Re: [PATCH v2] cgroup: Avoid iteration of dying tasks with zero refcount

[Michal Koutný]

On Mon, Sep 07, 2026 at 07:03:44PM +0200, Michal Koutný <mkoutny@xxxxxxxx> wrote:
> cgroup_task_release() is not synced via css_set_lock hence the race
> possibility. (I'm not 100% convinced about this LLM-assisted
> interleaving, multiple css_task_iter_next() calls may be involved with
> css_set_lock released.)

This paragraph should be editted out too because of

> Changes from v1 (https://lore.kernel.org/r/20260902161653.1051794-1-mkoutny@xxxxxxxx)
> - add css_set_lock release to sequence diagram

(Sorry for multi-messaging.)

Michal

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