This bug was fixed in the package zfs-linux - 2.1.9-2ubuntu2
--------------- zfs-linux (2.1.9-2ubuntu2) mantic; urgency=medium
* Cherry-pick upstream fix to address FTBFS with v6.2.8+. LP: #2019450
-- Dimitri John Ledkov <email address hidden> Sat, 13 May 2023 00:49:15 +0100
This bug was fixed in the package zfs-linux - 2.1.9-2ubuntu2
---------------
zfs-linux (2.1.9-2ubuntu2) mantic; urgency=medium
* Cherry-pick upstream fix to address FTBFS with v6.2.8+. LP: #2019450
-- Dimitri John Ledkov <email address hidden> Sat, 13 May 2023 00:49:15 +0100