On Fri, Sep 23, 2022 at 07:51:19PM +0800, Ming Lei wrote: > cgroup has to be one kernfs dir, otherwise kernel panic is caused, > especially cgroup id is provide from userspace. > > Reported-by: Marco Patalano <mpatalan@xxxxxxxxxx> > Fixes: 6b658c4863c1 ("scsi: cgroup: Add cgroup_get_from_id()") > Cc: Muneendra <muneendra.kumar@xxxxxxxxxxxx> > Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx> Applied to cgroup/for-6.0-fixes with the subject changed to "cgroup: cgroup_get_from_id() must check the looked-up kn is a directory" and stable cc'd. Thanks. -- tejun