From: Pavel Skripkin paskripkin@gmail.com
[ Upstream commit e4b8700e07a86e8eab6916aa5c5ba99042c34089 ]
priv is netdev private data, but it is used after free_netdev(). It can cause use-after-free when accessing priv pointer. So, fix it by moving free_netdev() after netif_napi_del() call.
Fixes: 0dd077093636 ("NET: Add ezchip ethernet driver") Signed-off-by: Pavel Skripkin paskripkin@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/ezchip/nps_enet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/ezchip/nps_enet.c b/drivers/net/ethernet/ezchip/nps_enet.c index 659f1ad37e96..fbadf08b7c5d 100644 --- a/drivers/net/ethernet/ezchip/nps_enet.c +++ b/drivers/net/ethernet/ezchip/nps_enet.c @@ -658,8 +658,8 @@ static s32 nps_enet_remove(struct platform_device *pdev) struct nps_enet_priv *priv = netdev_priv(ndev);
unregister_netdev(ndev); - free_netdev(ndev); netif_napi_del(&priv->napi); + free_netdev(ndev);
return 0; }