diff options
| author | Xi Wang <xi.wang@gmail.com> | 2011-12-30 10:40:17 -0500 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2011-12-31 16:59:04 +0100 |
| commit | c121638277a71c1e1fb44c3e654ea353357bbc2c (patch) | |
| tree | eacfd2881aa785c462587ab8173461b96c396771 | |
| parent | 52793dbe3d60bd73bbebe28b2bfc9f6b4b920d4c (diff) | |
| download | linux-c121638277a71c1e1fb44c3e654ea353357bbc2c.tar.bz2 | |
netfilter: ctnetlink: fix timeout calculation
The sanity check (timeout < 0) never works; the dividend is unsigned
and so is the division, which should have been a signed division.
long timeout = (ct->timeout.expires - jiffies) / HZ;
if (timeout < 0)
timeout = 0;
This patch converts the time values to signed for the division.
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| -rw-r--r-- | net/netfilter/nf_conntrack_netlink.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index b6977776d715..257e77256c5c 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -135,7 +135,7 @@ nla_put_failure: static inline int ctnetlink_dump_timeout(struct sk_buff *skb, const struct nf_conn *ct) { - long timeout = (ct->timeout.expires - jiffies) / HZ; + long timeout = ((long)ct->timeout.expires - (long)jiffies) / HZ; if (timeout < 0) timeout = 0; @@ -1641,7 +1641,7 @@ ctnetlink_exp_dump_expect(struct sk_buff *skb, const struct nf_conntrack_expect *exp) { struct nf_conn *master = exp->master; - long timeout = (exp->timeout.expires - jiffies) / HZ; + long timeout = ((long)exp->timeout.expires - (long)jiffies) / HZ; struct nf_conn_help *help; if (timeout < 0) |