| Date | Wed, 07 Dec 2011 08:11:56 -0800 | From | Greg KH <> | Subject | [054/104] bridge: correct IPv6 checksum after pull |
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3.1-stable review patch. If anyone has any objections, please let me know.
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From: stephen hemminger <shemminger@vyatta.com>
commit fa2da8cdae1dd64f78fc915ca1d1a4a93c71e7cb upstream.
Bridge multicast snooping of ICMPv6 would incorrectly report a checksum problem when used with Ethernet devices like sky2 that use CHECKSUM_COMPLETE. When bytes are removed from skb, the computed checksum needs to be adjusted.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Tested-by: Martin Volf <martin.volf.42@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- net/bridge/br_multicast.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -1501,6 +1501,8 @@ static int br_multicast_ipv6_rcv(struct __skb_pull(skb2, offset); skb_reset_transport_header(skb2); + skb_postpull_rcsum(skb2, skb_network_header(skb2), + skb_network_header_len(skb2)); icmp6_type = icmp6_hdr(skb2)->icmp6_type;
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