CVE-2026-74369

In the Linux kernel, the following vulnerability has been resolved:

liveupdate: fix u-a-f in luo_file_unpreserve_files() and luo_file_finish()

In luo_file_unpreserve_files() and luo_file_finish(), reorder

module_put() and xa_erase() to ensure the file handler module remains

pinned while its operations are being accessed.

Specifically, luo_get_id() dereferences fh->ops->get_id, so the module

reference must be held until after xa_erase() (which calls luo_get_id)

completes.

For luo_file_finish(), this requires moving the module_put() call out of

the luo_file_finish_one() helper and into the main loop of

luo_file_finish() itself.