Due to yet another security problem in the Linux kernel discovered tonight (currently only known as “ssh-keysign-pwn” with no assigned CVE number yet), we have had to deploy a mitigation across all our clusters. As a result, the ‘ptrace’ system call is currently restricted, and that breaks a few things – mostly debugging tools like “gdb”, but also others that might be a bit unexpected.
In particular, we know of the following things that are currently broken:
- gdb
- apptainer pull
These will remain broken until a proper patch for the aforementioned security-problem becomes available. In other words: not before next week.