linux-kernel - Re: [PATCH] net: qcom/emac: fix UAF in emac

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Date:   Sat, 10 Jul 2021 00:02:26 -0500
From:   Timur Tabi <timur@...nel.org>
To:     Pavel Skripkin <paskripkin@...il.com>
Cc:     timur@...nel.org, David Miller <davem@...emloft.net>,
        kuba@...nel.org, netdev <netdev@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] net: qcom/emac: fix UAF in emac_remove

On Fri, Jul 9, 2021 at 9:24 AM Pavel Skripkin <paskripkin@...il.com> wrote:
>
> adpt is netdev private data and it cannot be
> used after free_netdev() call. Using adpt after free_netdev()
> can cause UAF bug. Fix it by moving free_netdev() at the end of the
> function.

Please spell out what "UAF" means, thanks.  If you fix that, then

Acked-by: Timur Tabi <timur@...nel.org>

Thanks.