From d978e5daec544ec72b28bf72a30dc9ac3da23a35 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Mon, 17 Dec 2007 22:37:03 -0800 Subject: [PATCH 1/1] [NETFILTER]: ctnetlink: fix expectation timeout dumping When the timer is late its timeout might be before the current time, in which case a very large value is dumped. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/netfilter/nf_conntrack_netlink.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index dcd0c9a4bb7..75012585efe 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -1356,7 +1356,10 @@ ctnetlink_exp_dump_expect(struct sk_buff *skb, const struct nf_conntrack_expect *exp) { struct nf_conn *master = exp->master; - __be32 timeout = htonl((exp->timeout.expires - jiffies) / HZ); + long timeout = (exp->timeout.expires - jiffies) / HZ; + + if (timeout < 0) + timeout = 0; if (ctnetlink_exp_dump_tuple(skb, &exp->tuple, CTA_EXPECT_TUPLE) < 0) goto nla_put_failure; @@ -1367,7 +1370,7 @@ ctnetlink_exp_dump_expect(struct sk_buff *skb, CTA_EXPECT_MASTER) < 0) goto nla_put_failure; - NLA_PUT_BE32(skb, CTA_EXPECT_TIMEOUT, timeout); + NLA_PUT_BE32(skb, CTA_EXPECT_TIMEOUT, htonl(timeout)); NLA_PUT_BE32(skb, CTA_EXPECT_ID, htonl((unsigned long)exp)); return 0; -- 2.43.2