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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-08-27 15:06:01 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-08-27 15:06:01 -0700
commit28d9aa613daa65b295a099a8433df97de1c56a2f (patch)
tree8e7bf451f3390b926787d410c8d5df0454cbf16b /net/8021q/vlan_dev.c
parentd243769d3f83b318813a04a9592bb7cfedc6c280 (diff)
parent10e2ff1c39e6d829379c7c5bb8f1c8f512f257c8 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [NET]: Mark Paul Moore as maintainer of labelled networking. [VLAN/BRIDGE]: Fix "skb_pull_rcsum - Fatal exception in interrupt" [ISDN]: Get rid of some pointless allocation casts in common and bsd comp. [NET]: Avoid pointless allocation casts in BSD compression module [IRDA]: Do not do pointless kmalloc return value cast in KingSun driver [NET]: Fix crash in dev_mc_sync()/dev_mc_unsync() [PPPOL2TP]: Fix endianness annotations. [IOAT]: ioatdma needs to to play nice in a multi-dma-client world [SLIP]: trivial sparse warning fix [EQL]: sparse warning fix [NET]: is_power_of_2 in net/core/neighbour.c [TCP]: Describe tcp_init_cwnd() thoroughly in a comment. [NET]: Fix IP_ADD/DROP_MEMBERSHIP to handle only connectionless [KBUILD]: Sanitize tc_ematch headers. [IPSEC] AH4: Update IPv4 options handling to conform to RFC 4302.
Diffstat (limited to 'net/8021q/vlan_dev.c')
-rw-r--r--net/8021q/vlan_dev.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 4bab322c9f8..328759c32d6 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);