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| author | David Stevens <dlstevens@us.ibm.com> | 2014-03-18 12:32:29 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-14 06:47:20 -0700 |
| commit | e1ef50212d122b0e775fb234b4c1523d52859acb (patch) | |
| tree | fb02d2f1d20eff98ba36e25e2241b443b3376845 | |
| parent | 7e2c8e661df7e27d6045822f29cf07e346053d6d (diff) | |
| download | linux-e1ef50212d122b0e775fb234b4c1523d52859acb.tar.gz linux-e1ef50212d122b0e775fb234b4c1523d52859acb.tar.bz2 linux-e1ef50212d122b0e775fb234b4c1523d52859acb.zip | |
vxlan: fix potential NULL dereference in arp_reduce()
[ Upstream commit 7346135dcd3f9b57f30a5512094848c678d7143e ]
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 02479739eaa0..e15b255ecaf1 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -1208,6 +1208,9 @@ 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; |