Bug #78963 [NEW]: php-fpm-7.4.0 can't access devices

From: jeanmarc dot louviaux at gmail dot com Operating system: Arch PHP version: 7.4.0 Package: FPM related Bug Type: Bug Bug description:php-fpm-7.4.0 can't access devices Description: ------------ Hello, I'am using app via php-fpm that communicate with some of my USB ports (Arduino, electric meters and a solar inverter) It was running for years without any hitchs. I just had to usermod -a -G uucp http. Since php-fpm-7.4.0 i'am unable to access them, so i had to downgrade. Could you please fix that ? Cheers Test script: --------------- <?php $com = "aurora -a 2 -c -T -Y3 -l4 -d0 -e /dev/ttyUSB1"; //$com = "ls -al /dev/"; //$com = "poolmeters ws"; exec("$com 2>&1", $datareturn); $datareturn = trim(implode($datareturn)); echo $datareturn; ?> Expected result: ---------------- Get returns from my devices ;) Actual result: -------------- Unable to open any dev/port -- Edit bug report at https://bugs.php.net/bug.php?id=78963&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=78963&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=78963&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=78963&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=78963&r=needscript Try newer version: https://bugs.php.net/fix.php?id=78963&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=78963&r=support Expected behavior: https://bugs.php.net/fix.php?id=78963&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=78963&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=78963&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=78963&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=78963&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=78963&r=dst IIS Stability: https://bugs.php.net/fix.php?id=78963&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=78963&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=78963&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=78963&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=78963&r=mysqlcfg