Wow, this bug has a long history.
I can confirm the issue as well with 4.1.6 and 4.2.1 I've isolated to the line:
auth optional pam_smbpass.so migrate
Configured in /etc/pam.d/common-auth
That line is added by libpam package installation and also by using pam-auth-update to enable SMB Password Synchronization
For 4.2.1 the error however occurs in su:
*** Error in `su': double free or corruption (fasttop): 0x000000000110d800 *** Aborted
Which happens after the password is entered.
Wow, this bug has a long history.
I can confirm the issue as well with 4.1.6 and 4.2.1 I've isolated to the line:
auth optional pam_smbpass.so migrate
Configured in /etc/pam. d/common- auth
That line is added by libpam package installation and also by using pam-auth-update to enable SMB Password Synchronization
For 4.2.1 the error however occurs in su:
*** Error in `su': double free or corruption (fasttop): 0x000000000110d800 ***
Aborted
Which happens after the password is entered.