From: patchwork-bot+netdevbpf@kernel.org
To: Xiao Liang <shaw.leon@gmail.com>
Cc: willemdebruijn.kernel@gmail.com, jasowangio@gmail.com,
netdev@vger.kernel.org
Subject: Re: [PATCH net] tun: drop batched packets while the device is down
Date: Thu, 29 Oct 2026 16:30:12 +0000 [thread overview]
Message-ID: <179329141279.559085.15478130548672944710.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20261027101830.85327-1-shaw.leon@gmail.com>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Tue, 27 Oct 2026 18:18:27 +0800 you wrote:
> tun_sendmsg() handles TUN_MSG_PTR batches from vhost-net by calling
> tun_xdp_one() instead of tun_get_user(). But this path does not check
> IFF_UP, allowing packets from a guest to be injected into the host
> receive path while the device is administratively down.
>
> Check IFF_UP in tun_xdp_one() before running XDP or building an skb.
> Drop the packet when the device is down, matching tun_get_user().
>
> [...]
Here is the summary with links:
- [net] tun: drop batched packets while the device is down
https://git.kernel.org/netdev/net/c/8f44631ba02a
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
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prev parent reply other threads:[~2026-10-29 16:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-27 10:18 [PATCH net] tun: drop batched packets while the device is down Xiao Liang
2026-10-27 10:21 ` netdev-bot+sinfo
2026-10-27 14:13 ` Willem de Bruijn
2026-10-29 16:30 ` patchwork-bot+netdevbpf [this message]
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