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[NETFILTER]: ctnetlink: fix expectation timeout dumping

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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 <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2007-12-17 22:37:03 -08:00 committed by David S. Miller
parent 77236b6e33
commit d978e5daec
1 changed files with 5 additions and 2 deletions
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7
net/netfilter/nf_conntrack_netlink.c
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@ -1356,7 +1356,10 @@ ctnetlink_exp_dump_expect(struct sk_buff *skb,
const struct nf_conntrack_expect *exp) const struct nf_conntrack_expect *exp)
{ {
struct nf_conn *master = exp->master; 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) if (ctnetlink_exp_dump_tuple(skb, &exp->tuple, CTA_EXPECT_TUPLE) < 0)
goto nla_put_failure; goto nla_put_failure;
@ -1367,7 +1370,7 @@ ctnetlink_exp_dump_expect(struct sk_buff *skb,
CTA_EXPECT_MASTER) < 0) CTA_EXPECT_MASTER) < 0)
goto nla_put_failure; 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)); NLA_PUT_BE32(skb, CTA_EXPECT_ID, htonl((unsigned long)exp));
return 0; return 0;