Bug #75395 [NEW]: Core dump in in timelib_get_time_zone_info

From: phil at jankaritech dot com Operating system: Ubuntu 16.04 PHP version: 7.1.10 Package: Reproducible crash Bug Type: Bug Bug description:Core dump in in timelib_get_time_zone_info Description: ------------ PHP 7.1.10 Using PHP dev server Reproduced on both Ubuntu 16.04 LTS and Ubuntu 17.10-BETA Backtrace: Core was generated by `php -S localhost:8080'. Program terminated with signal SIGSEGV, Segmentation fault. warning: Unexpected size of section `.reg-xstate/19170' in core file. #0 0x000055dd66964ca0 in ?? () (gdb) bt #0 0x000055dd66964ca0 in ?? () #1 0x000055dd66966984 in timelib_get_time_zone_info () #2 0x000055dd6696884c in timelib_unixtime2local () #3 0x000055dd66944fc6 in php_format_date () #4 0x000055dd66b6dcbb in ?? () #5 0x000055dd66b70c55 in ?? () #6 0x000055dd66b7158e in ?? () #7 0x000055dd66b72119 in do_cli_server () #8 0x000055dd6693bf93 in main () So far I have narrowed it down in ownCloud10 to: - skeleton directory of default files for a new user has >45 files - create a new user - login as that user The PHP server is copying these files into the user's new folder, and thumbnails get generated and AJAX calls to display the thumbnails... Sorry - it needs cutting down into a more simplified actual code example! PHP core dumps with the above backtrace. Use <=45 files and it works fine. I cannot reproduce it with PHP 7.0.22 (I can switch back and forth and the segfault comes and goes) -- Edit bug report at https://bugs.php.net/bug.php?id=75395&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75395&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75395&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75395&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=75395&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=75395&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=75395&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=75395&r=needscript Try newer version: https://bugs.php.net/fix.php?id=75395&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=75395&r=support Expected behavior: https://bugs.php.net/fix.php?id=75395&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=75395&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=75395&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=75395&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75395&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=75395&r=dst IIS Stability: https://bugs.php.net/fix.php?id=75395&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=75395&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=75395&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=75395&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=75395&r=mysqlcfg