Note: This bug is displayed in read-only format because
the product is no longer active in Red Hat Bugzilla.
RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Cause:
Referring to named capturing group when the group has not
matched.
Consequence:
A memory leaks.
Fix:
Code to obtain a named capture group value has been corrected
not to allocated a new memory if no match has occurred.
Result:
Using value of non-matched capturing group does not leak
memory anymore.
+++ This bug was initially created as a clone of Bug #767597 +++
Referring non-matched named capture leaks memory:
for (1..10_000_000) {
if ("foo" =~ /(foo|(?<capture>bar))?/) {
my $capture = $+{capture}
}
}
This is tracked by upstream (https://rt.perl.org/rt3/Public/Bug/Display.html?id=78266) and fixed by commit 7402016d87474403eea5c52dc2c071f68cbbe25c.
----
RHEL-6.2 (perl-5.10.1-119.el6_1.1.x86_64) affected.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
http://rhn.redhat.com/errata/RHBA-2013-1534.html