PHP-FPM 8.3 child exited with code 70

[aloz77]

After upgrading to PHP 8.3 PHP-FPM can't run with snuffleupagus enabled.

• No issues with PHP 8.3 without snuffleupagus enabled
• No issues with PHP 8.2 with snuffleupagus enabled.

# tail /var/log/php8.3-fpm.log
[14-Jan-2024 02:03:14] NOTICE: fpm is running, pid 2750186
[14-Jan-2024 02:03:15] NOTICE: ready to handle connections
[14-Jan-2024 02:03:15] NOTICE: systemd monitor interval set to 10000ms
[14-Jan-2024 02:03:15] WARNING: [pool www] child 2750188 exited with code 70 after 0.281764 seconds from start
[14-Jan-2024 02:03:15] NOTICE: [pool www] child 2750397 started
[14-Jan-2024 02:03:15] WARNING: [pool www] child 2750189 exited with code 70 after 1.057567 seconds from start
[14-Jan-2024 02:03:15] NOTICE: [pool www] child 2750399 started
...

snuffleupagus was rebuilt as follows.

rm snuffleupagus/ -Rf
git clone https://github.com/jvoisin/snuffleupagus
cd snuffleupagus/src
phpize
./configure --enable-snuffleupagus
make
make install

# tail /etc/php/8.3/fpm/php.ini -n 3
extension=snuffleupagus.so
sp.configuration_file=/etc/php/8.3/snuffleupagus.ini

# cat /etc/php/8.3/snuffleupagus.ini
sp.global.secret_key("***");
sp.harden_random.enable();
sp.disable_xxe.enable();

# phpize -v
Configuring for:
PHP Api Version:         20230831
Zend Module Api No:      20230831
Zend Extension Api No:   420230831

What could be the issue or how to debug?

[jvoisin]

70 is "internal server error". Is there anything in webserver's logs? If not, you might want to increase the verbosity of php-fpm's logs.

[aloz77]

Yes, the web log shows this issue:

2024/01/15 04:15:21 [error] 3453566#3453566: *1053618 FastCGI sent in stderr: "PHP message: PHP Fatal error:  [snuffleupagus][0.0.0.0][config][log] Invalid configuration file in Unknown on line 0" while reading response header from upstream, client: 127.0.0.1, server: _, request: "GET /php-fpm-status?full&json HTTP/1.1", upstream: "fastcgi://127.0.0.1:9003", host: "localhost"
2024/01/15 04:15:21 [error] 3453566#3453566: *1053618 upstream sent unexpected FastCGI record: 3 while reading response header from upstream, client: 127.0.0.1, server: _, request: "GET /php-fpm-status?full&json HTTP/1.1", upstream: "fastcgi://127.0.0.1:9003", host: "localhost"

The issue disappear after taking the config file from https://github.com/jvoisin/snuffleupagus/blob/master/config/default_php8.rules

However I don't know what in my config file was causing the issue.

[jvoisin]

$ cat src/tests/regressions/issue_479.out 
PHP Fatal error:  [snuffleupagus][0.0.0.0][config][log] Unexpected keyword 'disable_xxe' on line 3 in Unknown on line 0

Fatal error: [snuffleupagus][0.0.0.0][config][log] Unexpected keyword 'disable_xxe' on line 3 in Unknown on line 0

Fatal error: [snuffleupagus][0.0.0.0][config][log] Invalid configuration file in Unknown on line 0
$

You should replace disable_xxe with xxe_protection, I just pushed 8ea689e to prove it :)