On Wed, Sep 16, 2020 at 08:43:09PM -0700, Florian Fainelli wrote:
> If we have unbound the PHY driver prior to calling phy_detach() (often
> via phy_disconnect()) then we can cause a NULL pointer de-reference
> accessing the driver owner member. The steps to reproduce are:
>
> echo unimac-mdio-0:01 > /sys/class/net/eth0/phydev/driver/unbind
> ip link set eth0 down
>
> Fixes: cafe8df8b9bc ("net: phy: Fix lack of reference count on PHY driver")
> Signed-off-by: Florian Fainelli <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Andrew
