3.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Florian Fainelli <f.fainelli@xxxxxxxxx>
[ Upstream commit 474ea9cafc459976827a477f2c30eaf6313cb7c1 ]
Packets shorter than ETH_ZLEN were not padded with zeroes, hence leaking
potentially sensitive information. This bug has been present since the
driver got accepted in commit 1c1008c793fa46703a2fee469f4235e1c7984333
("net: bcmgenet: add main driver file").
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/broadcom/genet/bcmgenet.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -1149,6 +1149,11 @@ static netdev_tx_t bcmgenet_xmit(struct
goto out;
}
+ if (skb_padto(skb, ETH_ZLEN)) {
+ ret = NETDEV_TX_OK;
+ goto out;
+ }
+
/* set the SKB transmit checksum */
if (priv->desc_64b_en) {
ret = bcmgenet_put_tx_csum(dev, skb);
--
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