From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A76D72356C6 for ; Wed, 14 Jan 2026 03:43:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768362221; cv=none; b=WFBuOpUtkSxyp5kmD57GcZdu2B6YgEJeSRRnE5sWWjbm51/3BOZhmFP8YAD4p7Lc3jFuag2yFQLsLa6ovWRYdEwjNNxHczL4eEJAAWXS/7pKXcxHdewHG9WnciycfKhR+ZfyBLaM44hHRZavHLJ1pMAHs/zCds+mir4AUQzeLRU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768362221; c=relaxed/simple; bh=bsX6P7h5mlkiKtIPh2WDj8gqWgoDrh7JW1H2JR+fQYg=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=HCcqzcWwJ42uNZlBVebFA+z47U0MqTrMS7cvY2yQBwSlL4iDGbYOlQWX9ly6V184iDkEgu0y01owj1LOuDaf1KeuXSjSwrW/PvvJ0Xf+vCRQN3vEwGdNXqIvyj71a5/afEbgwAIMVnHaXBNS2i0HK6r8VxuTHZNs9MJ5Abhroxs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TPY2DTgE; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="TPY2DTgE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 27BCCC4CEF7; Wed, 14 Jan 2026 03:43:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768362221; bh=bsX6P7h5mlkiKtIPh2WDj8gqWgoDrh7JW1H2JR+fQYg=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=TPY2DTgEoiLPuVnRXqihI5Usc3AjNs/w7Wj62CxDv86fQ1+MSAnlZNvaZV1E/CB15 P+Ux+YZ2Jn18acTTWyI2iDHlPoHc9ZaTJ/9lB1B6dwWKkxdWqUVu8b243ImM1FQF97 H61V9+nSdBOhVLsbUEMgtWEX+C+Xrh5yMjyDu9hzwxbDqmDBmqMN0j5ExvigC1rKj4 ugJdka1qc4uGm/tIrUDuPA2WRPAZM5+PxD9pupwkdh1zZtgGGvXYA65oFEQI/oHk22 Y0fV3gi8DBM0JMT4nPDQH77pi/d6D0Gihvf0/xa4VlfqGaSEBsN9QyRDCOgWRViVt8 Al/BK7KBPb8ng== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 789553808200; Wed, 14 Jan 2026 03:40:15 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net] net/sched: sch_qfq: do not free existing class in qfq_change_class() From: patchwork-bot+netdevbpf@kernel.org Message-Id: <176836201401.2575016.13444177808892506620.git-patchwork-notify@kernel.org> Date: Wed, 14 Jan 2026 03:40:14 +0000 References: <20260112175656.17605-1-edumazet@google.com> In-Reply-To: <20260112175656.17605-1-edumazet@google.com> To: Eric Dumazet Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, jhs@mojatatu.com, xiyou.wangcong@gmail.com, jiri@resnulli.us, netdev@vger.kernel.org, eric.dumazet@gmail.com, syzbot+07f3f38f723c335f106d@syzkaller.appspotmail.com Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Mon, 12 Jan 2026 17:56:56 +0000 you wrote: > Fixes qfq_change_class() error case. > > cl->qdisc and cl should only be freed if a new class and qdisc > were allocated, or we risk various UAF. > > Fixes: 462dbc9101ac ("pkt_sched: QFQ Plus: fair-queueing service at DRR cost") > Reported-by: syzbot+07f3f38f723c335f106d@syzkaller.appspotmail.com > Closes: https://lore.kernel.org/netdev/6965351d.050a0220.eaf7.00c5.GAE@google.com/T/#u > Signed-off-by: Eric Dumazet > > [...] Here is the summary with links: - [net] net/sched: sch_qfq: do not free existing class in qfq_change_class() https://git.kernel.org/netdev/net/c/3879cffd9d07 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html