Red Hat Bugzilla – Bug 354681
one regexp in pixelpost with preg_replace segfault apache
Last modified: 2008-06-16 22:44:35 EDT
Description of problem:
Pixelpost is a php photoblog, it uses a template system where the html code is
parsed to replace specific tags by using the preg_replace php function. But one
of the regexp used in the template parser is making apache to segfault.
May be the regexp is wrong? but it used to work before on php-5.2.4 but on other
distros (no sense?)
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. try this code
$tpl = "<PIXELPOST_WARCHIVES smallest=\"8\" largest=\"22\" unit=\"pt\">";
$p = "<a href=\"#\">Doesn't segfault here</a> ";
$tpl = preg_replace("/<PIXELPOST_WARCHIVES\s*((.*?(<.*?>)?)*)\s*>/", $p, $tpl);
2. if you see a blank page, one of your httpd child process has just segfaulted
Blank page (and firefox ask to download it)
preg_replace should work on this regexp, the page should be displayed correctly
without any segmentation fault
works on centos5 (php-5.1.x) and gentoo (php-5.2.4)
fixed on Fedora 8 with php-5.2.4-3
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