Commit 98d068ab authored Mar 14, 2017 by hayeswang Committed by David S. Miller Mar 21, 2017

r8152: fix the list rx_done may be used without initialization



The list rx_done would be initialized when the linking on occurs.
Therefore, if a napi is scheduled without any linking on before,
the following kernel panic would happen.

	BUG: unable to handle kernel NULL pointer dereference at 000000000000008
	IP: [<ffffffffc085efde>] r8152_poll+0xe1e/0x1210 [r8152]
	PGD 0
	Oops: 0002 [#1] SMP

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent db7f00b8

drivers/net/usb/r8152.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1362,6 +1362,7 @@ static int alloc_all_mem(struct r8152 *tp)
		spin_lock_init(&tp->rx_lock);
		spin_lock_init(&tp->tx_lock);
		INIT_LIST_HEAD(&tp->tx_free);
		INIT_LIST_HEAD(&tp->rx_done);
		skb_queue_head_init(&tp->tx_queue);
		skb_queue_head_init(&tp->rx_queue);

Admin message