From: patchwork-bot+netdevbpf@kernel.org
To: Ruitong Liu <cnitlrt@gmail.com>
Cc: netdev@vger.kernel.org, jhs@mojatatu.com,
xiyou.wangcong@gmail.com, jiri@resnulli.us, davem@davemloft.net,
edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
horms@kernel.org, linux-kernel@vger.kernel.org,
stable@vger.kernel.org, L0x1c3r@gmail.com
Subject: Re: [PATCH v3] net/sched: act_skbedit: fix divide-by-zero in tcf_skbedit_hash()
Date: Wed, 18 Feb 2026 01:40:05 +0000 [thread overview]
Message-ID: <177137880508.770724.8992862496888446687.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260213175948.1505257-1-cnitlrt@gmail.com>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Sat, 14 Feb 2026 01:59:48 +0800 you wrote:
> Commit 38a6f0865796 ("net: sched: support hash selecting tx queue")
> added SKBEDIT_F_TXQ_SKBHASH support. The inclusive range size is
> computed as:
>
> mapping_mod = queue_mapping_max - queue_mapping + 1;
>
> The range size can be 65536 when the requested range covers all possible
> u16 queue IDs (e.g. queue_mapping=0 and queue_mapping_max=U16_MAX).
> That value cannot be represented in a u16 and previously wrapped to 0,
> so tcf_skbedit_hash() could trigger a divide-by-zero:
>
> [...]
Here is the summary with links:
- [v3] net/sched: act_skbedit: fix divide-by-zero in tcf_skbedit_hash()
https://git.kernel.org/netdev/net/c/be054cc66f73
You are awesome, thank you!
--
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prev parent reply other threads:[~2026-02-18 1:40 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-11 18:48 [PATCH] net/sched: act_skbedit: fix divide-by-zero in tcf_skbedit_hash() Ruitong Liu
2026-02-11 19:07 ` Eric Dumazet
2026-02-11 19:43 ` [PATCH v2] " Ruitong Liu
2026-02-13 2:08 ` Jakub Kicinski
2026-02-13 3:29 ` RUITONG LIU
2026-02-13 16:24 ` Jakub Kicinski
2026-02-13 17:59 ` [PATCH v3] " Ruitong Liu
2026-02-18 1:29 ` Jakub Kicinski
2026-02-18 1:40 ` patchwork-bot+netdevbpf [this message]
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