Bug #76267 [Fbk]: pg_escape_string, pg_send_query will cause a segfault in some rare cases

Edit report at https://bugs.php.net/bug.php?id=76267&edit=1 ID: 76267 Updated by: yohgaki@php.net Reported by: nick dot ilyin at oracle dot com Summary: pg_escape_string, pg_send_query will cause a segfault in some rare cases Status: Feedback Type: Bug Package: PDO PgSQL Operating System: Ubuntu 16.04.4 LTS PHP Version: 7.1.16 Block user comment: N Private report: N New Comment: pg_escape_string() is simple libpq wrapper function, so chances are high that other feature's memory management error is the cause. Please do not forget to paste list of installed modules. i.e. php -m or phpinfo()'s modules list. Previous Comments: ------------------------------------------------------------------------ [2018-04-26 00:34:07] requinix@php.net Thank you for this bug report. To properly diagnose the problem, we need a backtrace to see what is happening behind the scenes. To find out how to generate a backtrace, please read http://bugs.php.net/bugs-generating-backtrace.php for *NIX and http://bugs.php.net/bugs-generating-backtrace-win32.php for Win32 Once you have generated a backtrace, please submit it to this bug report and change the status back to "Open". Thank you for helping us make PHP better. ------------------------------------------------------------------------ [2018-04-25 14:34:10] nick dot ilyin at oracle dot com Description: ------------ In some rare cases both pg_escape_string and pg_send_query cause a segfault in Apache/2.4.18. Unfortunately it happens in cases where I cannot replicate outside of our stack with a test script. However, I have a test machine up where I can replicate the issue consistently so I can provide whatever information is necessary from there. I can provide whatever output is needed. Test script: --------------- Unable to provide given the nature of not knowing how to reproduce the issue in a simple test script. This issue is fully reproducible in a brand new machine built on our stack and is reproducible on brand new Ubuntu 16.04.4 machines using PHP 7.1.16. Expected result: ---------------- No segmentation fault. Actual result: -------------- In the error log: [Wed Apr 25 10:32:28.271689 2018] [core:notice] [pid 32568] AH00052: child pid 12510 exit signal Segmentation fault (11) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=76267&edit=1