[Bug 2051952] Autopkgtest regression report (unzip/6.0-28ubuntu1.1)
Ubuntu SRU Bot
2051952 at bugs.launchpad.net
Thu Feb 8 05:13:08 UTC 2024
All autopkgtests for the newly accepted unzip (6.0-28ubuntu1.1) for mantic have finished running.
The following regressions have been reported in tests triggered by the package:
mysql-8.0/8.0.36-0ubuntu0.23.10.1 (armhf)
Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].
https://people.canonical.com/~ubuntu-archive/proposed-
migration/mantic/update_excuses.html#unzip
[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions
Thank you!
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https://bugs.launchpad.net/bugs/2051952
Title:
unzip rejects Microsoft OneDrive zip files
Status in unzip package in Ubuntu:
Fix Released
Status in unzip source package in Focal:
Fix Committed
Status in unzip source package in Jammy:
Fix Committed
Status in unzip source package in Mantic:
Fix Committed
Status in unzip source package in Noble:
Fix Released
Bug description:
[Impact]
unzip rejects Microsoft OneDrive zip files. See the detailed explanation here:
https://www.bitsgalore.org/2020/03/11/does-microsoft-onedrive-export-
large-ZIP-files-that-are-corrupt
tl;dr;
Microsoft mishandles the "Total number of disks" field when using the ZIP64 extension. It should start at 1, they use 0, which isn't a valid value. Unzip doesn't properly handle the invalid value.
[Test Plan]
- Download the test zip file from comment #1.
- unzip should extract it without issue (it contains a test.txt text file)
- if unzip fails, it will spew out a weird error message like the following:
$ unzip test.zip
Archive: test.zip
error [test.zip]: missing 4294967098 bytes in zipfile
(attempting to process anyway)
error [test.zip]: start of central directory not found;
zipfile corrupt.
(please check that you have transferred or created the zipfile in the
appropriate BINARY mode and that you have compiled UnZip properly)
[Where problems could occur]
This simple patch just accepts 0 as a valid total number of disks. I suppose if it was wrong it would mishandle multi-disk archives, though multi-disk archives should have a good value in that field.
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