3.13.11-ckt31 -stable review patch. If anyone has any objections, please let me know. ------------------ From: =?UTF-8?q?Michal=20Kube=C4=8Dek?= <mkubecek@xxxxxxx> commit ebac62fe3d24c0ce22dd83afa7b07d1a2aaef44d upstream. Both tunnel6_protocol and tunnel46_protocol share the same error handler, tunnel6_err(), which traverses through tunnel6_handlers list. For ipip6 tunnels, we need to traverse tunnel46_handlers as we do e.g. in tunnel46_rcv(). Current code can generate an ICMPv6 error message with an IPv4 packet embedded in it. Fixes: 73d605d1abbd ("[IPSEC]: changing API of xfrm6_tunnel_register") Signed-off-by: Michal Kubecek <mkubecek@xxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx> --- net/ipv6/tunnel6.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/net/ipv6/tunnel6.c b/net/ipv6/tunnel6.c index 4b0f50d..ebcbb3c 100644 --- a/net/ipv6/tunnel6.c +++ b/net/ipv6/tunnel6.c @@ -147,6 +147,16 @@ static void tunnel6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, break; } +static void tunnel46_err(struct sk_buff *skb, struct inet6_skb_parm *opt, + u8 type, u8 code, int offset, __be32 info) +{ + struct xfrm6_tunnel *handler; + + for_each_tunnel_rcu(tunnel46_handlers, handler) + if (!handler->err_handler(skb, opt, type, code, offset, info)) + break; +} + static const struct inet6_protocol tunnel6_protocol = { .handler = tunnel6_rcv, .err_handler = tunnel6_err, @@ -155,7 +165,7 @@ static const struct inet6_protocol tunnel6_protocol = { static const struct inet6_protocol tunnel46_protocol = { .handler = tunnel46_rcv, - .err_handler = tunnel6_err, + .err_handler = tunnel46_err, .flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL, }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html