Bug #76267 [Fbk->NoF]: 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: php-bugs@lists.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 +Status: No Feedback Type: Bug Package: PDO PgSQL Operating System: Ubuntu 16.04.4 LTS PHP Version: 7.1.16 Private report: N New Comment: No feedback was provided. The bug is being suspended because we assume that you are no longer experiencing the problem. If this is not the case and you are able to provide the information that was requested earlier, please do so and change the status of the bug back to "Re-Opened". Thank you. Previous Comments: ------------------------------------------------------------------------ [2018-04-26 00:50:12] yohgaki@php.net 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. ------------------------------------------------------------------------ [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