Bug #75223 [Opn]: PCRE JIT broken in 7.2

Edit report at https://bugs.php.net/bug.php?id=75223&edit=1 ID: 75223 Updated by: danack@php.net Reported by: giovanni at giacobbi dot net Summary: PCRE JIT broken in 7.2 Status: Open Type: Bug Package: PCRE related Operating System: Linux CentOS 7.4.1708 PHP Version: 7.2.0RC2 Block user comment: N Private report: N New Comment: Please provide a backtrace. Previous Comments: ------------------------------------------------------------------------ [2017-09-18 11:58:01] giovanni at giacobbi dot net Description: ------------ There is a problem in preg_match() when JIT is enabled and when running through Apache2 with event MPM. This problem does not occur with command line invocation. Here are the versions I tested, same environment: 7.1.9 works with PCRE JIT enabled 7.2.0alpha1 broken 7.2.0rc2 broken Build command line: ./configure \ --with-apxs2=/usr/local/apache2/bin/apxs \ --disable-cgi \ --enable-intl \ --with-layout=GNU \ --enable-maintainer-zts \ --with-gettext=static \ --with-iconv \ --with-mysqli=mysqlnd \ --enable-exif \ --with-openssl \ --with-curl Test script: --------------- var_dump(preg_match('/^a/', "a")); var_dump(preg_match('/a/', "a")); Expected result: ---------------- int(1) int(1) Actual result: -------------- int(0) segmentation fault ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=75223&edit=1