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| author | David Woodhouse <dwmw2@infradead.org> | 2007-10-13 14:43:54 +0100 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2007-10-13 14:43:54 +0100 |
| commit | b160292cc216a50fd0cd386b0bda2cd48352c73b (patch) | |
| tree | ef07cf98f91353ee4c9ec1e1ca7a2a5d9d4b538a /net/8021q/vlan_dev.c | |
| parent | b37bde147890c8fea8369a5a4e230dabdea4ebfb (diff) | |
| parent | bbf25010f1a6b761914430f5fca081ec8c7accd1 (diff) | |
| download | op-kernel-dev-b160292cc216a50fd0cd386b0bda2cd48352c73b.zip op-kernel-dev-b160292cc216a50fd0cd386b0bda2cd48352c73b.tar.gz | |
Merge Linux 2.6.23
Diffstat (limited to 'net/8021q/vlan_dev.c')
| -rw-r--r-- | net/8021q/vlan_dev.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index 4bab322..328759c 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -116,12 +116,22 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type* ptype, struct net_device *orig_dev) { unsigned char *rawp = NULL; - struct vlan_hdr *vhdr = (struct vlan_hdr *)(skb->data); + struct vlan_hdr *vhdr; unsigned short vid; struct net_device_stats *stats; unsigned short vlan_TCI; __be16 proto; + if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL) + return -1; + + if (unlikely(!pskb_may_pull(skb, VLAN_HLEN))) { + kfree_skb(skb); + return -1; + } + + vhdr = (struct vlan_hdr *)(skb->data); + /* vlan_TCI = ntohs(get_unaligned(&vhdr->h_vlan_TCI)); */ vlan_TCI = ntohs(vhdr->h_vlan_TCI); |
