From: patchwork-bot+netdevbpf@kernel.org
To: Heng Qi <hengqi@linux.alibaba.com>
Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, mst@redhat.com,
jasowang@redhat.com, pabeni@redhat.com, kuba@kernel.org,
john.fastabend@gmail.com, davem@davemloft.net,
daniel@iogearbox.net, ast@kernel.org, edumazet@google.com,
xuanzhuo@linux.alibaba.com
Subject: Re: [PATCH net-next v2] virtio-net: fix possible unsigned integer overflow
Date: Thu, 02 Feb 2023 06:20:16 +0000 [thread overview]
Message-ID: <167531881698.1809.4464102208743775598.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20230131085004.98687-1-hengqi@linux.alibaba.com>
Hello:
This patch was applied to netdev/net-next.git (master)
by Jakub Kicinski <kuba@kernel.org>:
On Tue, 31 Jan 2023 16:50:04 +0800 you wrote:
> When the single-buffer xdp is loaded and after xdp_linearize_page()
> is called, *num_buf becomes 0 and (*num_buf - 1) may overflow into
> a large integer in virtnet_build_xdp_buff_mrg(), resulting in
> unexpected packet dropping.
>
> Fixes: ef75cb51f139 ("virtio-net: build xdp_buff with multi buffers")
> Signed-off-by: Heng Qi <hengqi@linux.alibaba.com>
> Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
>
> [...]
Here is the summary with links:
- [net-next,v2] virtio-net: fix possible unsigned integer overflow
https://git.kernel.org/netdev/net-next/c/981f14d42a7f
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
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next prev parent reply other threads:[~2023-02-02 6:20 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-31 8:50 [PATCH net-next v2] virtio-net: fix possible unsigned integer overflow Heng Qi
2023-02-02 6:20 ` patchwork-bot+netdevbpf [this message]
2023-02-02 8:07 ` Michael S. Tsirkin
2023-02-02 8:14 ` Heng Qi
2023-02-02 8:16 ` Michael S. Tsirkin
2023-02-02 9:07 ` Heng Qi
2023-02-02 10:31 ` Michael S. Tsirkin
2023-02-02 10:55 ` Heng Qi
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