Bug#1069598: cifs-utils: When mounting a samba-share by a client with kernel 6.1.0-20-amd64, some subdirectories and files within the mounted share are missing

2024-05-05 Thread Bernhard Übelacker

Hello,
this seems to be the same issue as here:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1069102
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1069092

And the fix seems to be prepared here:
https://salsa.debian.org/kernel-team/linux/-/commit/37a0ac93027302ffbfae41ddc844312e88e72eef

Kind regards,
Bernhard



Bug#1069598: cifs-utils: When mounting a samba-share by a client with kernel 6.1.0-20-amd64, some subdirectories and files within the mounted share are missing

2024-04-21 Thread tmx314
Package: cifs-utils
Version: 2:7.0-2
Severity: important

Dear Maintainer,

When mounting a samba-share by a Debian Bookworm client, kernel 6.1.0-20-amd64, 
on this client some subdirectories and files within the mounted share are 
missing.
I didn't change the permissions on the server and all the files and directories 
are furthermore existent on the server.
After booting the Client journalctl shows on this client many lines like:
Apr 16 14:33:08 tmx314 kernel: CIFS: VFS: directory entry name would overflow 
frame end of buf a18bb84d
Apr 16 14:33:08 tmx314 kernel: CIFS: VFS: directory entry name would overflow 
frame end of buf 2b19fed0
.. 

Booting the client with kernel 6.1.0-15-amd64 or 6.1.0-18-amd64 removes the 
error.
Using the mount-option "noserverino" or changing "vers" from default to another 
value has no effect.

Server: Debian Bookworm, Kernel 6.1.0-20-amd64, Samba 2:4.17.12+dfsg-0+deb12u1
# testparm
interfaces = 127.0.0.0/8 192.168.1.0/24
log file = /var/log/samba/log.%m
logging = file
map to guest = Bad User
max log size = 1000
obey pam restrictions = Yes
pam password change = Yes
panic action = /usr/share/samba/panic-action %d
passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* 
%n\n *password\supdated\ssuccessfully* .
passwd program = /usr/bin/passwd %u
preferred master = Yes
server min protocol = SMB2
server role = standalone server
unix password sync = Yes
usershare allow guests = Yes
workgroup = theo
idmap config * : backend = tdb

..
[daten-theo]
create mask = 0660
directory mask = 0770
force create mode = 0020
force directory mode = 0030
force group = theo
force user = theo
path = /daten/daten-theo
valid users = user1 user2 ...
write list = user1 

No errors are found in the server logs.

Client also Debian Bookworm, Kernel 6.1.0-20-amd64, cifs-utils 2:7.0-2
I am writing this message on the involved client and boots it now with the 
Kernel listed below in the System Information to avoid the error.
Same problem is found on a second Debian Bookworm client.
/etc/fstab:

//server/daten-theo /home/theo/daten-theo cifs 
vers=default,_netdev,credentials=/root/smbcredtheo,uid=theo,gid=theo,rw,file_mode=0660,dir_mode=0770,nofail
 0 0 



-- System Information:
Debian Release: 12.5
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.1.0-18-amd64 (SMP w/8 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 2.36-9+deb12u4
ii  libcap-ng00.8.3-1+b3
ii  libgssapi-krb5-2  1.20.1-2+deb12u1
ii  libkeyutils1  1.6.3-2
ii  libkrb5-3 1.20.1-2+deb12u1
ii  libpam0g  1.5.2-6+deb12u1
ii  libtalloc22.4.0-f2
ii  libwbclient0  2:4.17.12+dfsg-0+deb12u1
ii  python3   3.11.2-1+b1

Versions of packages cifs-utils recommends:
pn  keyutils  

Versions of packages cifs-utils suggests:
ii  bash-completion  1:2.11-6
ii  smbclient2:4.17.12+dfsg-0+deb12u1
pn  winbind  

-- no debconf information