Commit 1bb6e0cc authored by Pan Bian's avatar Pan Bian Committed by Greg Kroah-Hartman

net: hisilicon: remove unexpected free_netdev

[ Upstream commit c758940158bf29fe14e9d0f89d5848f227b48134 ]

The net device ndev is freed via free_netdev when failing to register
the device. The control flow then jumps to the error handling code
block. ndev is used and freed again. Resulting in a use-after-free bug.
Signed-off-by: 's avatarPan Bian <bianpan2016@163.com>
Signed-off-by: 's avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: 's avatarSasha Levin <sashal@kernel.org>
parent 992963c6
......@@ -922,10 +922,8 @@ static int hip04_mac_probe(struct platform_device *pdev)
}
ret = register_netdev(ndev);
if (ret) {
free_netdev(ndev);
if (ret)
goto alloc_fail;
}
return 0;
......
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