Regression - cannot mount guest cifs shares - cifs.ko complains "cifs: Bad value for 'password2'"

Description:

On recent kernels when mounting cifs guest share, previously working configurations are broken with error:

cifs: Bad value for 'password2'

Additional info:

  • package version(s): linux-6.13.5.arch1-1 linux-6.13.7.arch1-1

  • config and/or log files:

  • link to upstream bug report, if any: none found

Steps to reproduce:

mount -t cifs //guestshare/public /mnt/public -o guest

more detailed information

https://bbs.archlinux.org/viewtopic.php?id=303927