From 25d7a9aa3404bd264043903cb1b7bde114b224ce Mon Sep 17 00:00:00 2001 From: Pan Bian <bianpan2016@163.com> Date: Sun, 29 Oct 2017 21:57:22 +0800 Subject: [PATCH] net: lapbether: fix double free The function netdev_priv() returns the private data of the device. The memory to store the private data is allocated in alloc_netdev() and is released in netdev_free(). Calling kfree() on the return value of netdev_priv() after netdev_free() results in a double free bug. Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/wan/lapbether.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/wan/lapbether.c b/drivers/net/wan/lapbether.c index 63f749078a1f1..0e3f8ed84660e 100644 --- a/drivers/net/wan/lapbether.c +++ b/drivers/net/wan/lapbether.c @@ -346,7 +346,6 @@ out: fail: dev_put(dev); free_netdev(ndev); - kfree(lapbeth); goto out; } -- 2.39.5