This is a note to let you know that I've just added the patch titled netfilter: bridge: fix IPv6 packets not being bridged with CONFIG_IPV6=n to the 4.2-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: netfilter-bridge-fix-ipv6-packets-not-being-bridged-with-config_ipv6-n.patch and it can be found in the queue-4.2 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 18e1db67e93ed75d9dc0d34c8d783ccf10547c2b Mon Sep 17 00:00:00 2001 From: Bernhard Thaler <bernhard.thaler@xxxxxxxx> Date: Thu, 13 Aug 2015 08:58:15 +0200 Subject: netfilter: bridge: fix IPv6 packets not being bridged with CONFIG_IPV6=n From: Bernhard Thaler <bernhard.thaler@xxxxxxxx> commit 18e1db67e93ed75d9dc0d34c8d783ccf10547c2b upstream. 230ac490f7fba introduced a dependency to CONFIG_IPV6 which breaks bridging of IPv6 packets on a bridge with CONFIG_IPV6=n. Sysctl entry /proc/sys/net/bridge/bridge-nf-call-ip6tables defaults to 1, for this reason packets are handled by br_nf_pre_routing_ipv6(). When compiled with CONFIG_IPV6=n this function returns NF_DROP but should return NF_ACCEPT to let packets through. Change CONFIG_IPV6=n br_nf_pre_routing_ipv6() return value to NF_ACCEPT. Tested with a simple bridge with two interfaces and IPv6 packets trying to pass from host on left side to host on right side of the bridge. Fixes: 230ac490f7fba ("netfilter: bridge: split ipv6 code into separated file") Signed-off-by: Bernhard Thaler <bernhard.thaler@xxxxxxxx> Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- include/net/netfilter/br_netfilter.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/include/net/netfilter/br_netfilter.h +++ b/include/net/netfilter/br_netfilter.h @@ -59,7 +59,7 @@ static inline unsigned int br_nf_pre_routing_ipv6(const struct nf_hook_ops *ops, struct sk_buff *skb, const struct nf_hook_state *state) { - return NF_DROP; + return NF_ACCEPT; } #endif Patches currently in stable-queue which might be from bernhard.thaler@xxxxxxxx are queue-4.2/netfilter-bridge-fix-ipv6-packets-not-being-bridged-with-config_ipv6-n.patch -- 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