CVE-2024-38384

In the Linux kernel, the following vulnerability has been resolved:
blk-cgroup: fix list corruption from reorder of WRITE ->lqueued
__blkcg_rstat_flush() can be run anytime, especially when
blk_cgroup_bio_start is being executed. If WRITE of ->lqueued is
re-ordered with READ of ‘bisc->lnode.next’ in the loop of
__blkcg_rstat_flush(), next_bisc can be assigned with one stat instance
being added in blk_cgroup_bio_start(), then the local list in
__blkcg_rstat_flush() could be corrupted. Fix the issue by adding one
barrier.