[Pkg-samba-maint] Bug#1022826: Bug#1022826: samba-common-bin: testparm fails if given a config file, due to libpopt 1.19+dfsg-1

[Arnaud Rebillout]

On Wed, 26 Oct 2022 18:13:51 +0300 Michael Tokarev <mjt at tls.msk.ru> wrote:
 > Control: tag -1 + moreinfo unreproducible
 >
 > 26.10.2022 17:45, Arnaud Rebillout wrote:
 > > Package: samba-common-bin
 > > Severity: normal
 > > User: devel at kali.org
 > > Usertags: origin-kali
 > >
 > > Dear Maintainer,
 > >
 > > This command fails:
 > >
 > > # testparm /etc/samba/smb.conf --suppress-prompt
 > > Load smb config files from <<garbage-characters-here>>
 > > Error loading services.
 >
 > Which version of samba-common-bin is that?
 >
 > I was about to close this bug right away because you didn't
 > specify a version. But I'd give it a try anyway.
 >
 > The thing is that the libpopt is bundled with samba sources, and
 > current samba in debian unstable (4.16.6+dfsg-3) already has the
 > necessary fixes for it. There should be, in theory, no issues with
 > the fixed/new libpopt.
 >
 > I just tested that one with current libpopt, - it works as expected
 > here.

Sorry about forgetting the version.

So this is version 2:4.16.6+dfsg-3. Right now I can fire a Debian sid 
container and reproduce the issue with:

   # apt update && apt install -y smbclient
   # testparm /etc/samba/smb.conf --suppress-prompt
   Load smb config files from gW???U
   Error loading services.

NB: you MUST pass /etc/samba/smb.conf in argument to trigger the issue.

The issue with libpopt seems to be documented at 
https://github.com/rpm-software-management/popt/issues/80.

However I didn't notice that samba embeds its own libpopt, so now I'm 
confused. Are you 100% sure it's the embedded lib that is used?

   # ldd /usr/bin/testparm | grep popt
   libpopt.so.0 => /lib/x86_64-linux-gnu/libpopt.so.0 (0x00007f52a45d1000)

Or does the line above suggests that it uses the shared library? (real 
question, I'm not familiar with ldd)

Cheers, and thanks for the quick reply.

Arnaud