Bug #75375 [NEW]: SIGSEGV in zend_hash_str_find()

From: stefan dot beyer at xornet dot de Operating system: Ubuntu 16.04 PHP version: 7.1.10 Package: Reproducible crash Bug Type: Bug Bug description:SIGSEGV in zend_hash_str_find() Description: ------------ PHP crashes when running REDOX CMS in built-in server. Exact PHP Version: PHP 7.1.10-1+ubuntu16.04.1+deb.sury.org+1 (cli) Zend Engine v3.1.0 with Zend OPcache v7.1.10-1+ubuntu16.04.1+deb.sury.org+1 With disabled Zend MM (export USE_ZEND_ALLOC=0) the problem does not occur. Could not locate the code that causes the crash. I was running REDOX 5.4.0 Content Management System (https://github.com/redox-os/redox) Actual result: -------------- PHP crashes with Segmentation fault. Program received signal SIGSEGV, Segmentation fault. 0x00005555557d661b in zend_hash_str_find () (gdb) bt #0 0x00005555557d661b in zend_hash_str_find () #1 0x000055555563fc8b in ?? () #2 0x0000555555641f16 in get_timezone_info () #3 0x0000555555643fad in php_format_date () #4 0x000055555586ccbb in ?? () #5 0x000055555586fc55 in ?? () #6 0x0000555555870359 in ?? () #7 0x0000555555871119 in do_cli_server () #8 0x000055555563af93 in main () -- Edit bug report at https://bugs.php.net/bug.php?id=75375&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75375&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75375&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75375&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=75375&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=75375&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=75375&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=75375&r=needscript Try newer version: https://bugs.php.net/fix.php?id=75375&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=75375&r=support Expected behavior: https://bugs.php.net/fix.php?id=75375&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=75375&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=75375&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=75375&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75375&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=75375&r=dst IIS Stability: https://bugs.php.net/fix.php?id=75375&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=75375&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=75375&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=75375&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=75375&r=mysqlcfg