Bug 769597

Summary:	Unmatched subpattern becomes wildcard
Product:	[Fedora] Fedora	Reporter:	Petr Pisar <ppisar>
Component:	pcre	Assignee:	Petr Pisar <ppisar>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	15	CC:	c.david86, lkundrak, ppisar
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
URL:	https://lists.exim.org/lurker/message/20111221.071039.d3f28a91.en.html
Whiteboard:
Fixed In Version:	pcre-8.12-6.fc15	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-01-07 22:54:58 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Petr Pisar 2011-12-21 12:40:36 UTC

Reported from upstream (https://lists.exim.org/lurker/message/20111221.071039.d3f28a91.en.html):

$ pcretest 
PCRE version 8.12 2011-01-15

  re> /(another)?(\1?)test/
data> hello world test
 0: hello world test
 1: <unset>
 2: hello world 
data> 

This is wrong result. Correct one (only one match for "test") provides pcre-8.10. All Fedoras are affected. Unaffected is JIT variants (pcretest -s+).

Comment 1 Petr Pisar 2012-01-02 09:47:21 UTC

Fix in upstream in huge merge:

r836 | ph10 | 2011-12-28 18:16:11 +0100 (St, 28 pro 2011) | 2 lines
Merging all the changes from the pcre16 branch into the trunk.

by putting `if (length < 0 && min == 0) continue;' after

--- pcre_exec.c (revision 813)
+++ pcre_exec.c (working copy)
@@ -2634,6 +2634,8 @@

if (length == 0) continue;

Comment 2 Petr Pisar 2012-01-02 12:03:26 UTC

Fixed as pcre-8.21-2.fc17 in F17.

Comment 3 Fedora Update System 2012-01-02 12:26:06 UTC

pcre-8.12-7.fc16 has been submitted as an update for Fedora 16.
https://admin.fedoraproject.org/updates/pcre-8.12-7.fc16

Comment 4 Fedora Update System 2012-01-02 12:29:43 UTC

pcre-8.12-6.fc15 has been submitted as an update for Fedora 15.
https://admin.fedoraproject.org/updates/pcre-8.12-6.fc15

Comment 5 Fedora Update System 2012-01-02 21:52:45 UTC

Package pcre-8.12-7.fc16:
* should fix your issue,
* was pushed to the Fedora 16 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing pcre-8.12-7.fc16'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2012-0023/pcre-8.12-7.fc16
then log in and leave karma (feedback).

Comment 6 Fedora Update System 2012-01-07 22:54:58 UTC

pcre-8.12-7.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 7 Fedora Update System 2012-01-17 20:30:28 UTC

pcre-8.12-6.fc15 has been pushed to the Fedora 15 stable repository.  If problems still persist, please make note of it in this bug report.