slurm-announce May 2025

slurm-announce@lists.schedmd.com

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Slurm release candidate version 25.05.0rc1 is available for testing
by Marshall Garey 13 May '25

13 May '25

We are pleased to announce the availability of Slurm release candidate 25.05.0rc1. To highlight some new features coming in 25.05: - Support for defining multiple topology configurations, and varying them by partition. - Support for tracking and allocating hierarchical resources. - Dynamic nodes can be dynamically added to the topology. - topology/block - Allow for gaps in the block layout. - Support for encrypting all network communication with TLS. - jobcomp/kafka - Optionally send job info at job start as well as job end. - Support an OR operator in --license requests. - switch/hpe_slingshot - Support for > 252 ranks per node. - switch/hpe_slingshot - Support mTLS authentication to the fabric manager. - sacctmgr - Add support for dumping and loading QOSes. - srun - Add new --wait-for-children option to keep the step running until all launched processes have been launched (cgroup/v2 only). - slurmrestd - Add new endpoint for creating reservations. This is the first release candidate of the upcoming 25.05 release series, and represents the end of development for this release, and a finalization of the RPC and state file formats. If any issues are identified with this release candidate, please report them through https://bugs.schedmd.com against the 25.05.x version and we will address them before the first production 25.05.0 release is made. Please note that the release candidates are not intended for production use. A preview of the updated documentation can be found at https://slurm.schedmd.com/archive/slurm-master/ . Slurm can be downloaded from https://www.schedmd.com/download-slurm/. The changelog for 25.05.0rc1 can be found here: https://github.com/SchedMD/slurm/blob/master/CHANGELOG/slurm-25.05.md#chang… -- Marshall Garey Release Management, Support, and Development SchedMD LLC - Commercial Slurm Development and Support

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Slurm versions 24.11.5, 24.05.8, and 23.11.11 are now available (CVE-2025-43904)
by Tim Wickberg 07 May '25

07 May '25

Slurm versions 24.11.5, 24.05.8, and 23.11.11 are now available and include a fix for a recently discovered security issue. SchedMD customers were informed on April 23rd and provided a patch on request; this process is documented in our security policy. [1] A mistake with permission handling for Coordinators within Slurm's accounting system can allow a Coordinator to promote a user to Administrator. (CVE-2025-43904) Thank you to Sekou Diakite (HPE) for reporting this. Downloads are available at https://www.schedmd.com/downloads.php . Release notes follow below. - Tim [1] https://www.schedmd.com/security-policy/ -- Tim Wickberg Chief Technology Officer, SchedMD LLC Commercial Slurm Development and Support > * Changes in Slurm 24.11.5 > ========================== > -- Return error to scontrol reboot on bad nodelists. > -- slurmrestd - Report an error when QOS resolution fails for v0.0.40 > endpoints. > -- slurmrestd - Report an error when QOS resolution fails for v0.0.41 > endpoints. > -- slurmrestd - Report an error when QOS resolution fails for v0.0.42 > endpoints. > -- data_parser/v0.0.42 - Added +inline_enums flag which modifies the > output when generating OpenAPI specification. It causes enum arrays to not > be defined in their own schema with references ($ref) to them. Instead they > will be dumped inline. > -- Fix binding error with tres-bind map/mask on partial node allocations. > -- Fix stepmgr enabled steps being able to request features. > -- Reject step creation if requested feature is not available in job. > -- slurmd - Restrict listening for new incoming RPC requests further into > startup. > -- slurmd - Avoid auth/slurm related hangs of CLI commands during startup > and shutdown. > -- slurmctld - Restrict processing new incoming RPC requests further into > startup. Stop processing requests sooner during shutdown. > -- slurmcltd - Avoid auth/slurm related hangs of CLI commands during > startup and shutdown. > -- slurmctld: Avoid race condition during shutdown or reconfigure that > could result in a crash due delayed processing of a connection while > plugins are unloaded. > -- Fix small memleak when getting the job list from the database. > -- Fix incorrect printing of % escape characters when printing stdio > fields for jobs. > -- Fix padding parsing when printing stdio fields for jobs. > -- Fix printing %A array job id when expanding patterns. > -- Fix reservations causing jobs to be held for Bad Constraints > -- switch/hpe_slingshot - Prevent potential segfault on failed curl > request to the fabric manager. > -- Fix printing incorrect array job id when expanding stdio file names. > The %A will now be substituted by the correct value. > -- Fix printing incorrect array job id when expanding stdio file names. > The %A will now be substituted by the correct value. > -- switch/hpe_slingshot - Fix vni range not updating on slurmctld restart > or reconfigre. > -- Fix steps not being created when using certain combinations of -c and > -n inferior to the jobs requested resources, when using stepmgr and nodes > are configured with CPUs == Sockets*CoresPerSocket. > -- Permit configuring the number of retry attempts to destroy CXI service > via the new destroy_retries SwitchParameter. > -- Do not reset memory.high and memory.swap.max in slurmd startup or > reconfigure as we are never really touching this in slurmd. > -- Fix reconfigure failure of slurmd when it has been started manually and > the CoreSpecLimits have been removed from slurm.conf. > -- Set or reset CoreSpec limits when slurmd is reconfigured and it was > started with systemd. > -- switch/hpe-slingshot - Make sure the slurmctld can free step VNIs after > the controller restarts or reconfigures while the job is running. > -- Fix backup slurmctld failure on 2nd takeover. > -- Testsuite - fix python test 130_2. > -- Fix security issue where a coordinator could add a user with elevated > privileges. CVE-2025-43904. > * Changes in Slurm 24.05.8 > ========================== > -- Testsuite - fix python test 130_2. > -- Fix security issue where a coordinator could add a user with elevated > privileges. CVE-2025-43904. > * Changes in Slurm 23.11.11 > =========================== > -- Fixed a job requeuing issue that merged job entries into the same SLUID > when all nodes in a job failed simultaneously. > -- Add ABORT_ON_FATAL environment variable to capture a backtrace from any > fatal() message. > -- Testsuite - fix python test 130_2. > -- Fix security issue where a coordinator could add a user with elevated > privileges. CVE-2025-43904.

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