With an updated Ubuntu 23.10 installation (as of 2024-01-25), running anything with sudo fails to ask for a password. It just hangs forever. Running strace, I noticed that it was blocking on a read() from the fd pointing to the tty, so on a hunch I just entered the password without the prompt, and then the command runs as expected.
Has anyone seen this behaviour?
sudo is at version 1.9.14p2-1ubuntu1, and permissions on /dev/tty look normal:
$ ls -l /dev/ttycrw-rw-rw- 1 root tty 5, 0 2024-01-25 15:17 /dev/tty$ groupspeter adm cdrom sudo dip plugdev lxd(I've rebooted a couple of times, just to make sure the system wasn't in a weird state).
If I press Enter once I do get a password prompt:
$ sudo ls<press Enter>[sudo] password for peter: ^Csudo: 1 incorrect password attemptUPDATE: I had installed the libpam-tacplus package (there is a very old version in Ubuntu, which I am working replacing with a modern version as the product I am developing at $DAYJOB requires it). Removing this package restores the prompt.
