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| author | Guillaume Gaudonville <guillaume.gaudonville@6wind.com> | 2010-06-29 18:29:00 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-29 23:12:41 -0700 |
| commit | d3ead2413cb99d3e6265577b12537434e229d8c2 (patch) | |
| tree | 095cf623549694dd1944f6400d545d02c365a134 /drivers/net | |
| parent | 9f756f018a6d9f83556f972ce7fcd6870274efae (diff) | |
| download | linux-stable-d3ead2413cb99d3e6265577b12537434e229d8c2.tar.gz linux-stable-d3ead2413cb99d3e6265577b12537434e229d8c2.tar.bz2 linux-stable-d3ead2413cb99d3e6265577b12537434e229d8c2.zip | |
ixgbe: skip non IPv4 packets in ATR filter
In driver ixgbe, ixgbe_atr may cause crashes for non-ipv4 packets. Just
add a test to check skb->protocol. It may crash on short packets due
to ip_hdr() access.
Signed-off-by: Guillaume Gaudonville <guillaume.gaudonville@6wind.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_main.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 7ddd60e7d389..a0b33165b989 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -6024,7 +6024,6 @@ static void ixgbe_tx_queue(struct ixgbe_adapter *adapter, static void ixgbe_atr(struct ixgbe_adapter *adapter, struct sk_buff *skb, int queue, u32 tx_flags) { - /* Right now, we support IPv4 only */ struct ixgbe_atr_input atr_input; struct tcphdr *th; struct iphdr *iph = ip_hdr(skb); @@ -6033,6 +6032,9 @@ static void ixgbe_atr(struct ixgbe_adapter *adapter, struct sk_buff *skb, u32 src_ipv4_addr, dst_ipv4_addr; u8 l4type = 0; + /* Right now, we support IPv4 only */ + if (skb->protocol != htons(ETH_P_IP)) + return; /* check if we're UDP or TCP */ if (iph->protocol == IPPROTO_TCP) { th = tcp_hdr(skb); |