*** This bug is a duplicate of bug 2033732 ***
https://bugs.launchpad.net/bugs/2033732
** This bug has been marked a duplicate of bug 2033732
SMB 1 broken in kernel linux-generic-hwe-22.04 (version 6.2.0-31)
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https://bugs.launchpad.net/bugs/2034033
Title:
Ubuntu 22.04 update to 6.2.0-31 kernel version breaks mount.cifs to
vers=1.0 server cifs_mount failed w/return code = -5
Status in linux-signed-hwe-6.2 package in Ubuntu:
New
Bug description:
My Xubuntu system this weekend alerted me to a new kernel update being
available. The following versions are the existing/working version:
linux-image-6.2.0-26-generic 6.2.0-26.26~22.04.1
And the updated/not working version:
linux-image-6.2.0-31-generic 6.2.0-31.31~22.04.1
And yes I run my system with:
linux-image-generic-hwe-22.04 6.2.0.31.31~22.04.8
Booted to the 6.2.0-31 kernel version, attempting to do a mount.cifs
operation to our Samba NT4 PDC, results in the following output into syslog:
Sep 4 08:03:24 jaakob kernel: [ 107.703886] FS-Cache: Loaded
Sep 4 08:03:24 jaakob kernel: [ 107.824160] Key type cifs.spnego registered
Sep 4 08:03:24 jaakob kernel: [ 107.824169] Key type cifs.idmap registered
Sep 4 08:03:24 jaakob kernel: [ 107.824454] Use of the less secure dialect
vers=1.0 is not recommended unless required for access to very old servers
Sep 4 08:03:24 jaakob kernel: [ 107.824454]
Sep 4 08:03:24 jaakob kernel: [ 107.824457] CIFS: VFS: Use of the less
secure dialect vers=1.0 is not recommended unless required for access to very
old servers
Sep 4 08:03:24 jaakob kernel: [ 107.824460] CIFS: Attempting to mount
\\ldslnx01\data
Sep 4 08:03:24 jaakob kernel: [ 107.859554] CIFS: VFS: cifs_mount failed
w/return code = -5
And none of the Samba mounts will establish.
Booting back to the prior 6.2.0-26 kernel version, Samba mounts work
just fine.
I use the following switches to the mount.cifs command in order to
establish connections to our Samba NT4 PDC:
"-o
credentials=/home/mdlueck/.smbcredentials,uid=mdlueck,gid=mdlueck,dir_mode=0777,file_mode=0666,nobrl,vers=1.0"
That last vers= option was the last that needed to be added to continue
making use of our Samba NT4 style PDC.
Since it is a version upgrade of only the kernel, not Samba package, I
would not think that yet another switch to mount.cifs was needed in
order to continue connecting successfully. So did the latest Kernel
update suddenly break Samba's mount.cifs vers=1.0 support?
Nothing gets logged to our Samba server for the failed mount attempt.
Booting for not back to the working 6.2.0-26 kernel version. Please
kindly advise.
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