Bug #72576 [Fbk->NoF]: Memory leak or potential segfaul in LibXML

Edit report at https://bugs.php.net/bug.php?id=72576&edit=1 ID: 72576 Updated by: php-bugs@lists.php.net Reported by: eugen dot mayer at kontextwork dot de Summary: Memory leak or potential segfaul in LibXML -Status: Feedback +Status: No Feedback Type: Bug Package: XML related Operating System: Linux, Debian Jessie PHP Version: 7.0.8 Assigned To: cmb 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: ------------------------------------------------------------------------ [2018-03-31 12:12:19] cmb@php.net Thank you for this bug report. To properly diagnose the problem, we need a short but complete example script to be able to reproduce this bug ourselves. A proper reproducing script starts with , is max. 10-20 lines long and does not require any external resources such as databases, etc. If the script requires a database to demonstrate the issue, please make sure it creates all necessary tables, stored procedures etc. Please avoid embedding huge scripts into the report. BTW: the valgrind report shows memory leaks, but I cannot see anything regarding a segfault. ------------------------------------------------------------------------ [2016-07-11 12:23:58] eugen dot mayer at kontextwork dot de Description: ------------ When using this Jessie-Setup with PHP 7.0.8, disabling all extensions leaving it with: php -m [PHP Modules] Core date filter hash libxml openssl pcntl pcre Reflection session SPL standard zlib Using valgrind, i get a memory leak https://gist.github.com/EugenMayer/bdfe97f551caf6923ba5b911b7959476 Even though the linked repo has memcached it its name, its not memcached related. I was hunting a memcached igbinary bug, but this crossed our setup recently. Test script: --------------- git clone https://github.com/EugenMayer/deb-surg-org-tests cd deb-surg-org-tests/memcached docker-compose build docker run -i -t eugenmayer/deb-surg-org-tests:memcached valgrind --leak-check=full --leak-check=full --show-leak-kinds=all /usr/bin/php7.0 -S localhost:8085 CTRL+C Expected result: ---------------- Not having a Segfault, like running the same with php5.5 git clone https://github.com/EugenMayer/deb-surg-org-tests cd deb-surg-org-tests/memcached docker-compose build docker run -i -t eugenmayer/deb-surg-org-tests:memcached valgrind --leak-check=full --leak-check=full --show-leak-kinds=all /usr/bin/php5.5 -S localhost:8085 CTRL+C valgrind --leak-check=full /usr/bin/php7.0 -S localhost:8085 ==18== Memcheck, a memory error detector ==18== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al. ==18== Using Valgrind-3.10.0 and LibVEX; rerun with -h for copyright info ==18== Command: /usr/bin/php7.0 -S localhost:8085 ==18== PHP 7.0.8-2+0~20160628130014.3+jessie~1.gbp5338fb Development Server started at Mon Jul 11 09:47:52 2016 Listening on http://localhost:8085 Document root is /etc/php/7.0/cli/conf.d Press Ctrl-C to quit. Actual result: -------------- https://gist.github.com/EugenMayer/bdfe97f551caf6923ba5b911b7959476 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=72576&edit=1