[Bug 2044657] Re: zfs block cloning file system corruption

[Dimitri John Ledkov]

seth-arnold: yes, I do think we need to backport it all the way back.
And since it is kernel code, it sort of should go via normal SRU, and be
integrated into a kernel cycle and release over time. As actually
releasing zfs-linux into security pocket will not actually do much for
most users that are running kernel compiled in zfs.

I will discuss with kernel cycle leads to see how to fit this in.

** No longer affects: linux-hwe-6.2 (Ubuntu)

** No longer affects: linux-hwe-6.5 (Ubuntu)

** Also affects: zfs-linux (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Also affects: zfs-linux (Ubuntu Mantic)
   Importance: Undecided
       Status: New

** Also affects: zfs-linux (Ubuntu Noble)
   Importance: Undecided
       Status: Confirmed

** Also affects: zfs-linux (Ubuntu Jammy)
   Importance: Undecided
       Status: New

** Also affects: zfs-linux (Ubuntu Lunar)
   Importance: Undecided
       Status: New

** Also affects: zfs-linux (Ubuntu Bionic)
   Importance: Undecided
       Status: New

** Also affects: zfs-linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: zfs-linux (Ubuntu Noble)
     Assignee: (unassigned) => Dimitri John Ledkov (xnox)

** Changed in: zfs-linux (Ubuntu Mantic)
     Assignee: (unassigned) => Dimitri John Ledkov (xnox)

** Changed in: zfs-linux (Ubuntu Lunar)
     Assignee: (unassigned) => Dimitri John Ledkov (xnox)

** Changed in: zfs-linux (Ubuntu Jammy)
     Assignee: (unassigned) => Dimitri John Ledkov (xnox)

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https://bugs.launchpad.net/bugs/2044657

Title:
  zfs block cloning file system corruption

Status in zfs-linux package in Ubuntu:
  Confirmed
Status in zfs-linux source package in Xenial:
  New
Status in zfs-linux source package in Bionic:
  New
Status in zfs-linux source package in Focal:
  New
Status in zfs-linux source package in Jammy:
  New
Status in zfs-linux source package in Lunar:
  New
Status in zfs-linux source package in Mantic:
  New
Status in zfs-linux source package in Noble:
  Confirmed

Bug description:
  OpenZFS 2.2 reportedly has a bug where block cloning might lead to
  file system corruption and data loss. This was fixed in OpenZFS 2.2.1.

  Original bug report: https://github.com/openzfs/zfs/issues/15526

  and 2.2.1 release notes:
  https://github.com/openzfs/zfs/releases/tag/zfs-2.2.1

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