pam_stack is deprecated as it won't be accepted upstream and there is a replacement for its functionality. Also there is a new common pam configuration file for all config utilities (system-config-*). Please use the attached pam configuration files for samba. I'm not really sure what's the purpose of the samba.pamd file as it doesn't seem to be used. So I only provide the samba.pamd.stack file which is installed.
Created attachment 119764 [details] samba.pamd.stack
*** Bug 211123 has been marked as a duplicate of this bug. ***
There is no pam_stack.so anymore in Fedora 7 and samba still has it in its config in /etc/pam.d/samba!
Fixed in 3.0.24-5 that will be out today, thanks