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net: lapbether: fix double free
authorPan Bian <bianpan2016@163.com>
Sun, 29 Oct 2017 13:57:22 +0000 (21:57 +0800)
committerDavid S. Miller <davem@davemloft.net>
Wed, 1 Nov 2017 03:11:02 +0000 (12:11 +0900)
commit7db8874abd9a134821881bb99301b3afbbe9b080
tree1698685a82202bda42e63aaa2f3ce863624af058tree | snapshot
parent04686ef299db5ff299bfc5a4504b189e46842078commit | diff
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 diff | blob | history
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