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Subject[100/156] netfilter: xt_recent: fix regression in rules using a zero hit_count
2.6.33-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Patrick McHardy <kaber@trash.net>

commit ef1691504c83ba3eb636c0cfd3ed33f7a6d0b4ee upstream.

Commit 8ccb92ad (netfilter: xt_recent: fix false match) fixed supposedly
false matches in rules using a zero hit_count. As it turns out there is
nothing false about these matches and people are actually using entries
with a hit_count of zero to make rules dependant on addresses inserted
manually through /proc.

Since this slipped past the eyes of three reviewers, instead of
reverting the commit in question, this patch explicitly checks
for a hit_count of zero to make the intentions more clear.

Reported-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Tested-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
net/netfilter/xt_recent.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/netfilter/xt_recent.c
+++ b/net/netfilter/xt_recent.c
@@ -260,7 +260,7 @@ recent_mt(const struct sk_buff *skb, con
for (i = 0; i < e->nstamps; i++) {
if (info->seconds && time_after(time, e->stamps[i]))
continue;
- if (info->hit_count && ++hits >= info->hit_count) {
+ if (!info->hit_count || ++hits >= info->hit_count) {
ret = !ret;
break;
}



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