From: Richard Alpe <richard.alpe@ericsson.com>
Date: Mon, 14 Mar 2016 08:43:52 +0000 (+0100)
Subject: tipc: make sure IPv6 header fits in skb headroom
X-Git-Tag: v4.6-rc1~91^2~59
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9bd160bfa27fa41927dbbce7ee0ea779700e09ef;p=karo-tx-linux.git

tipc: make sure IPv6 header fits in skb headroom

Expand headroom further in order to be able to fit the larger IPv6
header. Prior to this patch this caused a skb under panic for certain
tipc packets when using IPv6 UDP bearer(s).

Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c
index c94f9a15e2cd..c9cf2be3674a 100644
--- a/net/tipc/udp_media.c
+++ b/net/tipc/udp_media.c
@@ -53,7 +53,7 @@
 /* IANA assigned UDP port */
 #define UDP_PORT_DEFAULT	6118
 
-#define UDP_MIN_HEADROOM        28
+#define UDP_MIN_HEADROOM        48
 
 /**
  * struct udp_media_addr - IP/UDP addressing information