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authorBen Hutchings <ben@decadent.org.uk>2016-04-21 00:23:08 +0200
committerDavid S. Miller <davem@davemloft.net>2016-04-21 21:12:23 +0200
commitf43bfaeddc79effbf3d0fcb53ca477cca66f3db8 (patch)
treef554d69becc4963d409eb153ababd1c89c5d255c /drivers/net/ethernet/atheros
parentMerge branch 'mlx4-fixes' (diff)
downloadlinux-f43bfaeddc79effbf3d0fcb53ca477cca66f3db8.tar.xz
linux-f43bfaeddc79effbf3d0fcb53ca477cca66f3db8.zip
atl2: Disable unimplemented scatter/gather feature
atl2 includes NETIF_F_SG in hw_features even though it has no support for non-linear skbs. This bug was originally harmless since the driver does not claim to implement checksum offload and that used to be a requirement for SG. Now that SG and checksum offload are independent features, if you explicitly enable SG *and* use one of the rare protocols that can use SG without checkusm offload, this potentially leaks sensitive information (before you notice that it just isn't working). Therefore this obscure bug has been designated CVE-2016-2117. Reported-by: Justin Yackoski <jyackoski@crypto-nite.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Fixes: ec5f06156423 ("net: Kill link between CSUM and SG features.") Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/atheros')
-rw-r--r--drivers/net/ethernet/atheros/atlx/atl2.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/atheros/atlx/atl2.c b/drivers/net/ethernet/atheros/atlx/atl2.c
index 8f76f4558a88..2ff465848b65 100644
--- a/drivers/net/ethernet/atheros/atlx/atl2.c
+++ b/drivers/net/ethernet/atheros/atlx/atl2.c
@@ -1412,7 +1412,7 @@ static int atl2_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
err = -EIO;
- netdev->hw_features = NETIF_F_SG | NETIF_F_HW_VLAN_CTAG_RX;
+ netdev->hw_features = NETIF_F_HW_VLAN_CTAG_RX;
netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX);
/* Init PHY as early as possible due to power saving issue */