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Subject: Re: [PATCH] drivers/net/ethernet/neterion/vxge: Fix a use-after-free bug
 in vxge-main.c
From:   patchwork-bot+netdevbpf@kernel.org
Message-Id: <165563641313.16837.10425130041626423819.git-patchwork-notify@kernel.org>
Date:   Sun, 19 Jun 2022 11:00:13 +0000
References: <20220619141454.3881-1-Wentao_Liang_g@163.com>
In-Reply-To: <20220619141454.3881-1-Wentao_Liang_g@163.com>
To:     Wentao_Liang <Wentao_Liang_g@163.com>
Cc:     jdmason@kudzu.us, davem@davemloft.net, edumazet@google.com,
        kuba@kernel.org, pabeni@redhat.com, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org
Precedence: bulk

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <davem@davemloft.net>:

On Sun, 19 Jun 2022 22:14:54 +0800 you wrote:
> The pointer vdev points to a memory region adjacent to a net_device
> structure ndev, which is a field of hldev. At line 4740, the invocation
> to vxge_device_unregister unregisters device hldev, and it also releases
> the memory region pointed by vdev->bar0. At line 4743, the freed memory
> region is referenced (i.e., iounmap(vdev->bar0)), resulting in a
> use-after-free vulnerability. We can fix the bug by calling iounmap
> before vxge_device_unregister.
> 
> [...]

Here is the summary with links:
  - drivers/net/ethernet/neterion/vxge: Fix a use-after-free bug in vxge-main.c
    https://git.kernel.org/netdev/net/c/8fc74d18639a

You are awesome, thank you!
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