Subject: Re: [PATCH 6.6.y] ipv4: start using dst_dev_rcu()

From: Sasha Levin <[email-masked]>
Date: Wed, 3 Jun 2026 11:13:55 -0400

> [PATCH 6.6.y] ipv4: start using dst_dev_rcu()
> [ Upstream commit 6ad8de3cefdb6ffa6708b21c567df0dbf82c43a8 ]
> [ Minor modifications made to adapt current code. ]

Thanks for the backport. I think as proposed this introduces a bug: in 6.6.y
the predecessor a74fc62eec155c (which adds dst_dev_rcu()) is missing, so
skb_dst_dev_rcu() / dst_dev_rcu() ends up being called outside an RCU read-side
section here.

-- 
Thanks,
Sasha