Bug #73881 [NEW]: A code that makes segmentation fault

From: eruiz at dataclick dot es Operating system: Linux Gentoo PHP version: 7.1.0 Package: *General Issues Bug Type: Bug Bug description:A code that makes segmentation fault Description: ------------ Hello, I notice you about this bug that causes that PHP fails and 'Segmentation Fault' and so you can see "Error Gateway" in browser!! Only happens with new released version PHP 7.1.0 and without execution code! just reading the file fpdf.php that I use to generate PDF files (http://www.fpdf.org) and in function "Image" in main class: This code in the file and "without execution" causes segmentation fault when PHP only read the file: if($w<0) $w = -$info['w']*72/$w/$this->k; if($h<0) $h = -$info['h']*72/$h/$this->k; To solve it... I have changed avoiding /$w and /$h because it's seem that PHP consider value as 0 or whatever if($w<0) $w = -$info['w']*72/min($w,1)/$this->k; if($h<0) $h = -$info['h']*72/min($h,1)/$this->k; Thanks and happy new year from Spain ;) Eduardo Ruiz Test script: --------------- // Just create a file with these lines and without execution and read it: if($w<0) $w = -$info['w']*72/$w/$this->k; if($h<0) $h = -$info['h']*72/$h/$this->k; Expected result: ---------------- No segmentation fault!!! Actual result: -------------- Segmentation Fault and Gateway error -- Edit bug report at https://bugs.php.net/bug.php?id=73881&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=73881&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=73881&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=73881&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=73881&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=73881&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=73881&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=73881&r=needscript Try newer version: https://bugs.php.net/fix.php?id=73881&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=73881&r=support Expected behavior: https://bugs.php.net/fix.php?id=73881&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=73881&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=73881&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=73881&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=73881&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=73881&r=dst IIS Stability: https://bugs.php.net/fix.php?id=73881&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=73881&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=73881&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=73881&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=73881&r=mysqlcfg