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From: patchwork-bot+netdevbpf@kernel.org
To: Xingquan Liu <b1n@b1n.io>
Cc: jhs@mojatatu.com, netdev@vger.kernel.org, jiri@resnulli.us,
	victor@mojatatu.com, chia-yu.chang@nokia-bell-labs.com,
	stable@vger.kernel.org
Subject: Re: [PATCH v3 1/2] net/sched: dualpi2: fix GSO backlog accounting
Date: Sun, 21 Jun 2026 22:20:16 +0000	[thread overview]
Message-ID: <178208041698.521994.2221997843607736583.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260619151447.223640-1-b1n@b1n.io>

Hello:

This series was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Fri, 19 Jun 2026 11:13:47 -0400 you wrote:
> When DualPI2 splits a GSO skb into N segments, it propagates N
> additional packets to its parent before returning NET_XMIT_SUCCESS.
> The parent then accounts for the original skb once more, leaving its
> qlen one larger than the number of packets actually queued.
> 
> With QFQ as the parent, after all real packets are dequeued, QFQ still
> has a non-zero qlen while its in-service aggregate has no active
> classes. qfq_choose_next_agg() returns NULL and qfq_dequeue() passes
> the result to qfq_peek_skb(), causing a NULL pointer dereference.
> 
> [...]

Here is the summary with links:
  - [v3,1/2] net/sched: dualpi2: fix GSO backlog accounting
    https://git.kernel.org/netdev/net/c/05ed733b65ab
  - [v3,2/2] selftests/tc-testing: Add DualPI2 GSO backlog accounting test
    https://git.kernel.org/netdev/net/c/54704b32b2ab

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html



      parent reply	other threads:[~2026-06-21 22:20 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-19 15:13 [PATCH v3 1/2] net/sched: dualpi2: fix GSO backlog accounting Xingquan Liu
2026-06-19 15:13 ` [PATCH v3 2/2] selftests/tc-testing: Add DualPI2 GSO backlog accounting test Xingquan Liu
2026-06-20 13:36   ` Jamal Hadi Salim
2026-06-20 15:53   ` Victor Nogueira
2026-06-20 13:35 ` [PATCH v3 1/2] net/sched: dualpi2: fix GSO backlog accounting Jamal Hadi Salim
2026-06-20 13:39 ` Jamal Hadi Salim
2026-06-20 15:54 ` Victor Nogueira
2026-06-21 22:20 ` patchwork-bot+netdevbpf [this message]

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