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| author |   Martin Townsend <mtownsend1973@gmail.com> | 2015-05-17 21:44:54 +0200 |
|---|---|---|
| committer |   Marcel Holtmann <marcel@holtmann.org> | 2015-05-19 11:44:44 +0200 |
| commit | cb97d9a3eb0be1e33db5535955e6629e800f3f0e (patch) | |
| tree | c7e2d8dc1780050d86d821960f22cdd69a6af4ec /drivers/net/ieee802154/fakelb.c | |
| parent | nl802154: add support for dump phy capabilities (diff) | |
| download | linux-dev-cb97d9a3eb0be1e33db5535955e6629e800f3f0e.tar.xz linux-dev-cb97d9a3eb0be1e33db5535955e6629e800f3f0e.zip | |
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>
Diffstat (limited to 'drivers/net/ieee802154/fakelb.c')
| -rw-r--r-- | drivers/net/ieee802154/fakelb.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ieee802154/fakelb.c b/drivers/net/ieee802154/fakelb.c index 91bbf030a443..230f7da02165 100644 --- a/drivers/net/ieee802154/fakelb.c +++ b/drivers/net/ieee802154/fakelb.c @@ -69,7 +69,8 @@ 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); - ieee802154_rx_irqsafe(priv->hw, newskb, 0xcc); + if (newskb) + ieee802154_rx_irqsafe(priv->hw, newskb, 0xcc); } spin_unlock(&priv->lock); } |