Commit cb97d9a3 authored May 17, 2015 by Martin Townsend Committed by Marcel Holtmann May 19, 2015

mac802154: fakelb: Fix potential NULL pointer dereference.



fakelb_hw_deliver creates a copy of the skb's header which can
potentially return NULL so we now check for this before actually
delivering to the 802.15.4 MAC layer.

Signed-off-by: Martin Townsend <martin.townsend@xsilon.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

parent 0e665457

drivers/net/ieee802154/fakelb.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -69,6 +69,7 @@ fakelb_hw_deliver(struct fakelb_dev_priv priv, struct sk_buff skb)
		spin_lock(&priv->lock);
		if (priv->working) {
		newskb = pskb_copy(skb, GFP_ATOMIC);
		if (newskb)
		ieee802154_rx_irqsafe(priv->hw, newskb, 0xcc);
		}
		spin_unlock(&priv->lock);