[PATCH v2 3/3] net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all()

[Simon Horman]

On Fri, Sep 08, 2023 at 02:19:50PM +0800, Hangyu Hua wrote:
> rule_locs is allocated in ethtool_get_rxnfc and the size is determined by
> rule_cnt from user space. So rule_cnt needs to be check before using
> rule_locs to avoid NULL pointer dereference.
> 
> Fixes: 7aab747e5563 ("net: ethernet: mediatek: add ethtool functions to configure RX flows of HW LRO")
> Signed-off-by: Hangyu Hua <hbh25y at gmail.com>

Reviewed-by: Simon Horman <horms at kernel.org>