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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2008-07-19 23:09:43 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2008-07-19 23:09:43 +0000
commit15333144ce2b95acca047cea3ba53a5ddab1d5a0 (patch)
treeb5837a5f747181c9a2df05ffc39fa17bf1f14dc1 /target/linux/generic-2.6/files
parentf85a5739c0799ee9caa934deab1d9868ad4ca2e4 (diff)
add extra safety for the packet mangling in the mvswitch driver
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11880 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic-2.6/files')
-rw-r--r--target/linux/generic-2.6/files/drivers/net/phy/mvswitch.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/target/linux/generic-2.6/files/drivers/net/phy/mvswitch.c b/target/linux/generic-2.6/files/drivers/net/phy/mvswitch.c
index be9e6afd2..8eae439f7 100644
--- a/target/linux/generic-2.6/files/drivers/net/phy/mvswitch.c
+++ b/target/linux/generic-2.6/files/drivers/net/phy/mvswitch.c
@@ -78,7 +78,7 @@ mvswitch_mangle_tx(struct sk_buff *skb, struct net_device *dev)
if (__vlan_hwaccel_get_tag(skb, &vid))
goto error;
- if ((skb->len <= 62) || (skb_headroom(skb) < MV_HEADER_SIZE)) {
+ if (skb_cloned(skb) || (skb->len <= 62) || (skb_headroom(skb) < MV_HEADER_SIZE)) {
if (pskb_expand_head(skb, MV_HEADER_SIZE, 0, GFP_ATOMIC))
goto error_expand;
if (skb->len < 62)