Re: [PATCH net 1/2] net: dsa: realtek: fix out-of-bounds access

From: Jakub Kicinski
Date: Fri Mar 17 2023 - 00:07:48 EST


On Wed, 15 Mar 2023 14:09:15 +0100 Ahmad Fatoum wrote:
> - priv = devm_kzalloc(&mdiodev->dev, sizeof(*priv), GFP_KERNEL);
> + priv = devm_kzalloc(&mdiodev->dev, sizeof(*priv) + var->chip_data_sz, GFP_KERNEL);

size_add() ?
Otherwise some static checker is going to soon send us a patch saying
this can overflow. Let's save ourselves the hassle.