netdev - Re: [PATCH net v2] tcp: drop secpath at the same time as we currently drop dst

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Message-Id: 
 <174004082976.1211626.2598809142396901405.git-patchwork-notify@kernel.org>
Date: Thu, 20 Feb 2025 08:40:29 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Sabrina Dubroca <sd@...asysnail.net>
Cc: netdev@...r.kernel.org, kuba@...nel.org, edumazet@...gle.com,
 pabeni@...hat.com, ncardwell@...gle.com, kuniyu@...zon.com,
 dsahern@...nel.org, linux-security-module@...r.kernel.org,
 paul@...l-moore.com, xmu@...hat.com
Subject: Re: [PATCH net v2] tcp: drop secpath at the same time as we currently
 drop dst

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Mon, 17 Feb 2025 11:23:35 +0100 you wrote:
> Xiumei reported hitting the WARN in xfrm6_tunnel_net_exit while
> running tests that boil down to:
>  - create a pair of netns
>  - run a basic TCP test over ipcomp6
>  - delete the pair of netns
> 
> The xfrm_state found on spi_byaddr was not deleted at the time we
> delete the netns, because we still have a reference on it. This
> lingering reference comes from a secpath (which holds a ref on the
> xfrm_state), which is still attached to an skb. This skb is not
> leaked, it ends up on sk_receive_queue and then gets defer-free'd by
> skb_attempt_defer_free.
> 
> [...]

Here is the summary with links:
  - [net,v2] tcp: drop secpath at the same time as we currently drop dst
    https://git.kernel.org/netdev/net/c/9b6412e6979f

You are awesome, thank you!
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