From: patchwork-bot+netdevbpf@kernel.org
To: Gwangun Jung <exsociety@gmail.com>
Cc: pabeni@redhat.com, jhs@mojatatu.com, netdev@vger.kernel.org
Subject: Re: [PATCH net v3] net: sched: sch_qfq: prevent slab-out-of-bounds in qfq_activate_agg
Date: Fri, 14 Apr 2023 10:00:17 +0000 [thread overview]
Message-ID: <168146641747.17210.6250104828316736381.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <ZDfbCsDa6oLKzsed@pr0lnx>
Hello:
This patch was applied to netdev/net.git (main)
by David S. Miller <davem@davemloft.net>:
On Thu, 13 Apr 2023 19:35:54 +0900 you wrote:
> If the TCA_QFQ_LMAX value is not offered through nlattr, lmax is determined by the MTU value of the network device.
> The MTU of the loopback device can be set up to 2^31-1.
> As a result, it is possible to have an lmax value that exceeds QFQ_MIN_LMAX.
>
> Due to the invalid lmax value, an index is generated that exceeds the QFQ_MAX_INDEX(=24) value, causing out-of-bounds read/write errors.
>
> The following reports a oob access:
>
> [...]
Here is the summary with links:
- [net,v3] net: sched: sch_qfq: prevent slab-out-of-bounds in qfq_activate_agg
https://git.kernel.org/netdev/net/c/3037933448f6
You are awesome, thank you!
--
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prev parent reply other threads:[~2023-04-14 10:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-13 10:35 [PATCH net v3] net: sched: sch_qfq: prevent slab-out-of-bounds in qfq_activate_agg Gwangun Jung
2023-04-13 13:36 ` Jamal Hadi Salim
2023-04-14 10:00 ` patchwork-bot+netdevbpf [this message]
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