Bug 810314 - Look-behind assertion in UTf-8 with JIT compiler unexpected match
Look-behind assertion in UTf-8 with JIT compiler unexpected match
Product: Fedora
Classification: Fedora
Component: pcre (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: Petr Pisar
Fedora Extras Quality Assurance
Depends On:
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Reported: 2012-04-05 11:15 EDT by Petr Pisar
Modified: 2012-04-11 22:43 EDT (History)
3 users (show)

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Fixed In Version: pcre-8.21-3.fc17
Doc Type: Bug Fix
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Last Closed: 2012-04-11 22:43:41 EDT
Type: Bug
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Description Petr Pisar 2012-04-05 11:15:52 EDT
There is a regression in PCRE 8.21 when matching with JIT in UTF-8 mode. This should not match:

echo ETA | pcregrep -u '(?i)(?<!b|th|z|m|p|^)eta(?!\w)'

Reported to upstream <http://bugs.exim.org/show_bug.cgi?id=1231> and fixed in SVN commit

r953 | zherczeg | 2012-03-29 19:41:57 +0200 (Čt, 29 bře 2012) | 1 line
Fixed a bug for backward assertions with REVERSE 0 in the JIT compiler

F17 and F18 are affected. F16 and older releases are not.
Comment 1 Petr Pisar 2012-04-05 11:47:07 EDT
Fixed as pcre-8.30-3.fc18 in F18.
Comment 2 Fedora Update System 2012-04-05 12:13:09 EDT
pcre-8.21-3.fc17 has been submitted as an update for Fedora 17.
Comment 3 Fedora Update System 2012-04-05 14:23:59 EDT
Package pcre-8.21-3.fc17:
* should fix your issue,
* was pushed to the Fedora 17 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing pcre-8.21-3.fc17'
as soon as you are able to.
Please go to the following url:
then log in and leave karma (feedback).
Comment 4 Fedora Update System 2012-04-11 22:43:41 EDT
pcre-8.21-3.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

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