Bug 168964 - FILESAVE DOCX Exported document can freeze or crash Word on open
Summary: FILESAVE DOCX Exported document can freeze or crash Word on open
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: filters and storage (show other bugs)
Version:
(earliest affected)
7.0.0.3 release
Hardware: All All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: bibisected, bisected, regression
Depends on:
Blocks: DOCX-Corrupted DOCX-OLE-Objects
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Reported: 2025-10-20 06:31 UTC by Aron Budea
Modified: 2025-10-21 07:47 UTC (History)
0 users

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Crash report or crash signature:

Attachments
ooo52593-1.odt (15.43 KB, application/vnd.oasis.opendocument.text)
2025-10-20 06:31 UTC, Aron Budea 		Details
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Description Aron Budea 2025-10-20 06:31:29 UTC 
Created attachment 203449 [details]
ooo52593-1.odt

The attached ODT, ooo52593-1.odt is from an old AOO bug report. Save it into DOCX, and try opening it in Word.

=> Word will hang or crash trying to open the DOCX.

Observed with LO 26.2.0.0.alpha0+ (8ea8e254a3151f5390f3a10ff156fcaf8e7c5d5c), 7.0.0.3 / Windows.

This is a regression from the following commit in 7.0
https://git.libreoffice.org/core/commit/2150fdc7d0f63288ac56c33cb898589512057642
author		Attila Bakos <bakos.attilakaroly@nisz.hu>	Thu Apr 09 17:10:22 2020 +0200
committer	László Németh <nemeth@numbertext.org>	Tue Apr 28 10:18:08 2020 +0200

"tdf#131539 DOCX export: fix position of OLE objects"

In the saved DOCX before the change, in word/document.xml, one can find the following:
<v:shape id="ole_rId2" style="width:35.3pt;height:17.05pt" o:ole="">

This changes with the fix:
<v:shape id="ole_rId2" style="position:absolute;margin-left:10.8pt;margin-top:9.2pt;width:35.3pt;height:17.05pt;mso-position-horizontal-relative:text;mso-position-vertical-relative:text" o:ole="">

Such changes are the cause of the hang/crash.
Comment 1 fpy 2025-10-21 04:06:05 UTC 
One could argue -> NOTOURBUG :/

Anyhow, would make sense to specify what version of Word/OS is concerned.
Comment 2 Aron Budea 2025-10-21 07:47:26 UTC 
(In reply to fpy from comment #1)
> One could argue -> NOTOURBUG :/
Office generally saves files in a way that doesn't crash their software, and Writer should produce such documents as well, as the main purpose of using DOCX format is interoperability.

Tested with Word 2013 and 2019.