[Pkg-samba-maint] Bug#943903: samba 2:4.11.1+dfsg-1 server breaks mount.cifs from cifs-utils 2:6.9-1

[Michael Tokarev]

Control: tag -1 + moreinfo

On Thu, 31 Oct 2019 11:53:52 -0400 Marvin Renich <mrvn at renich.org> wrote:
> Package: samba
> Version: 2:4.11.1+dfsg-1
> Severity: normal
> 
> I plan to clone this bug to cifs-utils, as it is unclear which package has the bug.
> 
> After upgrading from samba 2:4.9.13+dfsg-1 to 2:4.11.0+dfsg-10 on a server machine, mount.cifs from cifs-utils 2:6.9-1
> on a different machine fails to connect with "mount error(13): Permission denied".  Subsequently upgrading samba to
> 2:4.11.1+dfsg-1 did not help.
> 
> Downgrading samba to stable 2:4.9.5+dfsg-5+deb10u1 on the server fixes the problem.  Adding a snapshot version to figure
> out what needed to be downgraded to get version 2:4.9.13+dfsg-1 was deemed not worth the effort, as my daily backup on
> the client machine (which mounts the remote cifs share) was running fine when the server had 2:4.9.13+dfsg-1.

Hi!

Is this still a problem in current bullseye version of samba (4.13) and cifs-utils?
If yes, can you please try samba version 4.16 (available in bullseye-backports)?

Thank you!

/mjt