From: patchwork-bot+netdevbpf@kernel.org
To: Eric Dumazet <edumazet@google.com>
Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com,
pablo@netfilter.org, fw@strlen.de, netdev@vger.kernel.org,
netfilter-devel@vger.kernel.org, coreteam@netfilter.org,
eric.dumazet@gmail.com,
syzbot+76d4e3a055aec3b007ec@syzkaller.appspotmail.com
Subject: Re: [PATCH net] netfilter: nf_flow_table: drop existing skb dst before skb_dst_set_noref()
Date: Thu, 06 Aug 2026 00:20:08 +0000 [thread overview]
Message-ID: <178597560839.575509.1356511922096738928.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260804093328.1831847-1-edumazet@google.com>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Tue, 4 Aug 2026 09:33:28 +0000 you wrote:
> Incoming skbs passing through netfilter flowtable offload hooks (or XFRM
> offload path) might already carry a ref-counted dst_entry assigned during
> earlier RX or routing steps.
>
> Calling skb_dst_set_noref() when skb already holds a ref-counted dst
> overwrites skb->_skb_refdst, leaking the previous dst_entry reference
> count and triggering a DEBUG_NET_WARN_ON_ONCE assertion in
> skb_dst_check_unset():
>
> [...]
Here is the summary with links:
- [net] netfilter: nf_flow_table: drop existing skb dst before skb_dst_set_noref()
https://git.kernel.org/netdev/net/c/8aecf0bbcc72
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
prev parent reply other threads:[~2026-08-06 0:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-04 9:33 [PATCH net] netfilter: nf_flow_table: drop existing skb dst before skb_dst_set_noref() Eric Dumazet
2026-08-04 10:20 ` Pablo Neira Ayuso
2026-08-06 0:20 ` patchwork-bot+netdevbpf [this message]
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