3.6.11.2 stable review patch.
If anyone has any objections, please let me know.
------------------
From: Eric Dumazet <[email protected]>
[ Upstream commit 91c5746425aed8f7188a351f1224a26aa232e4b3 ]
Some network drivers use a non default hard_header_len
Transmitted skb should take into account dev->hard_header_len, or risk
crashes or expensive reallocations.
In the case of aoe, lets reserve MAX_HEADER bytes.
David reported a crash in defxx driver, solved by this patch.
Reported-by: David Oostdyk <[email protected]>
Tested-by: David Oostdyk <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Cc: Ed Cashin <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>
---
drivers/block/aoe/aoecmd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 887f68f..db30542 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -30,8 +30,9 @@ new_skb(ulong len)
{
struct sk_buff *skb;
- skb = alloc_skb(len, GFP_ATOMIC);
+ skb = alloc_skb(len + MAX_HEADER, GFP_ATOMIC);
if (skb) {
+ skb_reserve(skb, MAX_HEADER);
skb_reset_mac_header(skb);
skb_reset_network_header(skb);
skb->protocol = __constant_htons(ETH_P_AOE);
--
1.7.10.4