From 98d068ab52b4b11d403995ed14154660797e7136 Mon Sep 17 00:00:00 2001 From: hayeswang Date: Tue, 14 Mar 2017 14:15:20 +0800 Subject: 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: [] r8152_poll+0xe1e/0x1210 [r8152] PGD 0 Oops: 0002 [#1] SMP Signed-off-by: Hayes Wang Signed-off-by: David S. Miller --- drivers/net/usb/r8152.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 986243c932cc..bb3eedd07fbe 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -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); -- cgit v1.2.3-59-g8ed1b