linux-kernel - Re: [PATCH net v2] net: qcom/emac: Fix use after free bug in emac

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Message-ID: <20230320122259.6f6ddc81@kernel.org>
Date:   Mon, 20 Mar 2023 12:22:59 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     patchwork-bot+netdevbpf@...nel.org
Cc:     Zheng Wang <zyytlz.wz@....com>, timur@...nel.org,
        davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        hackerzheng666@...il.com, 1395428693sheep@...il.com,
        alex000young@...il.com
Subject: Re: [PATCH net v2] net: qcom/emac: Fix use after free bug in
 emac_remove due to  race condition

On Mon, 20 Mar 2023 09:20:17 +0000 patchwork-bot+netdevbpf@...nel.org
wrote:
> Here is the summary with links:
>   - [net,v2] net: qcom/emac: Fix use after free bug in emac_remove due to race condition
>     https://git.kernel.org/netdev/net/c/6b6bc5b8bd2d

Don't think this is correct FWIW, randomly shutting things down without
holding any locks and before unregister_netdev() is called has got to
be racy. Oh, eh.