https://bugs.documentfoundation.org/show_bug.cgi?id=173637
Bug ID: 173637
Summary: Cannot edit DOCX with very long filename because
LibreOffice cannot create lock file
Product: LibreOffice
Version: 26.8.0.3 release
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Writer
Assignee: [email protected]
Reporter: [email protected]
Description:
LibreOffice opens a writable DOCX as read-only when the document filename is
very long.
The document itself is writable, and the containing directory is also writable.
Renaming the same file to a short filename makes it editable immediately.
LibreOffice shows an error saying it cannot create the lock file for exclusive
access because of permissions or insufficient free space.
This appears to happen because LibreOffice constructs a lock filename like:
.~lock.<original filename>#
If the original filename is already near the filesystem filename-length limit,
the generated lock filename can exceed that limit.
Steps to Reproduce:
1. Create or download a DOCX whose filename is close to the filesystem
filename-length limit.
2. Place it in a directory that is writable by the current user.
3. Confirm that the DOCX itself is writable.
4. Open the DOCX in LibreOffice Writer.
5. LibreOffice displays an error that it cannot create the lock file and offers
to open the file read-only.
6. Rename the same DOCX to a short filename, for example document.docx.
7. Open it again in LibreOffice Writer.
Actual Results:
LibreOffice fails to create the lock file and opens/offers to open the document
read-only, despite the document and directory being writable.
Expected Results:
LibreOffice should allow the document to be edited. Lock-file handling should
work even when the original document filename is close to the filesystem
filename-length limit, for example by shortening or hashing the generated lock
filename.
Reproducible: Always
User Profile Reset: Yes
Additional Info:
None
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