CHPC - Debugging disabled on Linux system due to vulnerability – Incident details

Windows servers experiencing major outage

Debugging disabled on Linux system due to vulnerability

Resolved
Degraded performance
Started 5 months agoLasted 1948 hours 35 minutes

Affected

General Environment (GE)

Degraded performance from 6:00 PM to 11:00 PM, Operational from 11:00 PM to 10:35 PM

HPC clusters

Degraded performance from 6:00 PM to 11:00 PM, Operational from 11:00 PM to 10:35 PM

Virtual machines (VMs)

Degraded performance from 6:00 PM to 11:00 PM, Operational from 11:00 PM to 10:35 PM

Computational servers, independent of clusters

Degraded performance from 6:00 PM to 6:00 AM, Operational from 6:00 AM to 10:35 PM

Protected Environment (PE)

Degraded performance from 6:00 PM to 11:00 PM, Operational from 11:00 PM to 10:35 PM

HPC clusters

Degraded performance from 6:00 PM to 11:00 PM, Operational from 11:00 PM to 10:35 PM

Updates
  • Resolved
    UTC
    Resolved

    Debugging features have been reenabled on CHPC systems following a recent operating system kernel update. The features that were disabled as a precaution should now be available. Thank you for your patience. If you encounter any issues, please contact the CHPC at helpdesk@chpc.utah.edu.

  • Identified
    UTC
    Identified

    A new Linux kernel vulnerability has been announced last night. A workaround mitigation before patched kernels are released involves disabling the ptrace scope, which among others prevents debuggers from attaching to executables. Due to this, debugging on our Linux systems will be disabled till the kernels are patched.
    More details on this vulnerability are at https://almalinux.org/blog/2026-05-15-ssh-keysign-pwn-cve-2026-46333/.

    If you have immediate debugging needs, please, consult with our helpdesk@chpc.utah.edu.