Re: [PATCH linux-6.1.y linux-6.6.y linux-6.12.y 0/1] ndisc: backport ndisc_send_redirect() cleanup

[Sasha Levin]

On Mon, Aug 24, 2026 at 09:38:51PM +0800, Li Xiasong wrote:
> dbc3791e3b24 adds "if (!peer) goto release;" inside
> rcu_read_lock()/rcu_read_unlock() in ndisc_send_redirect(),
> which seems to leak the read lock on the NULL-peer path on
> these trees. This cleanup drops the pair (callers already hold
> rcu_read_lock()), so the leak would go away.

Correct, and confirmed here - ip6_forward() already wraps the call in
rcu_read_lock() on all three trees.

Queued for 6.12, 6.6 and 6.1, thanks.

-- 
Thanks,
Sasha