Re: [net PATCH] net: phy: qcom: at803x: fix kernel panic with at8031_probe

[Andrew Lunn]

On Mon, Mar 25, 2024 at 08:06:19PM +0100, Christian Marangi wrote:
> On reworking and splitting the at803x driver, in splitting function of
> at803x PHYs it was added a NULL dereference bug where priv is referenced
> before it's actually allocated and then is tried to write to for the
> is_1000basex and is_fiber variables in the case of at8031, writing on
> the wrong address.
> 
> Fix this by correctly setting priv local variable only after
> at803x_probe is called and actually allocates priv in the phydev struct.
> 
> Reported-by: William Wortel <wwortel@xxxxxxxxxxxxxx>
> Cc: <stable@xxxxxxxxxxxxxxx>
> Fixes: 25d2ba94005f ("net: phy: at803x: move specific at8031 probe mode check to dedicated probe")
> Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx>

Reviewed-by: Andrew Lunn <andrew@xxxxxxx>

    Andrew