A backport requires the fix commit a2187431c395 ("ext4: fix error message when rejecting the default hash"). and a prerequisite commit db9345d9e6f0 ("ext4: factor out ext4_hash_info_init()")
See the patch series: https://lore.kernel.org/all/20241118102050.16077-1-kovalev@altlinux.org/t/#u
-- Thanks, Vasiliy