netfilter 05/05: xt_sctp: sctp chunk mapping doesn't work

[Patrick McHardy <kaber@trash.net>]

commit 3c0994f8a7864e1d1de3cefbcf715bfde5b2a41a
Author: Qu Haoran <haoran.qu@6wind.com>
Date:   Mon Feb 9 15:35:43 2009 +0100

    netfilter: xt_sctp: sctp chunk mapping doesn't work
    
    When user tries to map all chunks given in argument, kernel
    works on a copy of the chunkmap, but at the end it doesn't
    check the copy, but the orginal one.
    
    Signed-off-by: Qu Haoran <haoran.qu@6wind.com>
    Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
    Signed-off-by: Patrick McHardy <kaber@trash.net>

diff --git a/net/netfilter/xt_sctp.c b/net/netfilter/xt_sctp.c
index e223cb4..a189ada 100644
--- a/net/netfilter/xt_sctp.c
+++ b/net/netfilter/xt_sctp.c
@@ -105,7 +105,7 @@ match_packet(const struct sk_buff *skb,
 
 	switch (chunk_match_type) {
 	case SCTP_CHUNK_MATCH_ALL:
-		return SCTP_CHUNKMAP_IS_CLEAR(info->chunkmap);
+		return SCTP_CHUNKMAP_IS_CLEAR(chunkmapcopy);
 	case SCTP_CHUNK_MATCH_ANY:
 		return false;
 	case SCTP_CHUNK_MATCH_ONLY: