From 88da008e5e2f9753726ea5a51ef2eb144e9de927 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Fri, 11 Nov 2022 09:20:44 +0000 Subject: [PATCH] net: mhi: Fix memory leak in mhi_net_dellink() [ Upstream commit f7c125bd79f50ec6094761090be81d02726ec6f4 ] MHI driver registers network device without setting the needs_free_netdev flag, and does NOT call free_netdev() when unregisters network device, which causes a memory leak. This patch calls free_netdev() to fix it since netdev_priv is used after unregister. Fixes: 13adac032982 ("net: mhi_net: Register wwan_ops for link creation") Signed-off-by: Wei Yongjun Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/mhi_net.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/mhi_net.c b/drivers/net/mhi_net.c index aaa628f..f84554a 100644 --- a/drivers/net/mhi_net.c +++ b/drivers/net/mhi_net.c @@ -343,6 +343,8 @@ static void mhi_net_dellink(struct mhi_device *mhi_dev, struct net_device *ndev) kfree_skb(mhi_netdev->skbagg_head); + free_netdev(ndev); + dev_set_drvdata(&mhi_dev->dev, NULL); } -- 2.7.4