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Bug #51289 unaligned memory access in enchant.c
Submitted: 2010-03-13 04:26 UTC Modified: 2010-11-15 21:12 UTC
Votes:2
Avg. Score:3.0 ± 0.0
Reproduced:0 of 0 (0.0%)
From: geissert@php.net Assigned: geissert (profile)
Status: Closed Package: Enchant related
PHP Version: 5.3.2 OS: linux ia64
Private report: No CVE-ID: None
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 [2010-03-13 04:26 UTC] geissert@php.net 
Description:
------------
ext/enchant/tests/bug13181.php triggers an unaligned memory access in enchant.c's enchant_dict_suggest().

enchant_dict_quick_check() is also affected, so adding a test case (the one from the documentation but simply count()ing the returned array for >0, for example) is a good idea.

Attached patch fixes the first case.


Expected result:
----------------
resource(5) of type (enchant_dict)
resource(5) of type (enchant_dict)
resource(6) of type (enchant_broker)
resource(6) of type (enchant_broker)
resource(7) of type (enchant_dict)
resource(7) of type (enchant_dict)

Actual result:
--------------
resource(5) of type (enchant_dict)
resource(5) of type (enchant_dict)
Bus error

Patches

enchant_unaligned_memory_access.patch (last revision 2010-03-13 03:35 UTC by geissert@php.net)

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2010-03-13 04:35 UTC] geissert@php.net 
The following patch has been added/updated:

Patch Name: enchant_unaligned_memory_access.patch
Revision:   1268451320
URL:        http://bugs.php.net/patch-display.php?bug=51289&patch=enchant_unaligned_memory_access.patch&revision=1268451320
 [2010-03-14 15:44 UTC] pajoye@php.net
-Status: Open +Status: Assigned -Assigned To: +Assigned To: geissert
 [2010-03-14 15:44 UTC] pajoye@php.net 
Please add the necessary test cases and apply the patch.

By the way, please apply the patch as well to pecl/enchant so it will be in the next release.
 [2010-05-02 01:32 UTC] geissert@php.net 
Automatic comment from SVN on behalf of geissert
Revision: http://svn.php.net/viewvc/?view=revision&revision=298863
Log: Fix unaligned memory accesses in enchant (bug #51289)
 [2010-05-02 01:33 UTC] geissert@php.net
-Status: Assigned +Status: Closed
 [2010-05-02 01:33 UTC] geissert@php.net 
This bug has been fixed in SVN.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.
 [2010-11-15 21:12 UTC] felipe@php.net
-Package: *Spelling functions +Package: Enchant related
 
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