multipath-tools 0.15.0

multipath-tools 0.15.0, 2026/07

User-visible changes

• All path checkers run in asynchronous mode now by default, using a new
  generic asynchronous checker framework. This improves the stability of
  multipathd in the presence of non-responsive devices when using path
  checkers other than tur and directio. Use the force_sync
  parameter in multipath.conf to switch back to the previous, synchronous
  behavior, especially if you observe strong spikes of CPU load on systems
  with a lot of path devices. Note that the likelihood of such spikes should
  be strongly reduced since multipath-tools 0.10.0. Commit 6f7daba ff.
• The configuration options rr_min_io, rr_min_io_rq, and rr_weight are now
  deprecated and have no effect. These options have not been supported by the
  kernel since version 4.6. Users should remove them from multipath.conf.
  Commits 91f91c7 ff.
• Fix ALUA asymmetric access state descriptions in multipathd logs, so that
  the same terms are used as by the kernel ("lba-dependent", "transitioning").
  Commit fa2eb12.
• Don't set a hardware handler for bio-based multipath devices. The kernel
  rejects this anyway. Commit b6c7aab.

Bug fixes

• Fix WWID detection for legacy devices that use the older SCSI-2 VPD page
  0x83 format for their device identifier. Commit ed6f6ae.
• kpartx: Fix an integer overflow in the GPT partition table size calculation.
  A crafted partition table with an extremely large number of partition entries
  could trigger the overflow. Commit 8697ea7, 15310a3.
• kpartx: Fix several issues in the DASD partition table reader that could be
  triggered by a maliciously crafted disk image. Commits c616a95 ff.
• Fix duplicate "checker timed out" log messages when log_checker_err is
  set to once. Fixes 0.5.0. Commit 8933b22.
• Avoid potential buffer overflows in the iet and datacore prioritizers.
  Commit 4611f97.
• iet prioritizer: avoid misleading error message with systemd 256 and
  newer, and properly use udev to derive path parameters. Commit c493f1f.
  Fixes #145.
• An overlong partition delimiter (-p option) could cause kpartx to crash.
  Fix it. Commit a2f344a.
• Even with the libudev wrapper code introduced in 0.14.0, multipathd ran into
  use-after-free errors in tests where multipathd was restarted frequently.
  Fix this by preventing thread cancellation during libudev calls.
  Fixes #152.
  Commit 47a654f.
• libmpathpersist: Fix self-preemption without holding a reservation.
  Fixes 0.13.0. Commit 4260774.

Other changes

• Man page improvements

CI

• Removed the check_spelling GitHub Action after a
  security incident
  reported against the action's source repository.
• Added coredump collection in the CI.
• GitHub action updates related to node 20 depreciation on GitHub.
• Fixes for various errors in the CI.