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| author |   David Stevens <dlstevens@us.ibm.com> | 2014-03-18 12:32:29 -0400 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-03-18 16:09:34 -0400 |
| commit | 7346135dcd3f9b57f30a5512094848c678d7143e (patch) | |
| tree | cf35ba8995ebf569b57b15056f76eb20c1b4ad12 /drivers/net/vxlan.c | |
| parent | Merge branch 'cnic-net' (diff) | |
| download | linux-dev-7346135dcd3f9b57f30a5512094848c678d7143e.tar.xz linux-dev-7346135dcd3f9b57f30a5512094848c678d7143e.zip | |
vxlan: fix potential NULL dereference in arp_reduce()
This patch fixes a NULL pointer dereference in the event of an
skb allocation failure in arp_reduce().
Signed-Off-By: David L Stevens <dlstevens@us.ibm.com>
Acked-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/vxlan.c')
| -rw-r--r-- | drivers/net/vxlan.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index b0f705c2378f..a7eb3f28db6c 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -1318,6 +1318,9 @@ static int arp_reduce(struct net_device *dev, struct sk_buff *skb) neigh_release(n); + if (reply == NULL) + goto out; + skb_reset_mac_header(reply); __skb_pull(reply, skb_network_offset(reply)); reply->ip_summed = CHECKSUM_UNNECESSARY; |