linux-kernel - Re: [PATCH] net: dsa: lantiq_gswip: fix use after free in gswip

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Date:   Tue, 15 Feb 2022 13:14:33 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Alexey Khoroshilov <khoroshilov@...ras.ru>
Cc:     Vladimir Oltean <vladimir.oltean@....com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Hauke Mehrtens <hauke@...ke-m.de>,
        Vivien Didelot <vivien.didelot@...il.com>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, ldv-project@...uxtesting.org
Subject: Re: [PATCH] net: dsa: lantiq_gswip: fix use after free in
 gswip_remove()

On Tue, Feb 15, 2022 at 01:42:48PM +0300, Alexey Khoroshilov wrote:
> of_node_put(priv->ds->slave_mii_bus->dev.of_node) should be
> done before mdiobus_free(priv->ds->slave_mii_bus).
> 
> Signed-off-by: Alexey Khoroshilov <khoroshilov@...ras.ru>
> Fixes: 0d120dfb5d67 ("net: dsa: lantiq_gswip: don't use devres for mdiobus")

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew