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Message-Id: <c72c1e886766c2be276e765fc444c23d2ee1543e.1397812482.git.jslaby@suse.cz> Date: Fri, 18 Apr 2014 11:22:20 +0200 From: Jiri Slaby <jslaby@...e.cz> To: stable@...r.kernel.org Cc: linux-kernel@...r.kernel.org, David Stevens <dlstevens@...ibm.com>, "David S. Miller" <davem@...emloft.net>, Jiri Slaby <jslaby@...e.cz> Subject: [PATCH 3.12 47/72] vxlan: fix potential NULL dereference in arp_reduce() From: David Stevens <dlstevens@...ibm.com> 3.12-stable review patch. If anyone has any objections, please let me know. =============== [ 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: Jiri Slaby <jslaby@...e.cz> --- drivers/net/vxlan.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 32c45c3d820d..020fe03f37c0 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -1212,6 +1212,9 @@ 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; -- 1.9.2 -- 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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