server: nginx 1.24.0
- PHP version: PHP 8.2.17
The following code:
Script in /var/www/test/info.php:
<?php
echo exec('whoami') . PHP_EOL;
if (is_readable('/var/www/test/check.php'))
echo "OK";
else
echo "KO";
echo PHP_EOL;
if(!is_dir('/var/www/test/test_dir')) {
echo 'Nope. Nothing!'.PHP_EOL;
} else {
echo 'Found it!'.PHP_EOL;
}With the following filesystems permissions:
# ll -a
drwxr-xr-x. 3 alcudia alcudia 4096 Apr 9 14:42 .
drwxr-xr-x. 7 root root 4096 Apr 9 01:40 ..
-rw-r-----. 1 nginx nginx 21 Apr 9 01:42 check.php
-rwxrwxrwx. 1 root root 252 Apr 9 14:42 info.php
dr-xr-x---. 2 nginx nginx 4096 Apr 9 14:42 test_dir# lid -g nginx
nginx(uid=992)
alcudia(uid=1000)
The script is being run with PHP-FPM with alcudia user for this example:
# cat /etc/php-fpm.d/test.conf
[alcudia]
user = alcudia
group = alcudia
listen = /run/php-fpm/alcudia.sock
listen.owner = nginx
listen.group = nginxResulted in this output:
Check the video:
php-permissions.mp4
Every time I press F5, the result changes
Very important: This only affects my webservice, not PHP-CLI. PHP-CLI works as it should.
If I find some time, I'm going to set up a docker so it's possible to test this in the same environment.
But I expected this output instead:
Just this exclusively:
alcudia OK Found it!
Extra information:
It's interesting because I first discovered this while I was setting phpMyAdmin and raised this issue:
phpmyadmin/phpmyadmin#19106
PHP Version
8.2.17
Operating System
Fedora 38