Package: cifs-utils
Version: 2:7.3-1
Severity: important

Dear Maintainer,

we are testing the upgrade of our Debian clients with kerberized cifs
mounts and observe the following:

With kernel and cifs-utils from trixie, mounting the cifs home directories fails because cifs.upcall looks for the wrong ticket file:

...
Mai 14 08:04:20 r205pc06 cifs.upcall[1860]: upcall_target=app, switching namespaces to application thread
Mai 14 08:04:20 r205pc06 cifs.upcall[1860]: get_cachename_from_process_env: pid == 0
Mai 14 08:04:20 r205pc06 cifs.upcall[1860]: get_existing_cc: default ccache is FILE:/tmp/krb5cc_960601173
^^^^^^^^^^^^^^^^^^^^^^^^^^
wrong ticket file name

Using the kernel from experimental (6.14) fixes the problem.

Downgrading cifs-utils to 7.0 also fixes the problem (with trixie's 6.12 kernel)
and things work as expected.

We observed that using the mount option upcall_target is not known by trixie's kernel (but is known and seems to work with 6.14).

Best regards,

Andi





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-- System Information:
Debian Release: trixie/sid
APT prefers testing
APT policy: (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.27-amd64 (SMP w/12 CPU threads; PREEMPT)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages cifs-utils depends on:
ii libc6 2.41-7
ii libcap-ng0 0.8.5-4+b1
ii libgssapi-krb5-2 1.21.3-5
ii libkeyutils1 1.6.3-6
ii libkrb5-3 1.21.3-5
ii libpam0g 1.7.0-3
ii libtalloc2 2:2.4.3+samba4.22.1+dfsg-1
ii libwbclient0 2:4.22.1+dfsg-1
ii python3 3.13.3-1

Versions of packages cifs-utils recommends:
ii keyutils 1.6.3-6

Versions of packages cifs-utils suggests:
ii bash-completion 1:2.16.0-7
ii smbclient 2:4.22.1+dfsg-1
pn winbind <none>

-- no debconf information

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