https://bugs.exim.org/show_bug.cgi?id=2168
Bug ID: 2168
Summary: preg_match bug
Product: PCRE
Version: N/A
Hardware: x86
OS: All
Status: NEW
Severity: security
Priority: medium
Component: Code
Assignee: p...@hermes.cam.ac.uk
Reporter: qflb...@dbappsecurity.com.cn
CC: pcre-dev@exim.org
php 7.1.9
php test.php
*** Error in `php': double free or corruption (!prev): 0x0000000002b0dec0 ***
Aborted
Test script:
---------------
<?php
preg_match("/Å¡(?:F?+(?:^(?(R)a+\"){99}-))(?J)(?'R'(?'R'<((?'RR'(?'R'\){97)?J)?J)(?'R'(?'R'\){99|(:(?|(?'R')(\k'R')|((?'R')))H'R'R)(H'R))))))/","$a*b\dc");
?>
========
https://bugs.php.net/bug.php?id=75207
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