I did the same (changing the mode to 1777).
I checked the permissions of /var/lock on a Debian system (I had no other Ubuntu system to check) and there the permissions are 1777. According to the changelog the permissions were changed for Ubuntu because of security concerns.
I did the same (changing the mode to 1777).
I checked the permissions of /var/lock on a Debian system (I had no other Ubuntu system to check) and there the permissions are 1777.
According to the changelog the permissions were changed for Ubuntu because of security concerns.