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Subject: Re: [PATCH] ethernet/netronome/nfp: Fix a use after free in
 nfp_bpf_ctrl_msg_rx
From:   patchwork-bot+netdevbpf@kernel.org
Message-Id: <161706420894.10022.11354117385100184224.git-patchwork-notify@kernel.org>
Date:   Tue, 30 Mar 2021 00:30:08 +0000
References: <20210329115002.8557-1-lyl2019@mail.ustc.edu.cn>
In-Reply-To: <20210329115002.8557-1-lyl2019@mail.ustc.edu.cn>
To:     Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Cc:     kuba@kernel.org, simon.horman@netronome.com, davem@davemloft.net,
        ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
        kafai@fb.com, songliubraving@fb.com, yhs@fb.com,
        john.fastabend@gmail.com, kpsingh@kernel.org,
        netdev@vger.kernel.org, bpf@vger.kernel.org,
        oss-drivers@netronome.com, linux-kernel@vger.kernel.org
Precedence: bulk

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Mon, 29 Mar 2021 04:50:02 -0700 you wrote:
> In nfp_bpf_ctrl_msg_rx, if
> nfp_ccm_get_type(skb) == NFP_CCM_TYPE_BPF_BPF_EVENT is true, the skb
> will be freed. But the skb is still used by nfp_ccm_rx(&bpf->ccm, skb).
> 
> My patch adds a return when the skb was freed.
> 
> Fixes: bcf0cafab44fd ("nfp: split out common control message handling code")
> Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
> 
> [...]

Here is the summary with links:
  - ethernet/netronome/nfp: Fix a use after free in nfp_bpf_ctrl_msg_rx
    https://git.kernel.org/netdev/net/c/6e5a03bcba44

You are awesome, thank you!
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