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Date: Tue, 22 Apr 2014 13:12:29 -0700 From: Kamal Mostafa <kamal@...onical.com> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, kernel-team@...ts.ubuntu.com Cc: David L Stevens <dlstevens@...ibm.com>, "David S. Miller" <davem@...emloft.net>, Kamal Mostafa <kamal@...onical.com> Subject: [PATCH 3.8 011/133] vxlan: fix potential NULL dereference in arp_reduce() 3.8.13.22 -stable review patch. If anyone has any objections, please let me know. ------------------ From: David Stevens <dlstevens@...ibm.com> [ 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@...ibm.com> Acked-by: Cong Wang <cwang@...pensource.com> Signed-off-by: David S. Miller <davem@...emloft.net> Signed-off-by: Kamal Mostafa <kamal@...onical.com> --- drivers/net/vxlan.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index cb6f529..dedad38 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -724,6 +724,9 @@ 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; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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