For me this happened after a copy of files from one partition to another (with cp).
The solution was: chmod +s /sbin/unix_chkpwd
The cause was: the default options of cp don't keep setuid bits,
For me this happened after a copy of files from one partition to another (with cp).
The solution was: chmod +s /sbin/unix_chkpwd
The cause was: the default options of cp don't keep setuid bits,