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Message-Id: <1565813771-8967-1-git-send-email-wenwen@cs.uga.edu>
Date: Wed, 14 Aug 2019 15:16:11 -0500
From: Wenwen Wang <wenwen@...uga.edu>
To: Wenwen Wang <wenwen@...uga.edu>
Cc: "K. Y. Srinivasan" <kys@...rosoft.com>,
Haiyang Zhang <haiyangz@...rosoft.com>,
Stephen Hemminger <sthemmin@...rosoft.com>,
Sasha Levin <sashal@...nel.org>,
"David S. Miller" <davem@...emloft.net>,
linux-hyperv@...r.kernel.org (open list:Hyper-V CORE AND DRIVERS),
netdev@...r.kernel.org (open list:NETWORKING DRIVERS),
linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] hv_netvsc: Fix a memory leak bug
In rndis_filter_device_add(), 'rndis_device' is allocated through kzalloc()
by invoking get_rndis_device(). In the following execution, if an error
occurs, the execution will go to the 'err_dev_remv' label. However, the
allocated 'rndis_device' is not deallocated, leading to a memory leak bug.
Signed-off-by: Wenwen Wang <wenwen@...uga.edu>
---
drivers/net/hyperv/rndis_filter.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 317dbe9..ed35085 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -1420,6 +1420,7 @@ struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
err_dev_remv:
rndis_filter_device_remove(dev, net_device);
+ kfree(rndis_device);
return ERR_PTR(ret);
}
--
2.7.4
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