This looks like deb corruption to me.
** Changed in: samba (Ubuntu)
Status: New = Won't Fix
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package smbclient 2:3.2.3-1ubuntu3.1 failed to install/upgrade: lecture courte
(short read) dans ??buffer_copy?? (backend dpkg-deb pendant
??./usr/bin/smbget??)
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/20331257/Dependencies.txt
** Attachment added: DpkgTerminalLog.txt
http://launchpadlibrarian.net/20331259/DpkgTerminalLog.txt
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package smbclient 2:3.2.3-1ubuntu3.1 failed to install/upgrade: lecture courte
(short