cgroup null pointer dereference

[hch]

On Fri, Apr 25, 2025 at 11:22:50AM -0400, Waiman Long wrote:
> The nvme-6.15-2025-04-10 branch used by Kmaljit includes some v6.15
> commits like the cgroup commit 093c8812de2d3 ("cgroup: rstat:
> Cleanup flushing functions and locking") but not its fix commit
> 7d6c63c31914 ("cgroup: rstat: call cgroup_rstat_updated_list with
> cgroup_rstat_lock"). That can cause system crash in some cases. That
> problem will be resolved if nvme is rebased on top of v6.15-rc1 or
> later as the fix commit will be included.

The nvme branches are always rebased on top of the current relevant block
branches, i.e. block-6.15 in thise case.  Everything else would create
merge issues.