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Bug 1048101 - Range check wrongly optimized in JIT
Summary: Range check wrongly optimized in JIT
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: pcre
Version: 7.0
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Petr Pisar
QA Contact: Martin Kyral
URL: http://bugs.exim.org/show_bug.cgi?id=...
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-01-03 07:32 UTC by Petr Pisar
Modified: 2014-06-18 05:05 UTC (History)
1 user (show)

Fixed In Version: pcre-8.32-10.el7
Doc Type: Bug Fix
Doc Text:
Cause: Matching PCRE pattern containing character ranges with enabled JIT mode. Consequence: The expressions does not match in all cases that match without JIT. Fix: An upstream fix has been applied to optimize character ranges properly in JIT mode while compiling the pattern. Result: PCRE behaves identically regardless of enabling JIT.
Clone Of: 1048097
Environment:
Last Closed: 2014-06-12 08:38:36 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
Fix (1.50 KB, patch)
2014-01-09 14:13 UTC, Petr Pisar 		no flags Details | Diff
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Description Petr Pisar 2014-01-03 07:32:29 UTC 
+++ This bug was initially created as a clone of Bug #1048097 +++

$ printf '/[efij]/S+\ne\n' | pcretest
PCRE version 8.32 2012-11-30

  re> data> No match
data> 

This should match "e". This is a regression introduced in 8.32 and affects JITted code path.

Reported by upstream <http://bugs.exim.org/show_bug.cgi?id=1423>, a fix is provided there.

Fedoras ≥ 19 are affected.

-----

RHEL 7 is affected (pcre-8.32-8.el7.x86_64).
Comment 1 Petr Pisar 2014-01-09 14:13:21 UTC 
Created attachment 847676 [details]
Fix
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